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PF-562271

CAS No. : 717907-75-0

MCE 国际站：PF-562271

产品活性：PF-562271 (VS-6062) 是一种有效，可逆，ATP 竞争性的 FAK 和 Pyk2 激酶抑制剂，IC₅₀ 分别为 1.5 nM 和 13 nM。

研究领域：Protein Tyrosine Kinase/RTK

作用靶点：FAK  |  Pyk2

In Vitro: PF-562271 (VS-6062) is shown to be a 30- to 120-nM inhibitor of CDK2/E, CDK5/p35, CDK1/B, and CDK3/E in recombinant enzyme assays, in cell-based assays evaluating the role of CDKs, a 48-hour exposure of 3.3 μM PF-562271 is required to alter cell cycle progression. PF-562271 is potent in an inducible cell-based assay measuring phospho-FAK with a IC₅₀ of 5 nM.
PF-562271, a selective inhibitor of both FAK and proline-rich tyrosine kinase 2 (PYK2), a FAK-related family member, on cell growth and colony formation in Ewing sarcoma cell lines. Seven cell lines are treated for 5 days with PF-562271 across a range of concentrations using 2-fold serial dilutions. Treatment with PF-562271 impaires cell viability in all cell lines, with an average IC₅₀ of 2.4 μM after 3 days of treatment. TC32 and A673 are the 2 most sensitive cell lines, with IC₅₀ concentrations of 2.1 and 1.7 μM, respectively.

In Vivo: PF-562271 inhibits FAK phosphorylation in vivo in a dose-dependent fashion (calculated EC₅₀ of 93 ng/mL, total) after p.o. administration to tumor-bearing mice. Rats that receive PF-562271 demonstrate a decrease in tumor growth after 2 weeks of treatment with signs of bone healing as evidenced by the deposition of new bone (cortical and cancellous) at sites previously damaged by the tumor.

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