生物活性 | |||
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描述 | VEGFR (vascular endothelial growth factor) and PDGFR (platelet-derived growth factor receptor) are critical roles in tumor growth and suvival via autocrine and paracrine loops, making them the well validated targets for the treatment of cancers. Sunitinib is a multiple RTKs inhibitor with IC50 values of 2nM and 80nM for VEGFR2 and PDGFRβ (measured by kinase activity)[1], respectively, also shows inhibition against KIT and FLT3 receptor[2]. The cellular kinase activity induced by VEGF/PDGF can be inhibited by Sunitinib with IC50 value of 5-50nM/10nM in 3T3 cells, while the PDGF-induced cell growth can be inhibited by Sunitinib with IC50 of 8nM[1]. Daily oral administration of Sunitinib at dose of 80mg/kg reduced growth of established SF763T tumor xenografts in athymic mice, as well as suppressed Colo205 tumor growth. Consistent with the cellular kinase study, the inhibition by Sunitinib against p-PDGFRβ can be observed in tumor after a single dose at 80mg/kg in mice bearing SF767T tumors and mice bearing Colo205 tumors, as well as suppressed p-FLK1 in A375 xenograft mice dosed 40mg/kg Sunitinib[2]. | ||
作用机制 | Sunitinib is an ATP-competitive multitargeted tyrosine kinase inhibitor.[3] |
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 |
3T3 cells | Function assay | Inhibition of PDGF-induced BrdU incorporation in 3T3 cells with 0.1% bovine serum albumin, IC50=7 nM | 12646019 | ||
3T3 cells | Function assay | Inhibition of Vascular endothelial growth factor receptor in 3T3 cells, IC50=50 nM | 12646019 | ||
HEK293 cells | Function assay | Binding affinity to FLT3 catalytic domain expressed in HEK293 cells by competitive binding assay, Kd=0.47 nM | 19754199 |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
2.51mL 0.50mL 0.25mL |
12.55mL 2.51mL 1.25mL |
25.10mL 5.02mL 2.51mL |
参考文献 |
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