生物活性
Pimasertib (AS-703026)作用于MM细胞系,是一种高度选择性的,有效的,ATP非竞争性的,MEK1/2变构抑制剂,IC50为0.005-2 μM。AS703026是新型选择性,口服生物有效性的MEK1/2抑制剂,结合到特定MEK变构位点,具有强激酶选择性。AS703026抑制人类多发性骨髓瘤细胞(包括U266和INA-6细胞)生长和存活,IC50分别为5和11 nM。细胞周期停在G0-G1期可调节AS703026的抑制效果,且伴随着MAF致癌基因表达的降低。
化学数据
分子量 | 431.20 |
分子式 | C15H15FIN3O3 |
CAS号 | 1236699-92-5 |
纯度 | >99% |
溶解性(25°C) | DMSO 50 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 | MM cell lines |
方法 | Cytotoxicity assays. The inhibitory effects of study compounds on MM cell growth and survival were assessed by both [3H]thymidine incorporation and by measuring 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrasodium bromide (MTT; Sigma-Aldrich, St Louis, MO) dye absorbance following the manufacturer's instruction. Cells (104/well for MM cell line, in triplicates and 2-5×105/well for patient MM cells) were cultured in 96-well plates for 3 days (MM cell lines) or 5-days (patient MM cells). For the [3H]thymidine incorporation assay, cells were pulsed with 0.5 μCi (0.0185 MBq)/well [3H]thymidine (Amersham, Pittsburgh, PA) for 6 h (cell lines), harvested onto glass fiber filters, and counted in a β-scintillation counter. Due to low DNA synthesis of patient MM cells, they were pulsed with 2 μCi/well [3H]thymidine and measured during the last 36 h of culture. |
浓度 | 0, 2, 20, 200, 2000, 20000 nM |
处理时间 | 3 days |
动物实验 |
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动物模型 | H929 cells human plasmacytoma xenograft model |
配制 | suspended in 0.5% carboxymethylcellulose (CMC)/0.25%Tween20 at 10 mg/ml |
剂量 | 15 or 30 mg/kg twice daily |
给药处理 | orally |
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 | 2.3191 mL | 11.5955 mL | 23.1911 mL |
5 mM | 0.4638 mL | 2.3191 mL | 4.6382 mL |
10 mM | 0.2319 mL | 1.1596 mL | 2.3191 mL |