FGF21-FGFR4 signaling in cardiac myocytes promotes concentric cardiac hypertrophy in mouse models of diabetes.

Journal Article (Journal Article)

Fibroblast growth factor (FGF) 21, a hormone that increases insulin sensitivity, has shown promise as a therapeutic agent to improve metabolic dysregulation. Here we report that FGF21 directly targets cardiac myocytes by binding β-klotho and FGF receptor (FGFR) 4. In combination with high glucose, FGF21 induces cardiac myocyte growth in width mediated by extracellular signal-regulated kinase 1/2 (ERK1/2) signaling. While short-term FGF21 elevation can be cardio-protective, we find that in type 2 diabetes (T2D) in mice, where serum FGF21 levels are elevated, FGFR4 activation induces concentric cardiac hypertrophy. As T2D patients are at risk for heart failure with preserved ejection fraction (HFpEF), we propose that induction of concentric hypertrophy by elevated FGF21-FGFR4 signaling may constitute a novel mechanism promoting T2D-associated HFpEF such that FGFR4 blockade might serve as a cardio-protective therapy in T2D. In addition, potential adverse cardiac effects of FGF21 mimetics currently in clinical trials should be investigated.

Full Text

Duke Authors

Cited Authors

  • Yanucil, C; Kentrup, D; Li, X; Grabner, A; Schramm, K; Martinez, EC; Li, J; Campos, I; Czaya, B; Heitman, K; Westbrook, D; Wende, AR; Sloan, A; Roche, JM; Fornoni, A; Kapiloff, MS; Faul, C

Published Date

  • May 5, 2022

Published In

Volume / Issue

  • 12 / 1

Start / End Page

  • 7326 -

PubMed ID

  • 35513431

Pubmed Central ID

  • PMC9072546

Electronic International Standard Serial Number (EISSN)

  • 2045-2322

Digital Object Identifier (DOI)

  • 10.1038/s41598-022-11033-x


  • eng

Conference Location

  • England