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Cellular function of p70S6K: a role in regulating cell motility Berven LA; Crouch MFImmunol Cell Biol 2000[Aug]; 78 (4): 447-51The 70 kDa ribosomal S6 kinase (p70S6K) is activated by numerous mitogens, growth factors and hormones. Activation of p70S6K occurs through phosphorylation at a number of sites and the primary target of the activated kinase is the 40S ribosomal protein S6, a major component of the machinery involved in protein synthesis in mammalian cells. In addition to its involvement in regulating translation, p70S6K activation has been implicated in cell cycle control and neuronal cell differentiation. Recent data obtained in this laboratory suggests that p70S6K may also function in regulating cell motility, a cellular response that is important in tumour metastases, the immune response and tissue repair. The present paper reviews the regulation and cellular function of p70S6K and proposes a novel function of p70S6K in regulating cell motility.|*Cell Movement[MESH]|3T3 Cells[MESH]|Animals[MESH]|Cell Cycle/physiology[MESH]|Cytoskeleton/metabolism[MESH]|Mice[MESH]|Ribosomal Protein S6 Kinases/*physiology[MESH]|Ribosomal Proteins/biosynthesis[MESH]|Signal Transduction[MESH] |
