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Abstract Through the action of its membrane-bound type I receptors, transforming growth factor-beta (TGF-beta) elicits a wide range of cellular responses that regulate cell proliferation, differentiation and apoptosis. Many of the signaling responses induced by TGF-beta are mediated by Smad proteins, but certain evidence has suggested that TGF-beta can also signal independently of Smads. We found in mouse mammary epithelial (NMuMG) cells, which respond to TGF-beta treatment in multiple ways, that TGF-beta-induced activation of p38 MAP kinase is required for TGF-beta-induced apoptosis, epithelial-to-mesenchymal transition (EMT), but not growth arrest. We further demonstrated that activation of p38 is independent of Smads using a mutant type I receptor, which is incapable of activating Smad......
来源出处
Yu L, Hebert MC, Zhang YE. TGF-beta receptor-activated p38 MAP kinase mediates …
http://218.241.158.84:8088/Research/Articles/index333.shtml
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