生物活性
Vemurafenib (PLX4032, RG7204)是一种新型有效的B-RafV600E抑制剂,IC50为31 nM。PLX4032抑制B-RAFV600E, C-RAF, 和 野生型B-RAF, IC50分别为31 nM, 48 nM, 和100 nM。PLX4032 也抑制一些非-RAF激酶,包括ACK1, KHS1,和SRMS, IC50 为18 nM 到51 nM。 PLX4032作用于黑色素瘤细胞系,抑制效果依赖于B-RAF突变状态,因为PLX4032有效抑制含B-RAFV600突变的细胞, 包括V600E, V600D, V600K, 和V600R, 但是对野生型或其他突变没有作用效果。
化学数据
分子量 | 489.92 |
分子式 | C23H18ClF2N3O3S |
CAS号 | 918504-65-1 |
纯度 | 99.34% |
溶解性(25°C) | DMSO 60 mg/mL |
储存和运输条件 | 固体粉末: -20°C 冷藏长期储存 常温运输及临时存放 |
实验操作 来自于公开的文献,仅供相同实验参考(如实验材料、目的不同,请参考其他文献)
细胞实验 |
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细胞系 | MDA-MB-435 cells line |
方法 | Cellular proliferation assays Cellular proliferation was evaluated by 3-(4,5-dimethylthiazole-2-yl)-2,5-diphenyl-2H-tetrazolium bromide (MTT; Sigma) assay. Briefly, cells were plated in 96-well microtiter plates at a density of 1,000 to 5,000 cells per well in a volume of 180 μL. For the assay, RG7204 was prepared at 10 times the final assay concentration in media containing 1% DMSO. Twenty-four hours after cell plating, 20 μL of the appropriate dilution were added to plates in duplicate. The plates were assayed for proliferation 6 days after the cells were plated according to the procedure originally described by Mosmann . The IC50 was determined from the regression of a plot of the logarithm of the concentration versus percent inhibition by XLfit (version 4.2; IDBS) using the Dose-Response One-Site Model (#205). |
浓度 | 0~10μM |
处理时间 | 6 days |
动物实验 |
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动物模型 | Colo829 and A375 xenografts |
配制 | an aqueous vehicle containing 2% Klucel LF (Hydroxypropylcellulose; Aqualon) and adjusted to pH 4 with dilute HCl. |
剂量 | 100 mg/kg bid |
给药处理 | oral gavage |
不同实验动物依据体表面积的等效剂量转换表(数据来源于FDA指南)
| 小鼠 | 大鼠 | 兔 | 豚鼠 | 仓鼠 | 狗 |
重量 (kg) | 0.02 | 0.15 | 1.8 | 0.4 | 0.08 | 10 |
体表面积 (m2) | 0.007 | 0.025 | 0.15 | 0.05 | 0.02 | 0.5 |
Km系数 | 3 | 6 | 12 | 8 | 5 | 20 |
动物 A (mg/kg) = 动物 B (mg/kg) × | 动物 B的Km系数 |
动物 A的Km系数 |
例如,依据体表面积折算法,将化合物用于小鼠的剂量20 mg/kg 换算成大鼠的剂量,需要将20 mg/kg 乘以小鼠的Km系数(3),再除以大鼠的Km系数(6),得到化合物用于大鼠的等效剂量为10 mg/kg。
储备液配制
以下数据基于产品分子量,对于特殊产品,请参照COA中的储备液配制条件和说明进行操作。
Concentration / Solvent Volume / Mass | 1 mg | 5 mg | 10 mg |
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1 mM | 2.0411 mL | 10.2057 mL | 20.4115 mL |
5 mM | 0.4082 mL | 2.0411 mL | 4.0823 mL |
10 mM | 0.2041 mL | 1.0206 mL | 2.0411 mL |