Pathologic gene network rewiring implicates PPP1R3A as a central regulator in pressure overload heart failure.

ABSTRACT: Heart failure is a leading cause of mortality, yet our understanding of the genetic interactions underlying this disease remains incomplete. Here, we harvest 1352 healthy and failing human hearts directly from transplant center operating rooms, and obtain genome-wide genotyping and gene expression measurements for a subset of 313. We build failing and non-failing cardiac regulatory gene networks, revealing important regulators and cardiac expression quantitative trait loci (eQTLs). PPP1R3A emerges as a regulator whose network connectivity changes significantly between health and disease. RNA sequencing after PPP1R3A knockdown validates network-based predictions, and highlights metabolic pathway regulation associated with increased cardiomyocyte size and perturbed respiratory metabolism. Mi

SUBMITTER: Cordero P 

PROVIDER: S-EPMC6591478 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature