PHA-665752 hydrate

Описание

The c-Met receptor tyrosine kinase and its ligand, hepatocyte growth factor, have been implicated in the development and progression of several human cancers. PHA-665752 is an ATP-competitive, active-site inhibitor of the catalytic activity of c-Met kinase (K_i = 4 nM; IC₅₀ = 9 nM). It exhibits >50-fold selectivity for c-Met over a panel of tyrosine and serine/threonine kinases. PHA-665752 can inhibit c-Met phosphorylation, as well as cell proliferation and cell motility, of various tumor cells (IC₅₀s = 18-50 nM). It also inhibits signal transduction downstream of c-Met, interfering with the activation of Gab-1 adaptor protein, ERK1/2, Akt, STAT3, PLC-γ, and focal adhesion kinase in multiple tumor cell lines. In a gastric carcinoma xenograft model, 25 mg/kg PHA-665752 was shown to reduce tumor growth in mice by inhibiting c-Met activation.

Химические свойства

Yellow powder crystal

Использование

PHA-665752 ia a c-Met kinase inhibitor. PHA-665752 is ATP-competitive, an active-site inhibitor with greater than 50-fold selectivity for c-Met vs a panel of tyrosine and serine-threonine kinases.

Определение

ChEBI: A member of the class of indolones that is 1,3-dihydro-2H-indol-2-one which is substituted by a (2,6-dichlorobenzyl)sulfonyl group at position 5 and by a (1H-pyrrol-2-yl)methylidene group at position 2, the pyrrole rin of which is substituted by methyl groups at positions 3 and 5, and by a [2-(pyrrolidin-1-ylmethyl)pyrrolidin-1-yl]carbonyl group at position 4 (the Z,R isomer).

Биологическая активность

Potent, selective and ATP-competitive inhibitor of MET kinase (IC 50 values are 9, 68, 200, 1400, 3000, 3800 and 6000 nM for MET, Ron, Flk-1, c-abl, FGFR1, EGFR and c-src respectively and > 10000 nM for IGF-IR, PDGFR, AURORA2, PKA, PKB α , p38 α , MK2 and MK3). Antitumor agent; inhibits tumorigenicity and angiogenesis in mouse lung cancer xenografts.