Cited by 424Cardiac Fibrosis and RemodelingCardiomyopathy and Myosin StudiesSingle-cell and spatial transcriptomics

The DOI matches its Crossref record; 65 of the 65 references it cites were found in a registry or an index.

Single-nucleus profiling of human dilated and hypertrophic cardiomyopathy

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Abstract

Heart failure encompasses a heterogeneous set of clinical features that converge on impaired cardiac contractile function 1,2 and presents a growing public health concern. Previous work has highlighted changes in both transcription and protein expression in failing hearts 3,4, but may overlook molecular changes in less prevalent cell types. Here we identify extensive molecular alterations in failing hearts at single-cell resolution by performing single-nucleus RNA sequencing of nearly 600,000 nuclei in left ventricle samples from 11 hearts with dilated cardiomyopathy and 15 hearts with hypertrophic cardiomyopathy as well as 16 non-failing hearts. The transcriptional profiles of dilated or hypertrophic cardiomyopathy hearts broadly converged at the tissue and cell-type level. Further, a subset of hearts from patients with cardiomyopathy harbour a unique population of activated fibroblasts that is almost entirely absent from non-failing samples. We performed a CRISPR-knockout screen in primary human cardiac fibroblasts to evaluate this fibrotic cell state transition; knockout of genes associated with fibroblast transition resulted in a reduction of myofibroblast cell-state transition upon TGFβ1 stimulation for a subset of genes. Our results provide insights into the transcriptional diversity of the human heart in health and disease as well as new potential therapeutic targets and biomarkers for heart failure.

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Metadata

Authors
Chaffin, M., Papangeli, I., Simonson, B., Akkad, A.-D., Hill, M. C., Arduini, A., Fleming, S. J., Melanson, M., Hayat, S., Kost-Alimova, M., Atwa, O., Ye, J., Bedi, K. C., Nahrendorf, M., Kaushik, V. K., Stegmann, C. M., Margulies, K. B., Tucker, N. R., & Ellinor, P. T.
Affiliations
  • Broad Institute (US)
  • University of Pennsylvania (US)
  • Massachusetts General Hospital (US)
  • Masonic Medical Research Laboratory (US)
Corresponding author
Ellinor, Patrick T.
Venue
Nature
Published
2022-06-22
Volume
608
Issue
7921
Pages
174-180
ISSN
  • 0028-0836 (ISSN-L)
  • 1476-4687
OpenAlex
W4283257569
Cited by
418
References
61
Citations by year
2026: 110 · 2025: 120 · 2024: 100 · 2023: 67 · 2022: 19
FWCI
54.31
Type
journal article
Language
en
Open access
Locations
  • Nature (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • RePEc: Research Papers in Economics (submittedVersion)
Funders
  • American Heart Association
  • National Institutes of Health (1s10od026839-01)
  • National Heart, Lung, and Blood Institute (K01HL140187, R01HL128914, R01HL105993, K24HL105780, R01HL092577, T32HL007208)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Fibrosis and Remodeling
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiomyopathy and Myosin Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Single-cell and spatial transcriptomics
Keywords
dilated cardiomyopathy, hypertrophic cardiomyopathy, heart failure, single-nucleus RNA sequencing, cardiac fibroblasts, myofibroblast differentiation, myocardial fibrosis, TGF-β1 signaling, CRISPR knockout screen, cardiac transcriptome, left ventricle, biomarkers, therapeutic target
MeSH terms
RNA-Seq, Cardiomyopathy, Dilated, Cardiomyopathy, Hypertrophic, Cell Nucleus, Cells, Cultured, Heart Failure, Heart Ventricles, Humans, Myocardium, Transcription, Genetic, Case-Control Studies, Gene Expression Profiling, Transforming Growth Factor beta1, Gene Knockout Techniques, Myofibroblasts, Single-Cell Analysis, CRISPR-Cas Systems

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