Role of the SHP-2 tyrosine phosphatase in cytokine-induced signaling and cellular response.
摘要：
Cytokines and growth factors are important extracellular regulatory proteins. They exert their biological functions through binding to their cognate receptors on the cell surface and triggering intracellular signaling cascades. However, the intracellular signaling mechanisms of cytokines and growth factors are not well understood. Accumulating evidence has shown that protein phosphorylation and dephosphorylation carried out by protein kinases and protein phosphatases are fundamental biochemical events in intracellular signal transduction. SHP-2, a Src homology (SH) 2 domain-containing protein tyrosine phosphatase (PTP), is widely involved in a variety of signaling pathways triggered by cytokines and growth factors, including the MAP kinase, Jak-Stat, and PI3 kinase pathways. Recent studies have clearly demonstrated that this phosphatase plays an important role in transducing signals relayed from the cell surface to the nucleus, and is a critical intracellular regulator in cytokine and growth factor-induced cell survival, proliferation, and differentiation.[Copyright &y& Elsevier]
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年份：
2002
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