run_metadata: 76793
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| 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 |
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| 76793 | SRR25374439 | SRX21113459 | SRS18382053 | SRP450614 | PRJNA996961 | Single cell transcriptome profiling of zebrafish pancreatic beta cells segregated by CaMPARI based calcium labeling. | GSE237867 | Transcriptome Analysis | Coordination of cell activity trough Ca2+ waves enables pancreatic ß cells to secrete precise quantities of insulin in response to blood sugar. However how the coordinating Ca2+ waves are orchestrated in space and time remains unknown. By applying functional Ca2+ imaging using CaMPARI and single molecule RNA detection we reveal a gene signature depicting a molecularly and metabolically distinct state of first responder ß cells. We highlight Vitamin B6 metabolism as a signature pathway associated with the first responder ß cells . Overall design: Ex vivo photoconversion of ins:CaMPARI islets and Fluorescence activated cell sorting FACS The primary islets from 4 mpf Tgins:CaMPARI animals were dissected from the fish post euthanasia. Each islet was placed in a well of 24 well plate with 5 ml of DPBS medium supplemented with calcium magnesium ThermoFisher 14040141 along with the appropriate concentration of D Glucose. The islets were allowed to equilibrate for 5 min. Subsequently the entire 24 well plate was photoconverted using a 405 nm LED array Loctite 1167593 for 3 seconds. The LED array evenly illuminated the entire dish with an intensity of 400 mW/cm2 and was triggered using a foot pedal switch. An internal timer using an LED controller Loctite 1359255 was utilized for precise timing of light exposure. The photoconverted islets were dissociated into single cells by incubation in TrypLE ThermoFisher 12563029 at 37°C in a benchtop shaker set at 450 rpm for 45 min. Following dissociation TrypLE was inactivated with 10% FBS and the cells pelleted by centrifugation at 500 g for 10 min at 4°C. The supernatant was carefully discarded and the pellet re suspended in 500 µl of HBSS without xxx+ Mg2+. To remove debris the solution was passed over a 30 µm cell filter Miltenyi Biotec 130 041 407. To remove dead cells calcein violet ThermoFisher C34858 was added at a final concentration of 1 µM and the cell suspension incubated at room temperature for 20 minutes. The single cell preparation was sorted through 100 µm nozzle. The following channels were utilized in FACS: Pacific Blue for calcein violet; FITC Fluorescein isothiocyanate for green fluorescence; and PE Phycoerythrin for red fluorescence. Single cell RNA Sequencing For single cell RNA Seq ß cells isolated from Tgins:CaMPARI islets were subjected to profiling using Smart Seq2 protocol from Takara. For this islets were isolated photoconverted ex vivo dissociated and FAC sorted as described above. ß cells were collected from two conditions: responsive ß cells displaying photoconversion at 2.5 mM; and non responsive ß cells without xxx at 16.5 mM. Photoconversion was defined as a high red to green ratio. For FACS of each condition index sorting was utilized and the cells were collected in 96 well plate containing lysis buffer 2 µl of nuclease free water with 0.2% Triton X 100 and 4 U murine RNase Inhibitor NEB. For each condition a total of 93 cells were collected for profiling. Preparation of cDNA library and sequencing was performed exactly as described in a previous publication Singh et al. Scientific Reports 2018; doi: 10.1038/s41598 018 35218 5. | pubmed:38924394 | ExVi2Red 01 H12 | GSM7655661 | source name:pancreas|tissue:pancreas|age:4 mpf|cell type:beta cell|genotype:Tgins:CaMPARI|treatment:photoconversion|geo loc name:missing|collection date:missing | ExVi2Red 01 H12 | Raw reads in fastq format were trimmed using trim galore with default parameters to remove adapter sequences. Trimmed reads were aligned to the zebrafish genome GRCz10 using HISAT2 with default parameters. htseq count was used to assign reads to exons thus eventually getting counts per gene. For analysis cells with more than 800 detected genes were utilized. Transcriptional profile of responsive and non responsive were compared using ROTS with default parameters. Genes with false discovery rate FDR less than 0.05 were considered as differentially expressed. For gene ontology GO analysis of differentially expressed genes FishEnrichR was utilized. As background genes expressed in at least 5 % of the cells were used. Assembly: GRCz10 Supplementary files format and content: csv | pancreas | The primary islets from 4 mpf Tgins:CaMPARI animals were dissected from the fish post euthanasia. Each islet was placed in a well of 24 well plate with 5 ml of DPBS medium supplemented with calcium magnesium ThermoFisher 14040141 along with the appropriate concentration of D Glucose. The islets were allowed to equilibrate for 5 min. Subsequently the entire 24 well plate was photoconverted using a 405 nm LED array Loctite 1167593 for 3 seconds. The LED array evenly illuminated the entire dish with an intensity of 400 mW/cm2 and was triggered using a foot pedal switch. An internal timer using an LED controller Loctite 1359255 was utilized for precise timing of light exposure. | The photoconverted islets were dissociated into single cells by incubation in TrypLE ThermoFisher 12563029 at 37°C in a benchtop shaker set at 450 rpm for 45 min. Following dissociation TrypLE was inactivated with 10% FBS and the cells pelleted by centrifugation at 500 g for 10 min at 4°C. The supernatant was carefully discarded and the pellet re suspended in 500 µl of HBSS without xxx+ Mg2+. To remove debris the solution was passed over a 30 µm cell filter Miltenyi Biotec 130 041 407. To remove dead cells calcein violet ThermoFisher C34858 was added at a final concentration of 1 µM and the cell suspension incubated at room temperature for 20 minutes. The single cell preparation was sorted through 100 µm nozzle. The following channels were utilized in FACS: Pacific Blue for calcein violet; FITC Fluorescein isothiocyanate for green fluorescence; and PE Phycoerythrin for red fluorescence. For single cell RNA Seq β cells isolated from Tgins:CaMPARI islets were subjected to profiling using Smart Seq2 protocol from Takara. For this islets were isolated photoconverted ex vivo dissociated and FAC sorted as described above. β cells were collected from two conditions: responsive β cells displaying photoconversion at 2.5 mM; and non responsive β cells without xxx at 16.5 mM. Photoconversion was defined as a high red to green ratio. For FACS of each condition index sorting was utilized and the cells were collected in 96 well plate containing lysis buffer 2 µl of nuclease free water with 0.2% Triton X 100 and 4 U murine RNase Inhibitor NEB. For each condition a total of 93 cells were collected for profiling. Preparation of cDNA library and sequencing was performed exactly as described in a previous publication Singh et al. Scientific Reports 2018; doi: 10.1038/s41598 018 35218 5. Smart Seq2 from Takara | 4 mpf Tgins:CaMPARI zebrafish | tissue:pancreas|age:4 mpf|cell type:beta cell|genotype:Tgins:CaMPARI|treatment:photoconversion | GSM7655661 | GSM7655661: ExVi2Red 01 H12; Danio rerio; RNA Seq | GSM7655661 r1 | GSM7655661 | 1 | The photoconverted islets were dissociated into single cells by incubation in TrypLE ThermoFisher 12563029 at 37°C in a benchtop shaker set at 450 rpm for 45 min. Following dissociation TrypLE was inactivated with 10% FBS and the cells pelleted by centrifugation at 500 g for 10 min at 4°C. The supernatant was carefully discarded and the pellet re suspended in 500 µl of HBSS without xxx+ Mg2+. To remove debris the solution was passed over a 30 µm cell filter Miltenyi Biotec 130 041 407. To remove dead cells calcein violet ThermoFisher C34858 was added at a final concentration of 1 µM and the cell suspension incubated at room temperature for 20 minutes. The single cell preparation was sorted through 100 µm nozzle. The following channels were utilized in FACS: Pacific Blue for calcein violet; FITC Fluorescein isothiocyanate for green fluorescence; and PE Phycoerythrin for red fluorescence. For single cell RNA Seq β cells isolated from Tgins:CaMPARI islets were subjected to profiling using Smart Seq2 protocol from Takara. For this islets were isolated photoconverted ex vivo dissociated and FAC sorted as described above. β cells were collected from two conditions: responsive β cells displaying photoconversion at 2.5 mM; and non responsive β cells without xxx at 16.5 mM. Photoconversion was defined as a high red to green ratio. For FACS of each condition index sorting was utilized and the cells were collected in 96 well plate containing lysis buffer 2 µl of nuclease free water with 0.2% Triton X 100 and 4 U murine RNase Inhibitor NEB. For each condition a total of 93 cells were collected for profiling. Preparation of cDNA library and sequencing was performed exactly as described in a previous publication Singh et al. Scientific Reports 2018; doi: 10.1038/s41598 018 35218 5. Smart Seq2 from Takara | RNA-Seq | TRANSCRIPTOMIC SINGLE CELL | cDNA | SINGLE | ILLUMINA | NextSeq 500 | SRP450614 | loader:fastq load.py | L21309_Track-51625_R1.fastq.gz | fastq | 42457552.0 | 558652.0 | GSM7655661 r1 | 0:76 | A:11537651;C:9525737;G:9537176;T:11855919;N:1069 | 76 | 11537651 | 9525737 | 9537176 | 11855919 | 1069 | SRX21113459 | SRS18382053 | SRA1676813 | Regeneration and Stress Biology, IRIBHM, ULB | Regeneration and Stress Biology, IRIBHM, ULB | 1 | 0.84093 | 0.07999 | 0.94458 | 0.51356 | 76 | B | usable mapping rate | illumina | nextseq | unknown | cdna_unspecified | unknown | sc | single_cell_plate | smartseq | Belgium | 2023-07-20 | Adult | Adult | Pancreas | Endocrine System |