Title : Epidermal growth factor receptor signaling cascade as target for tyrphostin (RG 50864) in epithelial cells. Paradoxical effects on mitogen-activated protein kinase kinase and mitogen-activated protein kinase activities.

Pub. Date : 1997 Feb 7

PMID : 9065732






10 Functional Relationships(s)
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1 Epidermal growth factor receptor signaling cascade as target for tyrphostin (RG 50864) in epithelial cells. Tyrphostins epidermal growth factor receptor Homo sapiens
2 Tyrphostins are synthetic compounds that have been described as in vitro inhibitors of epidermal growth factor receptor (EGF-R) tyrosine kinase activity. Tyrphostins epidermal growth factor receptor Homo sapiens
3 Tyrphostins are synthetic compounds that have been described as in vitro inhibitors of epidermal growth factor receptor (EGF-R) tyrosine kinase activity. Tyrphostins epidermal growth factor receptor Homo sapiens
4 However, these compounds appear to be readily incorporated, which suggests that tyrphostin acts indirectly on EGF-R. Tyrphostins epidermal growth factor receptor Homo sapiens
5 Because tyrphostin has been shown to be an inhibitor of p185erbB2 and EGF-R in vitro, this finding indicates that the tyrphostin effect on p185erbB2(V-E) and EGF-R was the result of an indirect mechanism in transfected cells. Tyrphostins epidermal growth factor receptor Homo sapiens
6 Because tyrphostin has been shown to be an inhibitor of p185erbB2 and EGF-R in vitro, this finding indicates that the tyrphostin effect on p185erbB2(V-E) and EGF-R was the result of an indirect mechanism in transfected cells. Tyrphostins epidermal growth factor receptor Homo sapiens
7 Because tyrphostin has been shown to be an inhibitor of p185erbB2 and EGF-R in vitro, this finding indicates that the tyrphostin effect on p185erbB2(V-E) and EGF-R was the result of an indirect mechanism in transfected cells. Tyrphostins epidermal growth factor receptor Homo sapiens
8 Because tyrphostin has been shown to be an inhibitor of p185erbB2 and EGF-R in vitro, this finding indicates that the tyrphostin effect on p185erbB2(V-E) and EGF-R was the result of an indirect mechanism in transfected cells. Tyrphostins epidermal growth factor receptor Homo sapiens
9 We conclude that whereas tyrphostins were designed to inhibit EGF-R tyrosine kinase activity, under our conditions EGF-R is not a physiological target for tyrphostin, nor is one of its related protein tyrosine kinases, p185erbB2(V-E). Tyrphostins epidermal growth factor receptor Homo sapiens
10 We conclude that whereas tyrphostins were designed to inhibit EGF-R tyrosine kinase activity, under our conditions EGF-R is not a physiological target for tyrphostin, nor is one of its related protein tyrosine kinases, p185erbB2(V-E). Tyrphostins epidermal growth factor receptor Homo sapiens