Journal
NATURE CELL BIOLOGY
Volume 22, Issue 1, Pages 108-+Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41556-019-0446-7
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Funding
- National Key R&D Program of China [2016YFC1300900, 2017YFA0103700]
- CAMS Initiative for Innovative Medicine [2017-I2M-1-003, 2018-I2M-3-002, 2016-I2M-1-015]
- National Natural Science Foundation of China [91639107, 31671542, 81722006, 81700337]
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Owing to the prevalence and high mortality rates of cardiac diseases, a more detailed characterization of the human heart is necessary; however, this has been largely impeded by the cellular diversity of cardiac tissue and limited access to samples. Here, we show transcriptome profiling of 21,422 single cells-including cardiomyocytes (CMs) and non-CMs (NCMs)-from normal, failed and partially recovered (left ventricular assist device treatment) adult human hearts. Comparative analysis of atrial and ventricular cells revealed pronounced inter- and intracompartmental CM heterogeneity as well as compartment-specific utilization of NCM cell types as major cell-communication hubs. Systematic analysis of cellular compositions and cell-cell interaction networks showed that CM contractility and metabolism are the most prominent aspects that are correlated with changes in heart function. We also uncovered active engagement of NCMs in regulating the behaviour of CMs, exemplified by ACKR1(+)-endothelial cells, injection of which preserved cardiac function after injury. Beyond serving as a rich resource, our study provides insights into cell-type-targeted intervention of heart diseases.
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