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WWP2 regulates pathological cardiac fibrosis by modulating SMAD2 signaling.

Chen, Huimei, Moreno-Moral, Aida, Pesce, Francesco, Devapragash, Nithya, Mancini, Massimiliano, Heng, Ee Ling, Rotival, Maxime, Srivastava, Prashant K., Harmston, Nathan, Shkura, Kirill, Rackham, Owen J.L., Yu, Wei-Ping, Sun, Xi-Ming, Tee, Nicole Gui Zhen, Tan, Elisabeth Li Sa, Barton, Paul J.R., Felkin, Leanne E., Lara-Pezzi, Enrique, Angelini, Gianni, Beltrami, Cristina, Pravenec, Michael, Schafer, Sebastian, Bottolo, Leonardo, Hubner, Norbert, Emanueli, Constanza, Cook, Stuart A. and Petretto, Enrico 2019. WWP2 regulates pathological cardiac fibrosis by modulating SMAD2 signaling. Nature Communications 10 , 3616. 10.1038/s41467-019-11551-9

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Abstract

Cardiac fibrosis is a final common pathology in inherited and acquired heart diseases that causes cardiac electrical and pump failure. Here, we use systems genetics to identify a pro-fibrotic gene network in the diseased heart and show that this network is regulated by the E3 ubiquitin ligase WWP2, specifically by the WWP2-N terminal isoform. Importantly, the WWP2-regulated pro-fibrotic gene network is conserved across different cardiac diseases characterized by fibrosis: human and murine dilated cardiomyopathy and repaired tetralogy of Fallot. Transgenic mice lacking the N-terminal region of the WWP2 protein show improved cardiac function and reduced myocardial fibrosis in response to pressure overload or myocardial infarction. In primary cardiac fibroblasts, WWP2 positively regulates the expression of pro-fibrotic markers and extracellular matrix genes. TGFβ1 stimulation promotes nuclear translocation of the WWP2 isoforms containing the N-terminal region and their interaction with SMAD2. WWP2 mediates the TGFβ1-induced nucleocytoplasmic shuttling and transcriptional activity of SMAD2.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Publisher: Nature Research
ISSN: 2041-1723
Date of Acceptance: 19 July 2019
Last Modified: 24 Aug 2023 11:45
URI: https://orca.cardiff.ac.uk/id/eprint/161888

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