生物活性
CCT245737 is a potent, selective and orally active checkpoint kinase 1 (CHK1) inhibitor, with IC50 values of 1.3 nM, 2440 nM and 30 nM for CHK1, CHK2 and G2 check point abrogation, respectively. CCT245737 (150 mg/kg, p.o) alone significantly inhibits tumor growth in an Eμ-Myc mouse model of human B-cell lymphocytic leukemia. CCT245737 (150 mg/kg, p.o.) inhibits tumor growth in combination with gemcitabine (100 mg/kg i.v.) in HT29 colon cancer xenografts. CCT245737 (300 mg/kg, p.o.) also inhibits the gemcitabine (60 mg/kg, i.v.) induced pSer296 CHK1 autophosphorylation at 24 h in SW620 human colon cancer xenografts.
化学数据
分子量 | 379.34 |
分子式 | C16H16F3N7O |
CAS号 | 1489389-18-5 |
纯度 | >99% |
溶解性(25°C) | DMSO ≥ 45 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 | HT29, SW620, MiaPaCa-2 and Calu6 cell line |
方法 | Cytotoxicity is determined as the drug concentration that gave 50% inhibition of tumor cell proliferation (GI50) using a 96h (i.e. 4-doublings) Sulforhodamine B (SRB) assay. Inhibition of intracellular CHK1 activity is measured using a cell based ELISA for the abrogation of an etoposide induced G2 checkpoint (mitosis induction assay, MIA). |
浓度 | from 30 to 220nM |
处理时间 | 96 h |
动物实验 |
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动物模型 | BALB/c mice |
配制 | vehicle for oral administration of CCT245737 was DPTW (10% DMSO, 20% PEG400, 5% Tween 80 and 65% water) |
剂量 | 10mg/kg (i.v.); 150mg/kg (p.o.) |
给药处理 | i.v. or p.o. administration |
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 | 2.6362 mL | 13.1808 mL | 26.3616 mL |
5 mM | 0.5272 mL | 2.6362 mL | 5.2723 mL |
10 mM | 0.2636 mL | 1.3181 mL | 2.6362 mL |