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IL11 is a crucial determinant of cardiovascular fibrosis.

Item Type:Article
Title:IL11 is a crucial determinant of cardiovascular fibrosis.
Creators Name:Schafer, S. and Viswanathan, S. and Widjaja, A.A. and Lim, W.W. and Moreno-Moral, A. and DeLaughter, D.M. and Ng, B. and Patone, G. and Chow, K. and Khin, E. and Tan, J. and Chothani, S.P. and Ye, L. and Rackham, O.J. and Ko, N.S. and Sahib, N.E. and Pua, C.J. and Zhen, N.T. and Xie, C. and Wang, M. and Maatz, H. and Lim, S. and Saar, K. and Blachut, S. and Petretto, E. and Schmidt, S. and Putoczki, T. and Guimaraes-Camboa, N. and Wakimoto, H. and van Heesch, S. and Sigmundsson, K. and Lim, S.L. and Soon, J.L. and Chao, V.T. and Chua, Y.L. and Tan, T.E. and Evans, S.M. and Loh, Y.J. and Jamal, M.H. and Ong, K.K. and Chua, K.C. and Ong, B.H. and Chakaramakkil, M.J. and Seidman, J.G. and Seidman, C.E. and Hubner, N. and Sin, K.Y. and Cook, S.A.
Abstract:Fibrosis is a final common pathology in cardiovascular disease(1). In the heart, fibrosis causes mechanical and electrical dysfunction(1,2) and in the kidney, it predicts the onset of renal failure(3). Transforming growth factor β1 (TGFB1) is the principal pro-fibrotic factor(4,5) but its inhibition is associated with side effects due to its pleiotropic roles(6,7). We hypothesised that downstream effectors of TGFB1 in fibroblasts could be attractive therapeutic targets and lack upstream toxicities. Using integrated imaging-genomics analyses of primary human fibroblasts, we found that Interleukin 11 (IL11) upregulation is the dominant transcriptional response to TGFB1 exposure and required for its profibrotic effect. IL11 and its receptor (IL11RA) are expressed specifically in fibroblasts where they drive non-canonical, ERK-dependent autocrine signalling that is required for fibrogenic protein synthesis. In mice, fibroblast-specific Il11 transgene expression or Il11 injection causes heart and kidney fibrosis and organ failure whereas genetic deletion of Il11ra1 is protective against disease. Thus, inhibition of IL11 prevents fibroblast activation across organs and species in response to a range of important pro-fibrotic stimuli. These data reveal a central role of IL11 in fibrosis and we propose inhibition of IL11 as a new therapeutic strategy to treat fibrotic diseases.
Source:Nature
ISSN:0028-0836
Publisher:Nature Publishing Group (U.K.)
Volume:552
Number:7683
Page Range:110-115
Date:7 December 2017
Official Publication:https://doi.org/10.1038/nature24676
PubMed:View item in PubMed

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