AZD2932

AZD2932 是一种有效的多靶点蛋白酪氨酸激酶抑制剂，对VEGFR-2，PDGFRβ，Flt-3，和 c-Kit 的 IC50 分别为 8 nM，4 nM，7 nM，和 9 nM。 AZD2932 effectively inhibits the activities of VEGFR-2 (IC50, 8 nM), PDGFRβ (IC50,4 nM), Flt-3 (IC50, 7 nM), and c-Kit (IC50, 9 nM). AZD2932 inhibits both PDGFRα and PDGFRβ phosphorylation with a correlation close to 1:1. AZD2932 does not inhibit the various cytochrome P450 isoforms with the worst IC50 being against 2C9 (8.0 μM). AZD2932 has no activity against hERG (IC50, 137 μM). In C6 rat glial tumor model, AZD2932 (p.o., b.i.d.) results in significant TGI of 64% for both 50 and 12.5 mg/kg doses. Growth of Calu-6 tumor is inhibited by 81% and 72% at 50 and 12.5 mg/kg b.i.d. (p.o.) and LoVo tumors by 67% at 50 mg/kg b.i.d (p.o.). AZD2932 (3–50 mg/kg, p.o.) causes 60–80% inhibition of both p-VEGFR-2 and p-PDGFRβ. Single bolus oral doses of AZD2932 results in dose-related inhibition of PDGFRa phosphorylation 6 h after dosing.