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| Item Type: | Article |
|---|---|
| Title: | WWP2 regulates pathological cardiac fibrosis by modulating SMAD2 signaling |
| Creators Name: | Chen, H., Moreno-Moral, A., Pesce, F., Devapragash, N., Mancini, M., Heng, E.L., Rotival, M., Srivastava, P.K., Harmston, N., Shkura, K., Rackham, O.J.L., Yu, W.P., Sun, X.M., Tee, N.G.Z., Tan, E.L.S., Barton, P.J.R., Felkin, L.E., Lara-Pezzi, E., Angelini, G., Beltrami, C., Pravenec, M., Schafer, A., Bottolo, L., Hubner, N., Emanueli, C., Cook, S.A. and Petretto, E. |
| 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. |
| Keywords: | Cardiomyopathies, Extracellular Matrix Proteins, Fibrosis, Gene Expression Regulation, Gene Regulatory Networks, Genetic Predisposition to Disease, Heart Diseases, Protein Isoforms, Smad2 Protein, Transforming Growth Factor beta, Transgenic Mice, Ubiquitin-Protein Ligases, Animals, Mice |
| Source: | Nature Communications |
| ISSN: | 2041-1723 |
| Publisher: | Nature Publishing Group |
| Volume: | 10 |
| Number: | 1 |
| Page Range: | 3616 |
| Date: | 9 August 2019 |
| Additional Information: | Erratum in: Nat Commun 10(1): 4085. |
| Official Publication: | https://doi.org/10.1038/s41467-019-11551-9 |
| PubMed: | View item in PubMed |
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