Genome-wide association analysis provides insights into the molecular etiology of dilated cardiomyopathy

Sean L. Zheng, Albert Henry, Douglas Cannie, Michael Lee, David Miller, Kathryn A. McGurk, Isabelle Bond, Xiao Xu, Hanane Issa, Catherine Francis, Antonio De Marvao, Pantazis I. Theotokis, Rachel J. Buchan, Doug Speed, Erik Abner, Lance Adams, Krishna G. Aragam, Johan Ärnlöv, Anna Axelsson Raja, Joshua D. BackmanJohn Baksi, Paul J.R. Barton, Kiran J. Biddinger, Eric Boersma, Jeffrey Brandimarto, Søren Brunak, Henning Bundgaard, David J. Carey, Philippe Charron, James P. Cook, Stuart A. Cook, Spiros Denaxas, Jean François Deleuze, Alexander S. Doney, Perry Elliott, Christian Erikstrup, Tõnu Esko, Eric H. Farber-Eger, Chris Finan, Sophie Garnier, Jonas Ghouse, Vilmantas Giedraitis, Daniel F. Guðbjartsson, Christopher M. Haggerty, Brian P. Halliday, Lars Lind, Sisse R. Ostrowski, Ole B.V. Pedersen, Henrik Ullum, Ole B.V. Pedersen, COVIDsortium, DBDS Genomic Consortium, Estonian Biobank Research Team, HERMES Consortium

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Abstract

Dilated cardiomyopathy (DCM) is a leading cause of heart failure and cardiac transplantation. We report a genome-wide association study and multi-trait analysis of DCM (14,256 cases) and three left ventricular traits (36,203 UK Biobank participants). We identified 80 genomic risk loci and prioritized 62 putative effector genes, including several with rare variant DCM associations (MAP3K7, NEDD4L and SSPN). Using single-nucleus transcriptomics, we identify cellular states, biological pathways, and intracellular communications that drive pathogenesis. We demonstrate that polygenic scores predict DCM in the general population and modify penetrance in carriers of rare DCM variants. Our findings may inform the design of genetic testing strategies that incorporate polygenic background. They also provide insights into the molecular etiology of DCM that may facilitate the development of targeted therapeutics.

Original languageEnglish
JournalNature Genetics
Number of pages32
ISSN1061-4036
DOIs
Publication statusAccepted/In press - 2024

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