生物活性
Masitinib (AB1010)是一种新型的Kit和PDGFRα/β抑制剂，IC50分别为200 nM和540 nM/800 nM，但对ABL和c-Fms抑制作用较弱。Phase 2/3。Masitinib浓度≤500 nM时为ATP竞争性抑制剂。Masitinib也有效抑制重组PDGFR和胞内激酶Lyn, 及FGFR 3。 然而, Masitinib 对ABL和c-Fms抑制效果很弱。
化学数据
| 分子量 | 498.64 |
| 分子式 | C28H30N6OS |
| CAS号 | 790299-79-5 |
| 纯度 | 99.87% |
| 溶解性（25°C） | DMSO ≥100 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 |
|---|
| 细胞系 | Ba/F3 cell |
| 方法 | For the assay of Ba/F3 cell proliferation, microtitre plates were seeded with a total of 104 cells/well in 100 μl of RPMI 1640 medium with 10% foetal bovine serum at 37°C. These were supplemented, or not, with either 0.1% conditioned medium from X63-IL-3 cells or 250 ng/ml murine SCF. The murine SCF, which activates KIT, was purified from the conditioned medium of SCF-producing CHO cells (gift of S. Lyman, Immunex). Cells were grown for 48 hours at 37°C and then incubated with 10 μl/well of WST-1 reagent (Roche Applied Science, France) for 3 hours at 37°C. The amount of formazan dye formed was quantified by its absorbance at 450 nm using a scanning multiwell spectrophotometer (MultiSkan MS, Thermo-LabSystems, France). A blank well without cells was used as a background control for the spectrophotometer and all assays were performed in triplicate. |
| 浓度 | 0~10 μM |
| 处理时间 | 48 h |
| 动物实验 |
|---|
| 动物模型 | Ba/F3 Δ27 tumour model in Female MBRI Nu/Nu mice |
| 配制 | placebo |
| 剂量 | 10, 30, or 45 mg/kg twice daily for 10 days |
| 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 |
|---|
| 1 mM | 2.0055 mL | 10.0273 mL | 20.0545 mL |
| 5 mM | 0.4011 mL | 2.0055 mL | 4.0109 mL |
| 10 mM | 0.2005 mL | 1.0027 mL | 2.0055 mL |
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