TGF-β signaling in fibrosis

被引:1048
作者
Biernacka, Anna [1 ]
Dobaczewski, Marcin [1 ]
Frangogiannis, Nikolaos G. [1 ]
机构
[1] Albert Einstein Coll Med, Div Cardiol, Bronx, NY 10461 USA
关键词
TGF-beta; fibrosis; collagen; Smad; MAPK; GROWTH-FACTOR-BETA; MESENCHYMAL TRANSITION; EXTRACELLULAR-MATRIX; CARDIAC FIBROSIS; TRANSFORMING GROWTH-FACTOR-BETA-1; PULMONARY-FIBROSIS; LUNG FIBROSIS; ACTIVATION; FIBROBLASTS; KINASE;
D O I
10.3109/08977194.2011.595714
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
Transforming growth factor beta (TGF-beta) is a central mediator of fibrogenesis. TGF-beta is upregulated and activated in fibrotic diseases and modulates fibroblast phenotype and function, inducing myofibroblast transdifferentiation while promoting matrix preservation. Studies in a wide range of experimental models have demonstrated the involvement of the canonical activin receptor-like kinase 5/Smad3 pathway in fibrosis. Smad-independent pathways may regulate Smad activation and, under certain conditions, may directly transduce fibrogenic signals. The profibrotic actions of TGF-beta are mediated, at least in part, through induction of its downstream effector, connective tissue growth factor. In light of its essential role in the pathogenesis of fibrosis, TGF-beta has emerged as an attractive therapeutic target. However, the pleiotropic and multifunctional effects of TGF-beta and its role in tissue homeostasis, immunity and cell proliferation raise concerns regarding potential side effects that may be caused by TGF-beta blockade. This minireview summarizes the role of TGF-beta signaling pathways in the fibrotic response.
引用
收藏
页码:196 / 202
页数:7
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