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 11017,ERR9750937,ERX9298876,ERS12023662,ERP137743,PRJEB52989,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E-MTAB-10643,Transcriptome Analysis,Adult zebrafish hearts have the ability to regenerate. The roles of non myocytes in this process have remained elusive. Here we have performed 2 scRNAseq experiments on interstitial cells. Experiment 1 E1 included interstitial cells obtained from uninjured regenerating 3 days 7 days and 14 days post apical amputation. Experiment 2 E2 included cells from uninjured sham operated abdomen opened and regenerating 3 dy post amputation with and without xxx inhibitor NSC40520 treatment. Cells were obtained by heart dissection followed by enzymatic dissociation and FACS sorting of single viable nucleated cells.,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,,Protocols: Zebrafish were euthanized in tricaine and hearts were extracted in PBS Hearts were pooled and pre digested for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum. The heart was exposed and approximately 20% of the ventricle removed Zebrafish were treated with MMP inhibitor NSC405020 for three days following surgery. Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.,Expt 2 Uninjured,SAMEA14418104,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.",ENA first public:2022 05 20|ENA last update:2022 05 20|External Id:SAMEA14418104|INSDC center alias:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC center name:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC first public:2022 05 20T16:17:49Z|INSDC last update:2022 05 20T16:17:49Z|INSDC status:public|Submitter Id:E MTAB 10643:Expt 2 Uninjured|age:6|broker name:ArrayExpress|cell type:interstitial cell|common name:zebrafish|developmental stage:adult|genotype:wild type genotype|organism part:heart|sample name:E MTAB 10643:Expt 2 Uninjured|sex:male|strain:AB,,,,,,,,,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E MTAB 10643:Expt 2 Uninjured p,Expt 2 Uninjured p,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,"Zebrafish were euthanized in tricaine and hearts were extracted in PBS ""Hearts were pooled and """"pre digested"""" for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum."" The heart was exposed and approximately 20% of the ventricle removed Zebrafish were treated with MMP inhibitor NSC405020 for three days following surgery. Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.",Experimental Factor: injury:n1|Experimental Factor: treatment:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina NovaSeq 6000,,ERP137743,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,E2_Uninjured_S2_L002_I1_001.fastq.gz E2_Uninjured_S2_L002_I2_001.fastq.gz E2_Uninjured_S2_L002_R1_001.fastq.gz E2_Uninjured_S2_L002_R2_001.fastq.gz,fastq fastq fastq fastq,9325673775.0,69079065.0,E MTAB 10643:Expt 2 Uninjured,0:10 1:10 2:28 3:87,A:1619571910;C:1420805235;G:1471531128;T:1496998088;N:972294,10,10,28,87,1619571910,1420805235,1471531128,1496998088,972294,ERX9298876,ERS12023662,ERA14538536,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive","IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive",1,0.93798,,0.11364,,0.84843,,0.53531,,87,,B,,usable mapping rate,illumina,novaseq_era,3prime,poly_a,unknown,sc,single_cell_droplet,10x,,France,2022-05-20,Adult,Adult,Heart,Cardiovascular System 11018,ERR9750936,ERX9298875,ERS12023661,ERP137743,PRJEB52989,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E-MTAB-10643,Transcriptome Analysis,Adult zebrafish hearts have the ability to regenerate. The roles of non myocytes in this process have remained elusive. Here we have performed 2 scRNAseq experiments on interstitial cells. Experiment 1 E1 included interstitial cells obtained from uninjured regenerating 3 days 7 days and 14 days post apical amputation. Experiment 2 E2 included cells from uninjured sham operated abdomen opened and regenerating 3 dy post amputation with and without xxx inhibitor NSC40520 treatment. Cells were obtained by heart dissection followed by enzymatic dissociation and FACS sorting of single viable nucleated cells.,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,,Protocols: Zebrafish were euthanized in tricaine and hearts were extracted in PBS Hearts were pooled and pre digested for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum. The heart was exposed and approximately 20% of the ventricle removed Zebrafish were treated with MMP inhibitor NSC405020 for three days following surgery. Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.,Expt 2 Sham,SAMEA14418103,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.",ENA first public:2022 05 20|ENA last update:2022 05 20|External Id:SAMEA14418103|INSDC center alias:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC center name:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC first public:2022 05 20T16:17:49Z|INSDC last update:2022 05 20T16:17:49Z|INSDC status:public|Submitter Id:E MTAB 10643:Expt 2 Sham|age:6|broker name:ArrayExpress|cell type:interstitial cell|common name:zebrafish|developmental stage:adult|genotype:wild type genotype|injury:sham surgery|organism part:heart|sample name:E MTAB 10643:Expt 2 Sham|sex:male|strain:AB,,,,,,,,,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E MTAB 10643:Expt 2 Sham p,Expt 2 Sham p,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,"Zebrafish were euthanized in tricaine and hearts were extracted in PBS ""Hearts were pooled and """"pre digested"""" for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum."" The heart was exposed and approximately 20% of the ventricle removed Zebrafish were treated with MMP inhibitor NSC405020 for three days following surgery. Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.",Experimental Factor: injury:sham surgery|Experimental Factor: time:3|Experimental Factor: treatment:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina NovaSeq 6000,,ERP137743,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,E2_Sham_S1_L002_I1_001.fastq.gz E2_Sham_S1_L002_I2_001.fastq.gz E2_Sham_S1_L002_R1_001.fastq.gz E2_Sham_S1_L002_R2_001.fastq.gz,fastq fastq fastq fastq,11328674040.0,83916104.0,E MTAB 10643:Expt 2 Sham,0:10 1:10 2:28 3:87,A:1955327720;C:1746332187;G:1777122701;T:1820705338;N:1213102,10,10,28,87,1955327720,1746332187,1777122701,1820705338,1213102,ERX9298875,ERS12023661,ERA14538536,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive","IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive",1,0.92847,,0.09981,,0.85707,,0.46947,,87,,B,,usable mapping rate,illumina,novaseq_era,3prime,poly_a,unknown,sc,single_cell_droplet,10x,,France,2022-05-20,Adult,Adult,Heart,Cardiovascular System 11019,ERR9750935,ERX9298874,ERS12023660,ERP137743,PRJEB52989,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E-MTAB-10643,Transcriptome Analysis,Adult zebrafish hearts have the ability to regenerate. The roles of non myocytes in this process have remained elusive. Here we have performed 2 scRNAseq experiments on interstitial cells. Experiment 1 E1 included interstitial cells obtained from uninjured regenerating 3 days 7 days and 14 days post apical amputation. Experiment 2 E2 included cells from uninjured sham operated abdomen opened and regenerating 3 dy post amputation with and without xxx inhibitor NSC40520 treatment. Cells were obtained by heart dissection followed by enzymatic dissociation and FACS sorting of single viable nucleated cells.,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,,Protocols: Zebrafish were euthanized in tricaine and hearts were extracted in PBS Hearts were pooled and pre digested for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum. The heart was exposed and approximately 20% of the ventricle removed Zebrafish were treated with MMP inhibitor NSC405020 for three days following surgery. Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.,Expt 2 3d post amputation,SAMEA14418102,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.",ENA first public:2022 05 20|ENA last update:2022 05 20|External Id:SAMEA14418102|INSDC center alias:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC center name:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC first public:2022 05 20T16:17:49Z|INSDC last update:2022 05 20T16:17:49Z|INSDC status:public|Submitter Id:E MTAB 10643:Expt 2 3d post amputation|age:6|broker name:ArrayExpress|cell type:interstitial cell|common name:zebrafish|developmental stage:adult|genotype:wild type genotype|injury:20 percent removal of the cardiac ventricle apex|organism part:heart|sample name:E MTAB 10643:Expt 2 3d post amputation|sex:male|strain:AB,,,,,,,,,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E MTAB 10643:Expt 2 3d post amputation p,Expt 2 3d post amputation p,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,"Zebrafish were euthanized in tricaine and hearts were extracted in PBS ""Hearts were pooled and """"pre digested"""" for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum."" The heart was exposed and approximately 20% of the ventricle removed Zebrafish were treated with MMP inhibitor NSC405020 for three days following surgery. Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.",Experimental Factor: injury:20 percent removal of the cardiac ventricle apex|Experimental Factor: time:3|Experimental Factor: treatment:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina NovaSeq 6000,,ERP137743,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,E2_3dpa_S3_L002_I1_001.fastq.gz E2_3dpa_S3_L002_I2_001.fastq.gz E2_3dpa_S3_L002_R1_001.fastq.gz E2_3dpa_S3_L002_R2_001.fastq.gz,fastq fastq fastq fastq,16111486440.0,119344344.0,E MTAB 10643:Expt 2 3d post amputation,0:10 1:10 2:28 3:87,A:2610144058;C:2617445332;G:2496763759;T:2656876552;N:1728227,10,10,28,87,2610144058,2617445332,2496763759,2656876552,1728227,ERX9298874,ERS12023660,ERA14538536,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive","IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive",1,0.94868,,0.07071,,0.89221,,0.54333,,87,,B,,usable mapping rate,illumina,novaseq_era,3prime,poly_a,unknown,sc,single_cell_droplet,10x,,France,2022-05-20,Adult,Adult,Heart,Cardiovascular System 11020,ERR9750934,ERX9298873,ERS12023659,ERP137743,PRJEB52989,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E-MTAB-10643,Transcriptome Analysis,Adult zebrafish hearts have the ability to regenerate. The roles of non myocytes in this process have remained elusive. Here we have performed 2 scRNAseq experiments on interstitial cells. Experiment 1 E1 included interstitial cells obtained from uninjured regenerating 3 days 7 days and 14 days post apical amputation. Experiment 2 E2 included cells from uninjured sham operated abdomen opened and regenerating 3 dy post amputation with and without xxx inhibitor NSC40520 treatment. Cells were obtained by heart dissection followed by enzymatic dissociation and FACS sorting of single viable nucleated cells.,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,,Protocols: Zebrafish were euthanized in tricaine and hearts were extracted in PBS Hearts were pooled and pre digested for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum. The heart was exposed and approximately 20% of the ventricle removed Zebrafish were treated with MMP inhibitor NSC405020 for three days following surgery. Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.,Expt 3 3d post amputation + MMP inhibitor,SAMEA14418101,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.",ENA first public:2022 05 20|ENA last update:2022 05 20|External Id:SAMEA14418101|INSDC center alias:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC center name:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC first public:2022 05 20T16:17:49Z|INSDC last update:2022 05 20T16:17:49Z|INSDC status:public|Submitter Id:E MTAB 10643:Expt 3 3d post amputation + MMP inhibitor|age:6|broker name:ArrayExpress|cell type:interstitial cell|common name:zebrafish|developmental stage:adult|genotype:wild type genotype|injury:20 percent removal of the cardiac ventricle apex|organism part:heart|sample name:E MTAB 10643:Expt 3 3d post amputation + MMP inhibitor|sex:male|strain:AB|treatment:matrix metalloproteinase inhibitor,,,,,,,,,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E MTAB 10643:Expt 3 3d post amputation + MMP inhibitor p,Expt 3 3d post amputation + MMP inhibitor p,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,"Zebrafish were euthanized in tricaine and hearts were extracted in PBS ""Hearts were pooled and """"pre digested"""" for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum."" The heart was exposed and approximately 20% of the ventricle removed Zebrafish were treated with MMP inhibitor NSC405020 for three days following surgery. Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.",Experimental Factor: injury:20 percent removal of the cardiac ventricle apex|Experimental Factor: time:3|Experimental Factor: treatment:matrix metalloproteinase inhibitor,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina NovaSeq 6000,,ERP137743,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,E2_3dpa_inhibitor_S4_L002_I1_001.fastq.gz E2_3dpa_inhibitor_S4_L002_I2_001.fastq.gz E2_3dpa_inhibitor_S4_L002_R1_001.fastq.gz E2_3dpa_inhibitor_S4_L002_R2_001.fastq.gz,fastq fastq fastq fastq,8621019270.0,63859402.0,E MTAB 10643:Expt 3 3d post amputation + MMP inhibitor,0:10 1:10 2:28 3:87,A:1438763050;C:1365497247;G:1350808021;T:1399773154;N:926502,10,10,28,87,1438763050,1365497247,1350808021,1399773154,926502,ERX9298873,ERS12023659,ERA14538536,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive","IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive",1,0.92796,,0.08671,,0.87176,,0.55088,,87,,B,,usable mapping rate,illumina,novaseq_era,3prime,poly_a,unknown,sc,single_cell_droplet,10x,,France,2022-05-20,Adult,Adult,Heart,Cardiovascular System 11021,ERR9750933,ERX9298872,ERS12023658,ERP137743,PRJEB52989,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E-MTAB-10643,Transcriptome Analysis,Adult zebrafish hearts have the ability to regenerate. The roles of non myocytes in this process have remained elusive. Here we have performed 2 scRNAseq experiments on interstitial cells. Experiment 1 E1 included interstitial cells obtained from uninjured regenerating 3 days 7 days and 14 days post apical amputation. Experiment 2 E2 included cells from uninjured sham operated abdomen opened and regenerating 3 dy post amputation with and without xxx inhibitor NSC40520 treatment. Cells were obtained by heart dissection followed by enzymatic dissociation and FACS sorting of single viable nucleated cells.,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,,Protocols: Zebrafish were euthanized in tricaine and hearts were extracted in PBS Hearts were pooled and pre digested for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum. The heart was exposed and approximately 20% of the ventricle removed Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.,Expt 1 Uninjured,SAMEA14418100,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.",ENA first public:2022 05 20|ENA last update:2022 05 20|External Id:SAMEA14418100|INSDC center alias:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC center name:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC first public:2022 05 20T16:17:49Z|INSDC last update:2022 05 20T16:17:49Z|INSDC status:public|Submitter Id:E MTAB 10643:Expt 1 Uninjured|age:6|broker name:ArrayExpress|cell type:interstitial cell|common name:zebrafish|developmental stage:adult|genotype:wild type genotype|organism part:heart|sample name:E MTAB 10643:Expt 1 Uninjured|sex:male|strain:AB,,,,,,,,,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E MTAB 10643:Expt 1 Uninjured p,Expt 1 Uninjured p,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,"Zebrafish were euthanized in tricaine and hearts were extracted in PBS ""Hearts were pooled and """"pre digested"""" for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum."" The heart was exposed and approximately 20% of the ventricle removed Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.",Experimental Factor: injury:n1|Experimental Factor: treatment:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina NovaSeq 6000,,ERP137743,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,E1_Uninjured_S1_L002_I1_001.fastq.gz E1_Uninjured_S1_L002_R1_001.fastq.gz E1_Uninjured_S1_L002_R2_001.fastq.gz,fastq fastq fastq,8575585211.0,67524293.0,E MTAB 10643:Expt 1 Uninjured,0:8 1:28 2:91,A:1801503847;C:1312196506;G:1367890726;T:1663053783;N:65801,8,28,91,,1801503847,1312196506,1367890726,1663053783,65801,ERX9298872,ERS12023658,ERA14538536,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive","IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive",1,0.9169,,0.11202,,0.81576,,0.54253,,91,,B,,usable mapping rate,illumina,novaseq_era,3prime,poly_a,unknown,sc,single_cell_droplet,10x,,France,2022-05-20,Adult,Adult,Heart,Cardiovascular System 11022,ERR9750932,ERX9298871,ERS12023657,ERP137743,PRJEB52989,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E-MTAB-10643,Transcriptome Analysis,Adult zebrafish hearts have the ability to regenerate. The roles of non myocytes in this process have remained elusive. Here we have performed 2 scRNAseq experiments on interstitial cells. Experiment 1 E1 included interstitial cells obtained from uninjured regenerating 3 days 7 days and 14 days post apical amputation. Experiment 2 E2 included cells from uninjured sham operated abdomen opened and regenerating 3 dy post amputation with and without xxx inhibitor NSC40520 treatment. Cells were obtained by heart dissection followed by enzymatic dissociation and FACS sorting of single viable nucleated cells.,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,,Protocols: Zebrafish were euthanized in tricaine and hearts were extracted in PBS Hearts were pooled and pre digested for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum. The heart was exposed and approximately 20% of the ventricle removed Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.,Expt 1 7d post amputation,SAMEA14418099,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.",ENA first public:2022 05 20|ENA last update:2022 05 20|External Id:SAMEA14418099|INSDC center alias:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC center name:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC first public:2022 05 20T16:17:49Z|INSDC last update:2022 05 20T16:17:49Z|INSDC status:public|Submitter Id:E MTAB 10643:Expt 1 7d post amputation|age:6|broker name:ArrayExpress|cell type:interstitial cell|common name:zebrafish|developmental stage:adult|genotype:wild type genotype|injury:20 percent removal of the cardiac ventricle apex|organism part:heart|sample name:E MTAB 10643:Expt 1 7d post amputation|sex:male|strain:AB,,,,,,,,,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E MTAB 10643:Expt 1 7d post amputation p,Expt 1 7d post amputation p,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,"Zebrafish were euthanized in tricaine and hearts were extracted in PBS ""Hearts were pooled and """"pre digested"""" for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum."" The heart was exposed and approximately 20% of the ventricle removed Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.",Experimental Factor: injury:20 percent removal of the cardiac ventricle apex|Experimental Factor: time:7|Experimental Factor: treatment:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina NovaSeq 6000,,ERP137743,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,E1_7d_S3_L002_I1_001.fastq.gz E1_7d_S3_L002_R1_001.fastq.gz E1_7d_S3_L002_R2_001.fastq.gz,fastq fastq fastq,17341796660.0,136549580.0,E MTAB 10643:Expt 1 7d post amputation,0:8 1:28 2:91,A:3506600812;C:2774617588;G:2814960106;T:3329701112;N:132162,8,28,91,,3506600812,2774617588,2814960106,3329701112,132162,ERX9298871,ERS12023657,ERA14538536,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive","IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive",1,0.90616,,0.09608,,0.82446,,0.46632,,91,,B,,usable mapping rate,illumina,novaseq_era,3prime,poly_a,unknown,sc,single_cell_droplet,10x,,France,2022-05-20,Adult,Adult,Heart,Cardiovascular System 11023,ERR9750931,ERX9298870,ERS12023656,ERP137743,PRJEB52989,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E-MTAB-10643,Transcriptome Analysis,Adult zebrafish hearts have the ability to regenerate. The roles of non myocytes in this process have remained elusive. Here we have performed 2 scRNAseq experiments on interstitial cells. Experiment 1 E1 included interstitial cells obtained from uninjured regenerating 3 days 7 days and 14 days post apical amputation. Experiment 2 E2 included cells from uninjured sham operated abdomen opened and regenerating 3 dy post amputation with and without xxx inhibitor NSC40520 treatment. Cells were obtained by heart dissection followed by enzymatic dissociation and FACS sorting of single viable nucleated cells.,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,,Protocols: Zebrafish were euthanized in tricaine and hearts were extracted in PBS Hearts were pooled and pre digested for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum. The heart was exposed and approximately 20% of the ventricle removed Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.,Expt 1 3d post amputation,SAMEA14418098,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.",ENA first public:2022 05 20|ENA last update:2022 05 20|External Id:SAMEA14418098|INSDC center alias:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC center name:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC first public:2022 05 20T16:17:49Z|INSDC last update:2022 05 20T16:17:49Z|INSDC status:public|Submitter Id:E MTAB 10643:Expt 1 3d post amputation|age:6|broker name:ArrayExpress|cell type:interstitial cell|common name:zebrafish|developmental stage:adult|genotype:wild type genotype|injury:20 percent removal of the cardiac ventricle apex|organism part:heart|sample name:E MTAB 10643:Expt 1 3d post amputation|sex:male|strain:AB,,,,,,,,,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E MTAB 10643:Expt 1 3d post amputation p,Expt 1 3d post amputation p,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,"Zebrafish were euthanized in tricaine and hearts were extracted in PBS ""Hearts were pooled and """"pre digested"""" for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum."" The heart was exposed and approximately 20% of the ventricle removed Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.",Experimental Factor: injury:20 percent removal of the cardiac ventricle apex|Experimental Factor: time:3|Experimental Factor: treatment:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina NovaSeq 6000,,ERP137743,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,E1_3d_S2_L002_I1_001.fastq.gz E1_3d_S2_L002_R1_001.fastq.gz E1_3d_S2_L002_R2_001.fastq.gz,fastq fastq fastq,8183008018.0,64433134.0,E MTAB 10643:Expt 1 3d post amputation,0:8 1:28 2:91,A:1630460899;C:1330248096;G:1326144211;T:1576499358;N:62630,8,28,91,,1630460899,1330248096,1326144211,1576499358,62630,ERX9298870,ERS12023656,ERA14538536,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive","IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive",1,0.88759,,0.08679,,0.82948,,0.47863,,91,,B,,usable mapping rate,illumina,novaseq_era,3prime,poly_a,unknown,sc,single_cell_droplet,10x,,France,2022-05-20,Adult,Adult,Heart,Cardiovascular System 11024,ERR9750930,ERX9298869,ERS12023655,ERP137743,PRJEB52989,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E-MTAB-10643,Transcriptome Analysis,Adult zebrafish hearts have the ability to regenerate. The roles of non myocytes in this process have remained elusive. Here we have performed 2 scRNAseq experiments on interstitial cells. Experiment 1 E1 included interstitial cells obtained from uninjured regenerating 3 days 7 days and 14 days post apical amputation. Experiment 2 E2 included cells from uninjured sham operated abdomen opened and regenerating 3 dy post amputation with and without xxx inhibitor NSC40520 treatment. Cells were obtained by heart dissection followed by enzymatic dissociation and FACS sorting of single viable nucleated cells.,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,,Protocols: Zebrafish were euthanized in tricaine and hearts were extracted in PBS Hearts were pooled and pre digested for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum. The heart was exposed and approximately 20% of the ventricle removed Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.,Expt 1 14d post amputation,SAMEA14418097,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.",ENA first public:2022 05 20|ENA last update:2022 05 20|External Id:SAMEA14418097|INSDC center alias:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC center name:IGF CNRS INSERM Univ. Montpellier LabEx ICST F 34094 Montpellier France.|INSDC first public:2022 05 20T16:17:49Z|INSDC last update:2022 05 20T16:17:49Z|INSDC status:public|Submitter Id:E MTAB 10643:Expt 1 14d post amputation|age:6|broker name:ArrayExpress|cell type:interstitial cell|common name:zebrafish|developmental stage:adult|genotype:wild type genotype|injury:20 percent removal of the cardiac ventricle apex|organism part:heart|sample name:E MTAB 10643:Expt 1 14d post amputation|sex:male|strain:AB,,,,,,,,,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,E MTAB 10643:Expt 1 14d post amputation p,Expt 1 14d post amputation p,scRNAseq of post amputation regenerating zebrafish cardiac ventricle,"Zebrafish were euthanized in tricaine and hearts were extracted in PBS ""Hearts were pooled and """"pre digested"""" for 1h in 1/10 TrypLE/HBSS No CaMg on ice. Hearts were then digested in Collagenase IV 5mg/ml + Collagenase II 5mg/ml in HBSS with 12.5uM CaCl2 at 32 deg on a shaker 800rpm for 45 min. Following this tissue was gently dissociated and passed through a cell strainer 40um spun down 5min 300g and resuspended in HBSS 2% fetal calf serum."" The heart was exposed and approximately 20% of the ventricle removed Amplified cDNA was used for three prime RNA seq library generation RNA seq libraries were prepared following the manufacturer's user guide 10x Genomics.",Experimental Factor: injury:20 percent removal of the cardiac ventricle apex|Experimental Factor: time:14|Experimental Factor: treatment:n1,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,PolyA,SINGLE,ILLUMINA,Illumina NovaSeq 6000,,ERP137743,Illumina NovaSeq 6000 sequencing; scRNAseq of post amputation regenerating zebrafish cardiac ventricle,ENA FIRST PUBLIC:2022 05 20|ENA LAST UPDATE:2022 05 20,E1_14d_S4_L002_I1_001.fastq.gz E1_14d_S4_L002_R1_001.fastq.gz E1_14d_S4_L002_R2_001.fastq.gz,fastq fastq fastq,12911908390.0,101668570.0,E MTAB 10643:Expt 1 14d post amputation,0:8 1:28 2:91,A:2700371496;C:1971281481;G:2062280628;T:2517806408;N:99857,8,28,91,,2700371496,1971281481,2062280628,2517806408,99857,ERX9298869,ERS12023655,ERA14538536,"IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive","IGF, CNRS, INSERM, Univ. Montpellier, LabEx ICST, F-34094 Montpellier, France.|European Nucleotide Archive",1,0.90771,,0.11048,,0.81523,,0.53024,,91,,B,,usable mapping rate,illumina,novaseq_era,3prime,poly_a,unknown,sc,single_cell_droplet,10x,,France,2022-05-20,Adult,Adult,Heart,Cardiovascular System 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,,zebrafish 14dpi heart3,GSM7717530,,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,,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. Cell Reports 2012; also see: Junker et al. 2014 Cell,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP455780,,loader:fastq load.py|options: allowEarlyFileEnd,DB14zf4_R1.fq DB14zf4_R2.fq,fastq fastq,571157496.0,7312520.0,GSM7717530 r1,,A:132329616;C:53169305;G:72431948;T:313058610;N:168017,,,,,132329616,53169305,72431948,313058610,168017,SRX21410761,SRS18649243,SRA1751823,"Jeroen Bakkers, Hubrecht Institute","Jeroen Bakkers, Hubrecht Institute",2,0.01414,0.679,0.01413,0.08289,1.0,0.98395,,0.48915,76,76,T,B,mate1 technical by mapping diff,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_plate,celseq,,Netherlands,2023-08-18,Adult,Adult,Heart,Cardiovascular System 25229,SRR25685573,SRX21410760,SRS18649241,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,,zebrafish 14dpi heart2,GSM7717529,,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,,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. Cell Reports 2012; also see: Junker et al. 2014 Cell,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP455780,,loader:fastq load.py|options: allowEarlyFileEnd,DB14zf3_R1.fq DB14zf3_R2.fq,fastq fastq,97890367.0,1292037.0,GSM7717529 r1,,A:21637243;C:8563955;G:12004508;T:55662880;N:21781,,,,,21637243,8563955,12004508,55662880,21781,SRX21410760,SRS18649241,SRA1751823,"Jeroen Bakkers, Hubrecht Institute","Jeroen Bakkers, Hubrecht Institute",2,0.0,0.689,0.0,0.07655,1.0,0.99831,,0.63709,76,75,T,B,mate1 technical by mapping diff,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_plate,celseq,,Netherlands,2023-08-18,Adult,Adult,Heart,Cardiovascular System 25230,SRR25685574,SRX21410759,SRS18649242,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,,zebrafish 14dpi heart1,GSM7717528,,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,,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. Cell Reports 2012; also see: Junker et al. 2014 Cell,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP455780,,loader:fastq load.py|options: allowEarlyFileEnd,DB14zf1_R1.fq DB14zf1_R2.fq,fastq fastq,1031757474.0,7257847.0,GSM7717528 r1,,A:276216587;C:146620316;G:184052670;T:423474577;N:1393324,,,,,276216587,146620316,184052670,423474577,1393324,SRX21410759,SRS18649242,SRA1751823,"Jeroen Bakkers, Hubrecht Institute","Jeroen Bakkers, Hubrecht Institute",2,0.04176,0.6198,0.03023,0.08234,0.99894,0.88885,0.64556,0.53126,76,75,T,B,mate1 technical by mapping diff,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_plate,celseq,,Netherlands,2023-08-18,Adult,Adult,Heart,Cardiovascular System 25231,SRR25685575,SRX21410758,SRS18649240,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,,zebrafish 7dpi heart3,GSM7717527,,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,,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. Cell Reports 2012; also see: Junker et al. 2014 Cell,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP455780,,loader:fastq load.py|options: allowEarlyFileEnd,D37DPIZF3_R1.fq D37DPIZF3_R2.fq,fastq fastq,898901460.0,7585924.0,GSM7717527 r1,,A:236935836;C:100995680;G:128458892;T:431620821;N:890231,,,,,236935836,100995680,128458892,431620821,890231,SRX21410758,SRS18649240,SRA1751823,"Jeroen Bakkers, Hubrecht Institute","Jeroen Bakkers, Hubrecht Institute",2,0.12082,0.70068,0.10594,0.1234,0.99983,0.90136,0.875,0.48346,75,76,T,B,mate1 technical by mapping diff,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_plate,celseq,,Netherlands,2023-08-18,Adult,Adult,Heart,Cardiovascular System 25232,SRR25685576,SRX21410757,SRS18649239,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,,zebrafish 7dpi heart2,GSM7717526,,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,,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. Cell Reports 2012; also see: Junker et al. 2014 Cell,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP455780,,loader:fastq load.py|options: allowEarlyFileEnd,D27DPIZF2_R1.fq D27DPIZF2_R2.fq,fastq fastq,1060429257.0,7609110.0,GSM7717526 r1,,A:283107752;C:130181128;G:159305328;T:486464477;N:1370572,,,,,283107752,130181128,159305328,486464477,1370572,SRX21410757,SRS18649239,SRA1751823,"Jeroen Bakkers, Hubrecht Institute","Jeroen Bakkers, Hubrecht Institute",2,0.19472,0.68783,0.17584,0.16739,0.99967,0.85628,0.44,0.56319,75,76,T,B,mate1 technical by mapping diff,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_plate,celseq,,Netherlands,2023-08-18,Adult,Adult,Heart,Cardiovascular System 25233,SRR25685577,SRX21410756,SRS18649238,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,,zebrafish 7dpi heart1,GSM7717525,,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,,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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP455780,,loader:fastq load.py|options: allowEarlyFileEnd,D17DPIZF1_R1.fq D17DPIZF1_R2.fq,fastq fastq,1073044507.0,7624815.0,GSM7717525 r1,,A:288576038;C:136858647;G:170330711;T:475869519;N:1409592,,,,,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,,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,,zebrafish 3dpi heart3,GSM7717524,,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,,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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP455780,,,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,,,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,,0.53909,76,75,T,B,mate1 technical by mapping diff,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_plate,celseq,,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,,zebrafish 3dpi heart2,GSM7717523,,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,,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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP455780,,,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,,,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,,0.56367,75,75,T,B,mate1 technical by mapping diff,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_plate,celseq,,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,,zebrafish 3dpi heart1,GSM7717522,,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,,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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP455780,,,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,,,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,,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,,hmga1a mutant plate 4,GSM7728123,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,hmga1a mutant plate 4,GSM7728123,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,hmga1a mutant plate 4,GSM7728123,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,hmga1a mutant plate 4,GSM7728123,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,hmga1a mutant plate 3,GSM7728122,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,hmga1a mutant plate 3,GSM7728122,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,hmga1a mutant plate 3,GSM7728122,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,hmga1a mutant plate 3,GSM7728122,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,wildtype plate 3,GSM7728121,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,wildtype plate 3,GSM7728121,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,wildtype plate 3,GSM7728121,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,wildtype plate 3,GSM7728121,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,wildtype plate 2,GSM7728120,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,wildtype plate 2,GSM7728120,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,wildtype plate 2,GSM7728120,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,wildtype plate 2,GSM7728120,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,hmga1a mutant plate 2,GSM7728119,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,hmga1a mutant plate 2,GSM7728119,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,hmga1a mutant plate 2,GSM7728119,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,hmga1a mutant plate 2,GSM7728119,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,hmga1a mutant plate 1,GSM7728118,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,hmga1a mutant plate 1,GSM7728118,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,hmga1a mutant plate 1,GSM7728118,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,hmga1a mutant plate 1,GSM7728118,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,wildtype plate 1,GSM7728117,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,wildtype plate 1,GSM7728117,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,wildtype plate 1,GSM7728117,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,wildtype plate 1,GSM7728117,,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.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP456323,,,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,,,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,,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,,pubmed:38748804,,80hpf,GSM7764482,,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,,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 3ʹ Reagent Kits v3 1 10xGenomics. scRNA seq library preparation was done using a standard protocol and sequencing was done on a Nextseq2000,,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 3ʹ Reagent Kits v3 1 10xGenomics. scRNA seq library preparation was done using a standard protocol and sequencing was done on a Nextseq2000,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 2000,,SRP458853,,,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,,,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,,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,,pubmed:38748804,,50hpf,GSM7764481,,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,,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 3ʹ Reagent Kits v3 1 10xGenomics. scRNA seq library preparation was done using a standard protocol and sequencing was done on a Nextseq2000,,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 3ʹ Reagent Kits v3 1 10xGenomics. scRNA seq library preparation was done using a standard protocol and sequencing was done on a Nextseq2000,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 2000,,SRP458853,,,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,,,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,,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/ µL 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.,,pubmed:39720516,,sibling replicate 2 snRNAseq,GSM7880035,,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,,Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described​65​. 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/ µL 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° 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’ 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,,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​65​. 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/ µL 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° 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP469857,,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,,,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,,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/ µL 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.,,pubmed:39720516,,sibling replicate 2 snRNAseq,GSM7880035,,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,,Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described​65​. 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/ µL 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° 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’ 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,,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​65​. 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/ µL 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° 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP469857,,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,,,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,,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/ µL 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.,,pubmed:39720516,,sibling replicate 1 snRNAseq,GSM7880034,,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,,Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described​65​. 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/ µL 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° 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’ 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,,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​65​. 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/ µL 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° 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP469857,,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,,,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,,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/ µL 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.,,pubmed:39720516,,sibling replicate 1 snRNAseq,GSM7880034,,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,,Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described​65​. 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/ µL 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° 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’ 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,,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​65​. 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/ µL 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° 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP469857,,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,,,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,,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/ µL 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.,,pubmed:39720516,,spns mutant replicate 2 snRNAseq,GSM7880033,,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,,Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described​65​. 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/ µL 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° 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’ 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,,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​65​. 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/ µL 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° 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP469857,,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,,,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,,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/ µL 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.,,pubmed:39720516,,spns mutant replicate 2 snRNAseq,GSM7880033,,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,,Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described​65​. 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/ µL 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° 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’ 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,,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​65​. 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/ µL 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° 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP469857,,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,,,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,,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/ µL 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.,,pubmed:39720516,,spns mutant replicate 1 snRNAseq,GSM7880032,,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,,Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described​65​. 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/ µL 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° 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’ 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,,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​65​. 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/ µL 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° 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP469857,,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,,,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,,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/ µL 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.,,pubmed:39720516,,spns mutant replicate 1 snRNAseq,GSM7880032,,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,,Sibling and mutant larval hearts were obtained at 3 dpf by manual dissection using forceps and a tungsten needle as previously described​65​. 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/ µL 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° 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’ 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,,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​65​. 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/ µL 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° 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP469857,,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,,,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,,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,,pubmed:39962064;pubmed:40268967,,scRNA seq of wild type border z1 cells of regenerating hearts at 7 dpci,GSM7989198,,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’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 3ʹ Reagent Kits v3.1 10xGenomics. Single cell RNAseq library preparation was done using standard protocol.,,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 3ʹ Reagent Kits v3.1 10xGenomics. Single cell RNAseq library preparation was done using standard protocol.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 2000,,SRP479504,,,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,,,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,,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/ß catenin signaling activated cardiomyocytes ß 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/ß catenin signaling we also collected AVC from fish treated with DMSO or IWR1 endo an inhibitor of Wnt/ß catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between ß 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 µM 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,,AVC IWR1 scRNAseq,GSM8147318,,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 μM MTZ dissolved in fish water for 48 h in the dark.,Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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’reagent 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.,,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 TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP495277,,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",,,,,,,,,,,,B,,usable mapping rate,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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/ß catenin signaling activated cardiomyocytes ß 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/ß catenin signaling we also collected AVC from fish treated with DMSO or IWR1 endo an inhibitor of Wnt/ß catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between ß 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 µM 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,,AVC IWR1 scRNAseq,GSM8147318,,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 μM MTZ dissolved in fish water for 48 h in the dark.,Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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’reagent 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.,,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 TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP495277,,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",,,,,,,,,,,,B,,usable mapping rate,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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/ß catenin signaling activated cardiomyocytes ß 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/ß catenin signaling we also collected AVC from fish treated with DMSO or IWR1 endo an inhibitor of Wnt/ß catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between ß 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 µM 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,,AVC IWR1 scRNAseq,GSM8147318,,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 μM MTZ dissolved in fish water for 48 h in the dark.,Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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’reagent 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.,,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 TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP495277,,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",,,,,,,,,,,,B,,usable mapping rate,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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/ß catenin signaling activated cardiomyocytes ß 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/ß catenin signaling we also collected AVC from fish treated with DMSO or IWR1 endo an inhibitor of Wnt/ß catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between ß 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 µM 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,,AVC IWR1 scRNAseq,GSM8147318,,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 μM MTZ dissolved in fish water for 48 h in the dark.,Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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’reagent 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.,,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 TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP495277,,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",,,,,,,,,,,,B,,usable mapping rate,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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/ß catenin signaling activated cardiomyocytes ß 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/ß catenin signaling we also collected AVC from fish treated with DMSO or IWR1 endo an inhibitor of Wnt/ß catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between ß 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 µM 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,,AVC DMSO scRNAseq,GSM8147317,,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 μM MTZ dissolved in fish water for 48 h in the dark.,Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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’reagent 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.,,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 TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP495277,,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",,,,,,,,,,,,B,,usable mapping rate,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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/ß catenin signaling activated cardiomyocytes ß 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/ß catenin signaling we also collected AVC from fish treated with DMSO or IWR1 endo an inhibitor of Wnt/ß catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between ß 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 µM 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,,AVC DMSO scRNAseq,GSM8147317,,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 μM MTZ dissolved in fish water for 48 h in the dark.,Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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’reagent 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.,,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 TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP495277,,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",,,,,,,,,,,,B,,usable mapping rate,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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/ß catenin signaling activated cardiomyocytes ß 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/ß catenin signaling we also collected AVC from fish treated with DMSO or IWR1 endo an inhibitor of Wnt/ß catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between ß 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 µM 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,,AVC DMSO scRNAseq,GSM8147317,,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 μM MTZ dissolved in fish water for 48 h in the dark.,Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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’reagent 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.,,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 TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP495277,,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",,,,,,,,,,,,B,,usable mapping rate,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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/ß catenin signaling activated cardiomyocytes ß 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/ß catenin signaling we also collected AVC from fish treated with DMSO or IWR1 endo an inhibitor of Wnt/ß catenin signaling. Our analyses indicated that Fgf and/or Sema signaling are potential candidates for mediating the crosstalk between ß 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 µM 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,,AVC DMSO scRNAseq,GSM8147317,,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 μM MTZ dissolved in fish water for 48 h in the dark.,Hearts were resected from 1 mpf Tgfli1:EGFP;Tgmyl7:GAL4db TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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’reagent 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.,,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 TCFΔC;5xUAS:NTR mCherry fish treated with DMSO or 10 μM 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 ºC. post pipetting the cells were collected in low binding tubes pelleted 3000 rpm 5 min at 4ºC 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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP495277,,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",,,,,,,,,,,,B,,usable mapping rate,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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.,,pubmed:39632839,,Tgelavl3:eGFP Tgnbt:DsRed,GSM8147512,,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,,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°C ±1°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP495302,,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 & TAUB Institute, Columbia University","Neurology & TAUB Institute, Columbia University",2,0.0,0.94374,0.0,0.12308,1.0,0.82055,,0.55544,101,101,T,B,mate1 technical by mapping diff,illumina,nextseq,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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.,,pubmed:39632839,,Tgelavl3:eGFP,GSM8147511,,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,,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°C ±1°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP495302,,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 & 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,,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.,,pubmed:39632839,,Tgelavl3:eGFP,GSM8147511,,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,,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°C ±1°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 500,,SRP495302,,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 & 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,,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.,,pubmed:40053597,,S72hpf trunks,GSM8149579,,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,,A total of 1000 hearts dissected from Tgmyl7:mCherry embryos at 72 hpf were digested in 0.25% trypsin EDTA solution at 37 °C 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,Dechorionated zebrafish embryos were maintained in 0.3x Danieau’s Buffer at 28 °C with a photoperiod of 14/10 h 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 °C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP495490,,,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,,,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,,0.54499,150,150,T,B,mate1 technical by mapping diff,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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,,ventricular cells myd88 / 24 hpci,GSM8161054,,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’s instructions and with the following modifications: Incubation was performed at 30°C for 20 min followed by resuspension in 1× 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 3’ GEM Library & Gel Bead Kit v3.1 16 rxns PN 1000121.,,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°C for 20 min followed by resuspension in 1× 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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 2000,,SRP497294,,,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,,,8573180857,6884590114,7520784498,8220228225,158206836,SRX24027916,SRS20821688,SRA1832827,MPI for heart and lung research,MPI for heart and lung research,,,,,,,,,,,,T,B,sc-like readlen,illumina,nextseq_v2,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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,,ventricular cells myd88+/+ 24 hpci,GSM8161053,,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’s instructions and with the following modifications: Incubation was performed at 30°C for 20 min followed by resuspension in 1× 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 3’ GEM Library & Gel Bead Kit v3.1 16 rxns PN 1000121.,,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°C for 20 min followed by resuspension in 1× 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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 2000,,SRP497294,,,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,,,11079272327,8809520398,9307205642,11269370263,206890743,SRX24027915,SRS20821687,SRA1832827,MPI for heart and lung research,MPI for heart and lung research,,,,,,,,,,,,T,B,sc-like readlen,illumina,nextseq_v2,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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,,,,zebrafish 14dpi rep6,GSM8173843,,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 González 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 wireGonzález 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,Wild type Tübingen 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’s 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’s 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP498465,,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",,,,,,,,,,,,T,B,sc-like readlen,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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,,,,zebrafish 14dpi rep5,GSM8173842,,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 González 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 wireGonzález 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,Wild type Tübingen 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’s 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’s 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP498465,,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",,,,,,,,,,,,T,B,sc-like readlen,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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,,,,zebrafish 14dpi rep4,GSM8173841,,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 González 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 wireGonzález 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,Wild type Tübingen 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’s 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’s 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP498465,,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",,,,,,,,,,,,T,B,sc-like readlen,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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,,,,zebrafish 14dpi rep3,GSM8173840,,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 González 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 wireGonzález 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,Wild type Tübingen 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’s 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’s 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP498465,,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",,,,,,,,,,,,T,B,sc-like readlen,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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,,,,zebrafish 14dpi rep2,GSM8173839,,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 González 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 wireGonzález 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,Wild type Tübingen 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’s 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’s 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP498465,,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",,,,,,,,,,,,T,B,sc-like readlen,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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,,,,zebrafish 14dpi rep1,GSM8173838,,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 González 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 wireGonzález 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,Wild type Tübingen 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’s 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’s 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP498465,,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",,,,,,,,,,,,T,B,sc-like readlen,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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,,,,zebrafish 3dpi rep3,GSM8173837,,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 González 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 wireGonzález 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,Wild type Tübingen 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’s 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’s 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP498465,,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",,,,,,,,,,,,T,B,sc-like readlen,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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,,,,zebrafish 3dpi rep2,GSM8173836,,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 González 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 wireGonzález 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,Wild type Tübingen 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’s 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’s 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP498465,,loader:fastq load.py|options: readTypes=TTBB read1PairFiles=19630X5 220407 A00421 0430 AHL27JDSX3 S5 L004 I1 001.fastq.gz read2PairFiles=19630X5 220407 A00421 0430 AHL27JDSX3 S5 L004 I2 001.fastq.gz read3PairFiles=19630X5 220407 A00421 0430 AHL27JDSX3 S5 L004 R1 001.fastq.gz read4PairFiles=19630X5 220407 A00421 0430 AHL27JDSX3 S5 L004 R2 001.fastq.gz,19630X5_220407_A00421_0430_AHL27JDSX3_S5_L004_I1_001.fastq.gz 19630X5_220407_A00421_0430_AHL27JDSX3_S5_L004_I2_001.fastq.gz 19630X5_220407_A00421_0430_AHL27JDSX3_S5_L004_R1_001.fastq.gz 19630X5_220407_A00421_0430_AHL27JDSX3_S5_L004_R2_001.fastq.gz,fastq fastq fastq fastq,88269296544.0,445804528.0,GSM8173836 r1,0:10 1:10 2:28 3:150,A:23691494771;C:17715287132;G:16934838063;T:21009112314;N:2473704,10,10,28,150,23691494771,17715287132,16934838063,21009112314,2473704,SRX24093150,SRS20882446,SRA1835934,"Gagnon, Biology, University of Utah","Gagnon, Biology, University of Utah",,,,,,,,,,,,T,B,sc-like readlen,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,United States,2024-03-28,Adult,Adult,Heart,Cardiovascular System 31682,SRR28490927,SRX24093149,SRS20882445,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,,,,zebrafish 3dpi rep1,GSM8173835,,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 González 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 wireGonzález 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,Wild type Tübingen 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’s 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’s 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP498465,,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",,,,,,,,,,,,T,B,sc-like readlen,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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,,,,zebrafish uninjured rep4,GSM8173834,,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 González 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 wireGonzález 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,Wild type Tübingen 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’s 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’s 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP498465,,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",,,,,,,,,,,,T,B,sc-like readlen,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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,,,,zebrafish uninjured rep3,GSM8173833,,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 González 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 wireGonzález 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,Wild type Tübingen 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’s 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’s 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP498465,,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",,,,,,,,,,,,T,B,sc-like readlen,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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,,,,zebrafish uninjured rep2,GSM8173832,,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 González 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 wireGonzález 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,Wild type Tübingen 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’s 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’s 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP498465,,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,,11954731471,9381480553,8372128049,10605910330,802277,SRX24093146,SRS20882442,SRA1835934,"Gagnon, Biology, University of Utah","Gagnon, Biology, University of Utah",,,,,,,,,,,,T,B,sc-like readlen,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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,,,,zebrafish uninjured rep1,GSM8173831,,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 González 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 wireGonzález 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,Wild type Tübingen 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’s 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’s 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 • Accepted manuscript in 200 µl dissociation solution containing 1mg/mL liberase DH Millipore Sigma cat# 5401089001 in 1X HBSS. Ventricles were digested at 37°C 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 µM strainer. The cells were then centrifuged at 250 RCF for 10 minutes at 4°C 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,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP498465,,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,,13780412427,10982740007,9382145879,12602525920,946243,SRX24093145,SRS20882441,SRA1835934,"Gagnon, Biology, University of Utah","Gagnon, Biology, University of Utah",,,,,,,,,,,,T,B,sc-like readlen,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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.,,pubmed:39217144,,EC 2d,GSM8314110,,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,,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·H2O and 0.18 mM CaNO32 while being maintained at a stable temperature of 28°C. 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 μl Enzyme 1 and 5 μl Enzyme 2 Pierce Cardiomyocyte Dissociation Kit Thermo Fisher Scientific Cat#88281 for 20 minutes at 300 rpm in a 30°C 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 μM 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™ 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 3ʹ 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·H2O and 0.18 mM CaNO32 while being maintained at a stable temperature of 28°C. 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 μl Enzyme 1 and 5 μl Enzyme 2 Pierce Cardiomyocyte Dissociation Kit Thermo Fisher Scientific Cat#88281 for 20 minutes at 300 rpm in a 30°C 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 μM 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™ 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 3ʹ Reagent Kits v3.1 10xGenomics. Library preparation was conducted according to the manufacturer indications.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 2000,,SRP512516,,,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,,,10212120425,8162504214,8573129268,10704929378,196698742,SRX24842084,SRS21553259,SRA1892449,MPI for heart and lung research,MPI for heart and lung research,,,,,,,,,,,,T,B,mate1 technical by mapping diff,illumina,nextseq_v2,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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.,,pubmed:39217144,,EC HC 3d,GSM8314111,,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,,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·H2O and 0.18 mM CaNO32 while being maintained at a stable temperature of 28°C. 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 μl Enzyme 1 and 5 μl Enzyme 2 Pierce Cardiomyocyte Dissociation Kit Thermo Fisher Scientific Cat#88281 for 20 minutes at 300 rpm in a 30°C 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 μM 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™ 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 3ʹ 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·H2O and 0.18 mM CaNO32 while being maintained at a stable temperature of 28°C. 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 μl Enzyme 1 and 5 μl Enzyme 2 Pierce Cardiomyocyte Dissociation Kit Thermo Fisher Scientific Cat#88281 for 20 minutes at 300 rpm in a 30°C 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 μM 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™ 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 3ʹ Reagent Kits v3.1 10xGenomics. Library preparation was conducted according to the manufacturer indications.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,NextSeq 2000,,SRP512516,,,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,,,9310358713,7641472951,8108829079,9501691105,182760694,SRX24842083,SRS21553258,SRA1892449,MPI for heart and lung research,MPI for heart and lung research,,,,,,,,,,,,T,B,sc-like readlen,illumina,nextseq_v2,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,Germany,2024-06-07,Larval,Larval,Heart,Cardiovascular System 33669,SRR30530658,SRX25954305,SRS22536191,SRP530279,PRJNA1156090,Single cell transcriptome sequencing analysis of endothelial cells in control and high glucose treated zebrafish embryos,GSE276251,Transcriptome Analysis,Artificially sweetened beverages containing noncaloric monosaccharides were suggested as healthier alternatives to sugar sweetened beverages. Nevertheless the potential detrimental effects of these noncaloric monosaccharides on blood vessel function remain inadequately understood. Presently we have established a zebrafish model that exhibits significant excessive angiogenesis induced by high glucose. Utilizing this model we observed that glucose and noncaloric monosaccharides could induce excessive formation of blood vessels especially intersegmental vessels ISVs. The excessively branched vessels were observed to be formed by ectopic activation of quiescent endothelial cells ECs into tip cells. Single cell transcriptomic sequencing analysis of the endothelial cells in the embryos exposed to high glucose revealed an augmented ratio of capillary ECs proliferating ECs and a series of upregulated proangiogenic genes. Overall design: Firstly we isolated the EGFP positive cells from control and high glucose treated Tgfli1ep:EGFP CAAX transgenic embryos. Following the proteolytic dissociation of embryos the EGFP positive cells were isolated by fluorescence activated cell sorting FACS. Around 300500 zebrafish embryos were used for the ECs collection for each stage. The isolated ECs were analyzed using a large scale scRNA seq 10X Genomics platform.,,pubmed:39365738;pubmed:39882604,,endothelial cells,high glucose,GSM8494124,,tissue:endothelial cells|cell type:endothelial cells|geo loc name:missing|collection date:missing,endothelial cells,high glucose,Cell Ranger 3.0.2 https://github.com/10XGenomics/cellranger was used to convert the raw sequencing data to single cell level gene counts matrix. The clustering of single cells and the marker genes in each cluster were analyzed by Seurat 3.0 https://satijalab.org/seurat/install.html Assembly: The reference genome fasta format and gene annotation gtf format files were downloaded from Ensembl database release version 94. Supplementary files format and content: Tab separated values files and matrix files.,endothelial cells,Embryos were treated with 6% glucose from 24 hpf to 72 hpf.,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell 3’Reagent Kits v3 from 10X Genomics Company.,Tgkdrl:EGFP embryos were raised in E3 solution at 28.5℃ to the indicated developmental stage.,cell type:endothelial cells,GSM8494124,GSM8494124: endothelial cells,high glucose; Danio rerio; RNA Seq,GSM8494124 r1,GSM8494124,1,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell three primeReagent Kits v3 from 10X Genomics Company.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina HiSeq 4000,,SRP530279,,,lr57glu96hpf_R1.fq.gz lr57glu96hpf_R2.fq.gz,fastq fastq,196891371600.0,656304572.0,GSM8494124 r1,0:150 1:150,A:46034913013;C:37262343828;G:60636104680;T:52955473756;N:2536323,150,150,,,46034913013,37262343828,60636104680,52955473756,2536323,SRX25954305,SRS22536191,SRA1961613,Nantong University,Nantong University,,,,,,,,,,,,T,B,mate1 technical by mapping diff,illumina,hiseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,China,2024-09-03,Multi-stage,Multi-stage,Endothelium,Cardiovascular System 33670,SRR30530659,SRX25954304,SRS22536190,SRP530279,PRJNA1156090,Single cell transcriptome sequencing analysis of endothelial cells in control and high glucose treated zebrafish embryos,GSE276251,Transcriptome Analysis,Artificially sweetened beverages containing noncaloric monosaccharides were suggested as healthier alternatives to sugar sweetened beverages. Nevertheless the potential detrimental effects of these noncaloric monosaccharides on blood vessel function remain inadequately understood. Presently we have established a zebrafish model that exhibits significant excessive angiogenesis induced by high glucose. Utilizing this model we observed that glucose and noncaloric monosaccharides could induce excessive formation of blood vessels especially intersegmental vessels ISVs. The excessively branched vessels were observed to be formed by ectopic activation of quiescent endothelial cells ECs into tip cells. Single cell transcriptomic sequencing analysis of the endothelial cells in the embryos exposed to high glucose revealed an augmented ratio of capillary ECs proliferating ECs and a series of upregulated proangiogenic genes. Overall design: Firstly we isolated the EGFP positive cells from control and high glucose treated Tgfli1ep:EGFP CAAX transgenic embryos. Following the proteolytic dissociation of embryos the EGFP positive cells were isolated by fluorescence activated cell sorting FACS. Around 300500 zebrafish embryos were used for the ECs collection for each stage. The isolated ECs were analyzed using a large scale scRNA seq 10X Genomics platform.,,pubmed:39365738;pubmed:39882604,,endothelial cells,control,GSM8494123,,tissue:endothelial cells|cell type:endothelial cells|geo loc name:missing|collection date:missing,endothelial cells,control,Cell Ranger 3.0.2 https://github.com/10XGenomics/cellranger was used to convert the raw sequencing data to single cell level gene counts matrix. The clustering of single cells and the marker genes in each cluster were analyzed by Seurat 3.0 https://satijalab.org/seurat/install.html Assembly: The reference genome fasta format and gene annotation gtf format files were downloaded from Ensembl database release version 94. Supplementary files format and content: Tab separated values files and matrix files.,endothelial cells,Embryos were treated with 6% glucose from 24 hpf to 72 hpf.,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell 3’Reagent Kits v3 from 10X Genomics Company.,Tgkdrl:EGFP embryos were raised in E3 solution at 28.5℃ to the indicated developmental stage.,cell type:endothelial cells,GSM8494123,GSM8494123: endothelial cells,control; Danio rerio; RNA Seq,GSM8494123 r1,GSM8494123,1,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell three primeReagent Kits v3 from 10X Genomics Company.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina HiSeq 4000,,SRP530279,,,SH190424C_LR5796dpf_1_1_R1.fq.gz SH190424C_LR5796dpf_1_1_R2.fq.gz,fastq fastq,18351420300.0,61171401.0,GSM8494123 r1,0:150 1:150,A:3872504772;C:3434009784;G:6583451920;T:4461384217;N:69607,150,150,,,3872504772,3434009784,6583451920,4461384217,69607,SRX25954304,SRS22536190,SRA1961613,Nantong University,Nantong University,,,,,,,,,,,,T,B,mate1 technical by mapping diff,illumina,hiseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,China,2024-09-03,Multi-stage,Multi-stage,Endothelium,Cardiovascular System 33671,SRR30530660,SRX25954304,SRS22536190,SRP530279,PRJNA1156090,Single cell transcriptome sequencing analysis of endothelial cells in control and high glucose treated zebrafish embryos,GSE276251,Transcriptome Analysis,Artificially sweetened beverages containing noncaloric monosaccharides were suggested as healthier alternatives to sugar sweetened beverages. Nevertheless the potential detrimental effects of these noncaloric monosaccharides on blood vessel function remain inadequately understood. Presently we have established a zebrafish model that exhibits significant excessive angiogenesis induced by high glucose. Utilizing this model we observed that glucose and noncaloric monosaccharides could induce excessive formation of blood vessels especially intersegmental vessels ISVs. The excessively branched vessels were observed to be formed by ectopic activation of quiescent endothelial cells ECs into tip cells. Single cell transcriptomic sequencing analysis of the endothelial cells in the embryos exposed to high glucose revealed an augmented ratio of capillary ECs proliferating ECs and a series of upregulated proangiogenic genes. Overall design: Firstly we isolated the EGFP positive cells from control and high glucose treated Tgfli1ep:EGFP CAAX transgenic embryos. Following the proteolytic dissociation of embryos the EGFP positive cells were isolated by fluorescence activated cell sorting FACS. Around 300500 zebrafish embryos were used for the ECs collection for each stage. The isolated ECs were analyzed using a large scale scRNA seq 10X Genomics platform.,,pubmed:39365738;pubmed:39882604,,endothelial cells,control,GSM8494123,,tissue:endothelial cells|cell type:endothelial cells|geo loc name:missing|collection date:missing,endothelial cells,control,Cell Ranger 3.0.2 https://github.com/10XGenomics/cellranger was used to convert the raw sequencing data to single cell level gene counts matrix. The clustering of single cells and the marker genes in each cluster were analyzed by Seurat 3.0 https://satijalab.org/seurat/install.html Assembly: The reference genome fasta format and gene annotation gtf format files were downloaded from Ensembl database release version 94. Supplementary files format and content: Tab separated values files and matrix files.,endothelial cells,Embryos were treated with 6% glucose from 24 hpf to 72 hpf.,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell 3’Reagent Kits v3 from 10X Genomics Company.,Tgkdrl:EGFP embryos were raised in E3 solution at 28.5℃ to the indicated developmental stage.,cell type:endothelial cells,GSM8494123,GSM8494123: endothelial cells,control; Danio rerio; RNA Seq,GSM8494123 r1,GSM8494123,1,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell three primeReagent Kits v3 from 10X Genomics Company.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina HiSeq 4000,,SRP530279,,,SH190424C_LR5796dpf_1_2_R1.fq.gz SH190424C_LR5796dpf_1_2_R2.fq.gz,fastq fastq,36386960400.0,121289868.0,GSM8494123 r2,0:150 1:150,A:8890006445;C:6974694151;G:10814990376;T:9707137150;N:132278,150,150,,,8890006445,6974694151,10814990376,9707137150,132278,SRX25954304,SRS22536190,SRA1961613,Nantong University,Nantong University,,,,,,,,,,,,T,B,mate1 technical by mapping diff,illumina,hiseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,China,2024-09-03,Multi-stage,Multi-stage,Endothelium,Cardiovascular System 33672,SRR30530661,SRX25954304,SRS22536190,SRP530279,PRJNA1156090,Single cell transcriptome sequencing analysis of endothelial cells in control and high glucose treated zebrafish embryos,GSE276251,Transcriptome Analysis,Artificially sweetened beverages containing noncaloric monosaccharides were suggested as healthier alternatives to sugar sweetened beverages. Nevertheless the potential detrimental effects of these noncaloric monosaccharides on blood vessel function remain inadequately understood. Presently we have established a zebrafish model that exhibits significant excessive angiogenesis induced by high glucose. Utilizing this model we observed that glucose and noncaloric monosaccharides could induce excessive formation of blood vessels especially intersegmental vessels ISVs. The excessively branched vessels were observed to be formed by ectopic activation of quiescent endothelial cells ECs into tip cells. Single cell transcriptomic sequencing analysis of the endothelial cells in the embryos exposed to high glucose revealed an augmented ratio of capillary ECs proliferating ECs and a series of upregulated proangiogenic genes. Overall design: Firstly we isolated the EGFP positive cells from control and high glucose treated Tgfli1ep:EGFP CAAX transgenic embryos. Following the proteolytic dissociation of embryos the EGFP positive cells were isolated by fluorescence activated cell sorting FACS. Around 300500 zebrafish embryos were used for the ECs collection for each stage. The isolated ECs were analyzed using a large scale scRNA seq 10X Genomics platform.,,pubmed:39365738;pubmed:39882604,,endothelial cells,control,GSM8494123,,tissue:endothelial cells|cell type:endothelial cells|geo loc name:missing|collection date:missing,endothelial cells,control,Cell Ranger 3.0.2 https://github.com/10XGenomics/cellranger was used to convert the raw sequencing data to single cell level gene counts matrix. The clustering of single cells and the marker genes in each cluster were analyzed by Seurat 3.0 https://satijalab.org/seurat/install.html Assembly: The reference genome fasta format and gene annotation gtf format files were downloaded from Ensembl database release version 94. Supplementary files format and content: Tab separated values files and matrix files.,endothelial cells,Embryos were treated with 6% glucose from 24 hpf to 72 hpf.,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell 3’Reagent Kits v3 from 10X Genomics Company.,Tgkdrl:EGFP embryos were raised in E3 solution at 28.5℃ to the indicated developmental stage.,cell type:endothelial cells,GSM8494123,GSM8494123: endothelial cells,control; Danio rerio; RNA Seq,GSM8494123 r1,GSM8494123,1,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell three primeReagent Kits v3 from 10X Genomics Company.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina HiSeq 4000,,SRP530279,,,SH190424C_LR5796dpf_2_1_R1.fq.gz SH190424C_LR5796dpf_2_1_R2.fq.gz,fastq fastq,44811813000.0,149372710.0,GSM8494123 r3,0:150 1:150,A:10939691275;C:8613307673;G:13332283843;T:11926366839;N:163370,150,150,,,10939691275,8613307673,13332283843,11926366839,163370,SRX25954304,SRS22536190,SRA1961613,Nantong University,Nantong University,,,,,,,,,,,,T,B,mate1 technical by mapping diff,illumina,hiseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,China,2024-09-03,Multi-stage,Multi-stage,Endothelium,Cardiovascular System 33673,SRR30530662,SRX25954304,SRS22536190,SRP530279,PRJNA1156090,Single cell transcriptome sequencing analysis of endothelial cells in control and high glucose treated zebrafish embryos,GSE276251,Transcriptome Analysis,Artificially sweetened beverages containing noncaloric monosaccharides were suggested as healthier alternatives to sugar sweetened beverages. Nevertheless the potential detrimental effects of these noncaloric monosaccharides on blood vessel function remain inadequately understood. Presently we have established a zebrafish model that exhibits significant excessive angiogenesis induced by high glucose. Utilizing this model we observed that glucose and noncaloric monosaccharides could induce excessive formation of blood vessels especially intersegmental vessels ISVs. The excessively branched vessels were observed to be formed by ectopic activation of quiescent endothelial cells ECs into tip cells. Single cell transcriptomic sequencing analysis of the endothelial cells in the embryos exposed to high glucose revealed an augmented ratio of capillary ECs proliferating ECs and a series of upregulated proangiogenic genes. Overall design: Firstly we isolated the EGFP positive cells from control and high glucose treated Tgfli1ep:EGFP CAAX transgenic embryos. Following the proteolytic dissociation of embryos the EGFP positive cells were isolated by fluorescence activated cell sorting FACS. Around 300500 zebrafish embryos were used for the ECs collection for each stage. The isolated ECs were analyzed using a large scale scRNA seq 10X Genomics platform.,,pubmed:39365738;pubmed:39882604,,endothelial cells,control,GSM8494123,,tissue:endothelial cells|cell type:endothelial cells|geo loc name:missing|collection date:missing,endothelial cells,control,Cell Ranger 3.0.2 https://github.com/10XGenomics/cellranger was used to convert the raw sequencing data to single cell level gene counts matrix. The clustering of single cells and the marker genes in each cluster were analyzed by Seurat 3.0 https://satijalab.org/seurat/install.html Assembly: The reference genome fasta format and gene annotation gtf format files were downloaded from Ensembl database release version 94. Supplementary files format and content: Tab separated values files and matrix files.,endothelial cells,Embryos were treated with 6% glucose from 24 hpf to 72 hpf.,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell 3’Reagent Kits v3 from 10X Genomics Company.,Tgkdrl:EGFP embryos were raised in E3 solution at 28.5℃ to the indicated developmental stage.,cell type:endothelial cells,GSM8494123,GSM8494123: endothelial cells,control; Danio rerio; RNA Seq,GSM8494123 r1,GSM8494123,1,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell three primeReagent Kits v3 from 10X Genomics Company.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina HiSeq 4000,,SRP530279,,,SH190424C_LR5796dpf_2_2_R1.fq.gz SH190424C_LR5796dpf_2_2_R2.fq.gz,fastq fastq,22587582300.0,75291941.0,GSM8494123 r4,0:150 1:150,A:4762937825;C:4235264474;G:8108549401;T:5480746863;N:83737,150,150,,,4762937825,4235264474,8108549401,5480746863,83737,SRX25954304,SRS22536190,SRA1961613,Nantong University,Nantong University,,,,,,,,,,,,T,B,mate1 technical by mapping diff,illumina,hiseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,China,2024-09-03,Multi-stage,Multi-stage,Endothelium,Cardiovascular System 33674,SRR30530663,SRX25954304,SRS22536190,SRP530279,PRJNA1156090,Single cell transcriptome sequencing analysis of endothelial cells in control and high glucose treated zebrafish embryos,GSE276251,Transcriptome Analysis,Artificially sweetened beverages containing noncaloric monosaccharides were suggested as healthier alternatives to sugar sweetened beverages. Nevertheless the potential detrimental effects of these noncaloric monosaccharides on blood vessel function remain inadequately understood. Presently we have established a zebrafish model that exhibits significant excessive angiogenesis induced by high glucose. Utilizing this model we observed that glucose and noncaloric monosaccharides could induce excessive formation of blood vessels especially intersegmental vessels ISVs. The excessively branched vessels were observed to be formed by ectopic activation of quiescent endothelial cells ECs into tip cells. Single cell transcriptomic sequencing analysis of the endothelial cells in the embryos exposed to high glucose revealed an augmented ratio of capillary ECs proliferating ECs and a series of upregulated proangiogenic genes. Overall design: Firstly we isolated the EGFP positive cells from control and high glucose treated Tgfli1ep:EGFP CAAX transgenic embryos. Following the proteolytic dissociation of embryos the EGFP positive cells were isolated by fluorescence activated cell sorting FACS. Around 300500 zebrafish embryos were used for the ECs collection for each stage. The isolated ECs were analyzed using a large scale scRNA seq 10X Genomics platform.,,pubmed:39365738;pubmed:39882604,,endothelial cells,control,GSM8494123,,tissue:endothelial cells|cell type:endothelial cells|geo loc name:missing|collection date:missing,endothelial cells,control,Cell Ranger 3.0.2 https://github.com/10XGenomics/cellranger was used to convert the raw sequencing data to single cell level gene counts matrix. The clustering of single cells and the marker genes in each cluster were analyzed by Seurat 3.0 https://satijalab.org/seurat/install.html Assembly: The reference genome fasta format and gene annotation gtf format files were downloaded from Ensembl database release version 94. Supplementary files format and content: Tab separated values files and matrix files.,endothelial cells,Embryos were treated with 6% glucose from 24 hpf to 72 hpf.,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell 3’Reagent Kits v3 from 10X Genomics Company.,Tgkdrl:EGFP embryos were raised in E3 solution at 28.5℃ to the indicated developmental stage.,cell type:endothelial cells,GSM8494123,GSM8494123: endothelial cells,control; Danio rerio; RNA Seq,GSM8494123 r1,GSM8494123,1,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell three primeReagent Kits v3 from 10X Genomics Company.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina HiSeq 4000,,SRP530279,,,SH190424C_LR5796dpf_3_1_R1.fq.gz SH190424C_LR5796dpf_3_1_R2.fq.gz,fastq fastq,31458502200.0,104861674.0,GSM8494123 r5,0:150 1:150,A:7597642424;C:6175910515;G:9377029875;T:8307805635;N:113751,150,150,,,7597642424,6175910515,9377029875,8307805635,113751,SRX25954304,SRS22536190,SRA1961613,Nantong University,Nantong University,,,,,,,,,,,,T,B,mate1 technical by mapping diff,illumina,hiseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,China,2024-09-03,Multi-stage,Multi-stage,Endothelium,Cardiovascular System 33675,SRR30530664,SRX25954304,SRS22536190,SRP530279,PRJNA1156090,Single cell transcriptome sequencing analysis of endothelial cells in control and high glucose treated zebrafish embryos,GSE276251,Transcriptome Analysis,Artificially sweetened beverages containing noncaloric monosaccharides were suggested as healthier alternatives to sugar sweetened beverages. Nevertheless the potential detrimental effects of these noncaloric monosaccharides on blood vessel function remain inadequately understood. Presently we have established a zebrafish model that exhibits significant excessive angiogenesis induced by high glucose. Utilizing this model we observed that glucose and noncaloric monosaccharides could induce excessive formation of blood vessels especially intersegmental vessels ISVs. The excessively branched vessels were observed to be formed by ectopic activation of quiescent endothelial cells ECs into tip cells. Single cell transcriptomic sequencing analysis of the endothelial cells in the embryos exposed to high glucose revealed an augmented ratio of capillary ECs proliferating ECs and a series of upregulated proangiogenic genes. Overall design: Firstly we isolated the EGFP positive cells from control and high glucose treated Tgfli1ep:EGFP CAAX transgenic embryos. Following the proteolytic dissociation of embryos the EGFP positive cells were isolated by fluorescence activated cell sorting FACS. Around 300500 zebrafish embryos were used for the ECs collection for each stage. The isolated ECs were analyzed using a large scale scRNA seq 10X Genomics platform.,,pubmed:39365738;pubmed:39882604,,endothelial cells,control,GSM8494123,,tissue:endothelial cells|cell type:endothelial cells|geo loc name:missing|collection date:missing,endothelial cells,control,Cell Ranger 3.0.2 https://github.com/10XGenomics/cellranger was used to convert the raw sequencing data to single cell level gene counts matrix. The clustering of single cells and the marker genes in each cluster were analyzed by Seurat 3.0 https://satijalab.org/seurat/install.html Assembly: The reference genome fasta format and gene annotation gtf format files were downloaded from Ensembl database release version 94. Supplementary files format and content: Tab separated values files and matrix files.,endothelial cells,Embryos were treated with 6% glucose from 24 hpf to 72 hpf.,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell 3’Reagent Kits v3 from 10X Genomics Company.,Tgkdrl:EGFP embryos were raised in E3 solution at 28.5℃ to the indicated developmental stage.,cell type:endothelial cells,GSM8494123,GSM8494123: endothelial cells,control; Danio rerio; RNA Seq,GSM8494123 r1,GSM8494123,1,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell three primeReagent Kits v3 from 10X Genomics Company.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina HiSeq 4000,,SRP530279,,,SH190424C_LR5796dpf_3_2_R1.fq.gz SH190424C_LR5796dpf_3_2_R2.fq.gz,fastq fastq,15812987400.0,52709958.0,GSM8494123 r6,0:150 1:150,A:3317721700;C:3009997461;G:5662825685;T:3822382737;N:59817,150,150,,,3317721700,3009997461,5662825685,3822382737,59817,SRX25954304,SRS22536190,SRA1961613,Nantong University,Nantong University,,,,,,,,,,,,T,B,mate1 technical by mapping diff,illumina,hiseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,China,2024-09-03,Multi-stage,Multi-stage,Endothelium,Cardiovascular System 33676,SRR30530665,SRX25954304,SRS22536190,SRP530279,PRJNA1156090,Single cell transcriptome sequencing analysis of endothelial cells in control and high glucose treated zebrafish embryos,GSE276251,Transcriptome Analysis,Artificially sweetened beverages containing noncaloric monosaccharides were suggested as healthier alternatives to sugar sweetened beverages. Nevertheless the potential detrimental effects of these noncaloric monosaccharides on blood vessel function remain inadequately understood. Presently we have established a zebrafish model that exhibits significant excessive angiogenesis induced by high glucose. Utilizing this model we observed that glucose and noncaloric monosaccharides could induce excessive formation of blood vessels especially intersegmental vessels ISVs. The excessively branched vessels were observed to be formed by ectopic activation of quiescent endothelial cells ECs into tip cells. Single cell transcriptomic sequencing analysis of the endothelial cells in the embryos exposed to high glucose revealed an augmented ratio of capillary ECs proliferating ECs and a series of upregulated proangiogenic genes. Overall design: Firstly we isolated the EGFP positive cells from control and high glucose treated Tgfli1ep:EGFP CAAX transgenic embryos. Following the proteolytic dissociation of embryos the EGFP positive cells were isolated by fluorescence activated cell sorting FACS. Around 300500 zebrafish embryos were used for the ECs collection for each stage. The isolated ECs were analyzed using a large scale scRNA seq 10X Genomics platform.,,pubmed:39365738;pubmed:39882604,,endothelial cells,control,GSM8494123,,tissue:endothelial cells|cell type:endothelial cells|geo loc name:missing|collection date:missing,endothelial cells,control,Cell Ranger 3.0.2 https://github.com/10XGenomics/cellranger was used to convert the raw sequencing data to single cell level gene counts matrix. The clustering of single cells and the marker genes in each cluster were analyzed by Seurat 3.0 https://satijalab.org/seurat/install.html Assembly: The reference genome fasta format and gene annotation gtf format files were downloaded from Ensembl database release version 94. Supplementary files format and content: Tab separated values files and matrix files.,endothelial cells,Embryos were treated with 6% glucose from 24 hpf to 72 hpf.,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell 3’Reagent Kits v3 from 10X Genomics Company.,Tgkdrl:EGFP embryos were raised in E3 solution at 28.5℃ to the indicated developmental stage.,cell type:endothelial cells,GSM8494123,GSM8494123: endothelial cells,control; Danio rerio; RNA Seq,GSM8494123 r1,GSM8494123,1,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell three primeReagent Kits v3 from 10X Genomics Company.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina HiSeq 4000,,SRP530279,,,SH190424C_LR5796dpf_4_1_R1.fq.gz SH190424C_LR5796dpf_4_1_R2.fq.gz,fastq fastq,19472976900.0,64909923.0,GSM8494123 r7,0:150 1:150,A:4109297307;C:3636046624;G:6996008921;T:4731548865;N:75183,150,150,,,4109297307,3636046624,6996008921,4731548865,75183,SRX25954304,SRS22536190,SRA1961613,Nantong University,Nantong University,,,,,,,,,,,,T,B,mate1 technical by mapping diff,illumina,hiseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,China,2024-09-03,Multi-stage,Multi-stage,Endothelium,Cardiovascular System 33677,SRR30530666,SRX25954304,SRS22536190,SRP530279,PRJNA1156090,Single cell transcriptome sequencing analysis of endothelial cells in control and high glucose treated zebrafish embryos,GSE276251,Transcriptome Analysis,Artificially sweetened beverages containing noncaloric monosaccharides were suggested as healthier alternatives to sugar sweetened beverages. Nevertheless the potential detrimental effects of these noncaloric monosaccharides on blood vessel function remain inadequately understood. Presently we have established a zebrafish model that exhibits significant excessive angiogenesis induced by high glucose. Utilizing this model we observed that glucose and noncaloric monosaccharides could induce excessive formation of blood vessels especially intersegmental vessels ISVs. The excessively branched vessels were observed to be formed by ectopic activation of quiescent endothelial cells ECs into tip cells. Single cell transcriptomic sequencing analysis of the endothelial cells in the embryos exposed to high glucose revealed an augmented ratio of capillary ECs proliferating ECs and a series of upregulated proangiogenic genes. Overall design: Firstly we isolated the EGFP positive cells from control and high glucose treated Tgfli1ep:EGFP CAAX transgenic embryos. Following the proteolytic dissociation of embryos the EGFP positive cells were isolated by fluorescence activated cell sorting FACS. Around 300500 zebrafish embryos were used for the ECs collection for each stage. The isolated ECs were analyzed using a large scale scRNA seq 10X Genomics platform.,,pubmed:39365738;pubmed:39882604,,endothelial cells,control,GSM8494123,,tissue:endothelial cells|cell type:endothelial cells|geo loc name:missing|collection date:missing,endothelial cells,control,Cell Ranger 3.0.2 https://github.com/10XGenomics/cellranger was used to convert the raw sequencing data to single cell level gene counts matrix. The clustering of single cells and the marker genes in each cluster were analyzed by Seurat 3.0 https://satijalab.org/seurat/install.html Assembly: The reference genome fasta format and gene annotation gtf format files were downloaded from Ensembl database release version 94. Supplementary files format and content: Tab separated values files and matrix files.,endothelial cells,Embryos were treated with 6% glucose from 24 hpf to 72 hpf.,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell 3’Reagent Kits v3 from 10X Genomics Company.,Tgkdrl:EGFP embryos were raised in E3 solution at 28.5℃ to the indicated developmental stage.,cell type:endothelial cells,GSM8494123,GSM8494123: endothelial cells,control; Danio rerio; RNA Seq,GSM8494123 r1,GSM8494123,1,Embryos were transferred into a 15 mL falcon tube with 10 mL phosphate buffered saline PBS containing 0.25% trypsin and incubated in a rolling machine for 30 min at 28°C during which they were pipetted up and down per 5 min. post centrifuging for 5 min at 800 g at 4°C cells were resuspended in PBS containing 0.25% trypsin and 15% fetal calf serum FCS to stop the digestion and centrifuged for 5 min at 800 g at 4°C. Cells were rinsed with PBS containing 2% FCS for 2 times and resuspended in PBS. EGFP positive cells were first enriched by fluorescence activated cell sorting FACS and then went through library preparation following the standard protocol named Chromium Single Cell three primeReagent Kits v3 from 10X Genomics Company.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina HiSeq 4000,,SRP530279,,,SH190424C_LR5796dpf_4_2_R1.fq.gz SH190424C_LR5796dpf_4_2_R2.fq.gz,fastq fastq,39005746200.0,130019154.0,GSM8494123 r8,0:150 1:150,A:9542890616;C:7456459618;G:11598648802;T:10407604379;N:142785,150,150,,,9542890616,7456459618,11598648802,10407604379,142785,SRX25954304,SRS22536190,SRA1961613,Nantong University,Nantong University,,,,,,,,,,,,T,B,mate1 technical by mapping diff,illumina,hiseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,China,2024-09-03,Multi-stage,Multi-stage,Endothelium,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.,,pubmed:39713454,,Cited UI L004,GSM8581895,,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 “count” 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,,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’ Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP539406,,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",,,,,,,,,,,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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.,,pubmed:39713454,,Cited UI L003,GSM8581894,,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 “count” 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,,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’ Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP539406,,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",,,,,,,,,,,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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.,,pubmed:39713454,,Cited UI L002,GSM8581893,,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 “count” 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,,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’ Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP539406,,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",,,,,,,,,,,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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.,,pubmed:39713454,,Cited UI L001,GSM8581892,,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 “count” 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,,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’ Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP539406,,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",,,,,,,,,,,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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.,,pubmed:39713454,,Cited 3dpa L004,GSM8581891,,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 “count” 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,,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’ Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP539406,,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",,,,,,,,,,,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,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.,,pubmed:39713454,,Cited 3dpa L003,GSM8581890,,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 “count” 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,,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’ Reagent Kits v3.1Dual Index according to the manufacturer's protocol and using the 10X Chromium Controller.,,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.,,RNA-Seq,TRANSCRIPTOMIC SINGLE CELL,cDNA,PAIRED,ILLUMINA,Illumina NovaSeq 6000,,SRP539406,,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",,,,,,,,,,,,B,,usable mapping rate,illumina,novaseq_era,unknown,cdna_unspecified,unknown,sc,single_cell_droplet,10x,,United States,2024-10-18,Undetermined,Undetermined,Heart,Cardiovascular System