生物活性 | |||
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靶点 |
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描述 | FAK (Focal adhesion kinase), a non-receptor tyrosine kinase, can regulate the cytoskeleton and act as a scaffolding and signaling protein for other adhesion molecules. The expression of FAK and its phosphorylation status show a strong correlation with the invasive phenotype of aggressive human tumors. PF-562271 is a potent and selective inhibitor for FAK and Pyk2 with IC50 values of 1.5nM and 14nM (measured by recombinant kinase assay), respectively, displaying over 100-fold selectivity against the other kinases tested[1]. PF-562271 showed robust inhibition on p-FAK with IC50 of 5nM in an inducible cell-based assay. Oral administration of PF-562271 can inhibit p-FAK in a dose-dependent fashion with calculated EC50 of 93ng/ml in the tumor-bearing mice, which suggesting the pharmacodynamics of this compound. In vitro study showed that PF-562271 had antitumor efficacy or caused tumor regression in multiple human s.c. xenograft models, including BxPC3, LoVo, U87MG, H125, PC3M and BT474, with dose ranging in 25-100mg/kg according to different models[1]. | ||
作用机制 | PF-562271 can bind in the ATP-binding cleft of FAK and form two of the three H-bonds between PF-562271 and main-chain atoms in the kinase hinge region.[1] |
细胞研究 | |||||
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细胞系 | 浓度 | 检测类型 | 检测时间 | 活动说明 | 数据源 |
KG-1 | Growth Inhibition Assay | IC50=5.74005 μM | SANGER | ||
KINGS-1 | Growth Inhibition Assay | IC50=12.3421 μM | SANGER | ||
KLE | Growth Inhibition Assay | IC50=28.9906 μM | SANGER |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
1.97mL 0.39mL 0.20mL |
9.85mL 1.97mL 0.99mL |
19.70mL 3.94mL 1.97mL |