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Brivanib

CAS No. : 649735-46-6

MCE 站：Brivanib

产品活性：Brivanib (BMS-540215) 是一种 ATP 竞争性的 VEGFR2 抑制剂，IC₅₀ 值为 25 nM；可以适度抑制 VEGFR-1 和 FGFR-1，对 VEGFR2 的选择性是对 PDGFR-β 的 240 倍。

研究领域：Protein Tyrosine Kinase/RTK  |  Autophagy

作用靶点：VEGFR  |  Autophagy

In Vitro: Brivanib inhibits VEGFR1 and FGFR-1 with IC₅₀ of 0.38 μM and 0.148 μM. Brivanib is not sensitive to PDGFRβ, EGFR, LCK, PKCα or JAK-3 with IC₅₀ all above 1900 nM. Brivanib could inhibit the proliferation of VEGF-stimulated HUVECs with IC₅₀ of 40 nM, compared to 276 nM in FGF-stimulated HUVECs. On the other hand, brivanib exhibits low activity to tumor cell lines. Brivanib doses ≤20 ?M paradoxically enhances FGF-induced LX-2 cell proliferation, whereas higher brivanib doses (≥30 ?M) inhibits LX-2 cell proliferation. The inhibitory effect of brivanib on liver fibrosis is not through inhibition of TGF-β1-induced stellate cell activation, and is possibly through inhibition of PDGF-BB-induced stellate cell activation.

In Vivo: Brivanib displays antitumor activities in H3396 xenograft in athymic mice. At a dose of 60 and 90 mg/kg (p.o.), brivanib completely inhibits the tumor growth, with TGI of 85% and 97%, respectively.?Moreover, brivanib significantly suppresses tumor growth in Hepatocellular carcinoma (HCC) xenografts, which due to the decrease in phosphorylation of VEGFR2. The results show that the tumor weights in 06-0606 xenograft mice are 55% and 13%, compared with the controls at a dose of 50 mg/kg and 100 mg/kg. Brivanib is suggested to be efficient in treatment of HCC.?Brivanib (50 mg/kg, p.o.) attenuates liver fibrosis and stellate cell activation induced by BDL in mice. Brivanib inhibits growth factor and growth factor receptor mRNA expression in sham control animals but shows variable effects in bile duct ligated animals.

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