期刊
CELL DEATH AND DIFFERENTIATION
卷 15, 期 3, 页码 427-434出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.cdd.4402229
关键词
c-MET; tyrosine kinase receptor; hepatocyte growth factor/scatter factor; apoptosis; survival; caspase
The MET tyrosine kinase receptor is a high-affinity receptor for hepatocyte growth factor/scatter factor (HGF/SF). HGF/SF-MET system is necessary for embryonic development, and aberrant MET signalling favours tumorigenesis and metastasis. MET is a prototype of tyrosine kinase receptor, which is able to counteract apoptosis through the initiation of a survival signal involving notably the PI3K-Akt pathway. Paradoxically, the MET receptor is also able to promote apoptosis when activated by HGF/SF or independently of ligand stimulation. The molecular mechanisms underlying this uncommon response have been recently investigated and revealed dual antiapoptotic or proapoptotic property of MET according to the cell type or stress conditions. Although the involvement of MET in the regulation of integrated biological responses mostly took into account its efficient antiapoptotic function, its proapoptotic responses could also be important for regulation of the survival/apoptosis balance and play a role during the development or tumour progression.
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