生物活性
Dovitinib (TKI-258, CHIR-258)是一种多靶点的RTK抑制剂，对III型(FLT3/c-Kit)作用最强，IC50为1 nM/2 nM，同时也作用于IV类(FGFR1/3)和V类(VEGFR1-4) RTKs，IC50为8-13 nM，但对InsR， EGFR， c-Met， EphA2， Tie2， IGF-1R和HER2作用较弱。Dovitinib有效抑制FGFR1/3和VEFFR1-2，IC50为8-13 nM。Dovitinib对InsR, EGFR, c-Met, EphrinA2, Tie2, IGFR1,和HER2抑制效果不大。Dovitinib作用于FGF刺激的野生型B9细胞和F384L突变型B9细胞的生长显示出强细胞毒性，IC50为25 nM。
化学数据
| 分子量 | 392.43 |
| 分子式 | C21H21FN6O |
| CAS号 | 405169-16-6 |
| 纯度 | >99% |
| 溶解性（25°C） | DMSO 30 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 | J807C, Y373C, K650E, G384D, wild type (WT), F384L and B9-MINV cells |
| 方法 | Viability assay.
Cell viability was assessed by 3-(4,5-dimethylthiazol)-2,5-diphenyl tetrazolium (MTT) dye absorbance according to the manufacturer's instructions (Boehringer Mannheim, Mannheim, Germany). Cells were seeded in 96-well plates at a density of 5000 (B9 cells) or 20 000 (MM cell lines) cells per well. Cells were incubated with 30 ng/mL aFGF and 100 μg/mL heparin or 1% IL-6 where indicated and increasing concentrations of CHIR-258. For each concentration of CHIR-258, 10-μL aliquots of drug or DMSO diluted in culture medium was added. For drug combination studies, cells were incubated with 0.5 μM dexamethasone, 100 nM CHIR-258, or both simultaneously where indicated. To evaluate the effect of CHIR-258 on growth of MM cells adherent to BMSCs, 10 000 KMS11 cells were cultured on BMSC-coated 96-well plates in the presence or absence of CHIR-258. Plates were incubated for 48 to 96 hours. |
| 浓度 | 0~400 n M |
| 处理时间 | 48 h |
| 动物实验 |
|---|
| 动物模型 | KMS11 cells xenograft mouse model |
| 配制 | 5 mM citrate buffer |
| 剂量 | 10, 30, or 60 mg/kg daily for 21 days |
| 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 |
|---|
| 1 mM | 2.5482 mL | 12.7411 mL | 25.4823 mL |
| 5 mM | 0.5096 mL | 2.5482 mL | 5.0965 mL |
| 10 mM | 0.2548 mL | 1.2741 mL | 2.5482 mL |
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