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描述 | B-Raf protein is a key mediator in the MAPK signaling pathway that involved in the pathogenesis of multiple cancers. An important V600E mutation has been shown to cause constitutive B-Raf activation. RAF265 is an oral molecule inhibitor of both mutant BRAFV600E and VEGFR2 with EC50 values of 0.14 μM and 0.19 μM, respectively[5]. The IC50 values of RAF265 against of BRAFV600E, wild-type BRAF, VEGFR, and C-RAF were 0.5, 70, 20 and 19μM, respectively[6]. In HT29 and MDAMB231 cells, RAF265 inhibited cell viability with IC20 values of 1-3μM and IC50 values of 5-10μM. In A549 and HCT116 cells, the IC2020 values of RAF265 were 1μM for both cell lines, but the IC50 values were more than 10μM. Additionally, treatment with RAF265 at the concentrations of 1-10μM decreased MEK phosphorylation in BRAF-mutated cell lines. In HCT116, HT29, and MDAMB231 cell lines, increasing doses of RAF265 also decreased the phosphorylation of S6 ribosomal protein. In mice inoculated with HCT116 cancer cells, the time to achieve a relative 10 times of the initial tumor volume was 25 days in the RAF265 group (12 mg/kg, once per day), compared to 20 days in the control group. The combination of RAF265 and RAD001 at a dose of 12 mg/kg/d delayed the tumor growth for 5 days [7]. |
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 |
A375 cells | Proliferation assay | Antiproliferative activity against human A375 cells harboring B-RAF V600E mutant, IC50=0.04 μM | 26396681 | ||
human Malme-3M cells | Function assay | Inhibition of B-RAF V600E mutant in human Malme-3M cells assessed as phosphorylation of ERK, IC50=0.04 μM | 26396681 | ||
SK-MEL-28 cells | Function assay | Inhibition of B-RAF V600E mutant in human SK-MEL-28 cells assessed as phosphorylation of ERK, IC50=0.14 μM | 26396681 |
实验方案 | |||
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1mg | 5mg | 10mg | |
1 mM 5 mM 10 mM |
1.93mL 0.39mL 0.19mL |
9.64mL 1.93mL 0.96mL |
19.29mL 3.86mL 1.93mL |
参考文献 |
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