Werner, Franziska;
Prentki Santos, Estefania;
Michel, Konstanze;
Schrader, Hanna;
Völker, Katharina;
Potapenko, Tamara;
Krebes, Lisa;
... Kuhn, Michaela; + view all
(2023)
Ablation of C-type natriuretic peptide/cGMP signaling in fibroblasts exacerbates adverse cardiac remodeling in mice.
JCI Insight
10.1172/jci.insight.160416.
(In press).
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Abstract
Excessive activation of cardiac fibroblasts (CFs) in response to injury provokes cardiac fibrosis, stiffness, and failure. The local mediators counter-regulating this response remain unclear. Exogenous C-type natriuretic peptide (CNP) exerted antifibrotic effects in preclinical models. To unravel the role of the endogenous hormone, we generated mice with fibroblast-restricted deletion (KO) of guanylyl cyclase-B (GC-B), the cGMP-synthesizing CNP receptor.CNP activated GC-B/cGMP signaling in human and murine CFs, preventing proliferative and promigratory effects of AngiotensinII (AngII) and TGF-β. Fibroblast-specific GC-B-KO mice showed enhanced fibrosis in response to AngII infusions. Moreover, after two weeks of mild pressure-overload induced by transverse aortic constriction (TAC), such KO mice had augmented cardiac fibrosis and hypertrophy, together with systolic and diastolic contractile dysfunction. This was associated with increased expression of the profibrotic genes collagen I, III and periostin. Notably, such responses to AngII and TAC were greater in female as compared to male KO mice. Enhanced AngII-induced CNP expression in female hearts and augmented GC-B expression and activity in female CFs may contribute to this sex disparity.The results show that paracrine CNP signaling in CFs has antifibrotic and antihypertrophic effects. The CNP/GC-B/cGMP pathway might be a target for therapies combating pathological cardiac remodeling.
| Type: | Article |
|---|---|
| Title: | Ablation of C-type natriuretic peptide/cGMP signaling in fibroblasts exacerbates adverse cardiac remodeling in mice |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1172/jci.insight.160416 |
| Publisher version: | https://doi.org/10.1172/jci.insight.160416 |
| Language: | English |
| Additional information: | © 2023, Werner et al. This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit (http://creativecommons.org/licenses/by/4.0/). |
| Keywords: | Cardiology, Cyclic nucleotides, Fibrosis, Peptides |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Medicine UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Medicine > Inflammation |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10171047 |
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