{"database": "metadata", "table": "run_metadata", "is_view": false, "human_description_en": "where experiment.library_selection = \"cDNA\", experiment.library_source = \"TRANSCRIPTOMIC SINGLE CELL\" and tissue_curation = \"Heart\"", "rows": [[25228, "SRR25685572", "SRX21410761", "SRS18649243", "SRP455780", "PRJNA1006660", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [TOMOseq mouse and zebrafish]", "GSE241156", "Other", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "zebrafish 14dpi heart3", "GSM7717530", null, "source name:adult heart|tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:14dpi|geo loc name:missing|collection date:missing", "zebrafish 14dpi heart3", "Paired end reads were aligned to the transcriptome using bwa version 0.6.2 with default parameters. The right mate of each read pair was mapped to the ensemble of all transcripts and to the set of 92 ERCC spike ins in sense direction. Reads mapping equally to multiple loci were discarded. Mapped reads were assigned to sections based on barcodes according to the CEL seq protocol Hashimshony et al.  Cell Reports  2012 processed data files contain transcript read counts normalized against spike in read count and total read count per section Assembly: GRCm38 for mouse  danrer9 for zebrafish Supplementary files format and content: csv file containing transcript counts per gene rows and section columns Supplementary files format and content: tables of BZ genes and interspecies comparison of BZ between mouse and zebrafish", "adult heart", "Unfixed hearts were isolated and tissue was cut out and embedded in tissue freezing medium. Blocks were cryosectioned  and individual sections were transferred to Eppendorf tubes on dry ice. For extended experimental procedure see also Junker et al. 2014 Cell.", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  Cell Reports  2012; also  see: Junker et al.  2014  Cell", null, "tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:14dpi", "GSM7717530", "GSM7717530: zebrafish 14dpi heart3; Danio rerio; RNA Seq", "GSM7717530 r1", "GSM7717530", "1", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  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Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "zebrafish 14dpi heart2", "GSM7717529", null, "source name:adult heart|tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:14dpi|geo loc name:missing|collection date:missing", "zebrafish 14dpi heart2", "Paired end reads were aligned to the transcriptome using bwa version 0.6.2 with default parameters. The right mate of each read pair was mapped to the ensemble of all transcripts and to the set of 92 ERCC spike ins in sense direction. Reads mapping equally to multiple loci were discarded. Mapped reads were assigned to sections based on barcodes according to the CEL seq protocol Hashimshony et al.  Cell Reports  2012 processed data files contain transcript read counts normalized against spike in read count and total read count per section Assembly: GRCm38 for mouse  danrer9 for zebrafish Supplementary files format and content: csv file containing transcript counts per gene rows and section columns Supplementary files format and content: tables of BZ genes and interspecies comparison of BZ between mouse and zebrafish", "adult heart", "Unfixed hearts were isolated and tissue was cut out and embedded in tissue freezing medium. Blocks were cryosectioned  and individual sections were transferred to Eppendorf tubes on dry ice. For extended experimental procedure see also Junker et al. 2014 Cell.", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  Cell Reports  2012; also  see: Junker et al.  2014  Cell", null, "tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:14dpi", "GSM7717529", "GSM7717529: zebrafish 14dpi heart2; Danio rerio; RNA Seq", "GSM7717529 r1", "GSM7717529", "1", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  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Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "zebrafish 14dpi heart1", "GSM7717528", null, "source name:adult heart|tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:14dpi|geo loc name:missing|collection date:missing", "zebrafish 14dpi heart1", "Paired end reads were aligned to the transcriptome using bwa version 0.6.2 with default parameters. The right mate of each read pair was mapped to the ensemble of all transcripts and to the set of 92 ERCC spike ins in sense direction. Reads mapping equally to multiple loci were discarded. Mapped reads were assigned to sections based on barcodes according to the CEL seq protocol Hashimshony et al.  Cell Reports  2012 processed data files contain transcript read counts normalized against spike in read count and total read count per section Assembly: GRCm38 for mouse  danrer9 for zebrafish Supplementary files format and content: csv file containing transcript counts per gene rows and section columns Supplementary files format and content: tables of BZ genes and interspecies comparison of BZ between mouse and zebrafish", "adult heart", "Unfixed hearts were isolated and tissue was cut out and embedded in tissue freezing medium. Blocks were cryosectioned  and individual sections were transferred to Eppendorf tubes on dry ice. For extended experimental procedure see also Junker et al. 2014 Cell.", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  Cell Reports  2012; also  see: Junker et al.  2014  Cell", null, "tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:14dpi", "GSM7717528", "GSM7717528: zebrafish 14dpi heart1; Danio rerio; RNA Seq", "GSM7717528 r1", "GSM7717528", "1", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  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Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "zebrafish 7dpi heart3", "GSM7717527", null, "source name:adult heart|tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:7dpi|geo loc name:missing|collection date:missing", "zebrafish 7dpi heart3", "Paired end reads were aligned to the transcriptome using bwa version 0.6.2 with default parameters. The right mate of each read pair was mapped to the ensemble of all transcripts and to the set of 92 ERCC spike ins in sense direction. Reads mapping equally to multiple loci were discarded. Mapped reads were assigned to sections based on barcodes according to the CEL seq protocol Hashimshony et al.  Cell Reports  2012 processed data files contain transcript read counts normalized against spike in read count and total read count per section Assembly: GRCm38 for mouse  danrer9 for zebrafish Supplementary files format and content: csv file containing transcript counts per gene rows and section columns Supplementary files format and content: tables of BZ genes and interspecies comparison of BZ between mouse and zebrafish", "adult heart", "Unfixed hearts were isolated and tissue was cut out and embedded in tissue freezing medium. Blocks were cryosectioned  and individual sections were transferred to Eppendorf tubes on dry ice. For extended experimental procedure see also Junker et al. 2014 Cell.", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  Cell Reports  2012; also  see: Junker et al.  2014  Cell", null, "tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:7dpi", "GSM7717527", "GSM7717527: zebrafish 7dpi heart3; Danio rerio; RNA Seq", "GSM7717527 r1", "GSM7717527", "1", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  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Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "zebrafish 7dpi heart2", "GSM7717526", null, "source name:adult heart|tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:7dpi|geo loc name:missing|collection date:missing", "zebrafish 7dpi heart2", "Paired end reads were aligned to the transcriptome using bwa version 0.6.2 with default parameters. The right mate of each read pair was mapped to the ensemble of all transcripts and to the set of 92 ERCC spike ins in sense direction. Reads mapping equally to multiple loci were discarded. Mapped reads were assigned to sections based on barcodes according to the CEL seq protocol Hashimshony et al.  Cell Reports  2012 processed data files contain transcript read counts normalized against spike in read count and total read count per section Assembly: GRCm38 for mouse  danrer9 for zebrafish Supplementary files format and content: csv file containing transcript counts per gene rows and section columns Supplementary files format and content: tables of BZ genes and interspecies comparison of BZ between mouse and zebrafish", "adult heart", "Unfixed hearts were isolated and tissue was cut out and embedded in tissue freezing medium. Blocks were cryosectioned  and individual sections were transferred to Eppendorf tubes on dry ice. For extended experimental procedure see also Junker et al. 2014 Cell.", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  Cell Reports  2012; also  see: Junker et al.  2014  Cell", null, "tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:7dpi", "GSM7717526", "GSM7717526: zebrafish 7dpi heart2; Danio rerio; RNA Seq", "GSM7717526 r1", "GSM7717526", "1", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  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Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "zebrafish 7dpi heart1", "GSM7717525", null, "source name:adult heart|tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:7dpi|geo loc name:missing|collection date:missing", "zebrafish 7dpi heart1", "Paired end reads were aligned to the transcriptome using bwa version 0.6.2 with default parameters. The right mate of each read pair was mapped to the ensemble of all transcripts and to the set of 92 ERCC spike ins in sense direction. Reads mapping equally to multiple loci were discarded. Mapped reads were assigned to sections based on barcodes according to the CEL seq protocol Hashimshony et al.  Cell Reports  2012 processed data files contain transcript read counts normalized against spike in read count and total read count per section Assembly: GRCm38 for mouse  danrer9 for zebrafish Supplementary files format and content: csv file containing transcript counts per gene rows and section columns Supplementary files format and content: tables of BZ genes and interspecies comparison of BZ between mouse and zebrafish", "adult heart", "Unfixed hearts were isolated and tissue was cut out and embedded in tissue freezing medium. Blocks were cryosectioned  and individual sections were transferred to Eppendorf tubes on dry ice. For extended experimental procedure see also Junker et al. 2014 Cell.", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  Cell Reports  2012; also  see: Junker et al.  2014  Cell", null, "tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:7dpi", "GSM7717525", "GSM7717525: zebrafish 7dpi heart1; Danio rerio; RNA Seq", "GSM7717525 r1", "GSM7717525", "1", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  Cell Reports  2012; also  see: Junker et al.  2014  Cell", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP455780", null, "loader:fastq load.py|options:  allowEarlyFileEnd", "D17DPIZF1_R1.fq D17DPIZF1_R2.fq", "fastq fastq", 1073044507.0, 7624815.0, "GSM7717525 r1", null, "A:288576038;C:136858647;G:170330711;T:475869519;N:1409592", null, null, null, null, 288576038, 136858647, 170330711, 475869519, 1409592, "SRX21410756", "SRS18649238", "SRA1751823", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.15938, 0.70435, 0.14583, 0.08079, 0.99981, 0.87949, 0.38461, 0.57027, 75, 76, "T", "B", "mate1 technical by mapping diff", "illumina", "nextseq", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-18", "Adult", "Adult", "Heart", "Cardiovascular System"], [25234, "SRR25685578", "SRX21410755", "SRS18649237", "SRP455780", "PRJNA1006660", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [TOMOseq mouse and zebrafish]", "GSE241156", "Other", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "zebrafish 3dpi heart3", "GSM7717524", null, "source name:adult heart|tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:3dpi|geo loc name:missing|collection date:missing", "zebrafish 3dpi heart3", "Paired end reads were aligned to the transcriptome using bwa version 0.6.2 with default parameters. The right mate of each read pair was mapped to the ensemble of all transcripts and to the set of 92 ERCC spike ins in sense direction. Reads mapping equally to multiple loci were discarded. Mapped reads were assigned to sections based on barcodes according to the CEL seq protocol Hashimshony et al.  Cell Reports  2012 processed data files contain transcript read counts normalized against spike in read count and total read count per section Assembly: GRCm38 for mouse  danrer9 for zebrafish Supplementary files format and content: csv file containing transcript counts per gene rows and section columns Supplementary files format and content: tables of BZ genes and interspecies comparison of BZ between mouse and zebrafish", "adult heart", "Unfixed hearts were isolated and tissue was cut out and embedded in tissue freezing medium. Blocks were cryosectioned  and individual sections were transferred to Eppendorf tubes on dry ice. For extended experimental procedure see also Junker et al. 2014 Cell.", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  Cell Reports  2012; also  see: Junker et al.  2014  Cell", null, "tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:3dpi", "GSM7717524", "GSM7717524: zebrafish 3dpi heart3; Danio rerio; RNA Seq", "GSM7717524 r1", "GSM7717524", "1", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  Cell Reports  2012; also  see: Junker et al.  2014  Cell", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP455780", null, null, "FKHEART3_R1.fastq FKHEART3_R2.fastq", "fastq fastq", 781079621.0, 5184230.0, "GSM7717524 r1", "0:75.26 1:75.40", "A:277491111;C:118539142;G:116911958;T:268048500;N:88910", 75, 75, null, null, 277491111, 118539142, 116911958, 268048500, 88910, "SRX21410755", "SRS18649237", "SRA1751823", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.04348, 0.71869, 0.04347, 0.28823, 1.0, 0.79681, null, 0.53909, 76, 75, "T", "B", "mate1 technical by mapping diff", "illumina", "nextseq", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-18", "Adult", "Adult", "Heart", "Cardiovascular System"], [25235, "SRR25685579", "SRX21410754", "SRS18649236", "SRP455780", "PRJNA1006660", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [TOMOseq mouse and zebrafish]", "GSE241156", "Other", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "zebrafish 3dpi heart2", "GSM7717523", null, "source name:adult heart|tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:3dpi|geo loc name:missing|collection date:missing", "zebrafish 3dpi heart2", "Paired end reads were aligned to the transcriptome using bwa version 0.6.2 with default parameters. The right mate of each read pair was mapped to the ensemble of all transcripts and to the set of 92 ERCC spike ins in sense direction. Reads mapping equally to multiple loci were discarded. Mapped reads were assigned to sections based on barcodes according to the CEL seq protocol Hashimshony et al.  Cell Reports  2012 processed data files contain transcript read counts normalized against spike in read count and total read count per section Assembly: GRCm38 for mouse  danrer9 for zebrafish Supplementary files format and content: csv file containing transcript counts per gene rows and section columns Supplementary files format and content: tables of BZ genes and interspecies comparison of BZ between mouse and zebrafish", "adult heart", "Unfixed hearts were isolated and tissue was cut out and embedded in tissue freezing medium. Blocks were cryosectioned  and individual sections were transferred to Eppendorf tubes on dry ice. For extended experimental procedure see also Junker et al. 2014 Cell.", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  Cell Reports  2012; also  see: Junker et al.  2014  Cell", null, "tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:3dpi", "GSM7717523", "GSM7717523: zebrafish 3dpi heart2; Danio rerio; RNA Seq", "GSM7717523 r1", "GSM7717523", "1", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  Cell Reports  2012; also  see: Junker et al.  2014  Cell", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP455780", null, null, "FKHEART2_R1.fastq FKHEART2_R2.fastq", "fastq fastq", 684820059.0, 4547520.0, "GSM7717523 r1", "0:75.21 1:75.38", "A:258487418;C:93776953;G:97187917;T:235293267;N:74504", 75, 75, null, null, 258487418, 93776953, 97187917, 235293267, 74504, "SRX21410754", "SRS18649236", "SRA1751823", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.09406, 0.79542, 0.09405, 0.0802, 1.0, 0.83029, null, 0.56367, 75, 75, "T", "B", "mate1 technical by mapping diff", "illumina", "nextseq", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-18", "Adult", "Adult", "Heart", "Cardiovascular System"], [25236, "SRR25685580", "SRX21410753", "SRS18649235", "SRP455780", "PRJNA1006660", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [TOMOseq mouse and zebrafish]", "GSE241156", "Other", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "zebrafish 3dpi heart1", "GSM7717522", null, "source name:adult heart|tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:3dpi|geo loc name:missing|collection date:missing", "zebrafish 3dpi heart1", "Paired end reads were aligned to the transcriptome using bwa version 0.6.2 with default parameters. The right mate of each read pair was mapped to the ensemble of all transcripts and to the set of 92 ERCC spike ins in sense direction. Reads mapping equally to multiple loci were discarded. Mapped reads were assigned to sections based on barcodes according to the CEL seq protocol Hashimshony et al.  Cell Reports  2012 processed data files contain transcript read counts normalized against spike in read count and total read count per section Assembly: GRCm38 for mouse  danrer9 for zebrafish Supplementary files format and content: csv file containing transcript counts per gene rows and section columns Supplementary files format and content: tables of BZ genes and interspecies comparison of BZ between mouse and zebrafish", "adult heart", "Unfixed hearts were isolated and tissue was cut out and embedded in tissue freezing medium. Blocks were cryosectioned  and individual sections were transferred to Eppendorf tubes on dry ice. For extended experimental procedure see also Junker et al. 2014 Cell.", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  Cell Reports  2012; also  see: Junker et al.  2014  Cell", null, "tissue:adult heart|transgenic background:wildtype|section thickness:Took every section|section direction:from injured area into the remote myocardium|treatment:cryoinjury|timepoint:3dpi", "GSM7717522", "GSM7717522: zebrafish 3dpi heart1; Danio rerio; RNA Seq", "GSM7717522 r1", "GSM7717522", "1", "Total RNA was isolated by TRIzol extraction. mRNA was barcoded and amplified using the CEL seq protocol Hashimshony et al.  Cell Reports  2012 see also: Junker et al.  2014  Cell CEL seq protocol Hashimshony et al.  Cell Reports  2012; also  see: Junker et al.  2014  Cell", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP455780", null, null, "FKHEART1_R1.fastq FKHEART1_R2.fastq", "fastq fastq", 784558404.0, 5209213.0, "GSM7717522 r1", "0:75.22 1:75.39", "A:291009319;C:102718146;G:111606154;T:279144074;N:80711", 75, 75, null, null, 291009319, 102718146, 111606154, 279144074, 80711, "SRX21410753", "SRS18649235", "SRA1751823", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.13119, 0.82035, 0.12871, 0.08445, 0.99997, 0.82785, 0.0, 0.56254, 76, 76, "T", "B", "mate1 technical by mapping diff", "illumina", "nextseq", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-18", "Adult", "Adult", "Heart", "Cardiovascular System"], [25239, "SRR25723792", "SRX21447930", "SRS18684553", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 4", "GSM7728123", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 4", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728123", "GSM7728123: hmga1a mutant plate 4; Danio rerio; RNA Seq", "GSM7728123 r1", "GSM7728123", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-008_HNWVVBGX9_S7_L001_R2_001.fastq.gz HUB-DB-008_HNWVVBGX9_S7_L001_R1_001.fastq.gz", "fastq fastq", 529790530.0, 6160355.0, "GSM7728123 r1", "0:26 1:60", "A:134254092;C:100685793;G:108463112;T:186279563;N:107970", 26, 60, null, null, 134254092, 100685793, 108463112, 186279563, 107970, "SRX21447930", "SRS18684553", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.11277, 0.80912, 0.10457, 0.43275, 0.99131, 0.93933, 0.67026, 0.54274, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25240, "SRR25723793", "SRX21447930", "SRS18684553", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 4", "GSM7728123", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 4", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728123", "GSM7728123: hmga1a mutant plate 4; Danio rerio; RNA Seq", "GSM7728123 r1", "GSM7728123", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-008_HNWVVBGX9_S7_L002_R1_001.fastq.gz HUB-DB-008_HNWVVBGX9_S7_L002_R2_001.fastq.gz", "fastq fastq", 611015122.0, 7104827.0, "GSM7728123 r2", "0:26 1:60", "A:152137832;C:116026517;G:127735448;T:214967198;N:148127", 26, 60, null, null, 152137832, 116026517, 127735448, 214967198, 148127, "SRX21447930", "SRS18684553", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.11413, 0.81785, 0.10565, 0.44205, 0.99119, 0.93419, 0.59743, 0.53882, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25241, "SRR25723794", "SRX21447930", "SRS18684553", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 4", "GSM7728123", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 4", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728123", "GSM7728123: hmga1a mutant plate 4; Danio rerio; RNA Seq", "GSM7728123 r1", "GSM7728123", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-008_HNWVVBGX9_S7_L003_R2_001.fastq.gz HUB-DB-008_HNWVVBGX9_S7_L003_R1_001.fastq.gz", "fastq fastq", 554981822.0, 6453277.0, "GSM7728123 r3", "0:26 1:60", "A:140664360;C:105281601;G:113575873;T:195359632;N:100356", 26, 60, null, null, 140664360, 105281601, 113575873, 195359632, 100356, "SRX21447930", "SRS18684553", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.11352, 0.80651, 0.10538, 0.42971, 0.99137, 0.93994, 0.65893, 0.53098, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25242, "SRR25723795", "SRX21447930", "SRS18684553", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 4", "GSM7728123", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 4", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728123", "GSM7728123: hmga1a mutant plate 4; Danio rerio; RNA Seq", "GSM7728123 r1", "GSM7728123", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-008_HNWVVBGX9_S7_L004_R2_001.fastq.gz HUB-DB-008_HNWVVBGX9_S7_L004_R1_001.fastq.gz", "fastq fastq", 459861436.0, 5347226.0, "GSM7728123 r4", "0:26 1:60", "A:115949245;C:86913961;G:95720860;T:161187969;N:89401", 26, 60, null, null, 115949245, 86913961, 95720860, 161187969, 89401, "SRX21447930", "SRS18684553", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.11249, 0.81109, 0.10407, 0.43334, 0.99135, 0.94034, 0.64852, 0.53864, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25243, "SRR25723796", "SRX21447929", "SRS18684552", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 3", "GSM7728122", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 3", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728122", "GSM7728122: hmga1a mutant plate 3; Danio rerio; RNA Seq", "GSM7728122 r1", "GSM7728122", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-007_HNWVVBGX9_S6_L001_R1_001.fastq.gz HUB-DB-007_HNWVVBGX9_S6_L001_R2_001.fastq.gz", "fastq fastq", 584059454.0, 6791389.0, "GSM7728122 r1", "0:26 1:60", "A:162038298;C:107975394;G:118251259;T:195669218;N:125285", 26, 60, null, null, 162038298, 107975394, 118251259, 195669218, 125285, "SRX21447929", "SRS18684552", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.08872, 0.68673, 0.08328, 0.37858, 0.99346, 0.94945, 0.60282, 0.42608, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25244, "SRR25723797", "SRX21447929", "SRS18684552", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 3", "GSM7728122", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 3", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728122", "GSM7728122: hmga1a mutant plate 3; Danio rerio; RNA Seq", "GSM7728122 r1", "GSM7728122", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-007_HNWVVBGX9_S6_L002_R1_001.fastq.gz HUB-DB-007_HNWVVBGX9_S6_L002_R2_001.fastq.gz", "fastq fastq", 641359448.0, 7457668.0, "GSM7728122 r2", "0:26 1:60", "A:174443468;C:118438230;G:132604485;T:215721538;N:151727", 26, 60, null, null, 174443468, 118438230, 132604485, 215721538, 151727, "SRX21447929", "SRS18684552", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.09277, 0.71427, 0.08722, 0.3942, 0.99338, 0.94594, 0.56903, 0.45872, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25245, "SRR25723798", "SRX21447929", "SRS18684552", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 3", "GSM7728122", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 3", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728122", "GSM7728122: hmga1a mutant plate 3; Danio rerio; RNA Seq", "GSM7728122 r1", "GSM7728122", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-007_HNWVVBGX9_S6_L003_R1_001.fastq.gz HUB-DB-007_HNWVVBGX9_S6_L003_R2_001.fastq.gz", "fastq fastq", 609857046.0, 7091361.0, "GSM7728122 r3", "0:26 1:60", "A:169007241;C:112556048;G:123345017;T:204831635;N:117105", 26, 60, null, null, 169007241, 112556048, 123345017, 204831635, 117105, "SRX21447929", "SRS18684552", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.09058, 0.68251, 0.08521, 0.37718, 0.99332, 0.95156, 0.59403, 0.44605, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25246, "SRR25723799", "SRX21447929", "SRS18684552", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 3", "GSM7728122", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 3", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728122", "GSM7728122: hmga1a mutant plate 3; Danio rerio; RNA Seq", "GSM7728122 r1", "GSM7728122", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-007_HNWVVBGX9_S6_L004_R1_001.fastq.gz HUB-DB-007_HNWVVBGX9_S6_L004_R2_001.fastq.gz", "fastq fastq", 514759966.0, 5985581.0, "GSM7728122 r4", "0:26 1:60", "A:142060859;C:94579961;G:106100208;T:171916257;N:102681", 26, 60, null, null, 142060859, 94579961, 106100208, 171916257, 102681, "SRX21447929", "SRS18684552", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.08962, 0.7176, 0.08411, 0.39394, 0.99293, 0.95189, 0.55398, 0.46149, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25247, "SRR25723800", "SRX21447928", "SRS18684551", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "wildtype plate 3", "GSM7728121", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "wildtype plate 3", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728121", "GSM7728121: wildtype plate 3; Danio rerio; RNA Seq", "GSM7728121 r1", "GSM7728121", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-006_HNWVVBGX9_S5_L001_R1_001.fastq.gz HUB-DB-006_HNWVVBGX9_S5_L001_R2_001.fastq.gz", "fastq fastq", 929999528.0, 10813948.0, "GSM7728121 r1", "0:26 1:60", "A:240334465;C:174255952;G:184260587;T:330943403;N:205121", 26, 60, null, null, 240334465, 174255952, 184260587, 330943403, 205121, "SRX21447928", "SRS18684551", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.11113, 0.87407, 0.10304, 0.43976, 0.992, 0.93034, 0.63031, 0.44624, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25248, "SRR25723801", "SRX21447928", "SRS18684551", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "wildtype plate 3", "GSM7728121", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "wildtype plate 3", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728121", "GSM7728121: wildtype plate 3; Danio rerio; RNA Seq", "GSM7728121 r1", "GSM7728121", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-006_HNWVVBGX9_S5_L002_R1_001.fastq.gz HUB-DB-006_HNWVVBGX9_S5_L002_R2_001.fastq.gz", "fastq fastq", 987824896.0, 11486336.0, "GSM7728121 r2", "0:26 1:60", "A:251121714;C:184449811;G:201317783;T:350692225;N:243363", 26, 60, null, null, 251121714, 184449811, 201317783, 350692225, 243363, "SRX21447928", "SRS18684551", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.11267, 0.87874, 0.10429, 0.4457, 0.99184, 0.92498, 0.56612, 0.45489, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25249, "SRR25723802", "SRX21447928", "SRS18684551", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "wildtype plate 3", "GSM7728121", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "wildtype plate 3", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728121", "GSM7728121: wildtype plate 3; Danio rerio; RNA Seq", "GSM7728121 r1", "GSM7728121", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-006_HNWVVBGX9_S5_L003_R1_001.fastq.gz HUB-DB-006_HNWVVBGX9_S5_L003_R2_001.fastq.gz", "fastq fastq", 959933032.0, 11162012.0, "GSM7728121 r3", "0:26 1:60", "A:247983556;C:179564753;G:190342582;T:341858456;N:183685", 26, 60, null, null, 247983556, 179564753, 190342582, 341858456, 183685, "SRX21447928", "SRS18684551", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.1118, 0.87156, 0.10348, 0.43983, 0.99149, 0.93034, 0.65287, 0.44548, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25250, "SRR25723803", "SRX21447928", "SRS18684551", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "wildtype plate 3", "GSM7728121", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "wildtype plate 3", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728121", "GSM7728121: wildtype plate 3; Danio rerio; RNA Seq", "GSM7728121 r1", "GSM7728121", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-006_HNWVVBGX9_S5_L004_R1_001.fastq.gz HUB-DB-006_HNWVVBGX9_S5_L004_R2_001.fastq.gz", "fastq fastq", 798370766.0, 9283381.0, "GSM7728121 r4", "0:26 1:60", "A:205538880;C:148510556;G:161196381;T:282964175;N:160774", 26, 60, null, null, 205538880, 148510556, 161196381, 282964175, 160774, "SRX21447928", "SRS18684551", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.11018, 0.87017, 0.10214, 0.43625, 0.99226, 0.93332, 0.56058, 0.44211, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25251, "SRR25723804", "SRX21447927", "SRS18684550", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "wildtype plate 2", "GSM7728120", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "wildtype plate 2", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728120", "GSM7728120: wildtype plate 2; Danio rerio; RNA Seq", "GSM7728120 r1", "GSM7728120", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-005_HNWVVBGX9_S4_L001_R1_001.fastq.gz HUB-DB-005_HNWVVBGX9_S4_L001_R2_001.fastq.gz", "fastq fastq", 806178534.0, 9374169.0, "GSM7728120 r1", "0:26 1:60", "A:213590554;C:148614157;G:163804315;T:279996916;N:172592", 26, 60, null, null, 213590554, 148614157, 163804315, 279996916, 172592, "SRX21447927", "SRS18684550", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.10778, 0.79219, 0.10092, 0.39443, 0.99255, 0.93712, 0.64412, 0.39504, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25252, "SRR25723805", "SRX21447927", "SRS18684550", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "wildtype plate 2", "GSM7728120", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "wildtype plate 2", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728120", "GSM7728120: wildtype plate 2; Danio rerio; RNA Seq", "GSM7728120 r1", "GSM7728120", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-005_HNWVVBGX9_S4_L002_R1_001.fastq.gz HUB-DB-005_HNWVVBGX9_S4_L002_R2_001.fastq.gz", "fastq fastq", 874594286.0, 10169701.0, "GSM7728120 r2", "0:26 1:60", "A:227213153;C:160851586;G:182364146;T:303951184;N:214217", 26, 60, null, null, 227213153, 160851586, 182364146, 303951184, 214217, "SRX21447927", "SRS18684550", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.11064, 0.80317, 0.1038, 0.40093, 0.99249, 0.9332, 0.652, 0.40914, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25253, "SRR25723806", "SRX21447927", "SRS18684550", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "wildtype plate 2", "GSM7728120", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "wildtype plate 2", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728120", "GSM7728120: wildtype plate 2; Danio rerio; RNA Seq", "GSM7728120 r1", "GSM7728120", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-005_HNWVVBGX9_S4_L003_R1_001.fastq.gz HUB-DB-005_HNWVVBGX9_S4_L003_R2_001.fastq.gz", "fastq fastq", 831835860.0, 9672510.0, "GSM7728120 r3", "0:26 1:60", "A:220300204;C:153061412;G:168938657;T:289375449;N:160138", 26, 60, null, null, 220300204, 153061412, 168938657, 289375449, 160138, "SRX21447927", "SRS18684550", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.10987, 0.78665, 0.10348, 0.39264, 0.99316, 0.93661, 0.66753, 0.37676, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25254, "SRR25723807", "SRX21447927", "SRS18684550", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "wildtype plate 2", "GSM7728120", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "wildtype plate 2", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728120", "GSM7728120: wildtype plate 2; Danio rerio; RNA Seq", "GSM7728120 r1", "GSM7728120", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-005_HNWVVBGX9_S4_L004_R2_001.fastq.gz HUB-DB-005_HNWVVBGX9_S4_L004_R1_001.fastq.gz", "fastq fastq", 692573136.0, 8053176.0, "GSM7728120 r4", "0:26 1:60", "A:182418113;C:126757471;G:143869511;T:239393143;N:134898", 26, 60, null, null, 182418113, 126757471, 143869511, 239393143, 134898, "SRX21447927", "SRS18684550", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.10825, 0.81365, 0.10178, 0.40513, 0.99308, 0.94032, 0.67299, 0.41125, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25255, "SRR25723808", "SRX21447926", "SRS18684549", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 2", "GSM7728119", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 2", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728119", "GSM7728119: hmga1a mutant plate 2; Danio rerio; RNA Seq", "GSM7728119 r1", "GSM7728119", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-004_AHVKTGBGX7_S7_L001_R1_001.fastq.gz HUB-DB-004_AHVKTGBGX7_S7_L001_R2_001.fastq.gz", "fastq fastq", 364147736.0, 4234276.0, "GSM7728119 r1", "0:26 1:60", "A:94538754;C:69024492;G:68361658;T:132108181;N:114651", 26, 60, null, null, 94538754, 69024492, 68361658, 132108181, 114651, "SRX21447926", "SRS18684549", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.11558, 0.78278, 0.10659, 0.24226, 0.9893, 0.92719, 0.58692, 0.48105, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25256, "SRR25723809", "SRX21447926", "SRS18684549", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 2", "GSM7728119", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 2", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728119", "GSM7728119: hmga1a mutant plate 2; Danio rerio; RNA Seq", "GSM7728119 r1", "GSM7728119", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-004_AHVKTGBGX7_S7_L002_R1_001.fastq.gz HUB-DB-004_AHVKTGBGX7_S7_L002_R2_001.fastq.gz", "fastq fastq", 377653262.0, 4391317.0, "GSM7728119 r2", "0:26 1:60", "A:99999342;C:71104204;G:70005970;T:136434888;N:108858", 26, 60, null, null, 99999342, 71104204, 70005970, 136434888, 108858, "SRX21447926", "SRS18684549", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.11405, 0.77996, 0.10525, 0.24008, 0.98963, 0.93616, 0.60855, 0.44129, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25257, "SRR25723810", "SRX21447926", "SRS18684549", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 2", "GSM7728119", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 2", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728119", "GSM7728119: hmga1a mutant plate 2; Danio rerio; RNA Seq", "GSM7728119 r1", "GSM7728119", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-004_AHVKTGBGX7_S7_L003_R1_001.fastq.gz HUB-DB-004_AHVKTGBGX7_S7_L003_R2_001.fastq.gz", "fastq fastq", 306947588.0, 3569158.0, "GSM7728119 r3", "0:26 1:60", "A:80261116;C:58220837;G:57196503;T:111195958;N:73174", 26, 60, null, null, 80261116, 58220837, 57196503, 111195958, 73174, "SRX21447926", "SRS18684549", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.11141, 0.76713, 0.10254, 0.23772, 0.98938, 0.93314, 0.62261, 0.47885, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25258, "SRR25723811", "SRX21447926", "SRS18684549", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 2", "GSM7728119", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 2", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728119", "GSM7728119: hmga1a mutant plate 2; Danio rerio; RNA Seq", "GSM7728119 r1", "GSM7728119", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-004_AHVKTGBGX7_S7_L004_R1_001.fastq.gz HUB-DB-004_AHVKTGBGX7_S7_L004_R2_001.fastq.gz", "fastq fastq", 389472414.0, 4528749.0, "GSM7728119 r4", "0:26 1:60", "A:102486709;C:73105388;G:73019179;T:140769931;N:91207", 26, 60, null, null, 102486709, 73105388, 73019179, 140769931, 91207, "SRX21447926", "SRS18684549", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.11502, 0.78307, 0.10673, 0.24219, 0.98967, 0.93308, 0.64527, 0.43659, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25259, "SRR25723812", "SRX21447925", "SRS18684547", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 1", "GSM7728118", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 1", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728118", "GSM7728118: hmga1a mutant plate 1; Danio rerio; RNA Seq", "GSM7728118 r1", "GSM7728118", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-003_AHVKTGBGX7_S6_L001_R1_001.fastq.gz HUB-DB-003_AHVKTGBGX7_S6_L001_R2_001.fastq.gz", "fastq fastq", 381365624.0, 4434484.0, "GSM7728118 r1", "0:26 1:60", "A:102130758;C:71032768;G:73641442;T:134437630;N:123026", 26, 60, null, null, 102130758, 71032768, 73641442, 134437630, 123026, "SRX21447925", "SRS18684547", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.10052, 0.7243, 0.09214, 0.25633, 0.9892, 0.92985, 0.52345, 0.5112, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25260, "SRR25723813", "SRX21447925", "SRS18684547", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 1", "GSM7728118", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 1", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728118", "GSM7728118: hmga1a mutant plate 1; Danio rerio; RNA Seq", "GSM7728118 r1", "GSM7728118", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-003_AHVKTGBGX7_S6_L002_R1_001.fastq.gz HUB-DB-003_AHVKTGBGX7_S6_L002_R2_001.fastq.gz", "fastq fastq", 400525220.0, 4657270.0, "GSM7728118 r2", "0:26 1:60", "A:109307778;C:73934198;G:76916762;T:140249156;N:117326", 26, 60, null, null, 109307778, 73934198, 76916762, 140249156, 117326, "SRX21447925", "SRS18684547", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.09923, 0.71601, 0.09078, 0.25139, 0.98948, 0.93914, 0.52314, 0.5078, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25261, "SRR25723814", "SRX21447925", "SRS18684547", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 1", "GSM7728118", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 1", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728118", "GSM7728118: hmga1a mutant plate 1; Danio rerio; RNA Seq", "GSM7728118 r1", "GSM7728118", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-003_AHVKTGBGX7_S6_L003_R1_001.fastq.gz HUB-DB-003_AHVKTGBGX7_S6_L003_R2_001.fastq.gz", "fastq fastq", 341364014.0, 3969349.0, "GSM7728118 r3", "0:26 1:60", "A:91716565;C:63676514;G:65563102;T:120323617;N:84216", 26, 60, null, null, 91716565, 63676514, 65563102, 120323617, 84216, "SRX21447925", "SRS18684547", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.09826, 0.7079, 0.09008, 0.2497, 0.98918, 0.93809, 0.52649, 0.49781, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25262, "SRR25723815", "SRX21447925", "SRS18684547", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "hmga1a mutant plate 1", "GSM7728118", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "hmga1a mutant plate 1", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:hmga1a mutant|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728118", "GSM7728118: hmga1a mutant plate 1; Danio rerio; RNA Seq", "GSM7728118 r1", "GSM7728118", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-003_AHVKTGBGX7_S6_L004_R1_001.fastq.gz HUB-DB-003_AHVKTGBGX7_S6_L004_R2_001.fastq.gz", "fastq fastq", 414000732.0, 4813962.0, "GSM7728118 r4", "0:26 1:60", "A:112224009;C:76213738;G:80259829;T:145201785;N:101371", 26, 60, null, null, 112224009, 76213738, 80259829, 145201785, 101371, "SRX21447925", "SRS18684547", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.10103, 0.71981, 0.09294, 0.25413, 0.98902, 0.93669, 0.52994, 0.51172, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25263, "SRR25723816", "SRX21447924", "SRS18684548", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "wildtype plate 1", "GSM7728117", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "wildtype plate 1", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728117", "GSM7728117: wildtype plate 1; Danio rerio; RNA Seq", "GSM7728117 r1", "GSM7728117", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-001_AHVKTGBGX7_S5_L001_R1_001.fastq.gz HUB-DB-001_AHVKTGBGX7_S5_L001_R2_001.fastq.gz", "fastq fastq", 471703034.0, 5484919.0, "GSM7728117 r1", "0:26 1:60", "A:125045012;C:89627491;G:85413855;T:171466861;N:149815", 26, 60, null, null, 125045012, 89627491, 85413855, 171466861, 149815, "SRX21447924", "SRS18684548", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.10906, 0.68002, 0.10212, 0.30506, 0.99101, 0.94219, 0.63738, 0.45862, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25264, "SRR25723817", "SRX21447924", "SRS18684548", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "wildtype plate 1", "GSM7728117", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "wildtype plate 1", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728117", "GSM7728117: wildtype plate 1; Danio rerio; RNA Seq", "GSM7728117 r1", "GSM7728117", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-001_AHVKTGBGX7_S5_L002_R1_001.fastq.gz HUB-DB-001_AHVKTGBGX7_S5_L002_R2_001.fastq.gz", "fastq fastq", 489372938.0, 5690383.0, "GSM7728117 r2", "0:26 1:60", "A:131516821;C:92202683;G:88685608;T:176824985;N:142841", 26, 60, null, null, 131516821, 92202683, 88685608, 176824985, 142841, "SRX21447924", "SRS18684548", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.11042, 0.68086, 0.10299, 0.30411, 0.99093, 0.94856, 0.60224, 0.46578, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25265, "SRR25723818", "SRX21447924", "SRS18684548", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "wildtype plate 1", "GSM7728117", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "wildtype plate 1", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728117", "GSM7728117: wildtype plate 1; Danio rerio; RNA Seq", "GSM7728117 r1", "GSM7728117", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-001_AHVKTGBGX7_S5_L003_R1_001.fastq.gz HUB-DB-001_AHVKTGBGX7_S5_L003_R2_001.fastq.gz", "fastq fastq", 407735288.0, 4741108.0, "GSM7728117 r3", "0:26 1:60", "A:108841476;C:77418215;G:73171345;T:148203998;N:100254", 26, 60, null, null, 108841476, 77418215, 73171345, 148203998, 100254, "SRX21447924", "SRS18684548", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.10882, 0.67068, 0.10177, 0.29557, 0.99151, 0.94686, 0.65762, 0.42658, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [25266, "SRR25723819", "SRX21447924", "SRS18684548", "SRP456323", "PRJNA1008049", "Interspecies comparison reveals Hmga1 as driver of cardiac regeneration [scRNA seq]", "GSE241390", "Transcriptome Analysis", "The prospect of repairing the heart post a myocardial infarction by promoting cardiomyocyte proliferation has gained momentum from studies showing the heart's regenerative ability in fish  amphibians and neonatal mammals. Despite evidence of varying cardiomyocyte proliferation rates among species  the molecular mechanisms driving cardiomyocyte cell cycle re entry remain insufficiently understood. In this study  we employed spatial transcriptomics and identified high mobility group AT hook 1a Hmga1a as being upregulated in cardiomyocytes of the injury border zone in zebrafish  but not in mice. Through knock out and cardiomyocyte specific overexpression of hmga1a  we found that Hmga1a was required for zebrafish heart regeneration and sufficient to drive cardiomyocyte proliferation. In addition  a single injection of Hmga1 virus in injured mouse hearts resulted in increased border zone cardiomyocyte proliferation and improved heart function. Mechanistically  Hmga1 expression reduced repressive H3K27me3 histone modifications from developmentally regulated genes and induced a border zone like transcriptional program in adult cardiomyocytes. Our study demonstrates the value of interspecies comparisons by identifying Hmga1 as a critical driver of heart regeneration and highlights Hmga1 as a promising therapeutic candidate to improve cardiac xxx post injury. Overall design: TOMOseq was performed on mouse and zebrafish hearts at 3  7 and 14 xxx post injury for the interspecies comparison. single cell RNA sequencing was performed on wildtype versus hmga1a mutant zebrafish cardiomyocytes 7 days post cryoinjury to assess differences during heart regeneration. Bulk RNA sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect in an uninjured heart. bulk sortChIC sequencing was performed on control versus Hmga1a overexpression cardiomyocytes to assess the effect of Hmga1a on the chromatin.", "parent bioproject:PRJNA1006653", "pubmed:39747457", null, "wildtype plate 1", "GSM7728117", null, "source name:adult heart|tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury|geo loc name:missing|collection date:missing", "wildtype plate 1", "Based on the distribution of the log10 total reads plotted against the frequency  we introduced a cutoff at minimally 600 reads per cell to be included for further analysis which left us with a total of 1310 cells 653 wildtype and 657 hmga1a /  cells. Next  single cell data was analyzed using Seurat 81. Using the following parameters: Variable features = all genes  dimensions = 8  resolution = 0.7. This resulted in the identification of 6 clusters which were plotted in a two dimensional UMAP. Monocle2 was used to identify genes that were differentially expressed over pseudo time and organized in a self organizing map with of 8 modules. Pseudo temporal values assigned to single cells were integrated in our Seurat object and the pseudo temporal ordering was plotted on the UMAP. DAVID was used to perform GO analysis for the 8 modules. Assembly: danrer9 Supplementary files format and content: excel file containing pseudotime modules and their  genes and GO terms per module Supplementary files format and content: count tables transcriptcounts", "adult heart", "cryoinjury was performed 7 days before hearts were extracted", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "tissue:adult heart|genotype:nppa:mCitrine|genotype:wildtype|cell type:border z1 cardiomyocytes|treatment:7 days post cryoinjury", "GSM7728117", "GSM7728117: wildtype plate 1; Danio rerio; RNA Seq", "GSM7728117 r1", "GSM7728117", "1", "Unfixed ventricles were dissociated by Collagenase and TrypLE Express treatment to prepare single cell solutions. Cells were subsequently FACS sorted based on nppa:mCitrine expression in 384 well plates  each well containing 1 cell  containing Vapor Lock oil with CEL Seq2 barcoded primers  spike in mRNA and dNTPs Single Cell Discoveries. Plates were spun down and frozen at  80oC until ready for library prep. Single cell sequencing libraries were prepared by Single Cell Discoveries Utrecht  The Netherlands using the SORT seq protocol . The CEL Seq2 protocol was used for library prep Hashimshony et al.  2016. Illumina sequencing libraries were prepared with the TruSeq small RNA primers Illumina and paired end sequenced at 75 bp read length on the Illumina NextSeq platform. In total seven 384 well plates were sequenced containing one cell per well of which three were obtained from wildtype cells and four from hmga1a mutant cells.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP456323", null, null, "HUB-DB-001_AHVKTGBGX7_S5_L004_R1_001.fastq.gz HUB-DB-001_AHVKTGBGX7_S5_L004_R2_001.fastq.gz", "fastq fastq", 505539304.0, 5878364.0, "GSM7728117 r4", "0:26 1:60", "A:135189083;C:94908231;G:92431583;T:182885125;N:125282", 26, 60, null, null, 135189083, 94908231, 92431583, 182885125, 125282, "SRX21447924", "SRS18684548", "SRA1698978", "Jeroen Bakkers, Hubrecht Institute", "Jeroen Bakkers, Hubrecht Institute", 2, 0.10989, 0.68603, 0.10286, 0.30542, 0.99107, 0.94777, 0.65338, 0.42121, 26, 60, "T", "B", "sc-like readlen", "illumina", "nextseq", "unknown", "small_rna", "trueseq", "sc", "single_cell_plate", "celseq", null, "Netherlands", "2023-08-22", "Adult", "Adult", "Heart", "Cardiovascular System"], [26482, "SRR25930974", "SRX21649989", "SRS18818461", "SRP458853", "PRJNA1013567", "scRNA seq of 50 hpf and 80 hpf isolated zebrafish hearts", "GSE242483", "Transcriptome Analysis", "Seeking to identify additional transcription factors required for cardiac valve formation  we determined and explored the transcriptional landscape of endocardial cells at the time when key morphogenetic events underlying valve development take place. Overall design: We isolated wild type zebrafish hearts at 50 hpf when valve identity has just been established  and at 80 hpf when forming valves are first observed", null, "pubmed:38748804", null, "80hpf", "GSM7764482", null, "source name:heart|tissue:heart|genotype:wild type|age:80hpf|geo loc name:missing|collection date:missing", "80hpf", "Reads were aligned against the zebrafish genome and counted by StarSolo. Preprocessed counts were further analysed using Scanpy. Basic cell quality control was conducted by taking the number of detected genes and mitochondrial content into consideration. We removed cells that did not express more than 300 genes or had a mitochondrial content greater than 8%. Furthermore  we filtered genes if they were detected in less than 30 cells. Raw counts per cell were normalised to the median count over all cells and transformed into log space to stabilise variance. We initially reduced dimensionality of the dataset using PCA  retaining 50 principal components. Subsequent steps  like low dimensional UMAP embedding and cell clustering  were based on the initial PCA. Final data visualization was done by scanpy and cellxgene packages. Assembly: DanRer11 Supplementary files format and content: starsolo outputs", "heart", null, "Whole hearts were isolated and cardiac cells were dissociated. Dead cells were removed from the final cell isolate by FACs sorting in PBS without xxx and Magnesium and with 0.04% BSA. Each sample was run separately on a lane in a Chromium controller with Chromium Next GEM Single Cell 3\u02b9 Reagent Kits v3 1 10xGenomics.  scRNA seq library preparation was done using a standard protocol  and sequencing was done on a Nextseq2000", null, "tissue:heart|genotype:wild type|age:80hpf", "GSM7764482", "GSM7764482: 80hpf; Danio rerio; RNA Seq", "GSM7764482 r1", "GSM7764482", "1", "Whole hearts were isolated and cardiac cells were dissociated. Dead cells were removed from the final cell isolate by FACs sorting in PBS without xxx and Magnesium and with 0.04% BSA. Each sample was run separately on a lane in a Chromium controller with Chromium Next GEM Single Cell 3\u02b9 Reagent Kits v3 1 10xGenomics.  scRNA seq library preparation was done using a standard protocol  and sequencing was done on a Nextseq2000", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 2000", null, "SRP458853", null, null, "Giulia_80hpf_S2_R1_001.fastq.gz Giulia_80hpf_S2_R2_001.fastq.gz", "fastq fastq", 18811433188.0, 225273324.0, "GSM7764482 r1", "0:28 1:55.50", "A:5135587480;C:4020079745;G:4129712330;T:5427444755;N:98608878", 28, 55, null, null, 5135587480, 4020079745, 4129712330, 5427444755, 98608878, "SRX21649989", "SRS18818461", "SRA1706674", "Bioinformatics, Max-Planck-Institute for Heart and Lung Research", "Bioinformatics, Max-Planck-Institute for Heart and Lung Research", 2, 0.00187, 0.93611, 0.00071, 0.16105, 0.99626, 0.79825, 0.41545, 0.50249, 28, 55, "T", "B", "sc-like readlen", "illumina", "nextseq_v2", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Germany", "2023-09-06", "Larval", "Larval", "Heart", "Cardiovascular System"], [26483, "SRR25930975", "SRX21649988", "SRS18818460", "SRP458853", "PRJNA1013567", "scRNA seq of 50 hpf and 80 hpf isolated zebrafish hearts", "GSE242483", "Transcriptome Analysis", "Seeking to identify additional transcription factors required for cardiac valve formation  we determined and explored the transcriptional landscape of endocardial cells at the time when key morphogenetic events underlying valve development take place. Overall design: We isolated wild type zebrafish hearts at 50 hpf when valve identity has just been established  and at 80 hpf when forming valves are first observed", null, "pubmed:38748804", null, "50hpf", "GSM7764481", null, "source name:heart|tissue:heart|genotype:wild type|age:50hpf|geo loc name:missing|collection date:missing", "50hpf", "Reads were aligned against the zebrafish genome and counted by StarSolo. Preprocessed counts were further analysed using Scanpy. Basic cell quality control was conducted by taking the number of detected genes and mitochondrial content into consideration. We removed cells that did not express more than 300 genes or had a mitochondrial content greater than 8%. Furthermore  we filtered genes if they were detected in less than 30 cells. Raw counts per cell were normalised to the median count over all cells and transformed into log space to stabilise variance. We initially reduced dimensionality of the dataset using PCA  retaining 50 principal components. Subsequent steps  like low dimensional UMAP embedding and cell clustering  were based on the initial PCA. Final data visualization was done by scanpy and cellxgene packages. Assembly: DanRer11 Supplementary files format and content: starsolo outputs", "heart", null, "Whole hearts were isolated and cardiac cells were dissociated. Dead cells were removed from the final cell isolate by FACs sorting in PBS without xxx and Magnesium and with 0.04% BSA. Each sample was run separately on a lane in a Chromium controller with Chromium Next GEM Single Cell 3\u02b9 Reagent Kits v3 1 10xGenomics.  scRNA seq library preparation was done using a standard protocol  and sequencing was done on a Nextseq2000", null, "tissue:heart|genotype:wild type|age:50hpf", "GSM7764481", "GSM7764481: 50hpf; Danio rerio; RNA Seq", "GSM7764481 r1", "GSM7764481", "1", "Whole hearts were isolated and cardiac cells were dissociated. Dead cells were removed from the final cell isolate by FACs sorting in PBS without xxx and Magnesium and with 0.04% BSA. Each sample was run separately on a lane in a Chromium controller with Chromium Next GEM Single Cell 3\u02b9 Reagent Kits v3 1 10xGenomics.  scRNA seq library preparation was done using a standard protocol  and sequencing was done on a Nextseq2000", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 2000", null, "SRP458853", null, null, "Giulia_50hpf_S1_R2_001.fastq.gz Giulia_50hpf_S1_R1_001.fastq.gz", "fastq fastq", 19874763820.0, 237988724.0, "GSM7764481 r1", "0:28 1:55.51", "A:5320257914;C:4424267230;G:4320623789;T:5708249185;N:101365702", 28, 55, null, null, 5320257914, 4424267230, 4320623789, 5708249185, 101365702, "SRX21649988", "SRS18818460", "SRA1706674", "Bioinformatics, Max-Planck-Institute for Heart and Lung Research", "Bioinformatics, Max-Planck-Institute for Heart and Lung Research", 2, 0.00185, 0.94414, 0.00087, 0.13397, 0.99675, 0.80172, 0.41142, 0.51985, 28, 56, "T", "B", "sc-like readlen", "illumina", "nextseq_v2", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Germany", "2023-09-06", "Hatching", "Embryo", "Heart", "Cardiovascular System"], [28771, "SRR26639098", "SRX22339478", "SRS19389127", "SRP469857", "PRJNA1034995", "Spinster homolog 1 spns1 dependent endocardial autophagy lysosomal pathway drives valve morphogenesis through the control of Notch1 signaling.", "GSE246850", "Transcriptome Analysis", "Autophagy lysosomal degradation is an evolutionarily conserved process key to cellular homeostasis  differentiation  and stress survival  which is particularly important to the pathophysiology of the cardiovascular system. What is more  both experimental and clinical observations indicate that autophagy lysosomal degradation affects correct cardiac morphogenesis  and in particular valve development. However  it is still unclear which cells upregulate autophagy lysosomal degradation and for which specific cellular processes it is required.  Here  we introduce novel zebrafish transgenic models to visualize autophagosomes and lysosomes in vivo and to follow their temporal and cellular localization in the larval heart. This allowed us to determine the kinetics of autophagosome and lysosome vesicle formation and to observe  significant accumulation of lysosomal vesicles during the development of the atrioventricular and bulboventricular valves. We then addressed the functional role of lysosomal degradation in cardiovascular development using a spns1 mutant as a zebrafish model of lysosomal impairment. We found that spns1 mutants displayed morphologically and functionally abnormal heart development  including abnormal endocardial organization  impaired cardiac valve formation and high incidence of retrograde blood flow. Single nuclear transcriptome analysis revealed endocardial specific differences in the expression of lysosome related genes and alterations of notch1 signaling in the mutant larval heart. Further  endocardial specific overexpression of spns1 and notch1 rescued features of valve formation and function as well as overall cardiac morphogenesis. Altogether  our study provides an improved description of the autophagy and lysosomal events that take place during zebrafish heart development and reveals a cell autonomous role of lysosomal processing during cardiac valve formation upstream of notch1 signaling. Overall design: Sibling and spns mutant zebrafish larval hearts were obtained at 3 dpf by manual dissection. Two replicates  each consisting of four pools50 hearts  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000.", null, "pubmed:39720516", null, "sibling  replicate 2  snRNAseq", "GSM7880035", null, "source name:heart|tissue:heart|age:3dpf|genotype:wt sibling|geo loc name:missing|collection date:missing", "sibling  replicate 2  snRNAseq", "The quality of the sequencing runs was assessed using Illumina Sequencing Analysis Viewer Illumina version 2.4.7 and all base call files were demultiplexed and converted into FASTQ files using Illumina bcl2fastq conversion software v2.20. The raw sequencing data was processed using cellranger v6.0  or demultiplexing  barcode processing  gene count processing. For alignment  we used Danio rerio Genome assembly GRCz11 v109 from Ensembl. Furthere downstream processing was done using Seurat v4 in R Assembly: GRCz11 v109 Ensembl Supplementary files format and content: barcodes  tab seprated values Supplementary files format and content: feature counts  tab seprated values Supplementary files format and content: matrix  matrix", "heart", null, "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and 3\u2019 gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "tissue:heart|age:3dpf|genotype:wt sibling", "GSM7880035", "GSM7880035: sibling  replicate 2  snRNAseq; Danio rerio; RNA Seq", "GSM7880035 r1", "GSM7880035", "1", "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and three prime gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP469857", null, "loader:fastq load.py", "sib_2_S1_L001_R1_001.fastq.gz sib_2_S1_L001_R2_001.fastq.gz", "fastq fastq", 29585942468.0, 250728326.0, "GSM7880035 r1", "0:29 1:89", "A:8869085825;C:6519678188;G:6681924988;T:7515095066;N:158401", 29, 89, null, null, 8869085825, 6519678188, 6681924988, 7515095066, 158401, "SRX22339478", "SRS19389127", "SRA1744308", "University of Bern", "University of Bern", 2, 0.03708, 0.89742, 0.02638, 0.33817, 0.98766, 0.87265, 0.50529, 0.84547, 29, 89, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "3prime", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Switzerland", "2023-11-02", "Larval", "Larval", "Heart", "Cardiovascular System"], [28772, "SRR26639099", "SRX22339478", "SRS19389127", "SRP469857", "PRJNA1034995", "Spinster homolog 1 spns1 dependent endocardial autophagy lysosomal pathway drives valve morphogenesis through the control of Notch1 signaling.", "GSE246850", "Transcriptome Analysis", "Autophagy lysosomal degradation is an evolutionarily conserved process key to cellular homeostasis  differentiation  and stress survival  which is particularly important to the pathophysiology of the cardiovascular system. What is more  both experimental and clinical observations indicate that autophagy lysosomal degradation affects correct cardiac morphogenesis  and in particular valve development. However  it is still unclear which cells upregulate autophagy lysosomal degradation and for which specific cellular processes it is required.  Here  we introduce novel zebrafish transgenic models to visualize autophagosomes and lysosomes in vivo and to follow their temporal and cellular localization in the larval heart. This allowed us to determine the kinetics of autophagosome and lysosome vesicle formation and to observe  significant accumulation of lysosomal vesicles during the development of the atrioventricular and bulboventricular valves. We then addressed the functional role of lysosomal degradation in cardiovascular development using a spns1 mutant as a zebrafish model of lysosomal impairment. We found that spns1 mutants displayed morphologically and functionally abnormal heart development  including abnormal endocardial organization  impaired cardiac valve formation and high incidence of retrograde blood flow. Single nuclear transcriptome analysis revealed endocardial specific differences in the expression of lysosome related genes and alterations of notch1 signaling in the mutant larval heart. Further  endocardial specific overexpression of spns1 and notch1 rescued features of valve formation and function as well as overall cardiac morphogenesis. Altogether  our study provides an improved description of the autophagy and lysosomal events that take place during zebrafish heart development and reveals a cell autonomous role of lysosomal processing during cardiac valve formation upstream of notch1 signaling. Overall design: Sibling and spns mutant zebrafish larval hearts were obtained at 3 dpf by manual dissection. Two replicates  each consisting of four pools50 hearts  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000.", null, "pubmed:39720516", null, "sibling  replicate 2  snRNAseq", "GSM7880035", null, "source name:heart|tissue:heart|age:3dpf|genotype:wt sibling|geo loc name:missing|collection date:missing", "sibling  replicate 2  snRNAseq", "The quality of the sequencing runs was assessed using Illumina Sequencing Analysis Viewer Illumina version 2.4.7 and all base call files were demultiplexed and converted into FASTQ files using Illumina bcl2fastq conversion software v2.20. The raw sequencing data was processed using cellranger v6.0  or demultiplexing  barcode processing  gene count processing. For alignment  we used Danio rerio Genome assembly GRCz11 v109 from Ensembl. Furthere downstream processing was done using Seurat v4 in R Assembly: GRCz11 v109 Ensembl Supplementary files format and content: barcodes  tab seprated values Supplementary files format and content: feature counts  tab seprated values Supplementary files format and content: matrix  matrix", "heart", null, "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and 3\u2019 gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "tissue:heart|age:3dpf|genotype:wt sibling", "GSM7880035", "GSM7880035: sibling  replicate 2  snRNAseq; Danio rerio; RNA Seq", "GSM7880035 r1", "GSM7880035", "1", "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and three prime gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP469857", null, "loader:fastq load.py", "sib_2_S1_L002_R1_001.fastq.gz sib_2_S1_L002_R2_001.fastq.gz", "fastq fastq", 29238445684.0, 247783438.0, "GSM7880035 r2", "0:29 1:89", "A:8764474921;C:6441070570;G:6601843083;T:7430828352;N:228758", 29, 89, null, null, 8764474921, 6441070570, 6601843083, 7430828352, 228758, "SRX22339478", "SRS19389127", "SRA1744308", "University of Bern", "University of Bern", 2, 0.03758, 0.89628, 0.02664, 0.33912, 0.98711, 0.87442, 0.4887, 0.42456, 29, 89, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "3prime", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Switzerland", "2023-11-02", "Larval", "Larval", "Heart", "Cardiovascular System"], [28773, "SRR26639100", "SRX22339477", "SRS19389126", "SRP469857", "PRJNA1034995", "Spinster homolog 1 spns1 dependent endocardial autophagy lysosomal pathway drives valve morphogenesis through the control of Notch1 signaling.", "GSE246850", "Transcriptome Analysis", "Autophagy lysosomal degradation is an evolutionarily conserved process key to cellular homeostasis  differentiation  and stress survival  which is particularly important to the pathophysiology of the cardiovascular system. What is more  both experimental and clinical observations indicate that autophagy lysosomal degradation affects correct cardiac morphogenesis  and in particular valve development. However  it is still unclear which cells upregulate autophagy lysosomal degradation and for which specific cellular processes it is required.  Here  we introduce novel zebrafish transgenic models to visualize autophagosomes and lysosomes in vivo and to follow their temporal and cellular localization in the larval heart. This allowed us to determine the kinetics of autophagosome and lysosome vesicle formation and to observe  significant accumulation of lysosomal vesicles during the development of the atrioventricular and bulboventricular valves. We then addressed the functional role of lysosomal degradation in cardiovascular development using a spns1 mutant as a zebrafish model of lysosomal impairment. We found that spns1 mutants displayed morphologically and functionally abnormal heart development  including abnormal endocardial organization  impaired cardiac valve formation and high incidence of retrograde blood flow. Single nuclear transcriptome analysis revealed endocardial specific differences in the expression of lysosome related genes and alterations of notch1 signaling in the mutant larval heart. Further  endocardial specific overexpression of spns1 and notch1 rescued features of valve formation and function as well as overall cardiac morphogenesis. Altogether  our study provides an improved description of the autophagy and lysosomal events that take place during zebrafish heart development and reveals a cell autonomous role of lysosomal processing during cardiac valve formation upstream of notch1 signaling. Overall design: Sibling and spns mutant zebrafish larval hearts were obtained at 3 dpf by manual dissection. Two replicates  each consisting of four pools50 hearts  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000.", null, "pubmed:39720516", null, "sibling  replicate 1  snRNAseq", "GSM7880034", null, "source name:heart|tissue:heart|age:3dpf|genotype:wt sibling|geo loc name:missing|collection date:missing", "sibling  replicate 1  snRNAseq", "The quality of the sequencing runs was assessed using Illumina Sequencing Analysis Viewer Illumina version 2.4.7 and all base call files were demultiplexed and converted into FASTQ files using Illumina bcl2fastq conversion software v2.20. The raw sequencing data was processed using cellranger v6.0  or demultiplexing  barcode processing  gene count processing. For alignment  we used Danio rerio Genome assembly GRCz11 v109 from Ensembl. Furthere downstream processing was done using Seurat v4 in R Assembly: GRCz11 v109 Ensembl Supplementary files format and content: barcodes  tab seprated values Supplementary files format and content: feature counts  tab seprated values Supplementary files format and content: matrix  matrix", "heart", null, "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and 3\u2019 gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "tissue:heart|age:3dpf|genotype:wt sibling", "GSM7880034", "GSM7880034: sibling  replicate 1  snRNAseq; Danio rerio; RNA Seq", "GSM7880034 r1", "GSM7880034", "1", "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and three prime gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP469857", null, "loader:fastq load.py", "sib_1_S1_L001_R1_001.fastq.gz sib_1_S1_L001_R2_001.fastq.gz", "fastq fastq", 24652163520.0, 208916640.0, "GSM7880034 r1", "0:29 1:89", "A:7206225437;C:5487875216;G:5870141423;T:6087790451;N:130993", 29, 89, null, null, 7206225437, 5487875216, 5870141423, 6087790451, 130993, "SRX22339477", "SRS19389126", "SRA1744308", "University of Bern", "University of Bern", 2, 0.04136, 0.8662, 0.02868, 0.3899, 0.98597, 0.86906, 0.42284, 0.79265, 29, 89, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "3prime", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Switzerland", "2023-11-02", "Larval", "Larval", "Heart", "Cardiovascular System"], [28774, "SRR26639101", "SRX22339477", "SRS19389126", "SRP469857", "PRJNA1034995", "Spinster homolog 1 spns1 dependent endocardial autophagy lysosomal pathway drives valve morphogenesis through the control of Notch1 signaling.", "GSE246850", "Transcriptome Analysis", "Autophagy lysosomal degradation is an evolutionarily conserved process key to cellular homeostasis  differentiation  and stress survival  which is particularly important to the pathophysiology of the cardiovascular system. What is more  both experimental and clinical observations indicate that autophagy lysosomal degradation affects correct cardiac morphogenesis  and in particular valve development. However  it is still unclear which cells upregulate autophagy lysosomal degradation and for which specific cellular processes it is required.  Here  we introduce novel zebrafish transgenic models to visualize autophagosomes and lysosomes in vivo and to follow their temporal and cellular localization in the larval heart. This allowed us to determine the kinetics of autophagosome and lysosome vesicle formation and to observe  significant accumulation of lysosomal vesicles during the development of the atrioventricular and bulboventricular valves. We then addressed the functional role of lysosomal degradation in cardiovascular development using a spns1 mutant as a zebrafish model of lysosomal impairment. We found that spns1 mutants displayed morphologically and functionally abnormal heart development  including abnormal endocardial organization  impaired cardiac valve formation and high incidence of retrograde blood flow. Single nuclear transcriptome analysis revealed endocardial specific differences in the expression of lysosome related genes and alterations of notch1 signaling in the mutant larval heart. Further  endocardial specific overexpression of spns1 and notch1 rescued features of valve formation and function as well as overall cardiac morphogenesis. Altogether  our study provides an improved description of the autophagy and lysosomal events that take place during zebrafish heart development and reveals a cell autonomous role of lysosomal processing during cardiac valve formation upstream of notch1 signaling. Overall design: Sibling and spns mutant zebrafish larval hearts were obtained at 3 dpf by manual dissection. Two replicates  each consisting of four pools50 hearts  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000.", null, "pubmed:39720516", null, "sibling  replicate 1  snRNAseq", "GSM7880034", null, "source name:heart|tissue:heart|age:3dpf|genotype:wt sibling|geo loc name:missing|collection date:missing", "sibling  replicate 1  snRNAseq", "The quality of the sequencing runs was assessed using Illumina Sequencing Analysis Viewer Illumina version 2.4.7 and all base call files were demultiplexed and converted into FASTQ files using Illumina bcl2fastq conversion software v2.20. The raw sequencing data was processed using cellranger v6.0  or demultiplexing  barcode processing  gene count processing. For alignment  we used Danio rerio Genome assembly GRCz11 v109 from Ensembl. Furthere downstream processing was done using Seurat v4 in R Assembly: GRCz11 v109 Ensembl Supplementary files format and content: barcodes  tab seprated values Supplementary files format and content: feature counts  tab seprated values Supplementary files format and content: matrix  matrix", "heart", null, "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and 3\u2019 gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "tissue:heart|age:3dpf|genotype:wt sibling", "GSM7880034", "GSM7880034: sibling  replicate 1  snRNAseq; Danio rerio; RNA Seq", "GSM7880034 r1", "GSM7880034", "1", "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and three prime gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP469857", null, "loader:fastq load.py", "sib_1_S1_L002_R1_001.fastq.gz sib_1_S1_L002_R2_001.fastq.gz", "fastq fastq", 24333156656.0, 206213192.0, "GSM7880034 r2", "0:29 1:89", "A:7112369699;C:5414867956;G:5792728480;T:6013000607;N:189914", 29, 89, null, null, 7112369699, 5414867956, 5792728480, 6013000607, 189914, "SRX22339477", "SRS19389126", "SRA1744308", "University of Bern", "University of Bern", 2, 0.04141, 0.86578, 0.02866, 0.39157, 0.98614, 0.8704, 0.42701, 0.78792, 29, 89, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "3prime", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Switzerland", "2023-11-02", "Larval", "Larval", "Heart", "Cardiovascular System"], [28775, "SRR26639102", "SRX22339476", "SRS19389125", "SRP469857", "PRJNA1034995", "Spinster homolog 1 spns1 dependent endocardial autophagy lysosomal pathway drives valve morphogenesis through the control of Notch1 signaling.", "GSE246850", "Transcriptome Analysis", "Autophagy lysosomal degradation is an evolutionarily conserved process key to cellular homeostasis  differentiation  and stress survival  which is particularly important to the pathophysiology of the cardiovascular system. What is more  both experimental and clinical observations indicate that autophagy lysosomal degradation affects correct cardiac morphogenesis  and in particular valve development. However  it is still unclear which cells upregulate autophagy lysosomal degradation and for which specific cellular processes it is required.  Here  we introduce novel zebrafish transgenic models to visualize autophagosomes and lysosomes in vivo and to follow their temporal and cellular localization in the larval heart. This allowed us to determine the kinetics of autophagosome and lysosome vesicle formation and to observe  significant accumulation of lysosomal vesicles during the development of the atrioventricular and bulboventricular valves. We then addressed the functional role of lysosomal degradation in cardiovascular development using a spns1 mutant as a zebrafish model of lysosomal impairment. We found that spns1 mutants displayed morphologically and functionally abnormal heart development  including abnormal endocardial organization  impaired cardiac valve formation and high incidence of retrograde blood flow. Single nuclear transcriptome analysis revealed endocardial specific differences in the expression of lysosome related genes and alterations of notch1 signaling in the mutant larval heart. Further  endocardial specific overexpression of spns1 and notch1 rescued features of valve formation and function as well as overall cardiac morphogenesis. Altogether  our study provides an improved description of the autophagy and lysosomal events that take place during zebrafish heart development and reveals a cell autonomous role of lysosomal processing during cardiac valve formation upstream of notch1 signaling. Overall design: Sibling and spns mutant zebrafish larval hearts were obtained at 3 dpf by manual dissection. Two replicates  each consisting of four pools50 hearts  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000.", null, "pubmed:39720516", null, "spns mutant  replicate 2  snRNAseq", "GSM7880033", null, "source name:heart|tissue:heart|age:3dpf|genotype:spns mutant|geo loc name:missing|collection date:missing", "spns mutant  replicate 2  snRNAseq", "The quality of the sequencing runs was assessed using Illumina Sequencing Analysis Viewer Illumina version 2.4.7 and all base call files were demultiplexed and converted into FASTQ files using Illumina bcl2fastq conversion software v2.20. The raw sequencing data was processed using cellranger v6.0  or demultiplexing  barcode processing  gene count processing. For alignment  we used Danio rerio Genome assembly GRCz11 v109 from Ensembl. Furthere downstream processing was done using Seurat v4 in R Assembly: GRCz11 v109 Ensembl Supplementary files format and content: barcodes  tab seprated values Supplementary files format and content: feature counts  tab seprated values Supplementary files format and content: matrix  matrix", "heart", null, "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and 3\u2019 gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "tissue:heart|age:3dpf|genotype:spns mutant", "GSM7880033", "GSM7880033: spns mutant  replicate 2  snRNAseq; Danio rerio; RNA Seq", "GSM7880033 r1", "GSM7880033", "1", "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and three prime gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP469857", null, "loader:fastq load.py", "mut_2_S1_L001_R1_001.fastq.gz mut_2_S1_L001_R2_001.fastq.gz", "fastq fastq", 33067082062.0, 280229509.0, "GSM7880033 r1", "0:29 1:89", "A:9837791085;C:7302189072;G:7479072379;T:8447851569;N:177957", 29, 89, null, null, 9837791085, 7302189072, 7479072379, 8447851569, 177957, "SRX22339476", "SRS19389125", "SRA1744308", "University of Bern", "University of Bern", 2, 0.03975, 0.89392, 0.02827, 0.35098, 0.98693, 0.87572, 0.42665, 0.8308, 29, 89, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "3prime", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Switzerland", "2023-11-02", "Larval", "Larval", "Heart", "Cardiovascular System"], [28776, "SRR26639103", "SRX22339476", "SRS19389125", "SRP469857", "PRJNA1034995", "Spinster homolog 1 spns1 dependent endocardial autophagy lysosomal pathway drives valve morphogenesis through the control of Notch1 signaling.", "GSE246850", "Transcriptome Analysis", "Autophagy lysosomal degradation is an evolutionarily conserved process key to cellular homeostasis  differentiation  and stress survival  which is particularly important to the pathophysiology of the cardiovascular system. What is more  both experimental and clinical observations indicate that autophagy lysosomal degradation affects correct cardiac morphogenesis  and in particular valve development. However  it is still unclear which cells upregulate autophagy lysosomal degradation and for which specific cellular processes it is required.  Here  we introduce novel zebrafish transgenic models to visualize autophagosomes and lysosomes in vivo and to follow their temporal and cellular localization in the larval heart. This allowed us to determine the kinetics of autophagosome and lysosome vesicle formation and to observe  significant accumulation of lysosomal vesicles during the development of the atrioventricular and bulboventricular valves. We then addressed the functional role of lysosomal degradation in cardiovascular development using a spns1 mutant as a zebrafish model of lysosomal impairment. We found that spns1 mutants displayed morphologically and functionally abnormal heart development  including abnormal endocardial organization  impaired cardiac valve formation and high incidence of retrograde blood flow. Single nuclear transcriptome analysis revealed endocardial specific differences in the expression of lysosome related genes and alterations of notch1 signaling in the mutant larval heart. Further  endocardial specific overexpression of spns1 and notch1 rescued features of valve formation and function as well as overall cardiac morphogenesis. Altogether  our study provides an improved description of the autophagy and lysosomal events that take place during zebrafish heart development and reveals a cell autonomous role of lysosomal processing during cardiac valve formation upstream of notch1 signaling. Overall design: Sibling and spns mutant zebrafish larval hearts were obtained at 3 dpf by manual dissection. Two replicates  each consisting of four pools50 hearts  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000.", null, "pubmed:39720516", null, "spns mutant  replicate 2  snRNAseq", "GSM7880033", null, "source name:heart|tissue:heart|age:3dpf|genotype:spns mutant|geo loc name:missing|collection date:missing", "spns mutant  replicate 2  snRNAseq", "The quality of the sequencing runs was assessed using Illumina Sequencing Analysis Viewer Illumina version 2.4.7 and all base call files were demultiplexed and converted into FASTQ files using Illumina bcl2fastq conversion software v2.20. The raw sequencing data was processed using cellranger v6.0  or demultiplexing  barcode processing  gene count processing. For alignment  we used Danio rerio Genome assembly GRCz11 v109 from Ensembl. Furthere downstream processing was done using Seurat v4 in R Assembly: GRCz11 v109 Ensembl Supplementary files format and content: barcodes  tab seprated values Supplementary files format and content: feature counts  tab seprated values Supplementary files format and content: matrix  matrix", "heart", null, "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and 3\u2019 gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "tissue:heart|age:3dpf|genotype:spns mutant", "GSM7880033", "GSM7880033: spns mutant  replicate 2  snRNAseq; Danio rerio; RNA Seq", "GSM7880033 r1", "GSM7880033", "1", "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and three prime gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP469857", null, "loader:fastq load.py", "mut_2_S1_L002_R1_001.fastq.gz mut_2_S1_L002_R2_001.fastq.gz", "fastq fastq", 32794778418.0, 277921851.0, "GSM7880033 r2", "0:29 1:89", "A:9757463504;C:7238976466;G:7415128557;T:8382951671;N:258220", 29, 89, null, null, 9757463504, 7238976466, 7415128557, 8382951671, 258220, "SRX22339476", "SRS19389125", "SRA1744308", "University of Bern", "University of Bern", 2, 0.04055, 0.89543, 0.02892, 0.35129, 0.98654, 0.87655, 0.45394, 0.85056, 29, 89, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "3prime", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Switzerland", "2023-11-02", "Larval", "Larval", "Heart", "Cardiovascular System"], [28777, "SRR26639104", "SRX22339475", "SRS19389124", "SRP469857", "PRJNA1034995", "Spinster homolog 1 spns1 dependent endocardial autophagy lysosomal pathway drives valve morphogenesis through the control of Notch1 signaling.", "GSE246850", "Transcriptome Analysis", "Autophagy lysosomal degradation is an evolutionarily conserved process key to cellular homeostasis  differentiation  and stress survival  which is particularly important to the pathophysiology of the cardiovascular system. What is more  both experimental and clinical observations indicate that autophagy lysosomal degradation affects correct cardiac morphogenesis  and in particular valve development. However  it is still unclear which cells upregulate autophagy lysosomal degradation and for which specific cellular processes it is required.  Here  we introduce novel zebrafish transgenic models to visualize autophagosomes and lysosomes in vivo and to follow their temporal and cellular localization in the larval heart. This allowed us to determine the kinetics of autophagosome and lysosome vesicle formation and to observe  significant accumulation of lysosomal vesicles during the development of the atrioventricular and bulboventricular valves. We then addressed the functional role of lysosomal degradation in cardiovascular development using a spns1 mutant as a zebrafish model of lysosomal impairment. We found that spns1 mutants displayed morphologically and functionally abnormal heart development  including abnormal endocardial organization  impaired cardiac valve formation and high incidence of retrograde blood flow. Single nuclear transcriptome analysis revealed endocardial specific differences in the expression of lysosome related genes and alterations of notch1 signaling in the mutant larval heart. Further  endocardial specific overexpression of spns1 and notch1 rescued features of valve formation and function as well as overall cardiac morphogenesis. Altogether  our study provides an improved description of the autophagy and lysosomal events that take place during zebrafish heart development and reveals a cell autonomous role of lysosomal processing during cardiac valve formation upstream of notch1 signaling. Overall design: Sibling and spns mutant zebrafish larval hearts were obtained at 3 dpf by manual dissection. Two replicates  each consisting of four pools50 hearts  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000.", null, "pubmed:39720516", null, "spns mutant  replicate 1  snRNAseq", "GSM7880032", null, "source name:heart|tissue:heart|age:3dpf|genotype:spns mutant|geo loc name:missing|collection date:missing", "spns mutant  replicate 1  snRNAseq", "The quality of the sequencing runs was assessed using Illumina Sequencing Analysis Viewer Illumina version 2.4.7 and all base call files were demultiplexed and converted into FASTQ files using Illumina bcl2fastq conversion software v2.20. The raw sequencing data was processed using cellranger v6.0  or demultiplexing  barcode processing  gene count processing. For alignment  we used Danio rerio Genome assembly GRCz11 v109 from Ensembl. Furthere downstream processing was done using Seurat v4 in R Assembly: GRCz11 v109 Ensembl Supplementary files format and content: barcodes  tab seprated values Supplementary files format and content: feature counts  tab seprated values Supplementary files format and content: matrix  matrix", "heart", null, "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and 3\u2019 gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "tissue:heart|age:3dpf|genotype:spns mutant", "GSM7880032", "GSM7880032: spns mutant  replicate 1  snRNAseq; Danio rerio; RNA Seq", "GSM7880032 r1", "GSM7880032", "1", "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and three prime gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP469857", null, "loader:fastq load.py", "mut_1_S1_L001_R1_001.fastq.gz mut_1_S1_L001_R2_001.fastq.gz", "fastq fastq", 30027997254.0, 254474553.0, "GSM7880032 r1", "0:29 1:89", "A:9128230353;C:6473885422;G:6895366272;T:7530354635;N:160572", 29, 89, null, null, 9128230353, 6473885422, 6895366272, 7530354635, 160572, "SRX22339475", "SRS19389124", "SRA1744308", "University of Bern", "University of Bern", 2, 0.03908, 0.86231, 0.0274, 0.38263, 0.98701, 0.87113, 0.48114, 0.78783, 29, 89, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "3prime", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Switzerland", "2023-11-02", "Larval", "Larval", "Heart", "Cardiovascular System"], [28778, "SRR26639105", "SRX22339475", "SRS19389124", "SRP469857", "PRJNA1034995", "Spinster homolog 1 spns1 dependent endocardial autophagy lysosomal pathway drives valve morphogenesis through the control of Notch1 signaling.", "GSE246850", "Transcriptome Analysis", "Autophagy lysosomal degradation is an evolutionarily conserved process key to cellular homeostasis  differentiation  and stress survival  which is particularly important to the pathophysiology of the cardiovascular system. What is more  both experimental and clinical observations indicate that autophagy lysosomal degradation affects correct cardiac morphogenesis  and in particular valve development. However  it is still unclear which cells upregulate autophagy lysosomal degradation and for which specific cellular processes it is required.  Here  we introduce novel zebrafish transgenic models to visualize autophagosomes and lysosomes in vivo and to follow their temporal and cellular localization in the larval heart. This allowed us to determine the kinetics of autophagosome and lysosome vesicle formation and to observe  significant accumulation of lysosomal vesicles during the development of the atrioventricular and bulboventricular valves. We then addressed the functional role of lysosomal degradation in cardiovascular development using a spns1 mutant as a zebrafish model of lysosomal impairment. We found that spns1 mutants displayed morphologically and functionally abnormal heart development  including abnormal endocardial organization  impaired cardiac valve formation and high incidence of retrograde blood flow. Single nuclear transcriptome analysis revealed endocardial specific differences in the expression of lysosome related genes and alterations of notch1 signaling in the mutant larval heart. Further  endocardial specific overexpression of spns1 and notch1 rescued features of valve formation and function as well as overall cardiac morphogenesis. Altogether  our study provides an improved description of the autophagy and lysosomal events that take place during zebrafish heart development and reveals a cell autonomous role of lysosomal processing during cardiac valve formation upstream of notch1 signaling. Overall design: Sibling and spns mutant zebrafish larval hearts were obtained at 3 dpf by manual dissection. Two replicates  each consisting of four pools50 hearts  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000.", null, "pubmed:39720516", null, "spns mutant  replicate 1  snRNAseq", "GSM7880032", null, "source name:heart|tissue:heart|age:3dpf|genotype:spns mutant|geo loc name:missing|collection date:missing", "spns mutant  replicate 1  snRNAseq", "The quality of the sequencing runs was assessed using Illumina Sequencing Analysis Viewer Illumina version 2.4.7 and all base call files were demultiplexed and converted into FASTQ files using Illumina bcl2fastq conversion software v2.20. The raw sequencing data was processed using cellranger v6.0  or demultiplexing  barcode processing  gene count processing. For alignment  we used Danio rerio Genome assembly GRCz11 v109 from Ensembl. Furthere downstream processing was done using Seurat v4 in R Assembly: GRCz11 v109 Ensembl Supplementary files format and content: barcodes  tab seprated values Supplementary files format and content: feature counts  tab seprated values Supplementary files format and content: matrix  matrix", "heart", null, "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and 3\u2019 gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "tissue:heart|age:3dpf|genotype:spns mutant", "GSM7880032", "GSM7880032: spns mutant  replicate 1  snRNAseq; Danio rerio; RNA Seq", "GSM7880032 r1", "GSM7880032", "1", "Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described\u200b65\u200b. Pools of 50 hearts were collected within one hour in ice cold Leibovitz's L 15 Medium Thermo Fisher Scientific  supplemented with 10% fetal bovine serum Sigma  Aldrich  F7524  centrifuged for 4 minutes at 300 g  snap frozen and preserved in liquid nitrogen. Two replicates  each consisting of four pools  were obtained for each experimental group sibling  mutant. Single nuclei suspensions containing 3800 4000 nuclei/ \u00b5L were prepared using the Chromium Nuclei Isolation Kit with RNase Inhibitor 10 x Genomics  PN 1000494 following the samples Prep User Guide 10 x Genomics  CG000505  Rev A. The Transposition  GEM generation & barcoding  reverse transcription  and preparation of the gene expression and ATAC libraries was performed according to the 4Chromium Next GEM Single Cell Multiome ATAC + Gene Expression User Guide 10x Genomics  CG000338 Rev F with all stipulated 10x Genomics reagents. Nuclei suspensions were incubated in a Transposition Mix that includes a Transposase. At the end of the transposition step  GEM generation and barcoding was immediately performed and then a quenching reagent was added to each sample to stop the reaction. The samples were then stored at  80\u00b0 C. When samples were retrieved from storage  they were cleaned up as stipulated in step 3.0 of the user guide. Therepost  a pre amplification step was performed with 6 PCR cycles  followed by cDNA amplification and three prime gene expression library workflow using 16 PCR cycles. Generated cDNA and both types of libraries were evaluated for quantity and quality using a Thermo Fisher Scientific Qubit 4.0 fluorometer with the Qubit dsDNA HS Assay Kit Thermo Fisher Scientific  Q32851 and an Advanced Analytical Fragment Analyzer System using a Fragment Analyzer NGS Fragment Kit Agilent  DNF 473  respectively. The cDNA libraries were pooled and sequenced with a loading concentration of 300 pM  asymmetric paired end and dual indexed  using an Illumina NovaSeq 6000 S1 Reagent Kit v1.5 100 cycles Illumina  20028319 on an Illumina NovaSeq 6000. The read set up was as follows: read 1: 29 cycles  i7 index: 10 cycles  i5: 10 cycles and read 2: 89 91 cycles. snRNA seq", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP469857", null, "loader:fastq load.py", "mut_1_S1_L002_R1_001.fastq.gz mut_1_S1_L002_R2_001.fastq.gz", "fastq fastq", 29506651188.0, 250056366.0, "GSM7880032 r2", "0:29 1:89", "A:8967217701;C:6359649244;G:6775979696;T:7403576105;N:228442", 29, 89, null, null, 8967217701, 6359649244, 6775979696, 7403576105, 228442, "SRX22339475", "SRS19389124", "SRA1744308", "University of Bern", "University of Bern", 2, 0.03885, 0.86188, 0.02749, 0.38666, 0.98644, 0.86975, 0.46306, 0.79451, 29, 89, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "3prime", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Switzerland", "2023-11-02", "Larval", "Larval", "Heart", "Cardiovascular System"], [29201, "SRR27319715", "SRX22996941", "SRS19961590", "SRP479504", "PRJNA1055557", "Border zone cardiomyocytes and macrophages contribute to remodeling of the extracellular matrix to promote cardiomyocyte invasion during zebrafish cardiac regeneration", "GSE251856", "Other", "Despite numerous advances in our understanding of zebrafish cardiac regeneration  an aspect that remains less studied is how newly proliferated cardiomyocytes invade  and eventually replace  the collagen containing fibrotic tissue following injury.  Here  we provide an in depth analysis of the process of cardiomyocyte invasion and migration using live imaging and histological approaches.  We observed a close interaction between protruding cardiomyocytes and macrophages at the wound border zone  and irf8 mutant zebrafish  which largely lack macrophages  exhibited defects in extracellular matrix ECM remodeling and cardiomyocyte protrusion into the injured area.  Using a resident macrophage ablation model  we show that defects in ECM remodeling at the border zone and subsequent cardiomyocyte protrusion can be partly attributed to a population of resident macrophages.  Single cell RNA sequencing analysis of cells at the wound border revealed a population of cardiomyocytes and macrophages with fibroblast like gene expression signatures  including the expression of genes encoding ECM structural proteins and ECM remodeling proteins.  The expression of mmp14b  which encodes a membrane anchored matrix metalloproteinase  was restricted to cells in the border zone and genetic deletion of mmp14b led to a decrease in 1 collagen degradation at the border zone  2 macrophage recruitment to the border zone  and 3 subsequent cardiomyocyte invasion.  Furthermore  cardiomyocyte specific overexpression of mmp14b was sufficient to enhance cardiomyocyte invasion both into the injured area and along the apical surface of the wound.  Altogether  our data shed important insights into the process of cardiomyocyte invasion of the collagen containing injured tissue during cardiac regeneration.  They further suggest that cardiomyocytes and resident macrophages contribute to ECM remodeling at the border zone to promote cardiomyocyte replenishment of the fibrotic injured tissue. Overall design: The border zone of regenerating wild type zebrafish hearts at 7 dpci was microdissected and subjected to scRNA seq", null, "pubmed:39962064;pubmed:40268967", null, "scRNA seq of wild type border z1 cells of regenerating hearts at 7 dpci", "GSM7989198", null, "source name:Heart|tissue:Heart|genotype:Wild type|treatment:Hearts were cryoinjured and border z1 cells were microdissected at 7 dpci and pooled for scRNA seq|geo loc name:missing|collection date:missing", "scRNA seq of wild type border z1 cells of regenerating hearts at 7 dpci", "Reads were aligned against the zebrafish genome DanRer11 and counted by StarSolo. Preprocessed counts were further analysed using Scanpy. Basic cell quality control was conducted by taking the number of detected genes and mitochondrial content into consideration. We removed 23 cells in total that did not express more than 300 genes or had a mitochondrial content greater than 40%. Furthermore  we filtered 9874 genes if they were detected in less than 30 cells <0.01%. Raw counts per cell were normalised to the median count over all cells and transformed into log space to stabilise variance. We initially reduced dimensionality of the dataset using PCA  retaining 50 principal components. Subsequent steps  like low dimensional UMAP embedding and cell clustering via community detection  were based on the initial PCA. Final data visualization was done by scanpy and cellxgene packages. Assembly: danRer11 Supplementary files format and content: starsolo outputs", "Heart", "Zebrafish hearts were cryoinjured and extracted at 7 dpci.", "Border zone cells from 8 hearts were pooled and tissue dissociation was performed using the Pierce Primary Cardiomyocyte Isolation kit according to manufacturer's instructions.  Cells were resuspended in DMEM with 10% FBS and 1x glutamate. The cell suspensions were depleted for dead cells using LeviCell 1.0 device Levitas Bio counted with MOX Z cell counter and diluted according to manufacturer\u2019s protocol to obtain 10.000 single cell data points per sample. Each sample was run separately on a lane in Chromium controller with Chromium Next GEM Single Cell 3\u02b9 Reagent Kits v3.1 10xGenomics. Single cell RNAseq library preparation was done using standard protocol.", null, "tissue:Heart|genotype:Wild type|treatment:Hearts were cryoinjured and border z1 cells were microdissected at 7 dpci and pooled for scRNA seq", "GSM7989198", "GSM7989198: scRNA seq of wild type border z1 cells of regenerating hearts at 7 dpci; Danio rerio; RNA Seq", "GSM7989198 r1", "GSM7989198", "1", "Border zone cells from 8 hearts were pooled and tissue dissociation was performed using the Pierce Primary Cardiomyocyte Isolation kit according to manufacturer's instructions.  Cells were resuspended in DMEM with 10% FBS and 1x glutamate. The cell suspensions were depleted for dead cells using LeviCell 1.0 device Levitas Bio counted with MOX Z cell counter and diluted according to manufacturer's protocol to obtain 10.000 single cell data points per sample. Each sample was run separately on a lane in Chromium controller with Chromium Next GEM Single Cell 3\u02b9 Reagent Kits v3.1 10xGenomics. Single cell RNAseq library preparation was done using standard protocol.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 2000", null, "SRP479504", null, null, "Arica_10x_Zebrafish_Borderzone_Lib_R2.fastq.gz Arica_10x_Zebrafish_Borderzone_Lib_R1.fastq.gz", "fastq fastq", 35579193737.0, 447572139.0, "GSM7989198 r1", "0:28 1:51.49", "A:9662436792;C:7884457111;G:8055970010;T:9787114480;N:189215344", 28, 51, null, null, 9662436792, 7884457111, 8055970010, 9787114480, 189215344, "SRX22996941", "SRS19961590", "SRA1774131", "MPI for heart and lung research", "MPI for heart and lung research", 2, 0.00237, 0.94011, 0.00086, 0.09945, 0.99571, 0.81907, 0.32746, 0.60892, 28, 51, "T", "B", "sc-like readlen", "illumina", "nextseq_v2", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Germany", "2023-12-21", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [30738, "SRR28346485", "SRX23952998", "SRS20753493", "SRP495277", "PRJNA1088100", "Single cell transcriptional profiles of the atrioventricular canal of 1 mpf zebrafish treated with DMSO or IWR 1 endo", "GSE261604", "Transcriptome Analysis", "To identify the crosstalk between Wnt/\u00df catenin signaling activated cardiomyocytes \u00df cat ON CMs and coronary endothelial cells coECs  we performed single cell RNA sequencing on all the cells of the atrioventricular canal AVC at 1 month  which contains newly formed coronary vessels. To identify the extracellular ligands regulated by Wnt/\u00df catenin signaling  we also collected AVC from fish treated with DMSO or IWR1 endo  an inhibitor of Wnt/\u00df catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between \u00df cat ON CMs and coECs. Overall design: We treated 1 mpf Tgcryaa:EGFP  myl7:GAL4db TCF?C;5xUAS:NTR mCherry fish with DMSO or 10 \u00b5M IWR1 endo for 48 hours. Hearts were resected from the fish treated with MTZ or DMSO  respectively. We isolated AVCs from hearts and dissociated them into single cells. Barcoded single cell cDNA libraries were prepared using the Chromium Next GEM single cell three primereagent kits v3.1 and sequenced using Illumina NextSeq 500.", "parent bioproject:PRJNA926354", "pubmed:39395410", null, "AVC  IWR1  scRNAseq", "GSM8147318", null, "source name:Heart|tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:IWR1|geo loc name:missing|collection date:missing", "AVC  IWR1  scRNAseq", "The 10x Genomics Cell Ranger pipeline v6.1.1 was used to perform sample demultiplexing  alignment to the reference genome Danio rerio GRCz11  barcode/UMI processing  and gene counting for each cell. Assembly: GRCz11 Supplementary files format and content: tsv files contain lists of genes and barcodes for each sample  mtx files count gene UMI couns for each sample", "Heart", "Fish were treated with DMSO or 10 \u03bcM MTZ dissolved in fish water for 48 h in the dark.", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell 3\u2019reagent kits v3.1 10X Genomics  1000128  according to the manufacturer\u2019s protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:IWR1", "GSM8147318", "GSM8147318: AVC  IWR1  scRNAseq; Danio rerio; RNA Seq", "GSM8147318 r1", "GSM8147318", "1", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell three primereagent kits v3.1 10X Genomics  1000128  according to the manufacturer's protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP495277", null, "loader:fastq load.py", "AVC_IWR1_S1_L001_I1_001.fastq.gz AVC_IWR1_S1_L001_I2_001.fastq.gz AVC_IWR1_S1_L001_R1_001.fastq.gz AVC_IWR1_S1_L001_R2_001.fastq.gz", "fastq fastq fastq fastq", 8596842480.0, 62295960.0, "GSM8147318 r1", "0:10 1:10 2:28 3:90", "A:1570400090;C:1308581548;G:1326249813;T:1399966642;N:1438307", 10, 10, 28, 90, 1570400090, 1308581548, 1326249813, 1399966642, 1438307, "SRX23952998", "SRS20753493", "SRA1824323", "Department of Pharmacology, Yamagata University", "Department of Pharmacology, Yamagata University", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "nextseq", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Japan", "2024-03-14", "Juvenile", "Juvenile", "Heart", "Cardiovascular System"], [30739, "SRR28346486", "SRX23952998", "SRS20753493", "SRP495277", "PRJNA1088100", "Single cell transcriptional profiles of the atrioventricular canal of 1 mpf zebrafish treated with DMSO or IWR 1 endo", "GSE261604", "Transcriptome Analysis", "To identify the crosstalk between Wnt/\u00df catenin signaling activated cardiomyocytes \u00df cat ON CMs and coronary endothelial cells coECs  we performed single cell RNA sequencing on all the cells of the atrioventricular canal AVC at 1 month  which contains newly formed coronary vessels. To identify the extracellular ligands regulated by Wnt/\u00df catenin signaling  we also collected AVC from fish treated with DMSO or IWR1 endo  an inhibitor of Wnt/\u00df catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between \u00df cat ON CMs and coECs. Overall design: We treated 1 mpf Tgcryaa:EGFP  myl7:GAL4db TCF?C;5xUAS:NTR mCherry fish with DMSO or 10 \u00b5M IWR1 endo for 48 hours. Hearts were resected from the fish treated with MTZ or DMSO  respectively. We isolated AVCs from hearts and dissociated them into single cells. Barcoded single cell cDNA libraries were prepared using the Chromium Next GEM single cell three primereagent kits v3.1 and sequenced using Illumina NextSeq 500.", "parent bioproject:PRJNA926354", "pubmed:39395410", null, "AVC  IWR1  scRNAseq", "GSM8147318", null, "source name:Heart|tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:IWR1|geo loc name:missing|collection date:missing", "AVC  IWR1  scRNAseq", "The 10x Genomics Cell Ranger pipeline v6.1.1 was used to perform sample demultiplexing  alignment to the reference genome Danio rerio GRCz11  barcode/UMI processing  and gene counting for each cell. Assembly: GRCz11 Supplementary files format and content: tsv files contain lists of genes and barcodes for each sample  mtx files count gene UMI couns for each sample", "Heart", "Fish were treated with DMSO or 10 \u03bcM MTZ dissolved in fish water for 48 h in the dark.", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell 3\u2019reagent kits v3.1 10X Genomics  1000128  according to the manufacturer\u2019s protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:IWR1", "GSM8147318", "GSM8147318: AVC  IWR1  scRNAseq; Danio rerio; RNA Seq", "GSM8147318 r1", "GSM8147318", "1", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell three primereagent kits v3.1 10X Genomics  1000128  according to the manufacturer's protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP495277", null, "loader:fastq load.py", "AVC_IWR1_S1_L002_I1_001.fastq.gz AVC_IWR1_S1_L002_I2_001.fastq.gz AVC_IWR1_S1_L002_R1_001.fastq.gz AVC_IWR1_S1_L002_R2_001.fastq.gz", "fastq fastq fastq fastq", 8505185502.0, 61631779.0, "GSM8147318 r2", "0:10 1:10 2:28 3:90", "A:1553616390;C:1294687778;G:1312612882;T:1384504011;N:1439049", 10, 10, 28, 90, 1553616390, 1294687778, 1312612882, 1384504011, 1439049, "SRX23952998", "SRS20753493", "SRA1824323", "Department of Pharmacology, Yamagata University", "Department of Pharmacology, Yamagata University", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "nextseq", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Japan", "2024-03-14", "Juvenile", "Juvenile", "Heart", "Cardiovascular System"], [30740, "SRR28346487", "SRX23952998", "SRS20753493", "SRP495277", "PRJNA1088100", "Single cell transcriptional profiles of the atrioventricular canal of 1 mpf zebrafish treated with DMSO or IWR 1 endo", "GSE261604", "Transcriptome Analysis", "To identify the crosstalk between Wnt/\u00df catenin signaling activated cardiomyocytes \u00df cat ON CMs and coronary endothelial cells coECs  we performed single cell RNA sequencing on all the cells of the atrioventricular canal AVC at 1 month  which contains newly formed coronary vessels. To identify the extracellular ligands regulated by Wnt/\u00df catenin signaling  we also collected AVC from fish treated with DMSO or IWR1 endo  an inhibitor of Wnt/\u00df catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between \u00df cat ON CMs and coECs. Overall design: We treated 1 mpf Tgcryaa:EGFP  myl7:GAL4db TCF?C;5xUAS:NTR mCherry fish with DMSO or 10 \u00b5M IWR1 endo for 48 hours. Hearts were resected from the fish treated with MTZ or DMSO  respectively. We isolated AVCs from hearts and dissociated them into single cells. Barcoded single cell cDNA libraries were prepared using the Chromium Next GEM single cell three primereagent kits v3.1 and sequenced using Illumina NextSeq 500.", "parent bioproject:PRJNA926354", "pubmed:39395410", null, "AVC  IWR1  scRNAseq", "GSM8147318", null, "source name:Heart|tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:IWR1|geo loc name:missing|collection date:missing", "AVC  IWR1  scRNAseq", "The 10x Genomics Cell Ranger pipeline v6.1.1 was used to perform sample demultiplexing  alignment to the reference genome Danio rerio GRCz11  barcode/UMI processing  and gene counting for each cell. Assembly: GRCz11 Supplementary files format and content: tsv files contain lists of genes and barcodes for each sample  mtx files count gene UMI couns for each sample", "Heart", "Fish were treated with DMSO or 10 \u03bcM MTZ dissolved in fish water for 48 h in the dark.", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell 3\u2019reagent kits v3.1 10X Genomics  1000128  according to the manufacturer\u2019s protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:IWR1", "GSM8147318", "GSM8147318: AVC  IWR1  scRNAseq; Danio rerio; RNA Seq", "GSM8147318 r1", "GSM8147318", "1", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell three primereagent kits v3.1 10X Genomics  1000128  according to the manufacturer's protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP495277", null, "loader:fastq load.py", "AVC_IWR1_S1_L003_I1_001.fastq.gz AVC_IWR1_S1_L003_I2_001.fastq.gz AVC_IWR1_S1_L003_R1_001.fastq.gz AVC_IWR1_S1_L003_R2_001.fastq.gz", "fastq fastq fastq fastq", 8699205498.0, 63037721.0, "GSM8147318 r3", "0:10 1:10 2:28 3:90", "A:1588465122;C:1324147204;G:1343996634;T:1415623074;N:1162856", 10, 10, 28, 90, 1588465122, 1324147204, 1343996634, 1415623074, 1162856, "SRX23952998", "SRS20753493", "SRA1824323", "Department of Pharmacology, Yamagata University", "Department of Pharmacology, Yamagata University", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "nextseq", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Japan", "2024-03-14", "Juvenile", "Juvenile", "Heart", "Cardiovascular System"], [30741, "SRR28346488", "SRX23952998", "SRS20753493", "SRP495277", "PRJNA1088100", "Single cell transcriptional profiles of the atrioventricular canal of 1 mpf zebrafish treated with DMSO or IWR 1 endo", "GSE261604", "Transcriptome Analysis", "To identify the crosstalk between Wnt/\u00df catenin signaling activated cardiomyocytes \u00df cat ON CMs and coronary endothelial cells coECs  we performed single cell RNA sequencing on all the cells of the atrioventricular canal AVC at 1 month  which contains newly formed coronary vessels. To identify the extracellular ligands regulated by Wnt/\u00df catenin signaling  we also collected AVC from fish treated with DMSO or IWR1 endo  an inhibitor of Wnt/\u00df catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between \u00df cat ON CMs and coECs. Overall design: We treated 1 mpf Tgcryaa:EGFP  myl7:GAL4db TCF?C;5xUAS:NTR mCherry fish with DMSO or 10 \u00b5M IWR1 endo for 48 hours. Hearts were resected from the fish treated with MTZ or DMSO  respectively. We isolated AVCs from hearts and dissociated them into single cells. Barcoded single cell cDNA libraries were prepared using the Chromium Next GEM single cell three primereagent kits v3.1 and sequenced using Illumina NextSeq 500.", "parent bioproject:PRJNA926354", "pubmed:39395410", null, "AVC  IWR1  scRNAseq", "GSM8147318", null, "source name:Heart|tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:IWR1|geo loc name:missing|collection date:missing", "AVC  IWR1  scRNAseq", "The 10x Genomics Cell Ranger pipeline v6.1.1 was used to perform sample demultiplexing  alignment to the reference genome Danio rerio GRCz11  barcode/UMI processing  and gene counting for each cell. Assembly: GRCz11 Supplementary files format and content: tsv files contain lists of genes and barcodes for each sample  mtx files count gene UMI couns for each sample", "Heart", "Fish were treated with DMSO or 10 \u03bcM MTZ dissolved in fish water for 48 h in the dark.", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell 3\u2019reagent kits v3.1 10X Genomics  1000128  according to the manufacturer\u2019s protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:IWR1", "GSM8147318", "GSM8147318: AVC  IWR1  scRNAseq; Danio rerio; RNA Seq", "GSM8147318 r1", "GSM8147318", "1", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell three primereagent kits v3.1 10X Genomics  1000128  according to the manufacturer's protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP495277", null, "loader:fastq load.py", "AVC_IWR1_S1_L004_I1_001.fastq.gz AVC_IWR1_S1_L004_I2_001.fastq.gz AVC_IWR1_S1_L004_R1_001.fastq.gz AVC_IWR1_S1_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 8627728812.0, 62519774.0, "GSM8147318 r4", "0:10 1:10 2:28 3:90", "A:1576009383;C:1313466786;G:1332114241;T:1404392019;N:797231", 10, 10, 28, 90, 1576009383, 1313466786, 1332114241, 1404392019, 797231, "SRX23952998", "SRS20753493", "SRA1824323", "Department of Pharmacology, Yamagata University", "Department of Pharmacology, Yamagata University", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "nextseq", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Japan", "2024-03-14", "Juvenile", "Juvenile", "Heart", "Cardiovascular System"], [30742, "SRR28346489", "SRX23952997", "SRS20753492", "SRP495277", "PRJNA1088100", "Single cell transcriptional profiles of the atrioventricular canal of 1 mpf zebrafish treated with DMSO or IWR 1 endo", "GSE261604", "Transcriptome Analysis", "To identify the crosstalk between Wnt/\u00df catenin signaling activated cardiomyocytes \u00df cat ON CMs and coronary endothelial cells coECs  we performed single cell RNA sequencing on all the cells of the atrioventricular canal AVC at 1 month  which contains newly formed coronary vessels. To identify the extracellular ligands regulated by Wnt/\u00df catenin signaling  we also collected AVC from fish treated with DMSO or IWR1 endo  an inhibitor of Wnt/\u00df catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between \u00df cat ON CMs and coECs. Overall design: We treated 1 mpf Tgcryaa:EGFP  myl7:GAL4db TCF?C;5xUAS:NTR mCherry fish with DMSO or 10 \u00b5M IWR1 endo for 48 hours. Hearts were resected from the fish treated with MTZ or DMSO  respectively. We isolated AVCs from hearts and dissociated them into single cells. Barcoded single cell cDNA libraries were prepared using the Chromium Next GEM single cell three primereagent kits v3.1 and sequenced using Illumina NextSeq 500.", "parent bioproject:PRJNA926354", "pubmed:39395410", null, "AVC  DMSO  scRNAseq", "GSM8147317", null, "source name:Heart|tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:DMSO|geo loc name:missing|collection date:missing", "AVC  DMSO  scRNAseq", "The 10x Genomics Cell Ranger pipeline v6.1.1 was used to perform sample demultiplexing  alignment to the reference genome Danio rerio GRCz11  barcode/UMI processing  and gene counting for each cell. Assembly: GRCz11 Supplementary files format and content: tsv files contain lists of genes and barcodes for each sample  mtx files count gene UMI couns for each sample", "Heart", "Fish were treated with DMSO or 10 \u03bcM MTZ dissolved in fish water for 48 h in the dark.", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell 3\u2019reagent kits v3.1 10X Genomics  1000128  according to the manufacturer\u2019s protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:DMSO", "GSM8147317", "GSM8147317: AVC  DMSO  scRNAseq; Danio rerio; RNA Seq", "GSM8147317 r1", "GSM8147317", "1", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell three primereagent kits v3.1 10X Genomics  1000128  according to the manufacturer's protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP495277", null, "loader:fastq load.py", "AVC_Ctrl_S1_L001_I1_001.fastq.gz AVC_Ctrl_S1_L001_I2_001.fastq.gz AVC_Ctrl_S1_L001_R1_001.fastq.gz AVC_Ctrl_S1_L001_R2_001.fastq.gz", "fastq fastq fastq fastq", 7385103810.0, 53515245.0, "GSM8147317 r1", "0:10 1:10 2:28 3:90", "A:1329371520;C:1135299252;G:1143250549;T:1207226310;N:1224419", 10, 10, 28, 90, 1329371520, 1135299252, 1143250549, 1207226310, 1224419, "SRX23952997", "SRS20753492", "SRA1824323", "Department of Pharmacology, Yamagata University", "Department of Pharmacology, Yamagata University", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "nextseq", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Japan", "2024-03-14", "Juvenile", "Juvenile", "Heart", "Cardiovascular System"], [30743, "SRR28346490", "SRX23952997", "SRS20753492", "SRP495277", "PRJNA1088100", "Single cell transcriptional profiles of the atrioventricular canal of 1 mpf zebrafish treated with DMSO or IWR 1 endo", "GSE261604", "Transcriptome Analysis", "To identify the crosstalk between Wnt/\u00df catenin signaling activated cardiomyocytes \u00df cat ON CMs and coronary endothelial cells coECs  we performed single cell RNA sequencing on all the cells of the atrioventricular canal AVC at 1 month  which contains newly formed coronary vessels. To identify the extracellular ligands regulated by Wnt/\u00df catenin signaling  we also collected AVC from fish treated with DMSO or IWR1 endo  an inhibitor of Wnt/\u00df catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between \u00df cat ON CMs and coECs. Overall design: We treated 1 mpf Tgcryaa:EGFP  myl7:GAL4db TCF?C;5xUAS:NTR mCherry fish with DMSO or 10 \u00b5M IWR1 endo for 48 hours. Hearts were resected from the fish treated with MTZ or DMSO  respectively. We isolated AVCs from hearts and dissociated them into single cells. Barcoded single cell cDNA libraries were prepared using the Chromium Next GEM single cell three primereagent kits v3.1 and sequenced using Illumina NextSeq 500.", "parent bioproject:PRJNA926354", "pubmed:39395410", null, "AVC  DMSO  scRNAseq", "GSM8147317", null, "source name:Heart|tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:DMSO|geo loc name:missing|collection date:missing", "AVC  DMSO  scRNAseq", "The 10x Genomics Cell Ranger pipeline v6.1.1 was used to perform sample demultiplexing  alignment to the reference genome Danio rerio GRCz11  barcode/UMI processing  and gene counting for each cell. Assembly: GRCz11 Supplementary files format and content: tsv files contain lists of genes and barcodes for each sample  mtx files count gene UMI couns for each sample", "Heart", "Fish were treated with DMSO or 10 \u03bcM MTZ dissolved in fish water for 48 h in the dark.", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell 3\u2019reagent kits v3.1 10X Genomics  1000128  according to the manufacturer\u2019s protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:DMSO", "GSM8147317", "GSM8147317: AVC  DMSO  scRNAseq; Danio rerio; RNA Seq", "GSM8147317 r1", "GSM8147317", "1", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell three primereagent kits v3.1 10X Genomics  1000128  according to the manufacturer's protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP495277", null, "loader:fastq load.py", "AVC_Ctrl_S1_L002_I1_001.fastq.gz AVC_Ctrl_S1_L002_I2_001.fastq.gz AVC_Ctrl_S1_L002_R1_001.fastq.gz AVC_Ctrl_S1_L002_R2_001.fastq.gz", "fastq fastq fastq fastq", 7313299098.0, 52994921.0, "GSM8147317 r2", "0:10 1:10 2:28 3:90", "A:1316101332;C:1124200896;G:1133146934;T:1194866024;N:1227704", 10, 10, 28, 90, 1316101332, 1124200896, 1133146934, 1194866024, 1227704, "SRX23952997", "SRS20753492", "SRA1824323", "Department of Pharmacology, Yamagata University", "Department of Pharmacology, Yamagata University", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "nextseq", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Japan", "2024-03-14", "Juvenile", "Juvenile", "Heart", "Cardiovascular System"], [30744, "SRR28346491", "SRX23952997", "SRS20753492", "SRP495277", "PRJNA1088100", "Single cell transcriptional profiles of the atrioventricular canal of 1 mpf zebrafish treated with DMSO or IWR 1 endo", "GSE261604", "Transcriptome Analysis", "To identify the crosstalk between Wnt/\u00df catenin signaling activated cardiomyocytes \u00df cat ON CMs and coronary endothelial cells coECs  we performed single cell RNA sequencing on all the cells of the atrioventricular canal AVC at 1 month  which contains newly formed coronary vessels. To identify the extracellular ligands regulated by Wnt/\u00df catenin signaling  we also collected AVC from fish treated with DMSO or IWR1 endo  an inhibitor of Wnt/\u00df catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between \u00df cat ON CMs and coECs. Overall design: We treated 1 mpf Tgcryaa:EGFP  myl7:GAL4db TCF?C;5xUAS:NTR mCherry fish with DMSO or 10 \u00b5M IWR1 endo for 48 hours. Hearts were resected from the fish treated with MTZ or DMSO  respectively. We isolated AVCs from hearts and dissociated them into single cells. Barcoded single cell cDNA libraries were prepared using the Chromium Next GEM single cell three primereagent kits v3.1 and sequenced using Illumina NextSeq 500.", "parent bioproject:PRJNA926354", "pubmed:39395410", null, "AVC  DMSO  scRNAseq", "GSM8147317", null, "source name:Heart|tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:DMSO|geo loc name:missing|collection date:missing", "AVC  DMSO  scRNAseq", "The 10x Genomics Cell Ranger pipeline v6.1.1 was used to perform sample demultiplexing  alignment to the reference genome Danio rerio GRCz11  barcode/UMI processing  and gene counting for each cell. Assembly: GRCz11 Supplementary files format and content: tsv files contain lists of genes and barcodes for each sample  mtx files count gene UMI couns for each sample", "Heart", "Fish were treated with DMSO or 10 \u03bcM MTZ dissolved in fish water for 48 h in the dark.", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell 3\u2019reagent kits v3.1 10X Genomics  1000128  according to the manufacturer\u2019s protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:DMSO", "GSM8147317", "GSM8147317: AVC  DMSO  scRNAseq; Danio rerio; RNA Seq", "GSM8147317 r1", "GSM8147317", "1", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell three primereagent kits v3.1 10X Genomics  1000128  according to the manufacturer's protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP495277", null, "loader:fastq load.py", "AVC_Ctrl_S1_L003_I1_001.fastq.gz AVC_Ctrl_S1_L003_I2_001.fastq.gz AVC_Ctrl_S1_L003_R1_001.fastq.gz AVC_Ctrl_S1_L003_R2_001.fastq.gz", "fastq fastq fastq fastq", 7457857272.0, 54042444.0, "GSM8147317 r3", "0:10 1:10 2:28 3:90", "A:1341763332;C:1146520201;G:1156131488;T:1218395804;N:1009135", 10, 10, 28, 90, 1341763332, 1146520201, 1156131488, 1218395804, 1009135, "SRX23952997", "SRS20753492", "SRA1824323", "Department of Pharmacology, Yamagata University", "Department of Pharmacology, Yamagata University", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "nextseq", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Japan", "2024-03-14", "Juvenile", "Juvenile", "Heart", "Cardiovascular System"], [30745, "SRR28346492", "SRX23952997", "SRS20753492", "SRP495277", "PRJNA1088100", "Single cell transcriptional profiles of the atrioventricular canal of 1 mpf zebrafish treated with DMSO or IWR 1 endo", "GSE261604", "Transcriptome Analysis", "To identify the crosstalk between Wnt/\u00df catenin signaling activated cardiomyocytes \u00df cat ON CMs and coronary endothelial cells coECs  we performed single cell RNA sequencing on all the cells of the atrioventricular canal AVC at 1 month  which contains newly formed coronary vessels. To identify the extracellular ligands regulated by Wnt/\u00df catenin signaling  we also collected AVC from fish treated with DMSO or IWR1 endo  an inhibitor of Wnt/\u00df catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between \u00df cat ON CMs and coECs. Overall design: We treated 1 mpf Tgcryaa:EGFP  myl7:GAL4db TCF?C;5xUAS:NTR mCherry fish with DMSO or 10 \u00b5M IWR1 endo for 48 hours. Hearts were resected from the fish treated with MTZ or DMSO  respectively. We isolated AVCs from hearts and dissociated them into single cells. Barcoded single cell cDNA libraries were prepared using the Chromium Next GEM single cell three primereagent kits v3.1 and sequenced using Illumina NextSeq 500.", "parent bioproject:PRJNA926354", "pubmed:39395410", null, "AVC  DMSO  scRNAseq", "GSM8147317", null, "source name:Heart|tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:DMSO|geo loc name:missing|collection date:missing", "AVC  DMSO  scRNAseq", "The 10x Genomics Cell Ranger pipeline v6.1.1 was used to perform sample demultiplexing  alignment to the reference genome Danio rerio GRCz11  barcode/UMI processing  and gene counting for each cell. Assembly: GRCz11 Supplementary files format and content: tsv files contain lists of genes and barcodes for each sample  mtx files count gene UMI couns for each sample", "Heart", "Fish were treated with DMSO or 10 \u03bcM MTZ dissolved in fish water for 48 h in the dark.", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell 3\u2019reagent kits v3.1 10X Genomics  1000128  according to the manufacturer\u2019s protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "tissue:Heart|genotype:Tgfli1:EGFP;Tgcryaa:EGFP  myl7:GAL4db TCFdeltaC;5xUAS:NTR mCherry|treatment:DMSO", "GSM8147317", "GSM8147317: AVC  DMSO  scRNAseq; Danio rerio; RNA Seq", "GSM8147317 r1", "GSM8147317", "1", "Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCF\u0394C;5xUAS:NTR mCherry fish treated with DMSO or 10 \u03bcM MTZ for 48 h. The resected hearts were collected in 35 mm dishes containing HBSS without xxx and magnesium. The atrium and the ventricle were removed from AVCs. Only AVCs were transferred to a 12 well plate. The AVCs were digested with 3 mg/ml collagenase type IV Worthington  LS004188/HBSS for 30 min at 28.5 \u00baC. post pipetting  the cells were collected in low binding tubes  pelleted 3000 rpm  5 min at 4\u00baC  and washed in 0.5% FBS/DMEM phenol red free. Cells were resuspended in 0.5% FBS/DMEM and counted using a cell counter Thermofisher Scientific. The resulting cell suspension was loaded onto a 10X Chromium Controller 10X Genomics. The scRNA seq library was prepared using Chromium Next GEM single cell three primereagent kits v3.1 10X Genomics  1000128  according to the manufacturer's protocol. Following droplet generation and barcoding  cDNA was synthesized and amplified. The cDNA was processed to construct Illumine sequencing libraries. Sequencing was performed on a NextSeq 500 Illumina. Raw sequencing data were processed using 10X Genomics Cell Ranger software v6.1.1.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP495277", null, "loader:fastq load.py", "AVC_Ctrl_S1_L004_I1_001.fastq.gz AVC_Ctrl_S1_L004_I2_001.fastq.gz AVC_Ctrl_S1_L004_R1_001.fastq.gz AVC_Ctrl_S1_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 7430049030.0, 53840935.0, "GSM8147317 r4", "0:10 1:10 2:28 3:90", "A:1337094348;C:1142353903;G:1151539276;T:1214006711;N:689912", 10, 10, 28, 90, 1337094348, 1142353903, 1151539276, 1214006711, 689912, "SRX23952997", "SRS20753492", "SRA1824323", "Department of Pharmacology, Yamagata University", "Department of Pharmacology, Yamagata University", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "nextseq", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Japan", "2024-03-14", "Juvenile", "Juvenile", "Heart", "Cardiovascular System"], [30746, "SRR28348607", "SRX23954674", "SRS20755104", "SRP495302", "PRJNA1088122", "Decoding the molecular  cellular  and functional heterogeneity of zebrafish intracardiac nervous system", "GSE261619", "Transcriptome Analysis", "In this project  we present a comprehensive taxonomy of the intracardiac nervous system IcNS  utilizing single cell RNA sequencing  anatomical studies  and electrophysiological techniques. Overall design: For single cell sequencing experiments  25 Tgelavl3:eGFP previously known as HuC:GFP of 5 mpf animal were used from both sexes for the first set and 25 Tgelavl3:eGFP of 11 mpf  and 10 Tgnbt:DsRed of 22 mpf animals from both sexes were used for the second set. Cells were dissociated sorted by FACS as described Cosacak et al. 2019. The single cell encapsulation and cDNA synthesis done by following 10X Genomics' workflows. The reads were aligned to zebrafish genome GRChZ 11  v 105 was used for gene annotation and assigning reads to genes. Cellranger software version 6.1.2 was used to process the data.", null, "pubmed:39632839", null, "Tgelavl3:eGFP  Tgnbt:DsRed", "GSM8147512", null, "source name:atrium|tissue:atrium|genotype:Tgelavl3:eGFP  Tgnbt:DsRed|geo loc name:missing|collection date:missing", "Tgelavl3:eGFP  Tgnbt:DsRed", "The demultiplexing  barcoded processing  gene counting and aggregation were made using the 10x genomics' cellranger software version 6.1.2 https://support.10xgenomics.com/single cell gene expression/software/pipelines/latest/output/metrics The fastq files were aligned to zebrafish genome GRCz11 and ensemble transcripts from Ensembl Release 105 by using STAR. The BAM files were as input for Cell Ranger 10X genomics to generate processed data files that include gene names row names and cell names column names and counts. Further analysis done by using Seurat package in R. Assembly: GRCz11 Supplementary files format and content: filtered bc matrix outputs from Cell Ranger", "atrium", null, "Cells from zebrafish heart were dissociated. In addition to GFP and DsRed in the genome of the fish  viability indicator dyes Sytox Blue Invitrogen  Cat No. S34857 and Dycle Ruby Invitrogen  Cat. No. V10309 were used to sort the cells by FACS. The library preparation was performed by 10X Genomics as per manufacture's protocol. 10X genomics", "Zebrafish were kept in the re circulating system on a 14/10 h light/dark cycle  pH7.5  at 28\u00b0C \u00b11\u00b0C in groups of 20 animals per 2.8L.", "tissue:atrium|genotype:Tgelavl3:eGFP  Tgnbt:DsRed", "GSM8147512", "GSM8147512: Tgelavl3:eGFP  Tgnbt:DsRed; Danio rerio; RNA Seq", "GSM8147512 r1", "GSM8147512", "1", "Cells from zebrafish heart were dissociated. In addition to GFP and DsRed in the genome of the fish  viability indicator dyes Sytox Blue Invitrogen  Cat No. S34857 and Dycle Ruby Invitrogen  Cat. No. V10309 were used to sort the cells by FACS. The library preparation was performed by 10X Genomics as per manufacture's protocol. 10X genomics", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP495302", null, "loader:fastq load.py", "CP030_S1_L004_I1_001.fastq.gz CP030_S1_L004_I2_001.fastq.gz CP030_S1_L004_R1_001.fastq.gz CP030_S1_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 86914563102.0, 391507041.0, "GSM8147512 r1", "0:10 1:10 2:101 3:101", "A:23707102309;C:15625825731;G:14915197158;T:24834868356;N:1428728", 10, 10, 101, 101, 23707102309, 15625825731, 14915197158, 24834868356, 1428728, "SRX23954674", "SRS20755104", "SRA1824602", "Neurology &amp; TAUB Institute, Columbia University", "Neurology & TAUB Institute, Columbia University", 2, 0.0, 0.94374, 0.0, 0.12308, 1.0, 0.82055, null, 0.55544, 101, 101, "T", "B", "mate1 technical by mapping diff", "illumina", "nextseq", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-03-14", "Undetermined", "Adult", "Heart", "Cardiovascular System"], [30747, "SRR28348608", "SRX23954673", "SRS20755103", "SRP495302", "PRJNA1088122", "Decoding the molecular  cellular  and functional heterogeneity of zebrafish intracardiac nervous system", "GSE261619", "Transcriptome Analysis", "In this project  we present a comprehensive taxonomy of the intracardiac nervous system IcNS  utilizing single cell RNA sequencing  anatomical studies  and electrophysiological techniques. Overall design: For single cell sequencing experiments  25 Tgelavl3:eGFP previously known as HuC:GFP of 5 mpf animal were used from both sexes for the first set and 25 Tgelavl3:eGFP of 11 mpf  and 10 Tgnbt:DsRed of 22 mpf animals from both sexes were used for the second set. Cells were dissociated sorted by FACS as described Cosacak et al. 2019. The single cell encapsulation and cDNA synthesis done by following 10X Genomics' workflows. The reads were aligned to zebrafish genome GRChZ 11  v 105 was used for gene annotation and assigning reads to genes. Cellranger software version 6.1.2 was used to process the data.", null, "pubmed:39632839", null, "Tgelavl3:eGFP", "GSM8147511", null, "source name:whole heart|tissue:whole heart|genotype:Tgelavl3:eGFP|geo loc name:missing|collection date:missing", "Tgelavl3:eGFP", "The demultiplexing  barcoded processing  gene counting and aggregation were made using the 10x genomics' cellranger software version 6.1.2 https://support.10xgenomics.com/single cell gene expression/software/pipelines/latest/output/metrics The fastq files were aligned to zebrafish genome GRCz11 and ensemble transcripts from Ensembl Release 105 by using STAR. The BAM files were as input for Cell Ranger 10X genomics to generate processed data files that include gene names row names and cell names column names and counts. Further analysis done by using Seurat package in R. Assembly: GRCz11 Supplementary files format and content: filtered bc matrix outputs from Cell Ranger", "whole heart", null, "Cells from zebrafish heart were dissociated. In addition to GFP and DsRed in the genome of the fish  viability indicator dyes Sytox Blue Invitrogen  Cat No. S34857 and Dycle Ruby Invitrogen  Cat. No. V10309 were used to sort the cells by FACS. The library preparation was performed by 10X Genomics as per manufacture's protocol. 10X genomics", "Zebrafish were kept in the re circulating system on a 14/10 h light/dark cycle  pH7.5  at 28\u00b0C \u00b11\u00b0C in groups of 20 animals per 2.8L.", "tissue:whole heart|genotype:Tgelavl3:eGFP", "GSM8147511", "GSM8147511: Tgelavl3:eGFP; Danio rerio; RNA Seq", "GSM8147511 r1", "GSM8147511", "1", "Cells from zebrafish heart were dissociated. In addition to GFP and DsRed in the genome of the fish  viability indicator dyes Sytox Blue Invitrogen  Cat No. S34857 and Dycle Ruby Invitrogen  Cat. No. V10309 were used to sort the cells by FACS. The library preparation was performed by 10X Genomics as per manufacture's protocol. 10X genomics", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP495302", null, "loader:fastq load.py", "CP017_S1_L001_I1_001.fastq.gz CP017_S1_L001_I2_001.fastq.gz CP017_S1_L001_R1_001.fastq.gz CP017_S1_L001_R2_001.fastq.gz", "fastq fastq fastq fastq", 41176621272.0, 185480276.0, "GSM8147511 r1", "0:10 1:10 2:101 3:101", "A:9993088511;C:6520920913;G:6513822557;T:14438876590;N:307181", 10, 10, 101, 101, 9993088511, 6520920913, 6513822557, 14438876590, 307181, "SRX23954673", "SRS20755103", "SRA1824602", "Neurology &amp; TAUB Institute, Columbia University", "Neurology & TAUB Institute, Columbia University", 2, 0.01251, 0.96696, 0.0018, 0.07994, 0.9922, 0.83861, 0.46366, 0.47886, 101, 101, "T", "B", "mate1 technical by mapping diff", "illumina", "nextseq", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-03-14", "Undetermined", "Adult", "Heart", "Cardiovascular System"], [30748, "SRR28348609", "SRX23954673", "SRS20755103", "SRP495302", "PRJNA1088122", "Decoding the molecular  cellular  and functional heterogeneity of zebrafish intracardiac nervous system", "GSE261619", "Transcriptome Analysis", "In this project  we present a comprehensive taxonomy of the intracardiac nervous system IcNS  utilizing single cell RNA sequencing  anatomical studies  and electrophysiological techniques. Overall design: For single cell sequencing experiments  25 Tgelavl3:eGFP previously known as HuC:GFP of 5 mpf animal were used from both sexes for the first set and 25 Tgelavl3:eGFP of 11 mpf  and 10 Tgnbt:DsRed of 22 mpf animals from both sexes were used for the second set. Cells were dissociated sorted by FACS as described Cosacak et al. 2019. The single cell encapsulation and cDNA synthesis done by following 10X Genomics' workflows. The reads were aligned to zebrafish genome GRChZ 11  v 105 was used for gene annotation and assigning reads to genes. Cellranger software version 6.1.2 was used to process the data.", null, "pubmed:39632839", null, "Tgelavl3:eGFP", "GSM8147511", null, "source name:whole heart|tissue:whole heart|genotype:Tgelavl3:eGFP|geo loc name:missing|collection date:missing", "Tgelavl3:eGFP", "The demultiplexing  barcoded processing  gene counting and aggregation were made using the 10x genomics' cellranger software version 6.1.2 https://support.10xgenomics.com/single cell gene expression/software/pipelines/latest/output/metrics The fastq files were aligned to zebrafish genome GRCz11 and ensemble transcripts from Ensembl Release 105 by using STAR. The BAM files were as input for Cell Ranger 10X genomics to generate processed data files that include gene names row names and cell names column names and counts. Further analysis done by using Seurat package in R. Assembly: GRCz11 Supplementary files format and content: filtered bc matrix outputs from Cell Ranger", "whole heart", null, "Cells from zebrafish heart were dissociated. In addition to GFP and DsRed in the genome of the fish  viability indicator dyes Sytox Blue Invitrogen  Cat No. S34857 and Dycle Ruby Invitrogen  Cat. No. V10309 were used to sort the cells by FACS. The library preparation was performed by 10X Genomics as per manufacture's protocol. 10X genomics", "Zebrafish were kept in the re circulating system on a 14/10 h light/dark cycle  pH7.5  at 28\u00b0C \u00b11\u00b0C in groups of 20 animals per 2.8L.", "tissue:whole heart|genotype:Tgelavl3:eGFP", "GSM8147511", "GSM8147511: Tgelavl3:eGFP; Danio rerio; RNA Seq", "GSM8147511 r1", "GSM8147511", "1", "Cells from zebrafish heart were dissociated. In addition to GFP and DsRed in the genome of the fish  viability indicator dyes Sytox Blue Invitrogen  Cat No. S34857 and Dycle Ruby Invitrogen  Cat. No. V10309 were used to sort the cells by FACS. The library preparation was performed by 10X Genomics as per manufacture's protocol. 10X genomics", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 500", null, "SRP495302", null, "loader:fastq load.py", "CP017_S1_L002_I1_001.fastq.gz CP017_S1_L002_I2_001.fastq.gz CP017_S1_L002_R1_001.fastq.gz CP017_S1_L002_R2_001.fastq.gz", "fastq fastq fastq fastq", 41449667730.0, 186710215.0, "GSM8147511 r2", "0:10 1:10 2:101 3:101", "A:10111586707;C:6536521889;G:6498472573;T:14568538148;N:344113", 10, 10, 101, 101, 10111586707, 6536521889, 6498472573, 14568538148, 344113, "SRX23954673", "SRS20755103", "SRA1824602", "Neurology &amp; TAUB Institute, Columbia University", "Neurology & TAUB Institute, Columbia University", 2, 0.01136, 0.96721, 0.00127, 0.07919, 0.99299, 0.83956, 0.4846, 0.4789, 101, 101, "T", "B", "mate1 technical by mapping diff", "illumina", "nextseq", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-03-14", "Undetermined", "Adult", "Heart", "Cardiovascular System"], [30775, "SRR28357669", "SRX23962905", "SRS20762620", "SRP495490", "PRJNA1088483", "Mechanistic Studies of the Regulation of Cardiomyocytes Spatial Distributions by Heterogeneous Erbb2 Expression [scRNA Seq]", "GSE261718", "Other", "Purpose: To explore the endogenous expression pattern of Erbb2. Methods:  Approximately 1000 hearts dissected from 72 hpf Tgmyl7:mCherry embryos were digested in 0.25% trypsin EDTA solution for single cell RNA sequencing. Results: We found that ventricular Erbb2 expression was highly enriched in subcluster 0 and 2  but weakly expressed in subcluster 3  10 and 12. Conclusions: Erbb2 exhibits heterogeneous expression during trabeculation. Overall design: 72 hpf Tgmyl7:mCherry zebrafish hearts were collected for single cell RNA sequencing.", null, "pubmed:40053597", null, "S72hpf trunks", "GSM8149579", null, "source name:zebrafish hearts|tissue:zebrafish hearts|cell line:Tgmyl7:mCherry heart cells|cell type:zebrafish heart cells|geo loc name:missing|collection date:missing", "S72hpf trunks", "Illumina sequencing reads were aligned to the zebrafish mRNA reference genome GRCz11 using the 10x Genomics CellRanger pipeline version 3.0.2 with default parameters. Assembly: GRCz11 Supplementary files format and content: zip compressed  files include filtered gene bc matrices post running CellRanger pipeline", "zebrafish hearts", null, "A total of 1000 hearts dissected from Tgmyl7:mCherry embryos at 72 hpf were digested in 0.25% trypsin EDTA solution at 37 \u00b0C for 30 min. Single cell RNA seq library construction was performed using a droplet based library prep platform Chromium 10x Genomics with a Chromium Single Cell Reagent Kit according to the manufacturer\u2019s instructions. Single cell RNA Seq 10x", "Dechorionated zebrafish embryos were maintained in 0.3x Danieau\u2019s Buffer at 28 \u00b0C with a photoperiod of 14/10\u2009h light/dark.", "tissue:zebrafish hearts|cell line:Tgmyl7:mCherry heart cells|cell type:zebrafish heart cells", "GSM8149579", "GSM8149579: S72hpf trunks; Danio rerio; RNA Seq", "GSM8149579 r1", "GSM8149579", "1", "A total of 1000 hearts dissected from Tgmyl7:mCherry embryos at 72 hpf were digested in 0.25% trypsin EDTA solution at 37 \u00b0C for 30 min. Single cell RNA seq library construction was performed using a droplet based library prep platform Chromium 10x Genomics with a Chromium Single Cell Reagent Kit according to the manufacturer's instructions. Single cell RNA Seq 10x", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP495490", null, null, "zebrafish_heart_72h_R1_fastq.gz zebrafish_heart_72h_R2_fastq.gz", "fastq fastq", 155978889600.0, 519929632.0, "GSM8149579 r1", "0:150 1:150", "A:63302225780;C:28042347630;G:26792086978;T:37838422350;N:3806862", 150, 150, null, null, 63302225780, 28042347630, 26792086978, 37838422350, 3806862, "SRX23962905", "SRS20762620", "SRA1825277", "Institute of genetics, Zhejiang University", "Institute of genetics, Zhejiang University", 2, 0.0, 0.92044, 0.0, 0.11022, 1.0, 0.80996, null, 0.54499, 150, 150, "T", "B", "mate1 technical by mapping diff", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "China", "2024-03-15", "Larval", "Larval", "Heart", "Cardiovascular System"], [31528, "SRR28423881", "SRX24027916", "SRS20821688", "SRP497294", "PRJNA1090898", "The innate immune regulator MyD88 dampens fibrosis during zebrafish heart regeneration dst169", "GSE262247", "Transcriptome Analysis", "The innate immune system is triggered xxx post injury and its spatiotemporal dynamics are critical for successful regeneration.  MyD88 is a key component of the innate immune response; however  its role during regeneration remains unclear.  Here we show that MyD88 controls not only the inflammatory but also the fibrotic response during zebrafish cardiac regeneration.  Our data reveal a significant reduction in pro inflammatory neutrophil and macrophage populations  as well as the expansion of a collagen rich endocardial population in cryoinjured myd88 /  ventricles.  Consistent with these findings  we observed increased myofibroblasts  fibrin abundance  and scarring in myd88 /  ventricles.  Transcriptomic analyses of endocardial cells and immunostaining experiments reveal compromised PI3K/AKT pathway activation in the myd88 /  endocardium.  Moreover  loss of MyD88 impairs cardiomyocyte proliferation and protrusive activity towards the injured area.  Notably  endothelial specific overexpression of myd88 reverses the neutrophil  fibrotic  and scarring phenotypes in cryoinjured myd88 /  ventricles.  Mechanistically  we identify the endocardial derived chemokine gene cxcl18b as a transcriptional target of the MyD88 signaling axis and using loss  and gain of function tools show that it controls neutrophil recruitment.  Altogether  these findings shed light on the pivotal role of MyD88 in modulating inflammation and fibrosis  thereby emphasizing the strong impact of the innate immune response during tissue regeneration. Overall design: Live zebrafish ventricular cells were isolated at 24 hour post cryoinjury hpci from myd88+/+ and myd88 /  ventricles by Fluorescence activated cell sorting FACS and analyzed using scRNAseq.", "parent bioproject:PRJNA1090894", "pubmed:39271818", null, "ventricular cells  myd88 /   24 hpci", "GSM8161054", null, "source name:cardiac ventricles|tissue:cardiac ventricles|cell type:ventricular cells|genotype:myd88 / |treatment:cardiac cryoinjury|geo loc name:missing|collection date:missing", "ventricular cells  myd88 /   24 hpci", "Raw reads were aligned against the zebrafish genome DanRer11 and counted by StarSolo Dobin et al.  doi: 10.1093/bioinformatics/bts635 followed by secondary analysis in Annotated Data Format. Preprocessed counts were further analyzed using Scanpy Wolf et al.  doi: 10.1186/s13059 017 1382 0. Basic cell quality control was conducted by taking the number of detected genes and mitochondrial content into consideration. We removed 32 cells in total that did not express more than 300 genes or had a mitochondrial content greater than 10%. Furthermore  we filtered 7823 genes if they were detected in less than 30 cells <0.01%. Raw counts per cell were normalized to the median count over all cells and transformed into log space to stabilize variance We initially reduced dimensionality of the dataset using PCA  retaining 50 principal components. Subsequent steps  like low dimensional UMAP embedding McInnes & Healy  https://arxiv.org/abs/1802.03426 and cell clustering via community detection Traag et al.  https://arxiv.org/abs/1810.08473  were based on the initial PCA. Final data visualization was done by CellxGene package DOI 10.5281/zenodo.3235020. Assembly: DanRer11 Supplementary files format and content: starsolo outputs", "cardiac ventricles", "cardiac cryoinjury 24 hours prior to heart extraction", "Ventricular cells were isolated from a pool of 4 myd88+/+ and 4 myd88 /  ventricles for the myd88+/+ and myd88 /  sample  respectively. Cell isolation was performed with the Pierce Primary Cardiomyocyte Isolation Kit Thermo Fisher Scientific following the manufacturer\u2019s instructions and with the following modifications: Incubation was performed at 30\u00b0C for 20 min  followed by resuspension in 1\u00d7 Hanks\u2019 balanced salt solution Gibco with 0.25% BSA. Suspended cells were sorted using FACSAriaIII sorter BD to exclude dead cells using DAPI Sigma. Library preparation was conducted according to the manufacturer indications Chromium Next GEM Single Cell 3\u2019 GEM  Library & Gel Bead Kit v3.1  16 rxns PN 1000121.", null, "tissue:cardiac ventricles|cell type:ventricular cells|genotype:myd88 / |treatment:cardiac cryoinjury", "GSM8161054", "GSM8161054: ventricular cells  myd88 /   24 hpci; Danio rerio; RNA Seq", "GSM8161054 r1", "GSM8161054", "1", "Ventricular cells were isolated from a pool of 4 myd88+/+ and 4 myd88 /  ventricles for the myd88+/+ and myd88 /  sample  respectively. Cell isolation was performed with the Pierce Primary Cardiomyocyte Isolation Kit Thermo Fisher Scientific following the manufacturer's instructions and with the following modifications: Incubation was performed at 30\u00b0C for 20 min  followed by resuspension in 1\u00d7 Hanks' balanced salt solution Gibco with 0.25% BSA. Suspended cells were sorted using FACSAriaIII sorter BD to exclude dead cells using DAPI Sigma. Library preparation was conducted according to the manufacturer indications Chromium Next GEM Single Cell three prime GEM  Library & Gel Bead Kit v3.1  16 rxns PN 1000121.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 2000", null, "SRP497294", null, null, "Pinelopi_10x_Zebrafish_Mut_Lib_R1.fastq.gz Pinelopi_10x_Zebrafish_Mut_Lib_R2.fastq.gz", "fastq fastq", 31356990530.0, 394538049.0, "GSM8161054 r1", "0:28 1:51.48", "A:8573180857;C:6884590114;G:7520784498;T:8220228225;N:158206836", 28, 51, null, null, 8573180857, 6884590114, 7520784498, 8220228225, 158206836, "SRX24027916", "SRS20821688", "SRA1832827", "MPI for heart and lung research", "MPI for heart and lung research", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "sc-like readlen", "illumina", "nextseq_v2", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Germany", "2024-03-22", "Cleavage", "Embryo", "Heart", "Cardiovascular System"], [31529, "SRR28423882", "SRX24027915", "SRS20821687", "SRP497294", "PRJNA1090898", "The innate immune regulator MyD88 dampens fibrosis during zebrafish heart regeneration dst169", "GSE262247", "Transcriptome Analysis", "The innate immune system is triggered xxx post injury and its spatiotemporal dynamics are critical for successful regeneration.  MyD88 is a key component of the innate immune response; however  its role during regeneration remains unclear.  Here we show that MyD88 controls not only the inflammatory but also the fibrotic response during zebrafish cardiac regeneration.  Our data reveal a significant reduction in pro inflammatory neutrophil and macrophage populations  as well as the expansion of a collagen rich endocardial population in cryoinjured myd88 /  ventricles.  Consistent with these findings  we observed increased myofibroblasts  fibrin abundance  and scarring in myd88 /  ventricles.  Transcriptomic analyses of endocardial cells and immunostaining experiments reveal compromised PI3K/AKT pathway activation in the myd88 /  endocardium.  Moreover  loss of MyD88 impairs cardiomyocyte proliferation and protrusive activity towards the injured area.  Notably  endothelial specific overexpression of myd88 reverses the neutrophil  fibrotic  and scarring phenotypes in cryoinjured myd88 /  ventricles.  Mechanistically  we identify the endocardial derived chemokine gene cxcl18b as a transcriptional target of the MyD88 signaling axis and using loss  and gain of function tools show that it controls neutrophil recruitment.  Altogether  these findings shed light on the pivotal role of MyD88 in modulating inflammation and fibrosis  thereby emphasizing the strong impact of the innate immune response during tissue regeneration. Overall design: Live zebrafish ventricular cells were isolated at 24 hour post cryoinjury hpci from myd88+/+ and myd88 /  ventricles by Fluorescence activated cell sorting FACS and analyzed using scRNAseq.", "parent bioproject:PRJNA1090894", "pubmed:39271818", null, "ventricular cells  myd88+/+  24 hpci", "GSM8161053", null, "source name:cardiac ventricles|tissue:cardiac ventricles|cell type:ventricular cells|genotype:myd88+/+|treatment:cardiac cryoinjury|geo loc name:missing|collection date:missing", "ventricular cells  myd88+/+  24 hpci", "Raw reads were aligned against the zebrafish genome DanRer11 and counted by StarSolo Dobin et al.  doi: 10.1093/bioinformatics/bts635 followed by secondary analysis in Annotated Data Format. Preprocessed counts were further analyzed using Scanpy Wolf et al.  doi: 10.1186/s13059 017 1382 0. Basic cell quality control was conducted by taking the number of detected genes and mitochondrial content into consideration. We removed 32 cells in total that did not express more than 300 genes or had a mitochondrial content greater than 10%. Furthermore  we filtered 7823 genes if they were detected in less than 30 cells <0.01%. Raw counts per cell were normalized to the median count over all cells and transformed into log space to stabilize variance We initially reduced dimensionality of the dataset using PCA  retaining 50 principal components. Subsequent steps  like low dimensional UMAP embedding McInnes & Healy  https://arxiv.org/abs/1802.03426 and cell clustering via community detection Traag et al.  https://arxiv.org/abs/1810.08473  were based on the initial PCA. Final data visualization was done by CellxGene package DOI 10.5281/zenodo.3235020. Assembly: DanRer11 Supplementary files format and content: starsolo outputs", "cardiac ventricles", "cardiac cryoinjury 24 hours prior to heart extraction", "Ventricular cells were isolated from a pool of 4 myd88+/+ and 4 myd88 /  ventricles for the myd88+/+ and myd88 /  sample  respectively. Cell isolation was performed with the Pierce Primary Cardiomyocyte Isolation Kit Thermo Fisher Scientific following the manufacturer\u2019s instructions and with the following modifications: Incubation was performed at 30\u00b0C for 20 min  followed by resuspension in 1\u00d7 Hanks\u2019 balanced salt solution Gibco with 0.25% BSA. Suspended cells were sorted using FACSAriaIII sorter BD to exclude dead cells using DAPI Sigma. Library preparation was conducted according to the manufacturer indications Chromium Next GEM Single Cell 3\u2019 GEM  Library & Gel Bead Kit v3.1  16 rxns PN 1000121.", null, "tissue:cardiac ventricles|cell type:ventricular cells|genotype:myd88+/+|treatment:cardiac cryoinjury", "GSM8161053", "GSM8161053: ventricular cells  myd88+/+  24 hpci; Danio rerio; RNA Seq", "GSM8161053 r1", "GSM8161053", "1", "Ventricular cells were isolated from a pool of 4 myd88+/+ and 4 myd88 /  ventricles for the myd88+/+ and myd88 /  sample  respectively. Cell isolation was performed with the Pierce Primary Cardiomyocyte Isolation Kit Thermo Fisher Scientific following the manufacturer's instructions and with the following modifications: Incubation was performed at 30\u00b0C for 20 min  followed by resuspension in 1\u00d7 Hanks' balanced salt solution Gibco with 0.25% BSA. Suspended cells were sorted using FACSAriaIII sorter BD to exclude dead cells using DAPI Sigma. Library preparation was conducted according to the manufacturer indications Chromium Next GEM Single Cell three prime GEM  Library & Gel Bead Kit v3.1  16 rxns PN 1000121.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 2000", null, "SRP497294", null, null, "Pinelopi_10x_Zebrafish_WT_Lib_R1.fastq.gz Pinelopi_10x_Zebrafish_WT_Lib_R2.fastq.gz", "fastq fastq", 40672259373.0, 511650018.0, "GSM8161053 r1", "0:28 1:51.49", "A:11079272327;C:8809520398;G:9307205642;T:11269370263;N:206890743", 28, 51, null, null, 11079272327, 8809520398, 9307205642, 11269370263, 206890743, "SRX24027915", "SRS20821687", "SRA1832827", "MPI for heart and lung research", "MPI for heart and lung research", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "sc-like readlen", "illumina", "nextseq_v2", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Germany", "2024-03-22", "Cleavage", "Embryo", "Heart", "Cardiovascular System"], [31674, "SRR28490919", "SRX24093157", "SRS20882453", "SRP498465", "PRJNA1093008", "Distinct features of the regenerating heart uncovered through comparative single cell profiling", "GSE262689", "Other", "Adult humans respond to heart injury by forming a permanent scar  yet other vertebrates are capable of robust and complete cardiac regeneration. Despite progress towards characterizing the mechanisms of cardiac regeneration in fish and amphibians  the large evolutionary gulf between mammals and regenerating vertebrates complicates deciphering which cellular and molecular features truly enable regeneration. To better define these features  we compared cardiac injury responses in zebrafish and medaka  two fish species that share similar heart anatomy and common teleost ancestry but differ in regenerative capability. We used single cell transcriptional profiling to create a time resolved comparative cell atlas of injury responses in all major cardiac cell types across both species. With this approach  we identified several key features that distinguish cardiac injury response in the non regenerating medaka heart. By comparing immune responses to injury  we found altered cell recruitment and a distinct pro inflammatory gene program in medaka leukocytes  and an absence of the injury induced interferon response seen in zebrafish. In addition  we found a lack of pro regenerative signals  including nrg1 and retinoic acid  from medaka endothelial and epicardial cells. Finally  we identified alterations in the myocardial structure in medaka  where they lack primordial layer cardiomyocytes and fail to employ a cardioprotective gene program shared by regenerating vertebrates. Our findings reveal notable variation in injury response across nearly all major cardiac cell types in zebrafish and medaka  demonstrating how evolutionary divergence influences the hidden cellular features underpinning regenerative potential in these seemingly similar vertebrates. Overall design: scRNA seq of dissected ventricles from zebrafish and medaka fish before injury  3 days  and 14 xxx post injury", null, null, null, "zebrafish 14dpi rep6", "GSM8173843", null, "source name:Heart Ventricle|tissue:Heart Ventricle|treatment:14 xxx post injury|geo loc name:missing|collection date:missing", "zebrafish 14dpi rep6", "Single cell RNA seq reads were processed with Cellranger from 10X Genomics with the default settings  using GRCz11 v4.3.2 reference Lawson et al.  2020 for zebrafish read alignments and ASM223467v1 for Medaka. Assembly: GRCz11  ASM223467v1 Supplementary files format and content: Tab separated values files and matrix files", "Heart Ventricle", "Cryoinjuries were performed on the ventricle apex of both medaka and zebrafish as described previously Gonz\u00e1lez Rosa et al.  2011. Briefly  0.02% and 0.04% Tricaine MS 222 was used to anesthetize zebrafish and medaka  respectively. Fish were mounted on a moist sponge. The ventricle apex was exposed by making a small thoracic incision using forceps and dissecting scissors. A cryoprobe was constructed as described previously using a 0.5 mm diameter copper wireGonz\u00e1lez Rosa and Mercader  2012. post submersion in liquid nitrogen for at least 2 minutes  the probe was placed in contact with the ventricle apex for exactly 23 seconds. post injury  fish were placed back into freshwater tanks to recover  then transferred back into the fish facility for monitoring.", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer\u2019s specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", "Wild type T\u00fcbingen zebrafish and CAB medaka  aged 6 month 18 month unless otherwise stated  were used for all experiments. All zebrafish and medaka work was performed at University of Utah\u2019s CBRZ zebrafish facility. This study was conducted under the approval of the Office of Institutional Animal Care and Use Committee IACUC no. 20 07013 of the University of Utah\u2019s animal care and use program.", "tissue:Heart Ventricle|treatment:14 xxx post injury", "GSM8173843", "GSM8173843: zebrafish 14dpi rep6; Danio rerio; RNA Seq", "GSM8173843 r1", "GSM8173843", "1", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer's specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP498465", null, "loader:fastq load.py|options:  readTypes=TTBB   read1PairFiles=19730X3 220617 A00421 0450 BHYLWFDSX3 S12 L004 I1 001.fastq.gz   read2PairFiles=19730X3 220617 A00421 0450 BHYLWFDSX3 S12 L004 I2 001.fastq.gz   read3PairFiles=19730X3 220617 A00421 0450 BHYLWFDSX3 S12 L004 R1 001.fastq.gz   read4PairFiles=19730X3 220617 A00421 0450 BHYLWFDSX3 S12 L004 R2 001.fastq.gz", "19730X3_220617_A00421_0450_BHYLWFDSX3_S12_L004_I1_001.fastq.gz 19730X3_220617_A00421_0450_BHYLWFDSX3_S12_L004_I2_001.fastq.gz 19730X3_220617_A00421_0450_BHYLWFDSX3_S12_L004_R1_001.fastq.gz 19730X3_220617_A00421_0450_BHYLWFDSX3_S12_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 74593926792.0, 376737004.0, "GSM8173843 r1", "0:10 1:10 2:28 3:150", "A:19954586491;C:15851545871;G:13974009323;T:17278682199;N:362828", 10, 10, 28, 150, 19954586491, 15851545871, 13974009323, 17278682199, 362828, "SRX24093157", "SRS20882453", "SRA1835934", "Gagnon, Biology, University of Utah", "Gagnon, Biology, University of Utah", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-03-28", "Adult", "Adult", "Heart", "Cardiovascular System"], [31675, "SRR28490920", "SRX24093156", "SRS20882452", "SRP498465", "PRJNA1093008", "Distinct features of the regenerating heart uncovered through comparative single cell profiling", "GSE262689", "Other", "Adult humans respond to heart injury by forming a permanent scar  yet other vertebrates are capable of robust and complete cardiac regeneration. Despite progress towards characterizing the mechanisms of cardiac regeneration in fish and amphibians  the large evolutionary gulf between mammals and regenerating vertebrates complicates deciphering which cellular and molecular features truly enable regeneration. To better define these features  we compared cardiac injury responses in zebrafish and medaka  two fish species that share similar heart anatomy and common teleost ancestry but differ in regenerative capability. We used single cell transcriptional profiling to create a time resolved comparative cell atlas of injury responses in all major cardiac cell types across both species. With this approach  we identified several key features that distinguish cardiac injury response in the non regenerating medaka heart. By comparing immune responses to injury  we found altered cell recruitment and a distinct pro inflammatory gene program in medaka leukocytes  and an absence of the injury induced interferon response seen in zebrafish. In addition  we found a lack of pro regenerative signals  including nrg1 and retinoic acid  from medaka endothelial and epicardial cells. Finally  we identified alterations in the myocardial structure in medaka  where they lack primordial layer cardiomyocytes and fail to employ a cardioprotective gene program shared by regenerating vertebrates. Our findings reveal notable variation in injury response across nearly all major cardiac cell types in zebrafish and medaka  demonstrating how evolutionary divergence influences the hidden cellular features underpinning regenerative potential in these seemingly similar vertebrates. Overall design: scRNA seq of dissected ventricles from zebrafish and medaka fish before injury  3 days  and 14 xxx post injury", null, null, null, "zebrafish 14dpi rep5", "GSM8173842", null, "source name:Heart Ventricle|tissue:Heart Ventricle|treatment:14 xxx post injury|geo loc name:missing|collection date:missing", "zebrafish 14dpi rep5", "Single cell RNA seq reads were processed with Cellranger from 10X Genomics with the default settings  using GRCz11 v4.3.2 reference Lawson et al.  2020 for zebrafish read alignments and ASM223467v1 for Medaka. Assembly: GRCz11  ASM223467v1 Supplementary files format and content: Tab separated values files and matrix files", "Heart Ventricle", "Cryoinjuries were performed on the ventricle apex of both medaka and zebrafish as described previously Gonz\u00e1lez Rosa et al.  2011. Briefly  0.02% and 0.04% Tricaine MS 222 was used to anesthetize zebrafish and medaka  respectively. Fish were mounted on a moist sponge. The ventricle apex was exposed by making a small thoracic incision using forceps and dissecting scissors. A cryoprobe was constructed as described previously using a 0.5 mm diameter copper wireGonz\u00e1lez Rosa and Mercader  2012. post submersion in liquid nitrogen for at least 2 minutes  the probe was placed in contact with the ventricle apex for exactly 23 seconds. post injury  fish were placed back into freshwater tanks to recover  then transferred back into the fish facility for monitoring.", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer\u2019s specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", "Wild type T\u00fcbingen zebrafish and CAB medaka  aged 6 month 18 month unless otherwise stated  were used for all experiments. All zebrafish and medaka work was performed at University of Utah\u2019s CBRZ zebrafish facility. This study was conducted under the approval of the Office of Institutional Animal Care and Use Committee IACUC no. 20 07013 of the University of Utah\u2019s animal care and use program.", "tissue:Heart Ventricle|treatment:14 xxx post injury", "GSM8173842", "GSM8173842: zebrafish 14dpi rep5; Danio rerio; RNA Seq", "GSM8173842 r1", "GSM8173842", "1", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer's specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP498465", null, "loader:fastq load.py|options:  readTypes=TTBB   read1PairFiles=19730X2 220617 A00421 0450 BHYLWFDSX3 S11 L004 I1 001.fastq.gz   read2PairFiles=19730X2 220617 A00421 0450 BHYLWFDSX3 S11 L004 I2 001.fastq.gz   read3PairFiles=19730X2 220617 A00421 0450 BHYLWFDSX3 S11 L004 R1 001.fastq.gz   read4PairFiles=19730X2 220617 A00421 0450 BHYLWFDSX3 S11 L004 R2 001.fastq.gz", "19730X2_220617_A00421_0450_BHYLWFDSX3_S11_L004_I1_001.fastq.gz 19730X2_220617_A00421_0450_BHYLWFDSX3_S11_L004_I2_001.fastq.gz 19730X2_220617_A00421_0450_BHYLWFDSX3_S11_L004_R1_001.fastq.gz 19730X2_220617_A00421_0450_BHYLWFDSX3_S11_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 74566602396.0, 376599002.0, "GSM8173842 r1", "0:10 1:10 2:28 3:150", "A:20294748919;C:15450598433;G:14469235760;T:16819675865;N:363379", 10, 10, 28, 150, 20294748919, 15450598433, 14469235760, 16819675865, 363379, "SRX24093156", "SRS20882452", "SRA1835934", "Gagnon, Biology, University of Utah", "Gagnon, Biology, University of Utah", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-03-28", "Adult", "Adult", "Heart", "Cardiovascular System"], [31676, "SRR28490921", "SRX24093155", "SRS20882451", "SRP498465", "PRJNA1093008", "Distinct features of the regenerating heart uncovered through comparative single cell profiling", "GSE262689", "Other", "Adult humans respond to heart injury by forming a permanent scar  yet other vertebrates are capable of robust and complete cardiac regeneration. Despite progress towards characterizing the mechanisms of cardiac regeneration in fish and amphibians  the large evolutionary gulf between mammals and regenerating vertebrates complicates deciphering which cellular and molecular features truly enable regeneration. To better define these features  we compared cardiac injury responses in zebrafish and medaka  two fish species that share similar heart anatomy and common teleost ancestry but differ in regenerative capability. We used single cell transcriptional profiling to create a time resolved comparative cell atlas of injury responses in all major cardiac cell types across both species. With this approach  we identified several key features that distinguish cardiac injury response in the non regenerating medaka heart. By comparing immune responses to injury  we found altered cell recruitment and a distinct pro inflammatory gene program in medaka leukocytes  and an absence of the injury induced interferon response seen in zebrafish. In addition  we found a lack of pro regenerative signals  including nrg1 and retinoic acid  from medaka endothelial and epicardial cells. Finally  we identified alterations in the myocardial structure in medaka  where they lack primordial layer cardiomyocytes and fail to employ a cardioprotective gene program shared by regenerating vertebrates. Our findings reveal notable variation in injury response across nearly all major cardiac cell types in zebrafish and medaka  demonstrating how evolutionary divergence influences the hidden cellular features underpinning regenerative potential in these seemingly similar vertebrates. Overall design: scRNA seq of dissected ventricles from zebrafish and medaka fish before injury  3 days  and 14 xxx post injury", null, null, null, "zebrafish 14dpi rep4", "GSM8173841", null, "source name:Heart Ventricle|tissue:Heart Ventricle|treatment:14 xxx post injury|geo loc name:missing|collection date:missing", "zebrafish 14dpi rep4", "Single cell RNA seq reads were processed with Cellranger from 10X Genomics with the default settings  using GRCz11 v4.3.2 reference Lawson et al.  2020 for zebrafish read alignments and ASM223467v1 for Medaka. Assembly: GRCz11  ASM223467v1 Supplementary files format and content: Tab separated values files and matrix files", "Heart Ventricle", "Cryoinjuries were performed on the ventricle apex of both medaka and zebrafish as described previously Gonz\u00e1lez Rosa et al.  2011. Briefly  0.02% and 0.04% Tricaine MS 222 was used to anesthetize zebrafish and medaka  respectively. Fish were mounted on a moist sponge. The ventricle apex was exposed by making a small thoracic incision using forceps and dissecting scissors. A cryoprobe was constructed as described previously using a 0.5 mm diameter copper wireGonz\u00e1lez Rosa and Mercader  2012. post submersion in liquid nitrogen for at least 2 minutes  the probe was placed in contact with the ventricle apex for exactly 23 seconds. post injury  fish were placed back into freshwater tanks to recover  then transferred back into the fish facility for monitoring.", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer\u2019s specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", "Wild type T\u00fcbingen zebrafish and CAB medaka  aged 6 month 18 month unless otherwise stated  were used for all experiments. All zebrafish and medaka work was performed at University of Utah\u2019s CBRZ zebrafish facility. This study was conducted under the approval of the Office of Institutional Animal Care and Use Committee IACUC no. 20 07013 of the University of Utah\u2019s animal care and use program.", "tissue:Heart Ventricle|treatment:14 xxx post injury", "GSM8173841", "GSM8173841: zebrafish 14dpi rep4; Danio rerio; RNA Seq", "GSM8173841 r1", "GSM8173841", "1", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer's specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP498465", null, "loader:fastq load.py|options:  readTypes=TTBB   read1PairFiles=19730X1 220617 A00421 0450 BHYLWFDSX3 S10 L004 I1 001.fastq.gz   read2PairFiles=19730X1 220617 A00421 0450 BHYLWFDSX3 S10 L004 I2 001.fastq.gz   read3PairFiles=19730X1 220617 A00421 0450 BHYLWFDSX3 S10 L004 R1 001.fastq.gz   read4PairFiles=19730X1 220617 A00421 0450 BHYLWFDSX3 S10 L004 R2 001.fastq.gz", "19730X1_220617_A00421_0450_BHYLWFDSX3_S10_L004_I1_001.fastq.gz 19730X1_220617_A00421_0450_BHYLWFDSX3_S10_L004_I2_001.fastq.gz 19730X1_220617_A00421_0450_BHYLWFDSX3_S10_L004_R1_001.fastq.gz 19730X1_220617_A00421_0450_BHYLWFDSX3_S10_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 76061576646.0, 384149377.0, "GSM8173841 r1", "0:10 1:10 2:28 3:150", "A:19982364126;C:15578867054;G:15092653159;T:17724332310;N:372457", 10, 10, 28, 150, 19982364126, 15578867054, 15092653159, 17724332310, 372457, "SRX24093155", "SRS20882451", "SRA1835934", "Gagnon, Biology, University of Utah", "Gagnon, Biology, University of Utah", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-03-28", "Adult", "Adult", "Heart", "Cardiovascular System"], [31677, "SRR28490922", "SRX24093154", "SRS20882450", "SRP498465", "PRJNA1093008", "Distinct features of the regenerating heart uncovered through comparative single cell profiling", "GSE262689", "Other", "Adult humans respond to heart injury by forming a permanent scar  yet other vertebrates are capable of robust and complete cardiac regeneration. Despite progress towards characterizing the mechanisms of cardiac regeneration in fish and amphibians  the large evolutionary gulf between mammals and regenerating vertebrates complicates deciphering which cellular and molecular features truly enable regeneration. To better define these features  we compared cardiac injury responses in zebrafish and medaka  two fish species that share similar heart anatomy and common teleost ancestry but differ in regenerative capability. We used single cell transcriptional profiling to create a time resolved comparative cell atlas of injury responses in all major cardiac cell types across both species. With this approach  we identified several key features that distinguish cardiac injury response in the non regenerating medaka heart. By comparing immune responses to injury  we found altered cell recruitment and a distinct pro inflammatory gene program in medaka leukocytes  and an absence of the injury induced interferon response seen in zebrafish. In addition  we found a lack of pro regenerative signals  including nrg1 and retinoic acid  from medaka endothelial and epicardial cells. Finally  we identified alterations in the myocardial structure in medaka  where they lack primordial layer cardiomyocytes and fail to employ a cardioprotective gene program shared by regenerating vertebrates. Our findings reveal notable variation in injury response across nearly all major cardiac cell types in zebrafish and medaka  demonstrating how evolutionary divergence influences the hidden cellular features underpinning regenerative potential in these seemingly similar vertebrates. Overall design: scRNA seq of dissected ventricles from zebrafish and medaka fish before injury  3 days  and 14 xxx post injury", null, null, null, "zebrafish 14dpi rep3", "GSM8173840", null, "source name:Heart Ventricle|tissue:Heart Ventricle|treatment:14 xxx post injury|geo loc name:missing|collection date:missing", "zebrafish 14dpi rep3", "Single cell RNA seq reads were processed with Cellranger from 10X Genomics with the default settings  using GRCz11 v4.3.2 reference Lawson et al.  2020 for zebrafish read alignments and ASM223467v1 for Medaka. Assembly: GRCz11  ASM223467v1 Supplementary files format and content: Tab separated values files and matrix files", "Heart Ventricle", "Cryoinjuries were performed on the ventricle apex of both medaka and zebrafish as described previously Gonz\u00e1lez Rosa et al.  2011. Briefly  0.02% and 0.04% Tricaine MS 222 was used to anesthetize zebrafish and medaka  respectively. Fish were mounted on a moist sponge. The ventricle apex was exposed by making a small thoracic incision using forceps and dissecting scissors. A cryoprobe was constructed as described previously using a 0.5 mm diameter copper wireGonz\u00e1lez Rosa and Mercader  2012. post submersion in liquid nitrogen for at least 2 minutes  the probe was placed in contact with the ventricle apex for exactly 23 seconds. post injury  fish were placed back into freshwater tanks to recover  then transferred back into the fish facility for monitoring.", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer\u2019s specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", "Wild type T\u00fcbingen zebrafish and CAB medaka  aged 6 month 18 month unless otherwise stated  were used for all experiments. All zebrafish and medaka work was performed at University of Utah\u2019s CBRZ zebrafish facility. This study was conducted under the approval of the Office of Institutional Animal Care and Use Committee IACUC no. 20 07013 of the University of Utah\u2019s animal care and use program.", "tissue:Heart Ventricle|treatment:14 xxx post injury", "GSM8173840", "GSM8173840: zebrafish 14dpi rep3; Danio rerio; RNA Seq", "GSM8173840 r1", "GSM8173840", "1", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer's specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP498465", null, "loader:fastq load.py|options:  readTypes=TTBB   read1PairFiles=19495X3 220201 A00421 0414 BH7MJYDSX3 S9 L004 I1 001.fastq.gz   read2PairFiles=19495X3 220201 A00421 0414 BH7MJYDSX3 S9 L004 I2 001.fastq.gz   read3PairFiles=19495X3 220201 A00421 0414 BH7MJYDSX3 S9 L004 R1 001.fastq.gz   read4PairFiles=19495X3 220201 A00421 0414 BH7MJYDSX3 S9 L004 R2 001.fastq.gz", "19495X3_220201_A00421_0414_BH7MJYDSX3_S9_L004_I1_001.fastq.gz 19495X3_220201_A00421_0414_BH7MJYDSX3_S9_L004_I2_001.fastq.gz 19495X3_220201_A00421_0414_BH7MJYDSX3_S9_L004_R1_001.fastq.gz 19495X3_220201_A00421_0414_BH7MJYDSX3_S9_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 94197045690.0, 475742655.0, "GSM8173840 r1", "0:10 1:10 2:28 3:150", "A:26800852330;C:18784742692;G:18161750085;T:20932990353;N:1857130", 10, 10, 28, 150, 26800852330, 18784742692, 18161750085, 20932990353, 1857130, "SRX24093154", "SRS20882450", "SRA1835934", "Gagnon, Biology, University of Utah", "Gagnon, Biology, University of Utah", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-03-28", "Adult", "Adult", "Heart", "Cardiovascular System"], [31678, "SRR28490923", "SRX24093153", "SRS20882449", "SRP498465", "PRJNA1093008", "Distinct features of the regenerating heart uncovered through comparative single cell profiling", "GSE262689", "Other", "Adult humans respond to heart injury by forming a permanent scar  yet other vertebrates are capable of robust and complete cardiac regeneration. Despite progress towards characterizing the mechanisms of cardiac regeneration in fish and amphibians  the large evolutionary gulf between mammals and regenerating vertebrates complicates deciphering which cellular and molecular features truly enable regeneration. To better define these features  we compared cardiac injury responses in zebrafish and medaka  two fish species that share similar heart anatomy and common teleost ancestry but differ in regenerative capability. We used single cell transcriptional profiling to create a time resolved comparative cell atlas of injury responses in all major cardiac cell types across both species. With this approach  we identified several key features that distinguish cardiac injury response in the non regenerating medaka heart. By comparing immune responses to injury  we found altered cell recruitment and a distinct pro inflammatory gene program in medaka leukocytes  and an absence of the injury induced interferon response seen in zebrafish. In addition  we found a lack of pro regenerative signals  including nrg1 and retinoic acid  from medaka endothelial and epicardial cells. Finally  we identified alterations in the myocardial structure in medaka  where they lack primordial layer cardiomyocytes and fail to employ a cardioprotective gene program shared by regenerating vertebrates. Our findings reveal notable variation in injury response across nearly all major cardiac cell types in zebrafish and medaka  demonstrating how evolutionary divergence influences the hidden cellular features underpinning regenerative potential in these seemingly similar vertebrates. Overall design: scRNA seq of dissected ventricles from zebrafish and medaka fish before injury  3 days  and 14 xxx post injury", null, null, null, "zebrafish 14dpi rep2", "GSM8173839", null, "source name:Heart Ventricle|tissue:Heart Ventricle|treatment:14 xxx post injury|geo loc name:missing|collection date:missing", "zebrafish 14dpi rep2", "Single cell RNA seq reads were processed with Cellranger from 10X Genomics with the default settings  using GRCz11 v4.3.2 reference Lawson et al.  2020 for zebrafish read alignments and ASM223467v1 for Medaka. Assembly: GRCz11  ASM223467v1 Supplementary files format and content: Tab separated values files and matrix files", "Heart Ventricle", "Cryoinjuries were performed on the ventricle apex of both medaka and zebrafish as described previously Gonz\u00e1lez Rosa et al.  2011. Briefly  0.02% and 0.04% Tricaine MS 222 was used to anesthetize zebrafish and medaka  respectively. Fish were mounted on a moist sponge. The ventricle apex was exposed by making a small thoracic incision using forceps and dissecting scissors. A cryoprobe was constructed as described previously using a 0.5 mm diameter copper wireGonz\u00e1lez Rosa and Mercader  2012. post submersion in liquid nitrogen for at least 2 minutes  the probe was placed in contact with the ventricle apex for exactly 23 seconds. post injury  fish were placed back into freshwater tanks to recover  then transferred back into the fish facility for monitoring.", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer\u2019s specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", "Wild type T\u00fcbingen zebrafish and CAB medaka  aged 6 month 18 month unless otherwise stated  were used for all experiments. All zebrafish and medaka work was performed at University of Utah\u2019s CBRZ zebrafish facility. This study was conducted under the approval of the Office of Institutional Animal Care and Use Committee IACUC no. 20 07013 of the University of Utah\u2019s animal care and use program.", "tissue:Heart Ventricle|treatment:14 xxx post injury", "GSM8173839", "GSM8173839: zebrafish 14dpi rep2; Danio rerio; RNA Seq", "GSM8173839 r1", "GSM8173839", "1", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer's specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP498465", null, "loader:fastq load.py|options:  readTypes=TTBB   read1PairFiles=19495X2 220201 A00421 0414 BH7MJYDSX3 S8 L004 I1 001.fastq.gz   read2PairFiles=19495X2 220201 A00421 0414 BH7MJYDSX3 S8 L004 I2 001.fastq.gz   read3PairFiles=19495X2 220201 A00421 0414 BH7MJYDSX3 S8 L004 R1 001.fastq.gz   read4PairFiles=19495X2 220201 A00421 0414 BH7MJYDSX3 S8 L004 R2 001.fastq.gz", "19495X2_220201_A00421_0414_BH7MJYDSX3_S8_L004_I1_001.fastq.gz 19495X2_220201_A00421_0414_BH7MJYDSX3_S8_L004_I2_001.fastq.gz 19495X2_220201_A00421_0414_BH7MJYDSX3_S8_L004_R1_001.fastq.gz 19495X2_220201_A00421_0414_BH7MJYDSX3_S8_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 96751760292.0, 488645254.0, "GSM8173839 r1", "0:10 1:10 2:28 3:150", "A:26977933874;C:19374971991;G:18847897958;T:21776150237;N:1901152", 10, 10, 28, 150, 26977933874, 19374971991, 18847897958, 21776150237, 1901152, "SRX24093153", "SRS20882449", "SRA1835934", "Gagnon, Biology, University of Utah", "Gagnon, Biology, University of Utah", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-03-28", "Adult", "Adult", "Heart", "Cardiovascular System"], [31679, "SRR28490924", "SRX24093152", "SRS20882448", "SRP498465", "PRJNA1093008", "Distinct features of the regenerating heart uncovered through comparative single cell profiling", "GSE262689", "Other", "Adult humans respond to heart injury by forming a permanent scar  yet other vertebrates are capable of robust and complete cardiac regeneration. Despite progress towards characterizing the mechanisms of cardiac regeneration in fish and amphibians  the large evolutionary gulf between mammals and regenerating vertebrates complicates deciphering which cellular and molecular features truly enable regeneration. To better define these features  we compared cardiac injury responses in zebrafish and medaka  two fish species that share similar heart anatomy and common teleost ancestry but differ in regenerative capability. We used single cell transcriptional profiling to create a time resolved comparative cell atlas of injury responses in all major cardiac cell types across both species. With this approach  we identified several key features that distinguish cardiac injury response in the non regenerating medaka heart. By comparing immune responses to injury  we found altered cell recruitment and a distinct pro inflammatory gene program in medaka leukocytes  and an absence of the injury induced interferon response seen in zebrafish. In addition  we found a lack of pro regenerative signals  including nrg1 and retinoic acid  from medaka endothelial and epicardial cells. Finally  we identified alterations in the myocardial structure in medaka  where they lack primordial layer cardiomyocytes and fail to employ a cardioprotective gene program shared by regenerating vertebrates. Our findings reveal notable variation in injury response across nearly all major cardiac cell types in zebrafish and medaka  demonstrating how evolutionary divergence influences the hidden cellular features underpinning regenerative potential in these seemingly similar vertebrates. Overall design: scRNA seq of dissected ventricles from zebrafish and medaka fish before injury  3 days  and 14 xxx post injury", null, null, null, "zebrafish 14dpi rep1", "GSM8173838", null, "source name:Heart Ventricle|tissue:Heart Ventricle|treatment:14 xxx post injury|geo loc name:missing|collection date:missing", "zebrafish 14dpi rep1", "Single cell RNA seq reads were processed with Cellranger from 10X Genomics with the default settings  using GRCz11 v4.3.2 reference Lawson et al.  2020 for zebrafish read alignments and ASM223467v1 for Medaka. Assembly: GRCz11  ASM223467v1 Supplementary files format and content: Tab separated values files and matrix files", "Heart Ventricle", "Cryoinjuries were performed on the ventricle apex of both medaka and zebrafish as described previously Gonz\u00e1lez Rosa et al.  2011. Briefly  0.02% and 0.04% Tricaine MS 222 was used to anesthetize zebrafish and medaka  respectively. Fish were mounted on a moist sponge. The ventricle apex was exposed by making a small thoracic incision using forceps and dissecting scissors. A cryoprobe was constructed as described previously using a 0.5 mm diameter copper wireGonz\u00e1lez Rosa and Mercader  2012. post submersion in liquid nitrogen for at least 2 minutes  the probe was placed in contact with the ventricle apex for exactly 23 seconds. post injury  fish were placed back into freshwater tanks to recover  then transferred back into the fish facility for monitoring.", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer\u2019s specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", "Wild type T\u00fcbingen zebrafish and CAB medaka  aged 6 month 18 month unless otherwise stated  were used for all experiments. All zebrafish and medaka work was performed at University of Utah\u2019s CBRZ zebrafish facility. This study was conducted under the approval of the Office of Institutional Animal Care and Use Committee IACUC no. 20 07013 of the University of Utah\u2019s animal care and use program.", "tissue:Heart Ventricle|treatment:14 xxx post injury", "GSM8173838", "GSM8173838: zebrafish 14dpi rep1; Danio rerio; RNA Seq", "GSM8173838 r1", "GSM8173838", "1", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer's specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP498465", null, "loader:fastq load.py|options:  readTypes=TTBB   read1PairFiles=19495X1 220201 A00421 0414 BH7MJYDSX3 S7 L004 I1 001.fastq.gz   read2PairFiles=19495X1 220201 A00421 0414 BH7MJYDSX3 S7 L004 I2 001.fastq.gz   read3PairFiles=19495X1 220201 A00421 0414 BH7MJYDSX3 S7 L004 R1 001.fastq.gz   read4PairFiles=19495X1 220201 A00421 0414 BH7MJYDSX3 S7 L004 R2 001.fastq.gz", "19495X1_220201_A00421_0414_BH7MJYDSX3_S7_L004_I1_001.fastq.gz 19495X1_220201_A00421_0414_BH7MJYDSX3_S7_L004_I2_001.fastq.gz 19495X1_220201_A00421_0414_BH7MJYDSX3_S7_L004_R1_001.fastq.gz 19495X1_220201_A00421_0414_BH7MJYDSX3_S7_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 90380046042.0, 456464879.0, "GSM8173838 r1", "0:10 1:10 2:28 3:150", "A:25630924753;C:18477012718;G:17083347155;T:20057683089;N:1780747", 10, 10, 28, 150, 25630924753, 18477012718, 17083347155, 20057683089, 1780747, "SRX24093152", "SRS20882448", "SRA1835934", "Gagnon, Biology, University of Utah", "Gagnon, Biology, University of Utah", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-03-28", "Adult", "Adult", "Heart", "Cardiovascular System"], [31680, "SRR28490925", "SRX24093151", "SRS20882447", "SRP498465", "PRJNA1093008", "Distinct features of the regenerating heart uncovered through comparative single cell profiling", "GSE262689", "Other", "Adult humans respond to heart injury by forming a permanent scar  yet other vertebrates are capable of robust and complete cardiac regeneration. Despite progress towards characterizing the mechanisms of cardiac regeneration in fish and amphibians  the large evolutionary gulf between mammals and regenerating vertebrates complicates deciphering which cellular and molecular features truly enable regeneration. To better define these features  we compared cardiac injury responses in zebrafish and medaka  two fish species that share similar heart anatomy and common teleost ancestry but differ in regenerative capability. We used single cell transcriptional profiling to create a time resolved comparative cell atlas of injury responses in all major cardiac cell types across both species. With this approach  we identified several key features that distinguish cardiac injury response in the non regenerating medaka heart. By comparing immune responses to injury  we found altered cell recruitment and a distinct pro inflammatory gene program in medaka leukocytes  and an absence of the injury induced interferon response seen in zebrafish. In addition  we found a lack of pro regenerative signals  including nrg1 and retinoic acid  from medaka endothelial and epicardial cells. Finally  we identified alterations in the myocardial structure in medaka  where they lack primordial layer cardiomyocytes and fail to employ a cardioprotective gene program shared by regenerating vertebrates. Our findings reveal notable variation in injury response across nearly all major cardiac cell types in zebrafish and medaka  demonstrating how evolutionary divergence influences the hidden cellular features underpinning regenerative potential in these seemingly similar vertebrates. Overall design: scRNA seq of dissected ventricles from zebrafish and medaka fish before injury  3 days  and 14 xxx post injury", null, null, null, "zebrafish 3dpi rep3", "GSM8173837", null, "source name:Heart Ventricle|tissue:Heart Ventricle|treatment:3 xxx post injury|geo loc name:missing|collection date:missing", "zebrafish 3dpi rep3", "Single cell RNA seq reads were processed with Cellranger from 10X Genomics with the default settings  using GRCz11 v4.3.2 reference Lawson et al.  2020 for zebrafish read alignments and ASM223467v1 for Medaka. Assembly: GRCz11  ASM223467v1 Supplementary files format and content: Tab separated values files and matrix files", "Heart Ventricle", "Cryoinjuries were performed on the ventricle apex of both medaka and zebrafish as described previously Gonz\u00e1lez Rosa et al.  2011. Briefly  0.02% and 0.04% Tricaine MS 222 was used to anesthetize zebrafish and medaka  respectively. Fish were mounted on a moist sponge. The ventricle apex was exposed by making a small thoracic incision using forceps and dissecting scissors. A cryoprobe was constructed as described previously using a 0.5 mm diameter copper wireGonz\u00e1lez Rosa and Mercader  2012. post submersion in liquid nitrogen for at least 2 minutes  the probe was placed in contact with the ventricle apex for exactly 23 seconds. post injury  fish were placed back into freshwater tanks to recover  then transferred back into the fish facility for monitoring.", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer\u2019s specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", "Wild type T\u00fcbingen zebrafish and CAB medaka  aged 6 month 18 month unless otherwise stated  were used for all experiments. All zebrafish and medaka work was performed at University of Utah\u2019s CBRZ zebrafish facility. This study was conducted under the approval of the Office of Institutional Animal Care and Use Committee IACUC no. 20 07013 of the University of Utah\u2019s animal care and use program.", "tissue:Heart Ventricle|treatment:3 xxx post injury", "GSM8173837", "GSM8173837: zebrafish 3dpi rep3; Danio rerio; RNA Seq", "GSM8173837 r1", "GSM8173837", "1", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer's specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP498465", null, "loader:fastq load.py|options:  readTypes=TTBB   read1PairFiles=19630X6 220407 A00421 0430 AHL27JDSX3 S6 L004 I1 001.fastq.gz   read2PairFiles=19630X6 220407 A00421 0430 AHL27JDSX3 S6 L004 I2 001.fastq.gz   read3PairFiles=19630X6 220407 A00421 0430 AHL27JDSX3 S6 L004 R1 001.fastq.gz   read4PairFiles=19630X6 220407 A00421 0430 AHL27JDSX3 S6 L004 R2 001.fastq.gz", "19630X6_220407_A00421_0430_AHL27JDSX3_S6_L004_I1_001.fastq.gz 19630X6_220407_A00421_0430_AHL27JDSX3_S6_L004_I2_001.fastq.gz 19630X6_220407_A00421_0430_AHL27JDSX3_S6_L004_R1_001.fastq.gz 19630X6_220407_A00421_0430_AHL27JDSX3_S6_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 127733838606.0, 645120397.0, "GSM8173837 r1", "0:10 1:10 2:28 3:150", "A:33907907612;C:25406584124;G:25352400361;T:30160949616;N:3588953", 10, 10, 28, 150, 33907907612, 25406584124, 25352400361, 30160949616, 3588953, "SRX24093151", "SRS20882447", "SRA1835934", "Gagnon, Biology, University of Utah", "Gagnon, Biology, University of Utah", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-03-28", "Adult", "Adult", "Heart", "Cardiovascular System"], [31681, "SRR28490926", "SRX24093150", "SRS20882446", "SRP498465", "PRJNA1093008", "Distinct features of the regenerating heart uncovered through comparative single cell profiling", "GSE262689", "Other", "Adult humans respond to heart injury by forming a permanent scar  yet other vertebrates are capable of robust and complete cardiac regeneration. Despite progress towards characterizing the mechanisms of cardiac regeneration in fish and amphibians  the large evolutionary gulf between mammals and regenerating vertebrates complicates deciphering which cellular and molecular features truly enable regeneration. To better define these features  we compared cardiac injury responses in zebrafish and medaka  two fish species that share similar heart anatomy and common teleost ancestry but differ in regenerative capability. We used single cell transcriptional profiling to create a time resolved comparative cell atlas of injury responses in all major cardiac cell types across both species. With this approach  we identified several key features that distinguish cardiac injury response in the non regenerating medaka heart. By comparing immune responses to injury  we found altered cell recruitment and a distinct pro inflammatory gene program in medaka leukocytes  and an absence of the injury induced interferon response seen in zebrafish. In addition  we found a lack of pro regenerative signals  including nrg1 and retinoic acid  from medaka endothelial and epicardial cells. Finally  we identified alterations in the myocardial structure in medaka  where they lack primordial layer cardiomyocytes and fail to employ a cardioprotective gene program shared by regenerating vertebrates. Our findings reveal notable variation in injury response across nearly all major cardiac cell types in zebrafish and medaka  demonstrating how evolutionary divergence influences the hidden cellular features underpinning regenerative potential in these seemingly similar vertebrates. Overall design: scRNA seq of dissected ventricles from zebrafish and medaka fish before injury  3 days  and 14 xxx post injury", null, null, null, "zebrafish 3dpi rep2", "GSM8173836", null, "source name:Heart Ventricle|tissue:Heart Ventricle|treatment:3 xxx post injury|geo loc name:missing|collection date:missing", "zebrafish 3dpi rep2", "Single cell RNA seq reads were processed with Cellranger from 10X Genomics with the default settings  using GRCz11 v4.3.2 reference Lawson et al.  2020 for zebrafish read alignments and ASM223467v1 for Medaka. Assembly: GRCz11  ASM223467v1 Supplementary files format and content: Tab separated values files and matrix files", "Heart Ventricle", "Cryoinjuries were performed on the ventricle apex of both medaka and zebrafish as described previously Gonz\u00e1lez Rosa et al.  2011. Briefly  0.02% and 0.04% Tricaine MS 222 was used to anesthetize zebrafish and medaka  respectively. Fish were mounted on a moist sponge. The ventricle apex was exposed by making a small thoracic incision using forceps and dissecting scissors. A cryoprobe was constructed as described previously using a 0.5 mm diameter copper wireGonz\u00e1lez Rosa and Mercader  2012. post submersion in liquid nitrogen for at least 2 minutes  the probe was placed in contact with the ventricle apex for exactly 23 seconds. post injury  fish were placed back into freshwater tanks to recover  then transferred back into the fish facility for monitoring.", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer\u2019s specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", "Wild type T\u00fcbingen zebrafish and CAB medaka  aged 6 month 18 month unless otherwise stated  were used for all experiments. All zebrafish and medaka work was performed at University of Utah\u2019s CBRZ zebrafish facility. This study was conducted under the approval of the Office of Institutional Animal Care and Use Committee IACUC no. 20 07013 of the University of Utah\u2019s animal care and use program.", "tissue:Heart Ventricle|treatment:3 xxx post injury", "GSM8173836", "GSM8173836: zebrafish 3dpi rep2; Danio rerio; RNA Seq", "GSM8173836 r1", "GSM8173836", "1", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer's specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. 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Despite progress towards characterizing the mechanisms of cardiac regeneration in fish and amphibians  the large evolutionary gulf between mammals and regenerating vertebrates complicates deciphering which cellular and molecular features truly enable regeneration. To better define these features  we compared cardiac injury responses in zebrafish and medaka  two fish species that share similar heart anatomy and common teleost ancestry but differ in regenerative capability. We used single cell transcriptional profiling to create a time resolved comparative cell atlas of injury responses in all major cardiac cell types across both species. With this approach  we identified several key features that distinguish cardiac injury response in the non regenerating medaka heart. By comparing immune responses to injury  we found altered cell recruitment and a distinct pro inflammatory gene program in medaka leukocytes  and an absence of the injury induced interferon response seen in zebrafish. In addition  we found a lack of pro regenerative signals  including nrg1 and retinoic acid  from medaka endothelial and epicardial cells. Finally  we identified alterations in the myocardial structure in medaka  where they lack primordial layer cardiomyocytes and fail to employ a cardioprotective gene program shared by regenerating vertebrates. Our findings reveal notable variation in injury response across nearly all major cardiac cell types in zebrafish and medaka  demonstrating how evolutionary divergence influences the hidden cellular features underpinning regenerative potential in these seemingly similar vertebrates. Overall design: scRNA seq of dissected ventricles from zebrafish and medaka fish before injury  3 days  and 14 xxx post injury", null, null, null, "zebrafish 3dpi rep1", "GSM8173835", null, "source name:Heart Ventricle|tissue:Heart Ventricle|treatment:3 xxx post injury|geo loc name:missing|collection date:missing", "zebrafish 3dpi rep1", "Single cell RNA seq reads were processed with Cellranger from 10X Genomics with the default settings  using GRCz11 v4.3.2 reference Lawson et al.  2020 for zebrafish read alignments and ASM223467v1 for Medaka. Assembly: GRCz11  ASM223467v1 Supplementary files format and content: Tab separated values files and matrix files", "Heart Ventricle", "Cryoinjuries were performed on the ventricle apex of both medaka and zebrafish as described previously Gonz\u00e1lez Rosa et al.  2011. Briefly  0.02% and 0.04% Tricaine MS 222 was used to anesthetize zebrafish and medaka  respectively. Fish were mounted on a moist sponge. The ventricle apex was exposed by making a small thoracic incision using forceps and dissecting scissors. A cryoprobe was constructed as described previously using a 0.5 mm diameter copper wireGonz\u00e1lez Rosa and Mercader  2012. post submersion in liquid nitrogen for at least 2 minutes  the probe was placed in contact with the ventricle apex for exactly 23 seconds. post injury  fish were placed back into freshwater tanks to recover  then transferred back into the fish facility for monitoring.", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer\u2019s specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", "Wild type T\u00fcbingen zebrafish and CAB medaka  aged 6 month 18 month unless otherwise stated  were used for all experiments. All zebrafish and medaka work was performed at University of Utah\u2019s CBRZ zebrafish facility. This study was conducted under the approval of the Office of Institutional Animal Care and Use Committee IACUC no. 20 07013 of the University of Utah\u2019s animal care and use program.", "tissue:Heart Ventricle|treatment:3 xxx post injury", "GSM8173835", "GSM8173835: zebrafish 3dpi rep1; Danio rerio; RNA Seq", "GSM8173835 r1", "GSM8173835", "1", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer's specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP498465", null, "loader:fastq load.py|options:  readTypes=TTBB   read1PairFiles=19630X4 220407 A00421 0430 AHL27JDSX3 S4 L004 I1 001.fastq.gz   read2PairFiles=19630X4 220407 A00421 0430 AHL27JDSX3 S4 L004 I2 001.fastq.gz   read3PairFiles=19630X4 220407 A00421 0430 AHL27JDSX3 S4 L004 R1 001.fastq.gz   read4PairFiles=19630X4 220407 A00421 0430 AHL27JDSX3 S4 L004 R2 001.fastq.gz", "19630X4_220407_A00421_0430_AHL27JDSX3_S4_L004_I1_001.fastq.gz 19630X4_220407_A00421_0430_AHL27JDSX3_S4_L004_I2_001.fastq.gz 19630X4_220407_A00421_0430_AHL27JDSX3_S4_L004_R1_001.fastq.gz 19630X4_220407_A00421_0430_AHL27JDSX3_S4_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 73276792776.0, 370084812.0, "GSM8173835 r1", "0:10 1:10 2:28 3:150", "A:19369278475;C:14629225553;G:14664402682;T:17210132889;N:2056937", 10, 10, 28, 150, 19369278475, 14629225553, 14664402682, 17210132889, 2056937, "SRX24093149", "SRS20882445", "SRA1835934", "Gagnon, Biology, University of Utah", "Gagnon, Biology, University of Utah", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-03-28", "Adult", "Adult", "Heart", "Cardiovascular System"], [31683, "SRR28490928", "SRX24093148", "SRS20882444", "SRP498465", "PRJNA1093008", "Distinct features of the regenerating heart uncovered through comparative single cell profiling", "GSE262689", "Other", "Adult humans respond to heart injury by forming a permanent scar  yet other vertebrates are capable of robust and complete cardiac regeneration. Despite progress towards characterizing the mechanisms of cardiac regeneration in fish and amphibians  the large evolutionary gulf between mammals and regenerating vertebrates complicates deciphering which cellular and molecular features truly enable regeneration. To better define these features  we compared cardiac injury responses in zebrafish and medaka  two fish species that share similar heart anatomy and common teleost ancestry but differ in regenerative capability. We used single cell transcriptional profiling to create a time resolved comparative cell atlas of injury responses in all major cardiac cell types across both species. With this approach  we identified several key features that distinguish cardiac injury response in the non regenerating medaka heart. By comparing immune responses to injury  we found altered cell recruitment and a distinct pro inflammatory gene program in medaka leukocytes  and an absence of the injury induced interferon response seen in zebrafish. In addition  we found a lack of pro regenerative signals  including nrg1 and retinoic acid  from medaka endothelial and epicardial cells. Finally  we identified alterations in the myocardial structure in medaka  where they lack primordial layer cardiomyocytes and fail to employ a cardioprotective gene program shared by regenerating vertebrates. Our findings reveal notable variation in injury response across nearly all major cardiac cell types in zebrafish and medaka  demonstrating how evolutionary divergence influences the hidden cellular features underpinning regenerative potential in these seemingly similar vertebrates. Overall design: scRNA seq of dissected ventricles from zebrafish and medaka fish before injury  3 days  and 14 xxx post injury", null, null, null, "zebrafish uninjured rep4", "GSM8173834", null, "source name:Heart Ventricle|tissue:Heart Ventricle|treatment:Uninjured|geo loc name:missing|collection date:missing", "zebrafish uninjured rep4", "Single cell RNA seq reads were processed with Cellranger from 10X Genomics with the default settings  using GRCz11 v4.3.2 reference Lawson et al.  2020 for zebrafish read alignments and ASM223467v1 for Medaka. Assembly: GRCz11  ASM223467v1 Supplementary files format and content: Tab separated values files and matrix files", "Heart Ventricle", "Cryoinjuries were performed on the ventricle apex of both medaka and zebrafish as described previously Gonz\u00e1lez Rosa et al.  2011. Briefly  0.02% and 0.04% Tricaine MS 222 was used to anesthetize zebrafish and medaka  respectively. Fish were mounted on a moist sponge. The ventricle apex was exposed by making a small thoracic incision using forceps and dissecting scissors. A cryoprobe was constructed as described previously using a 0.5 mm diameter copper wireGonz\u00e1lez Rosa and Mercader  2012. post submersion in liquid nitrogen for at least 2 minutes  the probe was placed in contact with the ventricle apex for exactly 23 seconds. post injury  fish were placed back into freshwater tanks to recover  then transferred back into the fish facility for monitoring.", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer\u2019s specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", "Wild type T\u00fcbingen zebrafish and CAB medaka  aged 6 month 18 month unless otherwise stated  were used for all experiments. All zebrafish and medaka work was performed at University of Utah\u2019s CBRZ zebrafish facility. This study was conducted under the approval of the Office of Institutional Animal Care and Use Committee IACUC no. 20 07013 of the University of Utah\u2019s animal care and use program.", "tissue:Heart Ventricle|treatment:Uninjured", "GSM8173834", "GSM8173834: zebrafish uninjured rep4; Danio rerio; RNA Seq", "GSM8173834 r1", "GSM8173834", "1", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer's specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP498465", null, "loader:fastq load.py|options:  readTypes=TTBB   read1PairFiles=19226X2 211001 A00421 0374 BHMGTFDSX2 S2 L004 I1 001.fastq.gz   read2PairFiles=19226X2 211001 A00421 0374 BHMGTFDSX2 S2 L004 I2 001.fastq.gz   read3PairFiles=19226X2 211001 A00421 0374 BHMGTFDSX2 S2 L004 R1 001.fastq.gz   read4PairFiles=19226X2 211001 A00421 0374 BHMGTFDSX2 S2 L004 R2 001.fastq.gz", "19226X2_211001_A00421_0374_BHMGTFDSX2_S2_L004_I1_001.fastq.gz 19226X2_211001_A00421_0374_BHMGTFDSX2_S2_L004_I2_001.fastq.gz 19226X2_211001_A00421_0374_BHMGTFDSX2_S2_L004_R1_001.fastq.gz 19226X2_211001_A00421_0374_BHMGTFDSX2_S2_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 88217468658.0, 445542771.0, "GSM8173834 r1", "0:10 1:10 2:28 3:150", "A:23594347570;C:18139448524;G:18958392712;T:18613143461;N:1280971", 10, 10, 28, 150, 23594347570, 18139448524, 18958392712, 18613143461, 1280971, "SRX24093148", "SRS20882444", "SRA1835934", "Gagnon, Biology, University of Utah", "Gagnon, Biology, University of Utah", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-03-28", "Adult", "Adult", "Heart", "Cardiovascular System"], [31684, "SRR28490929", "SRX24093147", "SRS20882443", "SRP498465", "PRJNA1093008", "Distinct features of the regenerating heart uncovered through comparative single cell profiling", "GSE262689", "Other", "Adult humans respond to heart injury by forming a permanent scar  yet other vertebrates are capable of robust and complete cardiac regeneration. Despite progress towards characterizing the mechanisms of cardiac regeneration in fish and amphibians  the large evolutionary gulf between mammals and regenerating vertebrates complicates deciphering which cellular and molecular features truly enable regeneration. To better define these features  we compared cardiac injury responses in zebrafish and medaka  two fish species that share similar heart anatomy and common teleost ancestry but differ in regenerative capability. We used single cell transcriptional profiling to create a time resolved comparative cell atlas of injury responses in all major cardiac cell types across both species. With this approach  we identified several key features that distinguish cardiac injury response in the non regenerating medaka heart. By comparing immune responses to injury  we found altered cell recruitment and a distinct pro inflammatory gene program in medaka leukocytes  and an absence of the injury induced interferon response seen in zebrafish. In addition  we found a lack of pro regenerative signals  including nrg1 and retinoic acid  from medaka endothelial and epicardial cells. Finally  we identified alterations in the myocardial structure in medaka  where they lack primordial layer cardiomyocytes and fail to employ a cardioprotective gene program shared by regenerating vertebrates. Our findings reveal notable variation in injury response across nearly all major cardiac cell types in zebrafish and medaka  demonstrating how evolutionary divergence influences the hidden cellular features underpinning regenerative potential in these seemingly similar vertebrates. Overall design: scRNA seq of dissected ventricles from zebrafish and medaka fish before injury  3 days  and 14 xxx post injury", null, null, null, "zebrafish uninjured rep3", "GSM8173833", null, "source name:Heart Ventricle|tissue:Heart Ventricle|treatment:Uninjured|geo loc name:missing|collection date:missing", "zebrafish uninjured rep3", "Single cell RNA seq reads were processed with Cellranger from 10X Genomics with the default settings  using GRCz11 v4.3.2 reference Lawson et al.  2020 for zebrafish read alignments and ASM223467v1 for Medaka. Assembly: GRCz11  ASM223467v1 Supplementary files format and content: Tab separated values files and matrix files", "Heart Ventricle", "Cryoinjuries were performed on the ventricle apex of both medaka and zebrafish as described previously Gonz\u00e1lez Rosa et al.  2011. Briefly  0.02% and 0.04% Tricaine MS 222 was used to anesthetize zebrafish and medaka  respectively. Fish were mounted on a moist sponge. The ventricle apex was exposed by making a small thoracic incision using forceps and dissecting scissors. A cryoprobe was constructed as described previously using a 0.5 mm diameter copper wireGonz\u00e1lez Rosa and Mercader  2012. post submersion in liquid nitrogen for at least 2 minutes  the probe was placed in contact with the ventricle apex for exactly 23 seconds. post injury  fish were placed back into freshwater tanks to recover  then transferred back into the fish facility for monitoring.", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer\u2019s specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", "Wild type T\u00fcbingen zebrafish and CAB medaka  aged 6 month 18 month unless otherwise stated  were used for all experiments. All zebrafish and medaka work was performed at University of Utah\u2019s CBRZ zebrafish facility. This study was conducted under the approval of the Office of Institutional Animal Care and Use Committee IACUC no. 20 07013 of the University of Utah\u2019s animal care and use program.", "tissue:Heart Ventricle|treatment:Uninjured", "GSM8173833", "GSM8173833: zebrafish uninjured rep3; Danio rerio; RNA Seq", "GSM8173833 r1", "GSM8173833", "1", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer's specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP498465", null, "loader:fastq load.py|options:  readTypes=TTBB   read1PairFiles=19226X1 211001 A00421 0374 BHMGTFDSX2 S1 L004 I1 001.fastq.gz   read2PairFiles=19226X1 211001 A00421 0374 BHMGTFDSX2 S1 L004 I2 001.fastq.gz   read3PairFiles=19226X1 211001 A00421 0374 BHMGTFDSX2 S1 L004 R1 001.fastq.gz   read4PairFiles=19226X1 211001 A00421 0374 BHMGTFDSX2 S1 L004 R2 001.fastq.gz", "19226X1_211001_A00421_0374_BHMGTFDSX2_S1_L004_I1_001.fastq.gz 19226X1_211001_A00421_0374_BHMGTFDSX2_S1_L004_I2_001.fastq.gz 19226X1_211001_A00421_0374_BHMGTFDSX2_S1_L004_R1_001.fastq.gz 19226X1_211001_A00421_0374_BHMGTFDSX2_S1_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 74194991442.0, 374722179.0, "GSM8173833 r1", "0:10 1:10 2:28 3:150", "A:20240239572;C:15201039627;G:15390341020;T:15867858186;N:1069457", 10, 10, 28, 150, 20240239572, 15201039627, 15390341020, 15867858186, 1069457, "SRX24093147", "SRS20882443", "SRA1835934", "Gagnon, Biology, University of Utah", "Gagnon, Biology, University of Utah", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-03-28", "Adult", "Adult", "Heart", "Cardiovascular System"], [31685, "SRR28490930", "SRX24093146", "SRS20882442", "SRP498465", "PRJNA1093008", "Distinct features of the regenerating heart uncovered through comparative single cell profiling", "GSE262689", "Other", "Adult humans respond to heart injury by forming a permanent scar  yet other vertebrates are capable of robust and complete cardiac regeneration. Despite progress towards characterizing the mechanisms of cardiac regeneration in fish and amphibians  the large evolutionary gulf between mammals and regenerating vertebrates complicates deciphering which cellular and molecular features truly enable regeneration. To better define these features  we compared cardiac injury responses in zebrafish and medaka  two fish species that share similar heart anatomy and common teleost ancestry but differ in regenerative capability. We used single cell transcriptional profiling to create a time resolved comparative cell atlas of injury responses in all major cardiac cell types across both species. With this approach  we identified several key features that distinguish cardiac injury response in the non regenerating medaka heart. By comparing immune responses to injury  we found altered cell recruitment and a distinct pro inflammatory gene program in medaka leukocytes  and an absence of the injury induced interferon response seen in zebrafish. In addition  we found a lack of pro regenerative signals  including nrg1 and retinoic acid  from medaka endothelial and epicardial cells. Finally  we identified alterations in the myocardial structure in medaka  where they lack primordial layer cardiomyocytes and fail to employ a cardioprotective gene program shared by regenerating vertebrates. Our findings reveal notable variation in injury response across nearly all major cardiac cell types in zebrafish and medaka  demonstrating how evolutionary divergence influences the hidden cellular features underpinning regenerative potential in these seemingly similar vertebrates. Overall design: scRNA seq of dissected ventricles from zebrafish and medaka fish before injury  3 days  and 14 xxx post injury", null, null, null, "zebrafish uninjured rep2", "GSM8173832", null, "source name:Heart Ventricle|tissue:Heart Ventricle|treatment:Uninjured|geo loc name:missing|collection date:missing", "zebrafish uninjured rep2", "Single cell RNA seq reads were processed with Cellranger from 10X Genomics with the default settings  using GRCz11 v4.3.2 reference Lawson et al.  2020 for zebrafish read alignments and ASM223467v1 for Medaka. Assembly: GRCz11  ASM223467v1 Supplementary files format and content: Tab separated values files and matrix files", "Heart Ventricle", "Cryoinjuries were performed on the ventricle apex of both medaka and zebrafish as described previously Gonz\u00e1lez Rosa et al.  2011. Briefly  0.02% and 0.04% Tricaine MS 222 was used to anesthetize zebrafish and medaka  respectively. Fish were mounted on a moist sponge. The ventricle apex was exposed by making a small thoracic incision using forceps and dissecting scissors. A cryoprobe was constructed as described previously using a 0.5 mm diameter copper wireGonz\u00e1lez Rosa and Mercader  2012. post submersion in liquid nitrogen for at least 2 minutes  the probe was placed in contact with the ventricle apex for exactly 23 seconds. post injury  fish were placed back into freshwater tanks to recover  then transferred back into the fish facility for monitoring.", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer\u2019s specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", "Wild type T\u00fcbingen zebrafish and CAB medaka  aged 6 month 18 month unless otherwise stated  were used for all experiments. All zebrafish and medaka work was performed at University of Utah\u2019s CBRZ zebrafish facility. This study was conducted under the approval of the Office of Institutional Animal Care and Use Committee IACUC no. 20 07013 of the University of Utah\u2019s animal care and use program.", "tissue:Heart Ventricle|treatment:Uninjured", "GSM8173832", "GSM8173832: zebrafish uninjured rep2; Danio rerio; RNA Seq", "GSM8173832 r1", "GSM8173832", "1", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer's specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP498465", null, "loader:fastq load.py|options:  readTypes=TBB   read1PairFiles=18041X2 200623 A00421 0208 BHT77VDMXX S3 L001 I1 001.fastq.gz   read2PairFiles=18041X2 200623 A00421 0208 BHT77VDMXX S3 L001 R1 001.fastq.gz   read3PairFiles=18041X2 200623 A00421 0208 BHT77VDMXX S3 L001 R2 001.fastq.gz", "18041X2_200623_A00421_0208_BHT77VDMXX_S3_L001_I1_001.fastq.gz 18041X2_200623_A00421_0208_BHT77VDMXX_S3_L001_R1_001.fastq.gz 18041X2_200623_A00421_0208_BHT77VDMXX_S3_L001_R2_001.fastq.gz", "fastq fastq fastq", 42126965160.0, 226489060.0, "GSM8173832 r1", "0:8 1:28 2:150", "A:11954731471;C:9381480553;G:8372128049;T:10605910330;N:802277", 8, 28, 150, null, 11954731471, 9381480553, 8372128049, 10605910330, 802277, "SRX24093146", "SRS20882442", "SRA1835934", "Gagnon, Biology, University of Utah", "Gagnon, Biology, University of Utah", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-03-28", "Adult", "Adult", "Heart", "Cardiovascular System"], [31686, "SRR28490931", "SRX24093145", "SRS20882441", "SRP498465", "PRJNA1093008", "Distinct features of the regenerating heart uncovered through comparative single cell profiling", "GSE262689", "Other", "Adult humans respond to heart injury by forming a permanent scar  yet other vertebrates are capable of robust and complete cardiac regeneration. Despite progress towards characterizing the mechanisms of cardiac regeneration in fish and amphibians  the large evolutionary gulf between mammals and regenerating vertebrates complicates deciphering which cellular and molecular features truly enable regeneration. To better define these features  we compared cardiac injury responses in zebrafish and medaka  two fish species that share similar heart anatomy and common teleost ancestry but differ in regenerative capability. We used single cell transcriptional profiling to create a time resolved comparative cell atlas of injury responses in all major cardiac cell types across both species. With this approach  we identified several key features that distinguish cardiac injury response in the non regenerating medaka heart. By comparing immune responses to injury  we found altered cell recruitment and a distinct pro inflammatory gene program in medaka leukocytes  and an absence of the injury induced interferon response seen in zebrafish. In addition  we found a lack of pro regenerative signals  including nrg1 and retinoic acid  from medaka endothelial and epicardial cells. Finally  we identified alterations in the myocardial structure in medaka  where they lack primordial layer cardiomyocytes and fail to employ a cardioprotective gene program shared by regenerating vertebrates. Our findings reveal notable variation in injury response across nearly all major cardiac cell types in zebrafish and medaka  demonstrating how evolutionary divergence influences the hidden cellular features underpinning regenerative potential in these seemingly similar vertebrates. Overall design: scRNA seq of dissected ventricles from zebrafish and medaka fish before injury  3 days  and 14 xxx post injury", null, null, null, "zebrafish uninjured rep1", "GSM8173831", null, "source name:Heart Ventricle|tissue:Heart Ventricle|treatment:Uninjured|geo loc name:missing|collection date:missing", "zebrafish uninjured rep1", "Single cell RNA seq reads were processed with Cellranger from 10X Genomics with the default settings  using GRCz11 v4.3.2 reference Lawson et al.  2020 for zebrafish read alignments and ASM223467v1 for Medaka. Assembly: GRCz11  ASM223467v1 Supplementary files format and content: Tab separated values files and matrix files", "Heart Ventricle", "Cryoinjuries were performed on the ventricle apex of both medaka and zebrafish as described previously Gonz\u00e1lez Rosa et al.  2011. Briefly  0.02% and 0.04% Tricaine MS 222 was used to anesthetize zebrafish and medaka  respectively. Fish were mounted on a moist sponge. The ventricle apex was exposed by making a small thoracic incision using forceps and dissecting scissors. A cryoprobe was constructed as described previously using a 0.5 mm diameter copper wireGonz\u00e1lez Rosa and Mercader  2012. post submersion in liquid nitrogen for at least 2 minutes  the probe was placed in contact with the ventricle apex for exactly 23 seconds. post injury  fish were placed back into freshwater tanks to recover  then transferred back into the fish facility for monitoring.", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer\u2019s specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", "Wild type T\u00fcbingen zebrafish and CAB medaka  aged 6 month 18 month unless otherwise stated  were used for all experiments. All zebrafish and medaka work was performed at University of Utah\u2019s CBRZ zebrafish facility. This study was conducted under the approval of the Office of Institutional Animal Care and Use Committee IACUC no. 20 07013 of the University of Utah\u2019s animal care and use program.", "tissue:Heart Ventricle|treatment:Uninjured", "GSM8173831", "GSM8173831: zebrafish uninjured rep1; Danio rerio; RNA Seq", "GSM8173831 r1", "GSM8173831", "1", "To prepare cells for scRNA seq  adult fish were euthanized by immersion in ice cold water. post dissection and removal of hearts  the remaining atrium and bulbus arteriosus tissue were cut away with scissors to isolate the ventricle. Ventricles were placed in PBS solution and gently squeezed with forceps to remove residual blood prior to digestion. Whole ventricles were placed Biology Open \u2022 Accepted manuscript in 200 \u00b5l dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37\u00b0C for 30 min on a benchtop shaker at 250RPM with additional pipetting every 5 min to break apart the tissue. post complete digestion  the reaction was quenched with ice cold PBS/50% Fetal Bovine Serum and passed through a 40 \u00b5M strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4\u00b0C and resuspended in ice cold PBS with 0.04% Bovine Serum Albumin. Cells were then assessed for viability and dissociation quality using acridine orange and propidium iodide staining with a Nexcelom Cellometer automated cell imager. Each sample viability was assessed to be >85%. Cells were loaded onto a 10X Genomics Chromium controller and processed according to the manufacturer's specifications. cDNA libraries were prepared for sequencing on the Illumina Novaseq platform at a depth of approximately 400M reads/sample. Libraries wer constructed according to the manufacturer's protocol 10X chromium controller", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP498465", null, "loader:fastq load.py|options:  readTypes=TBB   read1PairFiles=18041X1 200623 A00421 0208 BHT77VDMXX S2 L001 I1 001.fastq.gz   read2PairFiles=18041X1 200623 A00421 0208 BHT77VDMXX S2 L001 R1 001.fastq.gz   read3PairFiles=18041X1 200623 A00421 0208 BHT77VDMXX S2 L001 R2 001.fastq.gz", "18041X1_200623_A00421_0208_BHT77VDMXX_S2_L001_I1_001.fastq.gz 18041X1_200623_A00421_0208_BHT77VDMXX_S2_L001_R1_001.fastq.gz 18041X1_200623_A00421_0208_BHT77VDMXX_S2_L001_R2_001.fastq.gz", "fastq fastq fastq", 48849838812.0, 262633542.0, "GSM8173831 r1", "0:8 1:28 2:150", "A:13780412427;C:10982740007;G:9382145879;T:12602525920;N:946243", 8, 28, 150, null, 13780412427, 10982740007, 9382145879, 12602525920, 946243, "SRX24093145", "SRS20882441", "SRA1835934", "Gagnon, Biology, University of Utah", "Gagnon, Biology, University of Utah", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-03-28", "Adult", "Adult", "Heart", "Cardiovascular System"], [32609, "SRR29325925", "SRX24842084", "SRS21553259", "SRP512516", "PRJNA1121299", "Gene expression profile of single endocardial cells in 48 hpf and 72 hpf zebrafish embryos/larvae. In the study \"The heart is a niche for hematopoietic stem and progenitor cells in zebrafish.\"", "GSE269378", "Transcriptome Analysis", "We used single cell RNA expression to uncover the cellular and molecular heterogeneity of isolated endocardial cells in the heart. From this study  we uncovered the presence of an endocardial hematopoietic cluster  along with other significant clusters including valve endocardial and interstitial cells  and non valve cells. Overall design: Endocardial cells were isolated using FACS from physically extracted Tgkdrl:nls mCherry and Tgcd41:GFP hearts according to presence of mCherry positive cells  and further analyzed using scRNAseq.", null, "pubmed:39217144", null, "EC 2d", "GSM8314110", null, "source name:Heart|tissue:Heart|cell type:Endocardial cells|genotype:Tgkdrl:nls mCherry; Tgcd41:GFP|developmental stage:48 hpf loc name:missing|collection date:missing", "EC 2d", "Sequencing was done on Nextseq2000 and raw reads were aligned against the zebrafish genome DanRer11 and counted by StarSolo Preprocessed counts were further analysed using Scanpy ollowed by secondary analysis in Annotated Data Format. Preprocessed counts were further analyzed using Scanpy. Basic cell quality control was conducted by taking the number of detected genes and mitochondrial content into consideration. We removed 5 cells in total that did not express more than 300 genes or had a mitochondrial content greater than 5%. Furthermore  we filtered 24259 genes if they were detected in less than 30 cells <0.01%. Raw counts per cell were normalized to the median count over all cells and transformed into log space to stabilize variance. We initially reduced dimensionality of the dataset using PCA  retaining 50 principal components. Subsequent steps  like low dimensional UMAP embedding McInnes & Healy  https://arxiv.org/abs/1802.03426 and cell clustering via community detection  were based on the initial PCA. Final data visualization was done by scanpy and cellxgene packages. Assembly: danRer11 Supplementary files format and content: starsolo outputs", "Heart", null, "Embryos were raised in a solution composed of 0.33 Danieau's medium  containing the following concentrations: 17.4 mM NaCl  0.21 mM KCl  0.12 mM MgSO4\u00b7H2O  and 0.18 mM CaNO32  while being maintained at a stable temperature of 28\u00b0C. To isolate EdCs for the single cell RNA sequencing experiment  hearts from 48  and 72 hpf Tgkdrl:nls mCherry; Tgcd41:GFP larvae were manually dissected in DMEM + 10% FBS.   Hearts were then centrifuged for 60 seconds at 3000 rpm  washed with 1 mL Hanks\u2019 Balanced Salt Solution and dissociated into single cells by incubating in 100 \u03bcl Enzyme 1 and 5 \u03bcl Enzyme 2 Pierce Cardiomyocyte Dissociation Kit  Thermo Fisher Scientific  Cat#88281 for 20 minutes at 300 rpm in a 30\u00b0C shaker 79.  The samples were centrifuged for 5 minutes at 3000 rpm  the supernatant was discarded  and fresh medium was added to the dissociated cells and passed through 40 \u03bcM filter polystyrene 5ml tubes.  Negative controls of non fluorescent hearts or single color fluorescent hearts were prepared to define the sorting gates.  Cells were sorted using the BD FACSAria\u2122 III BD Biosciences instrument.   Live cells were selected by exclusion of DAPI using 30mW 405nm excitation paired with 450/50 nm band pass filter.  The software used for sorting and analysis is BD FACSDiva v8.0.1.  Single positive Tgkdrl:nls mCherry+ cells and double positive Tgkdrl:nls mCherry+; Tgcd41:GFP+ cells were sorted and collected into tubes with DMEM + 10% FBS.  Cells from both collected samples were immediately combined and processed for the single cell RNA sequencing.  mCherry fluorescence was measured with 50mW 561nm excitation paired with 610/20nm band pass filter. GFP fluorescence was measured with 50mW 488nm excitation paired with 530/30 band pass filter. The cell suspensions were counted with Moxi cell counter and diluted according to manufacturer\u2019s protocol to obtain 4.000 2d HC and 8.000 3d  10.497 EC  1.569 HC single cell data points per sample  respectively. Each sample was run separately on a lane in Chromium controller with Chromium Next GEM Single Cell 3\u02b9 Reagent Kits v3.1 10xGenomics. Library preparation was conducted according to the manufacturer indications.", "Embryos/larvae were grown in 28 degree incubator until extraction at 48 or 72 hpf", "tissue:Heart|cell type:Endocardial cells|genotype:Tgkdrl:nls mCherry; Tgcd41:GFP|developmental stage:48 hpf", "GSM8314110", "GSM8314110: EC 2d; Danio rerio; RNA Seq", "GSM8314110 r1", "GSM8314110", "1", "Embryos were raised in a solution composed of 0.33 Danieau's medium  containing the following concentrations: 17.4 mM NaCl  0.21 mM KCl  0.12 mM MgSO4\u00b7H2O  and 0.18 mM CaNO32  while being maintained at a stable temperature of 28\u00b0C. To isolate EdCs for the single cell RNA sequencing experiment  hearts from 48  and 72 hpf Tgkdrl:nls mCherry; Tgcd41:GFP larvae were manually dissected in DMEM + 10% FBS.   Hearts were then centrifuged for 60 seconds at 3000 rpm  washed with 1 mL Hanks' Balanced Salt Solution and dissociated into single cells by incubating in 100 \u03bcl Enzyme 1 and 5 \u03bcl Enzyme 2 Pierce Cardiomyocyte Dissociation Kit  Thermo Fisher Scientific  Cat#88281 for 20 minutes at 300 rpm in a 30\u00b0C shaker 79.  The samples were centrifuged for 5 minutes at 3000 rpm  the supernatant was discarded  and fresh medium was added to the dissociated cells and passed through 40 \u03bcM filter polystyrene 5ml tubes.  Negative controls of non fluorescent hearts or single color fluorescent hearts were prepared to define the sorting gates.  Cells were sorted using the BD FACSAria\u2122 III BD Biosciences instrument.   Live cells were selected by exclusion of DAPI using 30mW 405nm excitation paired with 450/50 nm band pass filter.  The software used for sorting and analysis is BD FACSDiva v8.0.1.  Single positive Tgkdrl:nls mCherry+ cells and double positive Tgkdrl:nls mCherry+; Tgcd41:GFP+ cells were sorted and collected into tubes with DMEM + 10% FBS.  Cells from both collected samples were immediately combined and processed for the single cell RNA sequencing.  mCherry fluorescence was measured with 50mW 561nm excitation paired with 610/20nm band pass filter. GFP fluorescence was measured with 50mW 488nm excitation paired with 530/30 band pass filter. The cell suspensions were counted with Moxi cell counter and diluted according to manufacturer's protocol to obtain 4.000 2d HC and 8.000 3d  10.497 EC  1.569 HC single cell data points per sample  respectively. Each sample was run separately on a lane in Chromium controller with Chromium Next GEM Single Cell 3\u02b9 Reagent Kits v3.1 10xGenomics. Library preparation was conducted according to the manufacturer indications.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 2000", null, "SRP512516", null, null, "Felix_10x_Lib_EC-2d_R1.fastq.gz Felix_10x_Lib_EC-2d_R2.fastq.gz", "fastq fastq", 37849382027.0, 476135961.0, "GSM8314110 r1", "0:28 1:51.49", "A:10212120425;C:8162504214;G:8573129268;T:10704929378;N:196698742", 28, 51, null, null, 10212120425, 8162504214, 8573129268, 10704929378, 196698742, "SRX24842084", "SRS21553259", "SRA1892449", "MPI for heart and lung research", "MPI for heart and lung research", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "mate1 technical by mapping diff", "illumina", "nextseq_v2", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Germany", "2024-06-07", "Hatching", "Embryo", "Heart", "Cardiovascular System"], [32610, "SRR29325926", "SRX24842083", "SRS21553258", "SRP512516", "PRJNA1121299", "Gene expression profile of single endocardial cells in 48 hpf and 72 hpf zebrafish embryos/larvae. In the study \"The heart is a niche for hematopoietic stem and progenitor cells in zebrafish.\"", "GSE269378", "Transcriptome Analysis", "We used single cell RNA expression to uncover the cellular and molecular heterogeneity of isolated endocardial cells in the heart. From this study  we uncovered the presence of an endocardial hematopoietic cluster  along with other significant clusters including valve endocardial and interstitial cells  and non valve cells. Overall design: Endocardial cells were isolated using FACS from physically extracted Tgkdrl:nls mCherry and Tgcd41:GFP hearts according to presence of mCherry positive cells  and further analyzed using scRNAseq.", null, "pubmed:39217144", null, "EC HC 3d", "GSM8314111", null, "source name:Heart|tissue:Heart|cell type:Endocardial cells|genotype:Tgkdrl:nls mCherry; Tgcd41:GFP|developmental stage:72 hpf loc name:missing|collection date:missing", "EC HC 3d", "Sequencing was done on Nextseq2000 and raw reads were aligned against the zebrafish genome DanRer11 and counted by StarSolo Preprocessed counts were further analysed using Scanpy ollowed by secondary analysis in Annotated Data Format. Preprocessed counts were further analyzed using Scanpy. Basic cell quality control was conducted by taking the number of detected genes and mitochondrial content into consideration. We removed 5 cells in total that did not express more than 300 genes or had a mitochondrial content greater than 5%. Furthermore  we filtered 24259 genes if they were detected in less than 30 cells <0.01%. Raw counts per cell were normalized to the median count over all cells and transformed into log space to stabilize variance. We initially reduced dimensionality of the dataset using PCA  retaining 50 principal components. Subsequent steps  like low dimensional UMAP embedding McInnes & Healy  https://arxiv.org/abs/1802.03426 and cell clustering via community detection  were based on the initial PCA. Final data visualization was done by scanpy and cellxgene packages. Assembly: danRer11 Supplementary files format and content: starsolo outputs", "Heart", null, "Embryos were raised in a solution composed of 0.33 Danieau's medium  containing the following concentrations: 17.4 mM NaCl  0.21 mM KCl  0.12 mM MgSO4\u00b7H2O  and 0.18 mM CaNO32  while being maintained at a stable temperature of 28\u00b0C. To isolate EdCs for the single cell RNA sequencing experiment  hearts from 48  and 72 hpf Tgkdrl:nls mCherry; Tgcd41:GFP larvae were manually dissected in DMEM + 10% FBS.   Hearts were then centrifuged for 60 seconds at 3000 rpm  washed with 1 mL Hanks\u2019 Balanced Salt Solution and dissociated into single cells by incubating in 100 \u03bcl Enzyme 1 and 5 \u03bcl Enzyme 2 Pierce Cardiomyocyte Dissociation Kit  Thermo Fisher Scientific  Cat#88281 for 20 minutes at 300 rpm in a 30\u00b0C shaker 79.  The samples were centrifuged for 5 minutes at 3000 rpm  the supernatant was discarded  and fresh medium was added to the dissociated cells and passed through 40 \u03bcM filter polystyrene 5ml tubes.  Negative controls of non fluorescent hearts or single color fluorescent hearts were prepared to define the sorting gates.  Cells were sorted using the BD FACSAria\u2122 III BD Biosciences instrument.   Live cells were selected by exclusion of DAPI using 30mW 405nm excitation paired with 450/50 nm band pass filter.  The software used for sorting and analysis is BD FACSDiva v8.0.1.  Single positive Tgkdrl:nls mCherry+ cells and double positive Tgkdrl:nls mCherry+; Tgcd41:GFP+ cells were sorted and collected into tubes with DMEM + 10% FBS.  Cells from both collected samples were immediately combined and processed for the single cell RNA sequencing.  mCherry fluorescence was measured with 50mW 561nm excitation paired with 610/20nm band pass filter. GFP fluorescence was measured with 50mW 488nm excitation paired with 530/30 band pass filter. The cell suspensions were counted with Moxi cell counter and diluted according to manufacturer\u2019s protocol to obtain 4.000 2d HC and 8.000 3d  10.497 EC  1.569 HC single cell data points per sample  respectively. Each sample was run separately on a lane in Chromium controller with Chromium Next GEM Single Cell 3\u02b9 Reagent Kits v3.1 10xGenomics. Library preparation was conducted according to the manufacturer indications.", "Embryos/larvae were grown in 28 degree incubator until extraction at 48 or 72 hpf", "tissue:Heart|cell type:Endocardial cells|genotype:Tgkdrl:nls mCherry; Tgcd41:GFP|developmental stage:72 hpf", "GSM8314111", "GSM8314111: EC HC 3d; Danio rerio; RNA Seq", "GSM8314111 r1", "GSM8314111", "1", "Embryos were raised in a solution composed of 0.33 Danieau's medium  containing the following concentrations: 17.4 mM NaCl  0.21 mM KCl  0.12 mM MgSO4\u00b7H2O  and 0.18 mM CaNO32  while being maintained at a stable temperature of 28\u00b0C. To isolate EdCs for the single cell RNA sequencing experiment  hearts from 48  and 72 hpf Tgkdrl:nls mCherry; Tgcd41:GFP larvae were manually dissected in DMEM + 10% FBS.   Hearts were then centrifuged for 60 seconds at 3000 rpm  washed with 1 mL Hanks' Balanced Salt Solution and dissociated into single cells by incubating in 100 \u03bcl Enzyme 1 and 5 \u03bcl Enzyme 2 Pierce Cardiomyocyte Dissociation Kit  Thermo Fisher Scientific  Cat#88281 for 20 minutes at 300 rpm in a 30\u00b0C shaker 79.  The samples were centrifuged for 5 minutes at 3000 rpm  the supernatant was discarded  and fresh medium was added to the dissociated cells and passed through 40 \u03bcM filter polystyrene 5ml tubes.  Negative controls of non fluorescent hearts or single color fluorescent hearts were prepared to define the sorting gates.  Cells were sorted using the BD FACSAria\u2122 III BD Biosciences instrument.   Live cells were selected by exclusion of DAPI using 30mW 405nm excitation paired with 450/50 nm band pass filter.  The software used for sorting and analysis is BD FACSDiva v8.0.1.  Single positive Tgkdrl:nls mCherry+ cells and double positive Tgkdrl:nls mCherry+; Tgcd41:GFP+ cells were sorted and collected into tubes with DMEM + 10% FBS.  Cells from both collected samples were immediately combined and processed for the single cell RNA sequencing.  mCherry fluorescence was measured with 50mW 561nm excitation paired with 610/20nm band pass filter. GFP fluorescence was measured with 50mW 488nm excitation paired with 530/30 band pass filter. The cell suspensions were counted with Moxi cell counter and diluted according to manufacturer's protocol to obtain 4.000 2d HC and 8.000 3d  10.497 EC  1.569 HC single cell data points per sample  respectively. Each sample was run separately on a lane in Chromium controller with Chromium Next GEM Single Cell 3\u02b9 Reagent Kits v3.1 10xGenomics. Library preparation was conducted according to the manufacturer indications.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "NextSeq 2000", null, "SRP512516", null, null, "Felix_10x_Lib_EC-HC_3d_R1.fastq.gz Felix_10x_Lib_EC-HC_3d_R2.fastq.gz", "fastq fastq", 34745112542.0, 437132766.0, "GSM8314111 r1", "0:28 1:51.48", "A:9310358713;C:7641472951;G:8108829079;T:9501691105;N:182760694", 28, 51, null, null, 9310358713, 7641472951, 8108829079, 9501691105, 182760694, "SRX24842083", "SRS21553258", "SRA1892449", "MPI for heart and lung research", "MPI for heart and lung research", null, null, null, null, null, null, null, null, null, null, null, "T", "B", "sc-like readlen", "illumina", "nextseq_v2", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Germany", "2024-06-07", "Larval", "Larval", "Heart", "Cardiovascular System"], [34072, "SRR31040127", "SRX26425404", "SRS22944868", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "Cited UI L004", "GSM8581895", null, "source name:heart|tissue:heart|genotype:pt38a/pt38a|treatment:Uninjured heart|geo loc name:missing|collection date:missing", "Cited UI L004", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:pt38a/pt38a|treatment:Uninjured heart", "GSM8581895", "GSM8581895: Cited UI L004; Danio rerio; RNA Seq", "GSM8581895 r1", "GSM8581895", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L004 R1 001.fastq.gz   read2PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L004 R2 001.fastq.gz   read3PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L004 I1 001.fastq.gz   read4PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L004 I2 001.fastq.gz", "pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L004_I1_001.fastq.gz pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L004_I2_001.fastq.gz pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L004_R1_001.fastq.gz pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 8751034986.0, 63413297.0, "GSM8581895 r1", "0:28 1:90 2:10 3:10", "A:1848966031;C:1012706988;G:1157260676;T:1688231038;N:31997", 28, 90, 10, 10, 1848966031, 1012706988, 1157260676, 1688231038, 31997, "SRX26425404", "SRS22944868", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [34073, "SRR31040128", "SRX26425403", "SRS22944867", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "Cited UI L003", "GSM8581894", null, "source name:heart|tissue:heart|genotype:pt38a/pt38a|treatment:Uninjured heart|geo loc name:missing|collection date:missing", "Cited UI L003", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:pt38a/pt38a|treatment:Uninjured heart", "GSM8581894", "GSM8581894: Cited UI L003; Danio rerio; RNA Seq", "GSM8581894 r1", "GSM8581894", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L003 R1 001.fastq.gz   read2PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L003 R2 001.fastq.gz   read3PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L003 I1 001.fastq.gz   read4PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L003 I2 001.fastq.gz", "pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L003_I1_001.fastq.gz pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L003_I2_001.fastq.gz pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L003_R1_001.fastq.gz pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L003_R2_001.fastq.gz", "fastq fastq fastq fastq", 8965044420.0, 64964090.0, "GSM8581894 r1", "0:28 1:90 2:10 3:10", "A:1889187704;C:1042838950;G:1192357586;T:1722353910;N:29950", 28, 90, 10, 10, 1889187704, 1042838950, 1192357586, 1722353910, 29950, "SRX26425403", "SRS22944867", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [34074, "SRR31040129", "SRX26425402", "SRS22944866", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "Cited UI L002", "GSM8581893", null, "source name:heart|tissue:heart|genotype:pt38a/pt38a|treatment:Uninjured heart|geo loc name:missing|collection date:missing", "Cited UI L002", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:pt38a/pt38a|treatment:Uninjured heart", "GSM8581893", "GSM8581893: Cited UI L002; Danio rerio; RNA Seq", "GSM8581893 r1", "GSM8581893", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L002 R1 001.fastq.gz   read2PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L002 R2 001.fastq.gz   read3PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L002 I1 001.fastq.gz   read4PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L002 I2 001.fastq.gz", "pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L002_I1_001.fastq.gz pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L002_I2_001.fastq.gz pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L002_R1_001.fastq.gz pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L002_R2_001.fastq.gz", "fastq fastq fastq fastq", 9234521850.0, 66916825.0, "GSM8581893 r1", "0:28 1:90 2:10 3:10", "A:1942032508;C:1074923961;G:1229240783;T:1776284178;N:32820", 28, 90, 10, 10, 1942032508, 1074923961, 1229240783, 1776284178, 32820, "SRX26425402", "SRS22944866", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [34075, "SRR31040130", "SRX26425401", "SRS22944865", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "Cited UI L001", "GSM8581892", null, "source name:heart|tissue:heart|genotype:pt38a/pt38a|treatment:Uninjured heart|geo loc name:missing|collection date:missing", "Cited UI L001", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:pt38a/pt38a|treatment:Uninjured heart", "GSM8581892", "GSM8581892: Cited UI L001; Danio rerio; RNA Seq", "GSM8581892 r1", "GSM8581892", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L001 R1 001.fastq.gz   read2PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L001 R2 001.fastq.gz   read3PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L001 I1 001.fastq.gz   read4PairFiles=pt38a UI 022323 Tsang GEX LAF4954A26 S11 L001 I2 001.fastq.gz", "pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L001_I1_001.fastq.gz pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L001_I2_001.fastq.gz pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L001_R1_001.fastq.gz pt38a_UI_022323_Tsang_GEX_LAF4954A26_S11_L001_R2_001.fastq.gz", "fastq fastq fastq fastq", 9307917288.0, 67448676.0, "GSM8581892 r1", "0:28 1:90 2:10 3:10", "A:1956920944;C:1083084138;G:1238610324;T:1791739835;N:25599", 28, 90, 10, 10, 1956920944, 1083084138, 1238610324, 1791739835, 25599, "SRX26425401", "SRS22944865", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [34076, "SRR31040131", "SRX26425400", "SRS22944864", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "Cited 3dpa L004", "GSM8581891", null, "source name:heart|tissue:heart|genotype:pt38a/pt38a|treatment:3 dy post amputation|geo loc name:missing|collection date:missing", "Cited 3dpa L004", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:pt38a/pt38a|treatment:3 dy post amputation", "GSM8581891", "GSM8581891: Cited 3dpa L004; Danio rerio; RNA Seq", "GSM8581891 r1", "GSM8581891", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L004 R1 001.fastq.gz   read2PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L004 R2 001.fastq.gz   read3PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L004 I1 001.fastq.gz   read4PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L004 I2 001.fastq.gz", "pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L004_I1_001.fastq.gz pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L004_I2_001.fastq.gz pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L004_R1_001.fastq.gz pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 7170951684.0, 51963418.0, "GSM8581891 r1", "0:28 1:90 2:10 3:10", "A:1540735099;C:805699399;G:919379467;T:1410866922;N:26733", 28, 90, 10, 10, 1540735099, 805699399, 919379467, 1410866922, 26733, "SRX26425400", "SRS22944864", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [34077, "SRR31040132", "SRX26425399", "SRS22944863", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "Cited 3dpa L003", "GSM8581890", null, "source name:heart|tissue:heart|genotype:pt38a/pt38a|treatment:3 dy post amputation|geo loc name:missing|collection date:missing", "Cited 3dpa L003", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:pt38a/pt38a|treatment:3 dy post amputation", "GSM8581890", "GSM8581890: Cited 3dpa L003; Danio rerio; RNA Seq", "GSM8581890 r1", "GSM8581890", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L003 R1 001.fastq.gz   read2PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L003 R2 001.fastq.gz   read3PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L003 I1 001.fastq.gz   read4PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L003 I2 001.fastq.gz", "pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L003_I1_001.fastq.gz pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L003_I2_001.fastq.gz pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L003_R1_001.fastq.gz pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L003_R2_001.fastq.gz", "fastq fastq fastq fastq", 7291420716.0, 52836382.0, "GSM8581890 r1", "0:28 1:90 2:10 3:10", "A:1561481957;C:822744414;G:938546253;T:1432477210;N:24546", 28, 90, 10, 10, 1561481957, 822744414, 938546253, 1432477210, 24546, "SRX26425399", "SRS22944863", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [34078, "SRR31040133", "SRX26425398", "SRS22944862", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "Cited 3dpa L002", "GSM8581889", null, "source name:heart|tissue:heart|genotype:pt38a/pt38a|treatment:3 dy post amputation|geo loc name:missing|collection date:missing", "Cited 3dpa L002", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:pt38a/pt38a|treatment:3 dy post amputation", "GSM8581889", "GSM8581889: Cited 3dpa L002; Danio rerio; RNA Seq", "GSM8581889 r1", "GSM8581889", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L002 R1 001.fastq.gz   read2PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L002 R2 001.fastq.gz   read3PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L002 I1 001.fastq.gz   read4PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L002 I2 001.fastq.gz", "pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L002_I1_001.fastq.gz pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L002_I2_001.fastq.gz pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L002_R1_001.fastq.gz pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L002_R2_001.fastq.gz", "fastq fastq fastq fastq", 7477578162.0, 54185349.0, "GSM8581889 r1", "0:28 1:90 2:10 3:10", "A:1599788142;C:843874544;G:963283854;T:1469708656;N:26214", 28, 90, 10, 10, 1599788142, 843874544, 963283854, 1469708656, 26214, "SRX26425398", "SRS22944862", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [34079, "SRR31040134", "SRX26425397", "SRS22944861", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "Cited 3dpa L001", "GSM8581888", null, "source name:heart|tissue:heart|genotype:pt38a/pt38a|treatment:3 dy post amputation|geo loc name:missing|collection date:missing", "Cited 3dpa L001", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:pt38a/pt38a|treatment:3 dy post amputation", "GSM8581888", "GSM8581888: Cited 3dpa L001; Danio rerio; RNA Seq", "GSM8581888 r1", "GSM8581888", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L001 R1 001.fastq.gz   read2PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L001 R2 001.fastq.gz   read3PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L001 I1 001.fastq.gz   read4PairFiles=pt38a 3dpa 022323 Tsang GEX LAF4954A25 S4 L001 I2 001.fastq.gz", "pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L001_I1_001.fastq.gz pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L001_I2_001.fastq.gz pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L001_R1_001.fastq.gz pt38a_3dpa_022323_Tsang_GEX_LAF4954A25_S4_L001_R2_001.fastq.gz", "fastq fastq fastq fastq", 7511701146.0, 54432617.0, "GSM8581888 r1", "0:28 1:90 2:10 3:10", "A:1606850913;C:847555151;G:967521409;T:1476987489;N:20568", 28, 90, 10, 10, 1606850913, 847555151, 967521409, 1476987489, 20568, "SRX26425397", "SRS22944861", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [34080, "SRR31040135", "SRX26425396", "SRS22944860", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "WT UI L004", "GSM8581887", null, "source name:heart|tissue:heart|genotype:WT|treatment:Uninjured heart|geo loc name:missing|collection date:missing", "WT UI L004", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:WT|treatment:Uninjured heart", "GSM8581887", "GSM8581887: WT UI L004; Danio rerio; RNA Seq", "GSM8581887 r1", "GSM8581887", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L004 R1 001.fastq.gz   read2PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L004 R2 001.fastq.gz   read3PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L004 I1 001.fastq.gz   read4PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L004 I2 001.fastq.gz", "WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L004_I1_001.fastq.gz WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L004_I2_001.fastq.gz WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L004_R1_001.fastq.gz WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 8744622816.0, 63366832.0, "GSM8581887 r1", "0:28 1:90 2:10 3:10", "A:1804235390;C:1112990195;G:1270205014;T:1515005620;N:578661", 28, 90, 10, 10, 1804235390, 1112990195, 1270205014, 1515005620, 578661, "SRX26425396", "SRS22944860", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [34081, "SRR31040136", "SRX26425395", "SRS22944859", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "WT UI L003", "GSM8581886", null, "source name:heart|tissue:heart|genotype:WT|treatment:Uninjured heart|geo loc name:missing|collection date:missing", "WT UI L003", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:WT|treatment:Uninjured heart", "GSM8581886", "GSM8581886: WT UI L003; Danio rerio; RNA Seq", "GSM8581886 r1", "GSM8581886", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L003 R1 001.fastq.gz   read2PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L003 R2 001.fastq.gz   read3PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L003 I1 001.fastq.gz   read4PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L003 I2 001.fastq.gz", "WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L003_I1_001.fastq.gz WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L003_I2_001.fastq.gz WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L003_R1_001.fastq.gz WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L003_R2_001.fastq.gz", "fastq fastq fastq fastq", 8629549722.0, 62532969.0, "GSM8581886 r1", "0:28 1:90 2:10 3:10", "A:1780671193;C:1097605584;G:1253098096;T:1495999781;N:592556", 28, 90, 10, 10, 1780671193, 1097605584, 1253098096, 1495999781, 592556, "SRX26425395", "SRS22944859", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [34082, "SRR31040137", "SRX26425394", "SRS22944858", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "WT UI L002", "GSM8581885", null, "source name:heart|tissue:heart|genotype:WT|treatment:Uninjured heart|geo loc name:missing|collection date:missing", "WT UI L002", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:WT|treatment:Uninjured heart", "GSM8581885", "GSM8581885: WT UI L002; Danio rerio; RNA Seq", "GSM8581885 r1", "GSM8581885", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L002 R1 001.fastq.gz   read2PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L002 R2 001.fastq.gz   read3PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L002 I1 001.fastq.gz   read4PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L002 I2 001.fastq.gz", "WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L002_I1_001.fastq.gz WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L002_I2_001.fastq.gz WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L002_R1_001.fastq.gz WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L002_R2_001.fastq.gz", "fastq fastq fastq fastq", 8810036748.0, 63840846.0, "GSM8581885 r1", "0:28 1:90 2:10 3:10", "A:1816298911;C:1122594552;G:1280394245;T:1525799551;N:588881", 28, 90, 10, 10, 1816298911, 1122594552, 1280394245, 1525799551, 588881, "SRX26425394", "SRS22944858", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [34083, "SRR31040138", "SRX26425393", "SRS22944857", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "WT UI L001", "GSM8581884", null, "source name:heart|tissue:heart|genotype:WT|treatment:Uninjured heart|geo loc name:missing|collection date:missing", "WT UI L001", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:WT|treatment:Uninjured heart", "GSM8581884", "GSM8581884: WT UI L001; Danio rerio; RNA Seq", "GSM8581884 r1", "GSM8581884", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L001 R1 001.fastq.gz   read2PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L001 R2 001.fastq.gz   read3PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L001 I1 001.fastq.gz   read4PairFiles=WTVI 101222 Tsang Multiome GEX LAF3807A40 S24 L001 I2 001.fastq.gz", "WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L001_I1_001.fastq.gz WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L001_I2_001.fastq.gz WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L001_R1_001.fastq.gz WTVI_101222_Tsang_Multiome_GEX_LAF3807A40_S24_L001_R2_001.fastq.gz", "fastq fastq fastq fastq", 8890601838.0, 64424651.0, "GSM8581884 r1", "0:28 1:90 2:10 3:10", "A:1831803855;C:1133337909;G:1293064278;T:1539489836;N:522712", 28, 90, 10, 10, 1831803855, 1133337909, 1293064278, 1539489836, 522712, "SRX26425393", "SRS22944857", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [34084, "SRR31040139", "SRX26425392", "SRS22944856", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "WT 3dpa L004", "GSM8581883", null, "source name:heart|tissue:heart|genotype:WT|treatment:3 dy post amputation|geo loc name:missing|collection date:missing", "WT 3dpa L004", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:WT|treatment:3 dy post amputation", "GSM8581883", "GSM8581883: WT 3dpa L004; Danio rerio; RNA Seq", "GSM8581883 r1", "GSM8581883", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L004 R1 001.fastq.gz   read2PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L004 R2 001.fastq.gz   read3PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L004 I1 001.fastq.gz   read4PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L004 I2 001.fastq.gz", "WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L004_I1_001.fastq.gz WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L004_I2_001.fastq.gz WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L004_R1_001.fastq.gz WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L004_R2_001.fastq.gz", "fastq fastq fastq fastq", 10259680380.0, 74345510.0, "GSM8581883 r1", "0:28 1:90 2:10 3:10", "A:2030501498;C:1372342288;G:1610608028;T:1676971327;N:672759", 28, 90, 10, 10, 2030501498, 1372342288, 1610608028, 1676971327, 672759, "SRX26425392", "SRS22944856", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [34085, "SRR31040140", "SRX26425391", "SRS22944855", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "WT 3dpa L003", "GSM8581882", null, "source name:heart|tissue:heart|genotype:WT|treatment:3 dy post amputation|geo loc name:missing|collection date:missing", "WT 3dpa L003", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:WT|treatment:3 dy post amputation", "GSM8581882", "GSM8581882: WT 3dpa L003; Danio rerio; RNA Seq", "GSM8581882 r1", "GSM8581882", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L003 R1 001.fastq.gz   read2PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L003 R2 001.fastq.gz   read3PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L003 I1 001.fastq.gz   read4PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L003 I2 001.fastq.gz", "WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L003_I1_001.fastq.gz WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L003_I2_001.fastq.gz WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L003_R1_001.fastq.gz WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L003_R2_001.fastq.gz", "fastq fastq fastq fastq", 10153022940.0, 73572630.0, "GSM8581882 r1", "0:28 1:90 2:10 3:10", "A:2010560616;C:1356907781;G:1592695197;T:1660694697;N:678409", 28, 90, 10, 10, 2010560616, 1356907781, 1592695197, 1660694697, 678409, "SRX26425391", "SRS22944855", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [34086, "SRR31040141", "SRX26425390", "SRS22944854", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "WT 3dpa L002", "GSM8581881", null, "source name:heart|tissue:heart|genotype:WT|treatment:3 dy post amputation|geo loc name:missing|collection date:missing", "WT 3dpa L002", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:WT|treatment:3 dy post amputation", "GSM8581881", "GSM8581881: WT 3dpa L002; Danio rerio; RNA Seq", "GSM8581881 r1", "GSM8581881", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L002 R1 001.fastq.gz   read2PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L002 R2 001.fastq.gz   read3PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L002 I1 001.fastq.gz   read4PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L002 I2 001.fastq.gz", "WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L002_I1_001.fastq.gz WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L002_I2_001.fastq.gz WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L002_R1_001.fastq.gz WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L002_R2_001.fastq.gz", "fastq fastq fastq fastq", 10374062784.0, 75174368.0, "GSM8581881 r1", "0:28 1:90 2:10 3:10", "A:2050663376;C:1389631407;G:1629809936;T:1694915558;N:672843", 28, 90, 10, 10, 2050663376, 1389631407, 1629809936, 1694915558, 672843, "SRX26425390", "SRS22944854", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [34087, "SRR31040142", "SRX26425389", "SRS22944853", "SRP539406", "PRJNA1174776", "cited4a limits CM dedifferentiation and proliferation during zebrafish heart regeneration [snRNA seq]", "GSE279845", "Transcriptome Analysis", "Cardiac regeneration involves interplay of complex interactions between many different cell types  including cardiomyocytes. The exact mechanism that enables cardiomyocytes to undergo dedifferentiation and proliferation to replace lost cells has been under intense study. Here we report single nuclear RNA sequencing profile of the injured zebrafish heart and identified distinct cardiomyocyte populations in the injured heart. These cardiomyocyte populations indicate diverse functions that includes stress response  myofibril assembly  proliferation and contraction. The contracting cardiomyocyte population also involves activation of maturation pathways as an early response to injury. This intriguing finding suggests that constant maintenance of distinctive terminally differentiated cardiomyocyte population is important for cardiac function during regeneration. To test this  we determined that cited4a  a p300/CBP transcriptional co activator  is xxx post injury in mature cardiomyocyte population. Moreover  loss of cited4a mutants showed increased dedifferentiation  proliferation and accelerated heart regeneration. Thus  suppressing cardiomyocyte maturation pathway activity in injured hearts could be an approach to promote heart regeneration. Overall design: Wildtype and cited4a mutant adult heart regeneration study injured by ventricular amputation. Hearts were collected at 3 dy post amputation dpa and uninjured controls UI. Extracted hearts were frozen in liquid Nitrogen and nuclei were isolated as described in methods section.", null, "pubmed:39713454", null, "WT 3dpa L001", "GSM8581880", null, "source name:heart|tissue:heart|genotype:WT|treatment:3 dy post amputation|geo loc name:missing|collection date:missing", "WT 3dpa L001", "Raw FASTQ files were processed and aligned using the Cell Ranger v. 7.0.0 \u201ccount\u201d utility with automatic chemistry detection  aligning to the Danio reiro genome GRCz11.108. Processed counts were read into R v4.2.0 using the Seurat package v4.3.0. Nuclei were filtered for a minimum of 3 cells and 200 RNA features. Samples were filtered to exclude nuclei with abnormally high mitochondrial gene expression and RNA features to remove potential contamination and/or doublets. Assembly: GRCz11.108 Supplementary files format and content: matrix.mtx.gz   Compressed filtered gene count matrix output by Cell Ranger for each cell in the respective sample. Supplementary files format and content: barcodes.tsv.gz   Compressed filtered barcode table output by Cell Ranger with barcodes for each cell in the respective sample. Supplementary files format and content: features.tsv.gz   Compressed feature table output by Cell Ranger with feature names for the ENSEMBL identifiers in the gene count matrix for the respective sample.", "heart", null, "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell 3\u2019 Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "tissue:heart|genotype:WT|treatment:3 dy post amputation", "GSM8581880", "GSM8581880: WT 3dpa L001; Danio rerio; RNA Seq", "GSM8581880 r1", "GSM8581880", "1", "Uninjured control hearts and 3 dy post amputation dpa were extracted  washed in 1x PBS and and flash frozen in liquid Nitrogen. Nuclei were isolated as described in methods section using the Chromium Nuclei Isolation Kit with RNase Inhibitor  PN 1000494. Library was constructed using the Chromium Next GEM Single Cell three prime Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP539406", null, "loader:fastq load.py|options:  readTypes=TBTT   read1PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L001 R1 001.fastq.gz   read2PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L001 R2 001.fastq.gz   read3PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L001 I1 001.fastq.gz   read4PairFiles=WT3dpa 101222 Tsang Multiome GEX LAF3807A41 S5 L001 I2 001.fastq.gz", "WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L001_I1_001.fastq.gz WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L001_I2_001.fastq.gz WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L001_R1_001.fastq.gz WT3dpa_101222_Tsang_Multiome_GEX_LAF3807A41_S5_L001_R2_001.fastq.gz", "fastq fastq fastq fastq", 10577377770.0, 76647665.0, "GSM8581880 r1", "0:28 1:90 2:10 3:10", "A:2089361892;C:1417156705;G:1662751139;T:1728402830;N:617284", 28, 90, 10, 10, 2089361892, 1417156705, 1662751139, 1728402830, 617284, "SRX26425389", "SRS22944853", "SRA1993641", "Cell Biology, University of Pittsburgh", "Cell Biology, University of Pittsburgh", null, null, null, null, null, null, null, null, null, null, null, "B", null, "usable mapping rate", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2024-10-18", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"], [69915, "SRR19176074", "SRX15241415", "SRS12974374", "SRP374910", "PRJNA837476", "An injury associated transient progenitor state in the epicardium mediates heart regeneration", "GSE202836", "Transcriptome Analysis", "Adult zebrafish regenerate heart muscle post severe cardiac damage without xxx scarring. The epicardium  a mesothelial cell sheet covering the vetebrate heart  is activated by injury and supports muscle regeneration through paracrine effects and as a source of multipotent cells. The understudied cellular heterogeneity of the adult epicardium during heart regeneration has constrained the effort in mobilizing the epicardium for heart repair. To dissect epicardial cell states and the underlying mechanisms that lead to successful heart regeneration in zebrafish  we performed single cell RNA sequencing of isolated epicardial cells from the regenerating adult heart and revealed their dynamic cellular heterogeneity. We defined the epithelial and mesenchymal layers of the epicardium and identified a transiently activated epicardial progenitor cell aEPC subpopulation that expresses aldh1a2  ptx3a  col12a1b and marcksb. Upon heart amputation injury  aEPCs emerge from the existing epicardial cells  migrate to enclose the wound  and disappear as regeneration progresses. Genetic  lineage tracing combined with modified RNA labelling confirmed an epithelial mesenchymal transition EMT process of aEPCs and their differentiations to pdgfrb+ mural cells and pdgfra+hapln1a+ mesenchymal fibroblast like cells that support heart regeneration. Genetic ablation of aEPCs blocked wound closure of the injured ventricle  suppressed cardiomyocyte proliferation  and disrupted heart regeneration. Our findings define a transient progenitor state of the adult epicardium that is an indispensable driver of zebrafish heart regeneration and identified ptx3a as a regeneration specific non ontogenetic regulator of the epicardium. Overall design: Single cell RNA sequencing of isolated epicardial cells from uninjured zebrafish hearts and hearts post amputation injury", null, "pubmed:36513650", null, "epicardial cells  scRNA seq", "GSM6133973", null, "source name:heart ventricle|cell type:epicardial cells|tissue:heart ventricle|strain:EK tcf21:nucEGFP|age:6 month|treatment:no treatment", "epicardial cells  scRNA seq", "Demultiplexing  barcoded processing  gene counting and aggregation done with Cell Ranger software v3.0.2 Sample integration batch correction  expression value normalization  clustering  cell type annotation and so on were done with SCTransform  scater  and scran. For more details and the cell type annotation information  see https://github.com/abcwcm/Cao Epicardium Assembly: GRCz10 Supplementary files format and content: Cell Ranger output files barcodes.tsv  features.tsv  matrix.mtx", "heart ventricle", "Heart amputation injury", "Hearts were dissociated into single cells and the epicardial cells were isolated by FACS as described previously PMID 26657776. Library prep was performed according to the manufacturer\u2019s instructions single cell three prime v3 protocol  10x Genomics. Briefly  GCs were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA  which contains an Ilumina R1 primer sequence  Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with  amplified by PCR and the appropriate sized fragments were selected for subsequent library construction. During the library construction Ilumina R2 primer sequence  paired end constructs with P5 and P7 sequences and a sample index were added. Single Cell three prime GEM Gel Bead Kit v3  Chromium Single Cell B Chip Kit", "Standard zebrafish breeding conditions", "cell type:epicardial cells|tissue:heart ventricle|strain:EK tcf21:nucEGFP|age:6 month|treatment:no treatment", "GSM6133973", "GSM6133973: epicardial cells  scRNA seq; Danio rerio; RNA Seq", "GSM6133973 r1", "GSM6133973", "1", "Hearts were dissociated into single cells and the epicardial cells were isolated by FACS as described previously PMID 26657776. Library prep was performed according to the manufacturer's instructions single cell three prime v3 protocol  10x Genomics. Briefly  GCs were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA  which contains an Ilumina R1 primer sequence  Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with  amplified by PCR and the appropriate sized fragments were selected for subsequent library construction. During the library construction Ilumina R2 primer sequence  paired end constructs with P5 and P7 sequences and a sample index were added. Single Cell three prime GEM Gel Bead Kit v3  Chromium Single Cell B Chip Kit", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina HiSeq 4000", null, "SRP374910", null, "loader:fastq load.py", "Sample_Ctrl-epi_S4_L003_I1_001.fastq.gz Sample_Ctrl-epi_S4_L003_R1_001.fastq.gz Sample_Ctrl-epi_S4_L003_R2_001.fastq.gz", "fastq fastq fastq", 4633370394.0, 34577391.0, "GSM6133973 r1", "0:8 1:28 2:98", "A:984571225;C:722411297;G:766373853;T:914389887;N:838056", 8, 28, 98, null, 984571225, 722411297, 766373853, 914389887, 838056, "SRX15241415", "SRS12974374", "SRA1419237", "Applied Bioinformatics Core, Physiology &amp; Biophysics, Weill Cornell Medicine", "Applied Bioinformatics Core, Physiology & Biophysics, Weill Cornell Medicine", 1, 0.90064, null, 0.16053, null, 0.8538, null, 0.51086, null, 98, null, "B", null, "usable mapping rate", "illumina", "hiseq_era", "unknown", "poly_a", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2022-05-12", "Adult", "Adult", "Heart", "Cardiovascular System"], [69916, "SRR19176075", "SRX15241415", "SRS12974374", "SRP374910", "PRJNA837476", "An injury associated transient progenitor state in the epicardium mediates heart regeneration", "GSE202836", "Transcriptome Analysis", "Adult zebrafish regenerate heart muscle post severe cardiac damage without xxx scarring. The epicardium  a mesothelial cell sheet covering the vetebrate heart  is activated by injury and supports muscle regeneration through paracrine effects and as a source of multipotent cells. The understudied cellular heterogeneity of the adult epicardium during heart regeneration has constrained the effort in mobilizing the epicardium for heart repair. To dissect epicardial cell states and the underlying mechanisms that lead to successful heart regeneration in zebrafish  we performed single cell RNA sequencing of isolated epicardial cells from the regenerating adult heart and revealed their dynamic cellular heterogeneity. We defined the epithelial and mesenchymal layers of the epicardium and identified a transiently activated epicardial progenitor cell aEPC subpopulation that expresses aldh1a2  ptx3a  col12a1b and marcksb. Upon heart amputation injury  aEPCs emerge from the existing epicardial cells  migrate to enclose the wound  and disappear as regeneration progresses. Genetic  lineage tracing combined with modified RNA labelling confirmed an epithelial mesenchymal transition EMT process of aEPCs and their differentiations to pdgfrb+ mural cells and pdgfra+hapln1a+ mesenchymal fibroblast like cells that support heart regeneration. Genetic ablation of aEPCs blocked wound closure of the injured ventricle  suppressed cardiomyocyte proliferation  and disrupted heart regeneration. Our findings define a transient progenitor state of the adult epicardium that is an indispensable driver of zebrafish heart regeneration and identified ptx3a as a regeneration specific non ontogenetic regulator of the epicardium. Overall design: Single cell RNA sequencing of isolated epicardial cells from uninjured zebrafish hearts and hearts post amputation injury", null, "pubmed:36513650", null, "epicardial cells  scRNA seq", "GSM6133973", null, "source name:heart ventricle|cell type:epicardial cells|tissue:heart ventricle|strain:EK tcf21:nucEGFP|age:6 month|treatment:no treatment", "epicardial cells  scRNA seq", "Demultiplexing  barcoded processing  gene counting and aggregation done with Cell Ranger software v3.0.2 Sample integration batch correction  expression value normalization  clustering  cell type annotation and so on were done with SCTransform  scater  and scran. For more details and the cell type annotation information  see https://github.com/abcwcm/Cao Epicardium Assembly: GRCz10 Supplementary files format and content: Cell Ranger output files barcodes.tsv  features.tsv  matrix.mtx", "heart ventricle", "Heart amputation injury", "Hearts were dissociated into single cells and the epicardial cells were isolated by FACS as described previously PMID 26657776. Library prep was performed according to the manufacturer\u2019s instructions single cell three prime v3 protocol  10x Genomics. Briefly  GCs were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA  which contains an Ilumina R1 primer sequence  Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with  amplified by PCR and the appropriate sized fragments were selected for subsequent library construction. During the library construction Ilumina R2 primer sequence  paired end constructs with P5 and P7 sequences and a sample index were added. Single Cell three prime GEM Gel Bead Kit v3  Chromium Single Cell B Chip Kit", "Standard zebrafish breeding conditions", "cell type:epicardial cells|tissue:heart ventricle|strain:EK tcf21:nucEGFP|age:6 month|treatment:no treatment", "GSM6133973", "GSM6133973: epicardial cells  scRNA seq; Danio rerio; RNA Seq", "GSM6133973 r1", "GSM6133973", "1", "Hearts were dissociated into single cells and the epicardial cells were isolated by FACS as described previously PMID 26657776. Library prep was performed according to the manufacturer's instructions single cell three prime v3 protocol  10x Genomics. Briefly  GCs were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA  which contains an Ilumina R1 primer sequence  Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with  amplified by PCR and the appropriate sized fragments were selected for subsequent library construction. During the library construction Ilumina R2 primer sequence  paired end constructs with P5 and P7 sequences and a sample index were added. Single Cell three prime GEM Gel Bead Kit v3  Chromium Single Cell B Chip Kit", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina HiSeq 4000", null, "SRP374910", null, "loader:fastq load.py", "Sample_Ctrl-epi_S4_L004_I1_001.fastq.gz Sample_Ctrl-epi_S4_L004_R1_001.fastq.gz Sample_Ctrl-epi_S4_L004_R2_001.fastq.gz", "fastq fastq fastq", 4480363566.0, 33435549.0, "GSM6133973 r2", "0:8 1:28 2:98", "A:951740545;C:698399420;G:741050166;T:884231813;N:1261858", 8, 28, 98, null, 951740545, 698399420, 741050166, 884231813, 1261858, "SRX15241415", "SRS12974374", "SRA1419237", "Applied Bioinformatics Core, Physiology &amp; Biophysics, Weill Cornell Medicine", "Applied Bioinformatics Core, Physiology & Biophysics, Weill Cornell Medicine", 1, 0.90271, null, 0.16115, null, 0.85206, null, 0.50922, null, 98, null, "B", null, "usable mapping rate", "illumina", "hiseq_era", "unknown", "poly_a", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2022-05-12", "Adult", "Adult", "Heart", "Cardiovascular System"], [69917, "SRR19176076", "SRX15241414", "SRS12974373", "SRP374910", "PRJNA837476", "An injury associated transient progenitor state in the epicardium mediates heart regeneration", "GSE202836", "Transcriptome Analysis", "Adult zebrafish regenerate heart muscle post severe cardiac damage without xxx scarring. The epicardium  a mesothelial cell sheet covering the vetebrate heart  is activated by injury and supports muscle regeneration through paracrine effects and as a source of multipotent cells. The understudied cellular heterogeneity of the adult epicardium during heart regeneration has constrained the effort in mobilizing the epicardium for heart repair. To dissect epicardial cell states and the underlying mechanisms that lead to successful heart regeneration in zebrafish  we performed single cell RNA sequencing of isolated epicardial cells from the regenerating adult heart and revealed their dynamic cellular heterogeneity. We defined the epithelial and mesenchymal layers of the epicardium and identified a transiently activated epicardial progenitor cell aEPC subpopulation that expresses aldh1a2  ptx3a  col12a1b and marcksb. Upon heart amputation injury  aEPCs emerge from the existing epicardial cells  migrate to enclose the wound  and disappear as regeneration progresses. Genetic  lineage tracing combined with modified RNA labelling confirmed an epithelial mesenchymal transition EMT process of aEPCs and their differentiations to pdgfrb+ mural cells and pdgfra+hapln1a+ mesenchymal fibroblast like cells that support heart regeneration. Genetic ablation of aEPCs blocked wound closure of the injured ventricle  suppressed cardiomyocyte proliferation  and disrupted heart regeneration. Our findings define a transient progenitor state of the adult epicardium that is an indispensable driver of zebrafish heart regeneration and identified ptx3a as a regeneration specific non ontogenetic regulator of the epicardium. Overall design: Single cell RNA sequencing of isolated epicardial cells from uninjured zebrafish hearts and hearts post amputation injury", null, "pubmed:36513650", null, "7 dy post amputation  epicardial cells  scRNA seq", "GSM6133972", null, "source name:heart ventricle|cell type:epicardial cells|tissue:heart ventricle|strain:EK tcf21:nucEGFP|age:6 month|treatment:partial ventricular amputation", "7 dy post amputation  epicardial cells  scRNA seq", "Demultiplexing  barcoded processing  gene counting and aggregation done with Cell Ranger software v3.0.2 Sample integration batch correction  expression value normalization  clustering  cell type annotation and so on were done with SCTransform  scater  and scran. For more details and the cell type annotation information  see https://github.com/abcwcm/Cao Epicardium Assembly: GRCz10 Supplementary files format and content: Cell Ranger output files barcodes.tsv  features.tsv  matrix.mtx", "heart ventricle", "Heart amputation injury", "Hearts were dissociated into single cells and the epicardial cells were isolated by FACS as described previously PMID 26657776. Library prep was performed according to the manufacturer\u2019s instructions single cell three prime v3 protocol  10x Genomics. Briefly  GCs were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA  which contains an Ilumina R1 primer sequence  Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with  amplified by PCR and the appropriate sized fragments were selected for subsequent library construction. During the library construction Ilumina R2 primer sequence  paired end constructs with P5 and P7 sequences and a sample index were added. Single Cell three prime GEM Gel Bead Kit v3  Chromium Single Cell B Chip Kit", "Standard zebrafish breeding conditions", "cell type:epicardial cells|tissue:heart ventricle|strain:EK tcf21:nucEGFP|age:6 month|treatment:partial ventricular amputation", "GSM6133972", "GSM6133972: 7 dy post amputation  epicardial cells  scRNA seq; Danio rerio; RNA Seq", "GSM6133972 r1", "GSM6133972", "1", "Hearts were dissociated into single cells and the epicardial cells were isolated by FACS as described previously PMID 26657776. Library prep was performed according to the manufacturer's instructions single cell three prime v3 protocol  10x Genomics. Briefly  GCs were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA  which contains an Ilumina R1 primer sequence  Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with  amplified by PCR and the appropriate sized fragments were selected for subsequent library construction. During the library construction Ilumina R2 primer sequence  paired end constructs with P5 and P7 sequences and a sample index were added. Single Cell three prime GEM Gel Bead Kit v3  Chromium Single Cell B Chip Kit", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina HiSeq 4000", null, "SRP374910", null, "loader:fastq load.py", "Sample_7dpa-epi_S6_L003_I1_001.fastq.gz Sample_7dpa-epi_S6_L003_R1_001.fastq.gz Sample_7dpa-epi_S6_L003_R2_001.fastq.gz", "fastq fastq fastq", 5483878712.0, 40924468.0, "GSM6133972 r1", "0:8 1:28 2:98", "A:1169232674;C:853457403;G:903568545;T:1083342263;N:996979", 8, 28, 98, null, 1169232674, 853457403, 903568545, 1083342263, 996979, "SRX15241414", "SRS12974373", "SRA1419237", "Applied Bioinformatics Core, Physiology &amp; Biophysics, Weill Cornell Medicine", "Applied Bioinformatics Core, Physiology & Biophysics, Weill Cornell Medicine", 1, 0.89795, null, 0.16592, null, 0.84646, null, 0.51389, null, 98, null, "B", null, "usable mapping rate", "illumina", "hiseq_era", "unknown", "poly_a", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2022-05-12", "Adult", "Adult", "Heart", "Cardiovascular System"], [69918, "SRR19176077", "SRX15241414", "SRS12974373", "SRP374910", "PRJNA837476", "An injury associated transient progenitor state in the epicardium mediates heart regeneration", "GSE202836", "Transcriptome Analysis", "Adult zebrafish regenerate heart muscle post severe cardiac damage without xxx scarring. The epicardium  a mesothelial cell sheet covering the vetebrate heart  is activated by injury and supports muscle regeneration through paracrine effects and as a source of multipotent cells. The understudied cellular heterogeneity of the adult epicardium during heart regeneration has constrained the effort in mobilizing the epicardium for heart repair. To dissect epicardial cell states and the underlying mechanisms that lead to successful heart regeneration in zebrafish  we performed single cell RNA sequencing of isolated epicardial cells from the regenerating adult heart and revealed their dynamic cellular heterogeneity. We defined the epithelial and mesenchymal layers of the epicardium and identified a transiently activated epicardial progenitor cell aEPC subpopulation that expresses aldh1a2  ptx3a  col12a1b and marcksb. Upon heart amputation injury  aEPCs emerge from the existing epicardial cells  migrate to enclose the wound  and disappear as regeneration progresses. Genetic  lineage tracing combined with modified RNA labelling confirmed an epithelial mesenchymal transition EMT process of aEPCs and their differentiations to pdgfrb+ mural cells and pdgfra+hapln1a+ mesenchymal fibroblast like cells that support heart regeneration. Genetic ablation of aEPCs blocked wound closure of the injured ventricle  suppressed cardiomyocyte proliferation  and disrupted heart regeneration. Our findings define a transient progenitor state of the adult epicardium that is an indispensable driver of zebrafish heart regeneration and identified ptx3a as a regeneration specific non ontogenetic regulator of the epicardium. Overall design: Single cell RNA sequencing of isolated epicardial cells from uninjured zebrafish hearts and hearts post amputation injury", null, "pubmed:36513650", null, "7 dy post amputation  epicardial cells  scRNA seq", "GSM6133972", null, "source name:heart ventricle|cell type:epicardial cells|tissue:heart ventricle|strain:EK tcf21:nucEGFP|age:6 month|treatment:partial ventricular amputation", "7 dy post amputation  epicardial cells  scRNA seq", "Demultiplexing  barcoded processing  gene counting and aggregation done with Cell Ranger software v3.0.2 Sample integration batch correction  expression value normalization  clustering  cell type annotation and so on were done with SCTransform  scater  and scran. For more details and the cell type annotation information  see https://github.com/abcwcm/Cao Epicardium Assembly: GRCz10 Supplementary files format and content: Cell Ranger output files barcodes.tsv  features.tsv  matrix.mtx", "heart ventricle", "Heart amputation injury", "Hearts were dissociated into single cells and the epicardial cells were isolated by FACS as described previously PMID 26657776. Library prep was performed according to the manufacturer\u2019s instructions single cell three prime v3 protocol  10x Genomics. Briefly  GCs were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA  which contains an Ilumina R1 primer sequence  Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with  amplified by PCR and the appropriate sized fragments were selected for subsequent library construction. During the library construction Ilumina R2 primer sequence  paired end constructs with P5 and P7 sequences and a sample index were added. Single Cell three prime GEM Gel Bead Kit v3  Chromium Single Cell B Chip Kit", "Standard zebrafish breeding conditions", "cell type:epicardial cells|tissue:heart ventricle|strain:EK tcf21:nucEGFP|age:6 month|treatment:partial ventricular amputation", "GSM6133972", "GSM6133972: 7 dy post amputation  epicardial cells  scRNA seq; Danio rerio; RNA Seq", "GSM6133972 r1", "GSM6133972", "1", "Hearts were dissociated into single cells and the epicardial cells were isolated by FACS as described previously PMID 26657776. Library prep was performed according to the manufacturer's instructions single cell three prime v3 protocol  10x Genomics. Briefly  GCs were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA  which contains an Ilumina R1 primer sequence  Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with  amplified by PCR and the appropriate sized fragments were selected for subsequent library construction. During the library construction Ilumina R2 primer sequence  paired end constructs with P5 and P7 sequences and a sample index were added. Single Cell three prime GEM Gel Bead Kit v3  Chromium Single Cell B Chip Kit", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina HiSeq 4000", null, "SRP374910", null, "loader:fastq load.py", "Sample_7dpa-epi_S6_L004_I1_001.fastq.gz Sample_7dpa-epi_S6_L004_R1_001.fastq.gz Sample_7dpa-epi_S6_L004_R2_001.fastq.gz", "fastq fastq fastq", 5305140534.0, 39590601.0, "GSM6133972 r2", "0:8 1:28 2:98", "A:1130899517;C:825440203;G:874010632;T:1048032074;N:1496472", 8, 28, 98, null, 1130899517, 825440203, 874010632, 1048032074, 1496472, "SRX15241414", "SRS12974373", "SRA1419237", "Applied Bioinformatics Core, Physiology &amp; Biophysics, Weill Cornell Medicine", "Applied Bioinformatics Core, Physiology & Biophysics, Weill Cornell Medicine", 1, 0.89954, null, 0.16556, null, 0.84299, null, 0.5185, null, 98, null, "B", null, "usable mapping rate", "illumina", "hiseq_era", "unknown", "poly_a", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2022-05-12", "Adult", "Adult", "Heart", "Cardiovascular System"], [69919, "SRR19176078", "SRX15241413", "SRS12974372", "SRP374910", "PRJNA837476", "An injury associated transient progenitor state in the epicardium mediates heart regeneration", "GSE202836", "Transcriptome Analysis", "Adult zebrafish regenerate heart muscle post severe cardiac damage without xxx scarring. The epicardium  a mesothelial cell sheet covering the vetebrate heart  is activated by injury and supports muscle regeneration through paracrine effects and as a source of multipotent cells. The understudied cellular heterogeneity of the adult epicardium during heart regeneration has constrained the effort in mobilizing the epicardium for heart repair. To dissect epicardial cell states and the underlying mechanisms that lead to successful heart regeneration in zebrafish  we performed single cell RNA sequencing of isolated epicardial cells from the regenerating adult heart and revealed their dynamic cellular heterogeneity. We defined the epithelial and mesenchymal layers of the epicardium and identified a transiently activated epicardial progenitor cell aEPC subpopulation that expresses aldh1a2  ptx3a  col12a1b and marcksb. Upon heart amputation injury  aEPCs emerge from the existing epicardial cells  migrate to enclose the wound  and disappear as regeneration progresses. Genetic  lineage tracing combined with modified RNA labelling confirmed an epithelial mesenchymal transition EMT process of aEPCs and their differentiations to pdgfrb+ mural cells and pdgfra+hapln1a+ mesenchymal fibroblast like cells that support heart regeneration. Genetic ablation of aEPCs blocked wound closure of the injured ventricle  suppressed cardiomyocyte proliferation  and disrupted heart regeneration. Our findings define a transient progenitor state of the adult epicardium that is an indispensable driver of zebrafish heart regeneration and identified ptx3a as a regeneration specific non ontogenetic regulator of the epicardium. Overall design: Single cell RNA sequencing of isolated epicardial cells from uninjured zebrafish hearts and hearts post amputation injury", null, "pubmed:36513650", null, "3 dy post amputation  epicardial cells  scRNA seq", "GSM6133971", null, "source name:heart ventricle|cell type:epicardial cells|tissue:heart ventricle|strain:EK tcf21:nucEGFP|age:6 month|treatment:partial ventricular amputation", "3 dy post amputation  epicardial cells  scRNA seq", "Demultiplexing  barcoded processing  gene counting and aggregation done with Cell Ranger software v3.0.2 Sample integration batch correction  expression value normalization  clustering  cell type annotation and so on were done with SCTransform  scater  and scran. For more details and the cell type annotation information  see https://github.com/abcwcm/Cao Epicardium Assembly: GRCz10 Supplementary files format and content: Cell Ranger output files barcodes.tsv  features.tsv  matrix.mtx", "heart ventricle", "Heart amputation injury", "Hearts were dissociated into single cells and the epicardial cells were isolated by FACS as described previously PMID 26657776. Library prep was performed according to the manufacturer\u2019s instructions single cell three prime v3 protocol  10x Genomics. Briefly  GCs were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA  which contains an Ilumina R1 primer sequence  Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with  amplified by PCR and the appropriate sized fragments were selected for subsequent library construction. During the library construction Ilumina R2 primer sequence  paired end constructs with P5 and P7 sequences and a sample index were added. Single Cell three prime GEM Gel Bead Kit v3  Chromium Single Cell B Chip Kit", "Standard zebrafish breeding conditions", "cell type:epicardial cells|tissue:heart ventricle|strain:EK tcf21:nucEGFP|age:6 month|treatment:partial ventricular amputation", "GSM6133971", "GSM6133971: 3 dy post amputation  epicardial cells  scRNA seq; Danio rerio; RNA Seq", "GSM6133971 r1", "GSM6133971", "1", "Hearts were dissociated into single cells and the epicardial cells were isolated by FACS as described previously PMID 26657776. Library prep was performed according to the manufacturer's instructions single cell three prime v3 protocol  10x Genomics. Briefly  GCs were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA  which contains an Ilumina R1 primer sequence  Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with  amplified by PCR and the appropriate sized fragments were selected for subsequent library construction. During the library construction Ilumina R2 primer sequence  paired end constructs with P5 and P7 sequences and a sample index were added. Single Cell three prime GEM Gel Bead Kit v3  Chromium Single Cell B Chip Kit", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina HiSeq 4000", null, "SRP374910", null, "loader:fastq load.py", "Sample_3dpa-epi_S5_L003_I1_001.fastq.gz Sample_3dpa-epi_S5_L003_R1_001.fastq.gz Sample_3dpa-epi_S5_L003_R2_001.fastq.gz", "fastq fastq fastq", 3420182098.0, 25523747.0, "GSM6133971 r1", "0:8 1:28 2:98", "A:725961712;C:534407941;G:569278520;T:671057008;N:622025", 8, 28, 98, null, 725961712, 534407941, 569278520, 671057008, 622025, "SRX15241413", "SRS12974372", "SRA1419237", "Applied Bioinformatics Core, Physiology &amp; Biophysics, Weill Cornell Medicine", "Applied Bioinformatics Core, Physiology & Biophysics, Weill Cornell Medicine", 1, 0.91005, null, 0.12512, null, 0.83157, null, 0.52354, null, 98, null, "B", null, "usable mapping rate", "illumina", "hiseq_era", "unknown", "poly_a", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2022-05-12", "Adult", "Adult", "Heart", "Cardiovascular System"], [69920, "SRR19176079", "SRX15241413", "SRS12974372", "SRP374910", "PRJNA837476", "An injury associated transient progenitor state in the epicardium mediates heart regeneration", "GSE202836", "Transcriptome Analysis", "Adult zebrafish regenerate heart muscle post severe cardiac damage without xxx scarring. The epicardium  a mesothelial cell sheet covering the vetebrate heart  is activated by injury and supports muscle regeneration through paracrine effects and as a source of multipotent cells. The understudied cellular heterogeneity of the adult epicardium during heart regeneration has constrained the effort in mobilizing the epicardium for heart repair. To dissect epicardial cell states and the underlying mechanisms that lead to successful heart regeneration in zebrafish  we performed single cell RNA sequencing of isolated epicardial cells from the regenerating adult heart and revealed their dynamic cellular heterogeneity. We defined the epithelial and mesenchymal layers of the epicardium and identified a transiently activated epicardial progenitor cell aEPC subpopulation that expresses aldh1a2  ptx3a  col12a1b and marcksb. Upon heart amputation injury  aEPCs emerge from the existing epicardial cells  migrate to enclose the wound  and disappear as regeneration progresses. Genetic  lineage tracing combined with modified RNA labelling confirmed an epithelial mesenchymal transition EMT process of aEPCs and their differentiations to pdgfrb+ mural cells and pdgfra+hapln1a+ mesenchymal fibroblast like cells that support heart regeneration. Genetic ablation of aEPCs blocked wound closure of the injured ventricle  suppressed cardiomyocyte proliferation  and disrupted heart regeneration. Our findings define a transient progenitor state of the adult epicardium that is an indispensable driver of zebrafish heart regeneration and identified ptx3a as a regeneration specific non ontogenetic regulator of the epicardium. Overall design: Single cell RNA sequencing of isolated epicardial cells from uninjured zebrafish hearts and hearts post amputation injury", null, "pubmed:36513650", null, "3 dy post amputation  epicardial cells  scRNA seq", "GSM6133971", null, "source name:heart ventricle|cell type:epicardial cells|tissue:heart ventricle|strain:EK tcf21:nucEGFP|age:6 month|treatment:partial ventricular amputation", "3 dy post amputation  epicardial cells  scRNA seq", "Demultiplexing  barcoded processing  gene counting and aggregation done with Cell Ranger software v3.0.2 Sample integration batch correction  expression value normalization  clustering  cell type annotation and so on were done with SCTransform  scater  and scran. For more details and the cell type annotation information  see https://github.com/abcwcm/Cao Epicardium Assembly: GRCz10 Supplementary files format and content: Cell Ranger output files barcodes.tsv  features.tsv  matrix.mtx", "heart ventricle", "Heart amputation injury", "Hearts were dissociated into single cells and the epicardial cells were isolated by FACS as described previously PMID 26657776. Library prep was performed according to the manufacturer\u2019s instructions single cell three prime v3 protocol  10x Genomics. Briefly  GCs were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA  which contains an Ilumina R1 primer sequence  Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with  amplified by PCR and the appropriate sized fragments were selected for subsequent library construction. During the library construction Ilumina R2 primer sequence  paired end constructs with P5 and P7 sequences and a sample index were added. Single Cell three prime GEM Gel Bead Kit v3  Chromium Single Cell B Chip Kit", "Standard zebrafish breeding conditions", "cell type:epicardial cells|tissue:heart ventricle|strain:EK tcf21:nucEGFP|age:6 month|treatment:partial ventricular amputation", "GSM6133971", "GSM6133971: 3 dy post amputation  epicardial cells  scRNA seq; Danio rerio; RNA Seq", "GSM6133971 r1", "GSM6133971", "1", "Hearts were dissociated into single cells and the epicardial cells were isolated by FACS as described previously PMID 26657776. Library prep was performed according to the manufacturer's instructions single cell three prime v3 protocol  10x Genomics. Briefly  GCs were resuspended in the master mix and loaded together with partitioning oil and gel beads into the chip to generate the gel bead in emulsion GEM. The poly A RNA from the cell lysate contained in every single GEM was retrotranscripted to cDNA  which contains an Ilumina R1 primer sequence  Unique Molecular Identifier UMI and the 10x Barcode. The pooled barcoded cDNA was then cleaned up with  amplified by PCR and the appropriate sized fragments were selected for subsequent library construction. During the library construction Ilumina R2 primer sequence  paired end constructs with P5 and P7 sequences and a sample index were added. Single Cell three prime GEM Gel Bead Kit v3  Chromium Single Cell B Chip Kit", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina HiSeq 4000", null, "SRP374910", null, "loader:fastq load.py", "Sample_3dpa-epi_S5_L004_I1_001.fastq.gz Sample_3dpa-epi_S5_L004_R1_001.fastq.gz Sample_3dpa-epi_S5_L004_R2_001.fastq.gz", "fastq fastq fastq", 3308918146.0, 24693419.0, "GSM6133971 r2", "0:8 1:28 2:98", "A:702176844;C:516923672;G:550752601;T:649169475;N:932470", 8, 28, 98, null, 702176844, 516923672, 550752601, 649169475, 932470, "SRX15241413", "SRS12974372", "SRA1419237", "Applied Bioinformatics Core, Physiology &amp; Biophysics, Weill Cornell Medicine", "Applied Bioinformatics Core, Physiology & Biophysics, Weill Cornell Medicine", 1, 0.91154, null, 0.12734, null, 0.82848, null, 0.54328, null, 98, null, "B", null, "usable mapping rate", "illumina", "hiseq_era", "unknown", "poly_a", "unknown", "sc", "single_cell_droplet", "10x", null, "United States", "2022-05-12", "Adult", "Adult", "Heart", "Cardiovascular System"], [70092, "SRR24739157", "SRX20516499", "SRS17826365", "SRP377666", "PRJNA843735", "Alpha 1 adrenergic signaling drives cardiac regeneration through activation of extracellular matrix remodeling transcriptional program in macrophages", "GSE205103", "Transcriptome Analysis", "Autonomic drive plays a pivotal role in cardiac regeneration. Sympathetic or cholinergic denervation impairs myocardial regrowth in neonatal mouse and zebrafish hearts. Here  we uncovered the mechanistic underpinning of adrenergic signaling in regenerative repair of the heart to be critically dependent on immunomodulation. Through pharmacological and genetic manipulations  we identified adrenergic receptor alpha 1 as a key regulator of macrophage phenotypic diversification following myocardial infarction in zebrafish. Single cell transcriptomics revealed that the receptor signals activation of an 'extracellular matrix remodeling' transcriptional program characterized by upregulation of matrix proteins and matrix modifying enzymes in a macrophage subset. Functionally  adrenergic receptor alpha 1 activated macrophages regulate fibrotic response of the heart by mediating collagenous extracellular matrix turnover and myofibroblast activation  allowing vascularization and cardiomyocyte cell cycle entry at the infarcted lesion. These findings not only unravel the mechanism of adrenergic signaling in macrophage phenotypic and functional determination  but also highlight the potential of neural modulation for regulation of fibrosis and coordination of myocardial regenerative response. Overall design: Zebrafish hearts subjected to cryoinjury were collected at 7 dpi  dissociated and live cells  sorted by FACS  analyzed with scRNAseq", null, "pubmed:37875117", null, "control heart  cryoinjured", "GSM7427915", null, "source name:heart|strain:AB/TU|time:7 xxx post injury|tissue:heart|genotype:TgBACcsf1ra:GAL4 VP16i186; TgUAS:NTR mCherryc264|treatment:cryoinjury|geo loc name:missing|collection date:missing", "control heart  cryoinjured", "the steps until acquiring the fastq files demultiplexing  conversion to fastq were done by the Genomics technology platform in Max Delbruck Centrum. Then Cell Ranger software v6.0.1 was used for counting  alignment with the fastq files. https://support.10xgenomics.com/single cell gene expression/software/pipelines/latest/what is cell ranger then Seu Assembly: GRCz11 release 104 Supplementary files format and content: Tab separated values files and matrix files", "heart", null, "zebrafish with TgBACcsf1ra:GAL4 VP16i186; TgUAS:NTR mCherryc264  transgenes subjected to cryoinjury and hearts were collected at 7 dpi and transferred into dissociation solution containing 0.26 U/ml LiberaseTM enzyme mixture Sigma and 1X Pluronic F 68 ThermoFisher in HBSS. Hearts were incubated in dissociation solution for 30 minutes with shaking at 750 rpm at 37\u00b0C with intermittent pipetting every 5 minutes. Live cells were sorted by FACS. Library was constructed according to the manufacterer\u2019s instructions of Chromium Single Cell three prime Reagent Kits User Guide v3.1 Chemistry. library preparation was done by Genomics technology platform in Max Delbruck Centrum", null, "strain:AB/TU|time:7 xxx post injury|tissue:heart|genotype:TgBACcsf1ra:GAL4 VP16i186; TgUAS:NTR mCherryc264|treatment:cryoinjury", "GSM7427915", "GSM7427915: control heart  cryoinjured; Danio rerio; RNA Seq", "GSM7427915 r1", "GSM7427915", "1", "zebrafish with TgBACcsf1ra:GAL4 VP16i186; TgUAS:NTR mCherryc264  transgenes subjected to cryoinjury and hearts were collected at 7 dpi and transferred into dissociation solution containing 0.26 U/ml LiberaseTM enzyme mixture Sigma and 1X Pluronic F 68 ThermoFisher in HBSS. Hearts were incubated in dissociation solution for 30 minutes with shaking at 750 rpm at 37\u00b0C with intermittent pipetting every 5 minutes. Live cells were sorted by FACS. Library was constructed according to the manufacterer's instructions of Chromium Single Cell three prime Reagent Kits User Guide v3.1 Chemistry. library preparation was done by Genomics technology platform in Max Delbruck Centrum", null, "RNA-Seq", "TRANSCRIPTOMIC SINGLE CELL", "cDNA", "PAIRED", "ILLUMINA", "Illumina NovaSeq 6000", null, "SRP377666", null, "loader:fastq load.py", "P1792_SP106_009_S1_L001_R1_001.fastq.gz P1792_SP106_009_S1_L001_R2_001.fastq.gz", "fastq fastq", 44106695018.0, 373785551.0, "GSM7427915 r1", "0:28 1:90", "A:11119116130;C:11277976932;G:10463548412;T:11244752649;N:1300895", 28, 90, null, null, 11119116130, 11277976932, 10463548412, 11244752649, 1300895, "SRX20516499", "SRS17826365", "SRA1644267", "Max Delbruck Centrum", "Max Delbruck Centrum", 2, 0.00282, 0.92876, 0.0008, 0.04739, 0.99669, 0.89246, 0.3378, 0.50554, 28, 90, "T", "B", "sc-like readlen", "illumina", "novaseq_era", "unknown", "cdna_unspecified", "unknown", "sc", "single_cell_droplet", "10x", null, "Germany", "2023-05-25", "Undetermined", "Undetermined", "Heart", "Cardiovascular System"]], "truncated": false, "filtered_table_rows_count": 188, "expanded_columns": [], "expandable_columns": [], "columns": ["rowid", "run.accession", "experiment.accession", "sample.accession", "study.accession", "bioproject", "study.title", "study.alias", "study.type", "study.abstract", "study.attributes", "study.PMIDs", "sample.description", "sample.title", "sample.alias", "sample.centername", "sample.attributes", "GEOsample.title", "GEOsample.dataprocessing", "GEOsample.source", "GEOsample.treatmentprotocol", "GEOsample.extractprotocol", "GEOsample.growthprotocol", "GEOsample.characteristics", "GEOsample.accession", "experiment.title", "experiment.alias", "experiment.library_name", "experiment.design_description", "experiment.library_construction_protocol", "experiment.attributes", "experiment.library_strategy", "experiment.library_source", "experiment.library_selection", "experiment.library_layout", "experiment.platform", "experiment.instrument_model", "experiment.spot_descriptor", "experiment.study_ref", "run.title", "run.attributes", "run.filename", "run.semantic_name", "run.total_bases", "run.total_spots", "run.alias", "run.read_lengths", "run.base_counts", "run.r1_length", "run.r2_length", "run.r3_length", "run.r4_length", "run.Acount", "run.Ccount", "run.Gcount", "run.Tcount", "run.Ncount", "run.experiment", "run.pool_member", "submission.accession", "submission.srasource", "submission.bioprojectsource", "seqdetective.n_mates", "seqdetective.mapping_rate.mate1", "seqdetective.mapping_rate.mate2", "seqdetective.nofeature_rate.mate1", "seqdetective.nofeature_rate.mate2", "seqdetective.sparsity.mate1", "seqdetective.sparsity.mate2", "seqdetective.pos_strand_rate.mate1", "seqdetective.pos_strand_rate.mate2", "seqdetective.readlen.mate1", "seqdetective.readlen.mate2", "seqdetective.judgement.mate1", "seqdetective.judgement.mate2", "seqdetective.judgement.reason", "platform_family", "instrument_generation", "read_bias", "selection_class", "prep_kit", "sc_or_bulk", "tech_class", "technology", "tech_variant", "submission.bioprojectsource.country", "earliest_date", "devstage_curation", "devstage_curation_coarse", "tissue_curation", "tissue_curation_coarse"], "primary_keys": [], "units": {}, "query": {"sql": "select rowid, [run.accession], [experiment.accession], [sample.accession], [study.accession], bioproject, [study.title], [study.alias], [study.type], [study.abstract], [study.attributes], [study.PMIDs], [sample.description], [sample.title], [sample.alias], [sample.centername], [sample.attributes], [GEOsample.title], [GEOsample.dataprocessing], [GEOsample.source], [GEOsample.treatmentprotocol], [GEOsample.extractprotocol], [GEOsample.growthprotocol], [GEOsample.characteristics], [GEOsample.accession], [experiment.title], [experiment.alias], [experiment.library_name], [experiment.design_description], [experiment.library_construction_protocol], [experiment.attributes], [experiment.library_strategy], [experiment.library_source], [experiment.library_selection], [experiment.library_layout], [experiment.platform], [experiment.instrument_model], [experiment.spot_descriptor], [experiment.study_ref], [run.title], [run.attributes], [run.filename], [run.semantic_name], [run.total_bases], [run.total_spots], [run.alias], [run.read_lengths], [run.base_counts], [run.r1_length], [run.r2_length], [run.r3_length], [run.r4_length], [run.Acount], [run.Ccount], [run.Gcount], [run.Tcount], [run.Ncount], [run.experiment], [run.pool_member], [submission.accession], [submission.srasource], [submission.bioprojectsource], [seqdetective.n_mates], [seqdetective.mapping_rate.mate1], [seqdetective.mapping_rate.mate2], [seqdetective.nofeature_rate.mate1], [seqdetective.nofeature_rate.mate2], [seqdetective.sparsity.mate1], [seqdetective.sparsity.mate2], [seqdetective.pos_strand_rate.mate1], [seqdetective.pos_strand_rate.mate2], [seqdetective.readlen.mate1], [seqdetective.readlen.mate2], [seqdetective.judgement.mate1], [seqdetective.judgement.mate2], [seqdetective.judgement.reason], platform_family, instrument_generation, read_bias, selection_class, prep_kit, sc_or_bulk, tech_class, technology, tech_variant, [submission.bioprojectsource.country], earliest_date, devstage_curation, devstage_curation_coarse, tissue_curation, tissue_curation_coarse from run_metadata where \"experiment.library_selection\" = :p0 and \"experiment.library_source\" = :p1 and \"tissue_curation\" = :p2 order by rowid limit 101", "params": {"p0": "cDNA", "p1": "TRANSCRIPTOMIC SINGLE CELL", "p2": "Heart"}}, "facet_results": {"experiment.library_strategy": {"name": "experiment.library_strategy", "type": "column", "hideable": false, "toggle_url": "/metadata/run_metadata.json?experiment.library_selection=cDNA&experiment.library_source=TRANSCRIPTOMIC+SINGLE+CELL&tissue_curation=Heart", "results": [{"value": "RNA-Seq", "label": "RNA-Seq", "count": 188, "toggle_url": "http://metadata.rnaquarium.org/metadata/run_metadata.json?experiment.library_selection=cDNA&experiment.library_source=TRANSCRIPTOMIC+SINGLE+CELL&tissue_curation=Heart&experiment.library_strategy=RNA-Seq", "selected": false}], "truncated": false}, "experiment.library_source": {"name": "experiment.library_source", "type": "column", "hideable": false, "toggle_url": "/metadata/run_metadata.json?experiment.library_selection=cDNA&experiment.library_source=TRANSCRIPTOMIC+SINGLE+CELL&tissue_curation=Heart", "results": [{"value": "TRANSCRIPTOMIC SINGLE CELL", "label": "TRANSCRIPTOMIC SINGLE CELL", "count": 188, "toggle_url": "http://metadata.rnaquarium.org/metadata/run_metadata.json?experiment.library_selection=cDNA&tissue_curation=Heart", "selected": true}], "truncated": false}, "experiment.library_selection": {"name": "experiment.library_selection", "type": "column", "hideable": false, "toggle_url": "/metadata/run_metadata.json?experiment.library_selection=cDNA&experiment.library_source=TRANSCRIPTOMIC+SINGLE+CELL&tissue_curation=Heart", "results": [{"value": "cDNA", "label": "cDNA", "count": 188, "toggle_url": "http://metadata.rnaquarium.org/metadata/run_metadata.json?experiment.library_source=TRANSCRIPTOMIC+SINGLE+CELL&tissue_curation=Heart", "selected": true}], "truncated": false}, "experiment.library_layout": {"name": "experiment.library_layout", "type": "column", "hideable": false, "toggle_url": "/metadata/run_metadata.json?experiment.library_selection=cDNA&experiment.library_source=TRANSCRIPTOMIC+SINGLE+CELL&tissue_curation=Heart", "results": [{"value": "PAIRED", "label": "PAIRED", "count": 188, "toggle_url": "http://metadata.rnaquarium.org/metadata/run_metadata.json?experiment.library_selection=cDNA&experiment.library_source=TRANSCRIPTOMIC+SINGLE+CELL&tissue_curation=Heart&experiment.library_layout=PAIRED", "selected": false}], "truncated": false}, "experiment.platform": {"name": "experiment.platform", "type": "column", "hideable": false, "toggle_url": "/metadata/run_metadata.json?experiment.library_selection=cDNA&experiment.library_source=TRANSCRIPTOMIC+SINGLE+CELL&tissue_curation=Heart", "results": [{"value": "ILLUMINA", "label": "ILLUMINA", "count": 188, "toggle_url": "http://metadata.rnaquarium.org/metadata/run_metadata.json?experiment.library_selection=cDNA&experiment.library_source=TRANSCRIPTOMIC+SINGLE+CELL&tissue_curation=Heart&experiment.platform=ILLUMINA", "selected": false}], "truncated": false}, "devstage_curation_coarse": {"name": "devstage_curation_coarse", "type": "column", "hideable": false, "toggle_url": "/metadata/run_metadata.json?experiment.library_selection=cDNA&experiment.library_source=TRANSCRIPTOMIC+SINGLE+CELL&tissue_curation=Heart", "results": [{"value": "Adult", "label": "Adult", "count": 77, "toggle_url": 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