生物活性
GDC-0575 (ARRY-575, RG7741) is a potent and selective oral inhibitor of cell cycle checkpoint kinase 1 (Chk1) with an IC50 of 1.2 nM. GDC-0575 abrogates DNA damage-induced S and G2–M checkpoints, exacerbates DNA double-strand breaks and induces apoptosis in STS cells. GDC-0575 has a synergistic or additive effect together with gemcitabine.
In vivo, GDC-0575 is active at 25 mg/kg as a single agent, but the efficacy is improved at the higher dose. GDC-0575 effectively blocks tumor growth in the D20 and C002 xenografts, and the effect is maintained for at least 10 days after the final dose is administered.
化学数据
分子量 | 378.27 |
分子式 | C16H20BrN5O |
CAS号 | 1196541-47-5 |
纯度 | >99% |
溶解性(25°C) | DMSO 80 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 | AML cell lines |
方法 | AML cell lines are seeded at 1×104cells/well in 96-well plates in triplicate, and subjected to different treatment conditions. After 24 h of incubation with GDC-0575, cell proliferation is measured with the XTT Cell Proliferation Kit II. |
浓度 | 100 nM |
处理时间 | 24 h |
动物实验 |
---|
动物模型 | Female nude BALB/c mice |
配制 | 0.5% w/v methylcellulose and 0.2%v/v Tween 80 |
剂量 | 25 mg/kg, 50 mg/kg |
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 | 2.6436 mL | 13.2181 mL | 26.4361 mL |
5 mM | 0.5287 mL | 2.6436 mL | 5.2872 mL |
10 mM | 0.2644 mL | 1.3218 mL | 2.6436 mL |