| Description |
A cell-permeable, orally bioavailable, ATP-competitive, broad-spectrum tyrosine kinase inhibitor (IC 50 against against c-Src, Wee1, FGFR-1, Myt1, EGFR, and PDGFRβ = 8.4, 24, 39.3, 72, 87.5 and 98.3 nM, respectively) that suppresses angiogenesis both in vitro (max inhibition dose at 100 nM in HUVEC microcapillary formation assays) and in vivo (max inhibition achieved via 5 mg/kg p.o. in murine Matrigel plug angiogenesis assays), while exhibiting much reduced potency against Chk1, MAPK, and PKC (IC 50 = 3.4, 5, and 22.7 µM, respectively) and little activity toward IRTK and Cdk4/D1 even at concentrations as high as 50 µM. Shown to effectively block PDGF-, EGF-, and bFGF-stimulated receptor phosphorylations (IC 50 = 6.5, 1600, and 97.3 nM, respectively) and other cellular responses in rat aortic smooth muscle cells
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