ArticleCirculation2023
In Vivo Dissection of Chamber-Selective Enhancers Reveals Estrogen-Related Receptor as a Regulator of Ventricular Cardiomyocyte Identity.
Article in Circulation, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.
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Who cites it
31 citing papers in PubMed, 38 citations in OpenAlex.
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- Creating an atlas of variant effects to resolve variants of uncertain significance and guide cardiovascular medicine.Nature reviews. Cardiology · 2026Review
- Enhancer Dynamics for Gene Regulation in the Cardiovascular System.Arteriosclerosis, thrombosis, and vascular biology · 2026Review
- A reduced TBX5-dependent gene regulatory network links atrial fibrillation and heart failure.Nature cardiovascular research · 2026Article
- Enhancer Trajectories in Lineage Commitment: Regulatory Logic of States and Cooperation.Biomolecules · 2026Review
- Functional architecture of cardiac TF regulatory landscapes in control of mammalian heart development.bioRxiv : the preprint server for biology · 2025Article
- Lysine lactylation in diseases: beyond histone lactylation.Cell death & disease · 2025Review
- A combined genomic arrhythmia propensity score delineates cumulative risk.Cell reports. Medicine · 2025Article
- Cited4a limits cardiomyocyte dedifferentiation and proliferation during zebrafish heart regeneration.Development (Cambridge, England) · 2025Article
- TBX5 and CHD4 Coordinately Activate Atrial Cardiomyocyte Genes to Maintain Cardiac Rhythm Homeostasis.Circulation · 2025Article
- SCIG: Machine learning uncovers cell identity genes in single cells by genetic sequence codes.Nucleic acids research · 2025Article
- Dissecting cardiovascular disease-associated noncoding genetic variants using human iPSC models.Stem cell reports · 2025Review
- Prognostic assessment of cervical cancer based on biomarkers: the interaction of ERRα and immune microenvironment.Virology journal · 2025Article
- Targeting senescence and GATA4 in age-related cardiovascular disease: a comprehensive approach.Biogerontology · 2025Review
- AnFrontiers in genetics · 2025Article
- Cardiac Applications of CRISPR/AAV-Mediated Precise Genome Editing.bioRxiv : the preprint server for biology · 2024Article
- PRDM16 determines specification of ventricular cardiomyocytes by suppressing alternative cell fates.Life science alliance · 2024Article
- Active enhancers: recent research advances and insights into disease.Biology direct · 2024Review
- A Genomic Link From Heart Failure to Atrial Fibrillation Risk: FOG2 Modulates a TBX5/GATA4-Dependent Atrial Gene Regulatory Network.Circulation · 2024Article
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Authors and funding
16 authors at 4 institutions in 2 countries.
Funding
Abstract
backgroundCardiac chamber-selective transcriptional programs underpin the structural and functional differences between atrial and ventricular cardiomyocytes (aCMs and vCMs). The mechanisms responsible for these chamber-selective transcriptional programs remain largely undefined.
methodsWe nominated candidate chamber-selective enhancers (CSEs) by determining the genome-wide occupancy of 7 key cardiac transcription factors (GATA4, MEF2A, MEF2C, NKX2-5, SRF, TBX5, TEAD1) and transcriptional coactivator P300 in atria and ventricles. Candidate enhancers were tested using an adeno-associated virus-mediated massively parallel reporter assay. Chromatin features of CSEs were evaluated by performing assay of transposase accessible chromatin sequencing and acetylation of histone H3 at lysine 27-HiChIP on aCMs and vCMs. CSE sequence requirements were determined by systematic tiling mutagenesis of 29 CSEs at 5 bp resolution. Estrogen-related receptor (ERR) function in cardiomyocytes was evaluated by Cre-loxP-mediated inactivation of ERRα and ERRγ in cardiomyocytes.
resultsWe identified 134 066 and 97 506 regions reproducibly occupied by at least 1 transcription factor or P300, in atria or ventricles, respectively. Enhancer activities of 2639 regions bound by transcription factors or P300 were tested in aCMs and vCMs by adeno-associated virus-mediated massively parallel reporter assay. This identified 1092 active enhancers in aCMs or vCMs. Several overlapped loci associated with cardiovascular disease through genome-wide association studies, and 229 exhibited chamber-selective activity in aCMs or vCMs. Many CSEs exhibited differential chromatin accessibility between aCMs and vCMs, and CSEs were enriched for aCM- or vCM-selective acetylation of histone H3 at lysine 27-anchored loops. Tiling mutagenesis of 29 CSEs identified the binding motif of ERRα/γ as important for ventricular enhancer activity. The requirement of ERRα/γ to activate ventricular CSEs and promote vCM identity was confirmed by loss of the vCM gene profile in ERRα/γ knockout vCMs.
conclusionsWe identified 229 CSEs that could be useful research tools or direct therapeutic gene expression. We showed that chamber-selective multi-transcription factor, P300 occupancy, open chromatin, and chromatin looping are predictive features of CSEs. We found that ERRα/γ are essential for maintenance of ventricular identity. Finally, our gene expression, epigenetic, 3-dimensional genome, and enhancer activity atlas provide key resources for future studies of chamber-selective gene regulation.
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