PD 158780 is a potent tyrosine kinase inhibitor of the epidermal growth factor receptor and has been shown to delay substantial growth of tumors in vivo tumor models.
일반 설명
A potent inhibitor of the EGFR tyrosine kinase activity (8 pM). Also inhibits heregulin-stimulated autophosphorylation in SK-BR-3 (IC50 =49 nM) and MDA-MB-453 (IC50 = 52 nM) breast carcinomas. The inhibition is competitive and results from binding of the inhibitor at the ATP site of the enzymes. Inhibits the LPA-stimulated MAP kinase kinase 1/2 (MKK1/2) activation and EGFR tyrosine phosphorylation in HeLa and NIH3T3 cells.
생물학적 활성
Potent inhibitor of ErbB receptor family tyrosine kinases (IC 50 values are 0.008, 49 and 52 nM for EGFR, ErbB2 and ErbB2/ErbB4 respectively) that does not inhibit FGF or PDGF-mediated tyrosine phosphorylation. Induces G 1 cell cycle arrest in MCF10A cells and is antiproliferative in A431 human epidermal carcinoma cells.
