Article
JNK/SAPK activation by platelet-derived growth factor in A431 cells requires both the phospholipase C-gamma and the phosphatidylinositol 3-kinase signaling pathways of the receptor.
Biochemical and biophysical research communications - 11 Aug 1999
Assefa Z, Valius M, Vántus T, Agostinis P, Merlevede W, Vandenheede J R
Abstract excerpt
Wild-type or mutant betaPDGF receptors were introduced into A431 cells that lack endogenous PDGF receptors. PDGF stimulates JNK1 activity in a dose- and time-dependent manner in cells expressing the wild-type receptor. A receptor mutant lacking all the binding sites for SHP-2, GAP, PI3K, and PLC-gamma fails to activate JNK1. Receptor mutants with no binding site for either SHP-2 or GAP can fully activate JNK1 but...
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