作者: Fang Liu
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摘要: TGF-β potently inhibits cell proliferation by causing cycle arrest at the G1 phase. It exerts antiproliferative response through inhibition of CDK activities. Smads play key roles in mediating growth-inhibitory response. downregulate expression protooncogene product c-Myc and inhibitor differentiation Id (Id1, Id2, Id3) upregulate inhibitors p15 p21. The mechanisms for TGF-β/Smad vary considerably from one type to another. intensity cytostatic effect is dependent on a combinatorial nature. crucial guardian tissue homeostasis. Accordingly, are tumor suppressors during early stages tumorigenesis. Understanding program important better preventing treating cancers