Effect of endothelial specific inhibition of Brg1 on gene expression during zebrafish heart regeneration [RNA-seq]
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ABSTRACT:
PROVIDER: PRJNA827593 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR18779951_1.fastq.gz | Fastqsanger.gz | |||
| SRR18779951_2.fastq.gz | Fastqsanger.gz | |||
| SRR18779952_1.fastq.gz | Fastqsanger.gz | |||
| SRR18779952_2.fastq.gz | Fastqsanger.gz | |||
| SRR18779953_1.fastq.gz | Fastqsanger.gz |
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Project description:Endothelial Brg1-Notch Signaling Regulates Zebrafish Heart Regeneration
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Project description:To decipher the molecular action of endothelial Brg1 in the regulation of zebrafish heart regeneration, we applied Tg(kdrl:eGFP) to label cardiac endothelial cells including the endocardium, and achieved endothelium-specific over-expression of DN-xBrg1 by using the compound zebrafish line consisting of Tg(ubi:loxp-DsRed-STOP-loxp-DN-xBrg1; kdrl:CreER; kdrl:eGFP) (defined as DNK), while we used Tg(ubi:loxp-DsRed-STOP-loxp-DN-xBrg1; kdrl-eGFP) as control (CtrlK) in the presence of 4-HT starting at 3 days before ventricular resection. The kdrl:eGFP endothelial cells, which were sorted by FACS (fluorescence-activated cell sorting) from CtrlK and DNK hearts at 7 dpa, were subjected to RNA-seq analysis.
2023-04-03 | GSE200936 | GEO
Project description:Ischemic cardiopathy is the leading cause of death in the world, for which efficient regenerative therapy is not currently available. In mammals, after a myocardial infarction episode, the damaged myocardium is replaced by scar tissue featuring collagen deposition and tissue remodelling with negligible cardiomyocyte proliferation. Zebrafish, in contrast, display an extensive regenerative capacity as they are able to restore completely lost cardiac tissue after partial ventricular amputation. Due to the lack of genetic lineage tracing evidence, it is not yet clear if new cardiomyocytes arise from existing contractile cells or from an uncharacterised set of progenitors cells. Nonetheless, several genes and molecules have been shown to participate in this process, some of them being cardiomyocyte mitogens in vitro. Though questions as what are the early signals that drive the regenerative response and what is the relative role of each cardiac cell in this process still need to be answered, the zebrafish is emerging as a very valuable tool to understand heart regeneration and devise strategies that may be of potential value to treat human cardiac disease. Here, we performed a genome-wide transcriptome profile analysis focusing on the early time points of zebrafish heart regeneration and compared our results with those of previously published data. Our analyses confirmed the differential expression of several transcripts, and identified additional genes the expression of which is differentially regulated during zebrafish heart regeneration. We validated the microarray data by conventional and/or quantitative RT-PCR. For a subset of these genes, their expression pattern was analyzed by in situ hybridization and shown to be upregulated in the regenerating area of the heart. The specific role of these new transcripts during zebrafish heart regeneration was further investigated ex vivo using primary cultures of zebrafish cardiomyocytes and/or epicardial cells. Our results offer new insights into the biology of heart regeneration in the zebrafish and, together with future experiments in mammals, may be of potential interest for clinical applications. In order to study zebrafish heart regeneration, a time course experiment was realized where amputated heart regenerating were compared to control heart. Samples in triplicate were extracted at 1, 3, 5 and 7 days post-amputation.
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Project description:we profiled chromatin accessibility of zebrafish endothelial cells after amputation injury and identify an mmp14b endothelial enhancer induced by heart injury in zebrafish. We show that the enhancer is required for mmp14b expression and regeneration in response to heart injury. Moreover, the enhancer depends on a consensus TEAD-binding motif, suggesting a role for Hippo signaling upstream of mmp14b.
2023-07-24 | GSE211424 | GEO
Project description:To decipher the effect of endothelial specific inhibition of Brg1 on histone marker H3K4me3 in the zebrafish genome during zebrafish heart regeneration, we achieved endothelium-specific over-expression of DN-xBrg1 by using the compound zebrafish line consisting of Tg(ubi:loxp-DsRed-STOP-loxp-DN-xBrg1; kdrl:CreER) (defined as DN), while we used Tg(ubi:loxp-DsRed-STOP-loxp-DN-xBrg1) as control (Ctrl) in the presence of 4-HT starting at 3 days before ventricular resection. The whole ventricles from CtrlK and DNK hearts at 7 dpa were subjected to ChIP-seq analysis using H3K4me3 antibody.
2023-04-03 | GSE200937 | GEO
Project description:The goal of this study is to compare the NGS-derived heart transcriptome profiling (RNA-seq) between kdrl GFP positive endothelial cells of 4-HT induced Tg(ubi:loxp-DsRed-stop-loxp-DN-xBrg1; kdrl:CreER; kdrl:eGFP) (DNK) and Tg(ubi:loxp-DsRed-stop-loxp-DN-xBrg1; kdrl:eGFP) (CtrlK) injured hearts.
2022-07-09 | GSE154193 | GEO
Project description:Ischemic cardiopathy is the leading cause of death in the world, for which efficient regenerative therapy is not currently available. In mammals, after a myocardial infarction episode, the damaged myocardium is replaced by scar tissue featuring collagen deposition and tissue remodelling with negligible cardiomyocyte proliferation. Zebrafish, in contrast, display an extensive regenerative capacity as they are able to restore completely lost cardiac tissue after partial ventricular amputation. Due to the lack of genetic lineage tracing evidence, it is not yet clear if new cardiomyocytes arise from existing contractile cells or from an uncharacterised set of progenitors cells. Nonetheless, several genes and molecules have been shown to participate in this process, some of them being cardiomyocyte mitogens in vitro. Though questions as what are the early signals that drive the regenerative response and what is the relative role of each cardiac cell in this process still need to be answered, the zebrafish is emerging as a very valuable tool to understand heart regeneration and devise strategies that may be of potential value to treat human cardiac disease. Here, we performed a genome-wide transcriptome profile analysis focusing on the early time points of zebrafish heart regeneration and compared our results with those of previously published data. Our analyses confirmed the differential expression of several transcripts, and identified additional genes the expression of which is differentially regulated during zebrafish heart regeneration. We validated the microarray data by conventional and/or quantitative RT-PCR. For a subset of these genes, their expression pattern was analyzed by in situ hybridization and shown to be upregulated in the regenerating area of the heart. The specific role of these new transcripts during zebrafish heart regeneration was further investigated ex vivo using primary cultures of zebrafish cardiomyocytes and/or epicardial cells. Our results offer new insights into the biology of heart regeneration in the zebrafish and, together with future experiments in mammals, may be of potential interest for clinical applications.
2010-02-25 | GSE17993 | GEO
Project description:Adult zebrafish, in contrast to mammals, are able to regenerate their hearts in response to injury or experimental amputation. Our understanding of the cellular and molecular bases that underlie this process, although fragmentary, has increased significantly over the last years. However, the role of the extracellular matrix (ECM) during zebrafish heart regeneration has been comparatively rarely explored. Here, we set out to characterize the ECM protein composition in adult zebrafish hearts, and whether it changed during the regenerative response. For this purpose, we first established a decellularization protocol of adult zebrafish ventricles that significantly enriched the yield of ECM proteins. We then performed proteomic analyses of decellularized control hearts and at different times of regeneration. Our results show a dynamic change in ECM protein composition, most evident at the earliest (7 days post-amputation) time-point analyzed. Regeneration associated with sharp increases in specific ECM proteins, and with an overall decrease in collagens and cytoskeletal proteins. We finally tested by atomic force microscopy that the changes in ECM composition translated to decreased ECM stiffness. Our cumulative results identify changes in the protein composition and mechanical properties of the zebrafish heart ECM during regeneration.
2019-08-26 | PXD010092 | Pride
Project description:After heart injury, adult zebrafish can perfectly regenerate its heart without any scar tissue left. We performed 100bp*2, paired-end, strand-specific, polyA-positive RNA-seq on hearts from 2 group of adult zebrafish, in which one was sham group and the other 7 days after heart tip amputation (7dpa). We found pathways involving hydrogen peroxidate related functions significantly up-regulated in 7dpa group, indicating its role in heart regeneration. RNA-seq: hearts from sham or 7dpa adult zebrafish
2014-12-24 | E-GEOD-50203 | biostudies-arrayexpress
Project description:The zebrafish has the capacity to regenerate its heart after severe injury. While the function of a few genes during this process has been studied, we are far from fully understanding how genes interact to coordinate heart regeneration. To enable systematic insights into this phenomenon, we generated and integrated a dynamic co-expression network of heart regeneration in the zebrafish and linked systems-level properties to the underlying molecular events. Across multiple post-injury time points, the network displays topological attributes of biological relevance. We show that regeneration steps are mediated by modules of transcriptionally coordinated genes, and by genes acting as network hubs. We also established direct associations between hubs and validated drivers of heart regeneration with murine and human orthologs. The resulting models and interactive analysis tools are available at http://infused.vital-it.ch. Using a worked example, we demonstrate the usefulness of this unique open resource for hypothesis generation and in silico screening for genes involved in heart regeneration. In order to monitor the whole regeneration process, we recovered samples at different time points post-injury: 4 h, 1 day, 3 days, 7 days, 14 days and 90 days (respectively 4 hpi, 1 dpi, 3 dpi, 7 dpi, 14 dpi and 90 dpi). Cryoinjured hearts were compared to healthy hearts from control fish in 3 independent experiments.
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