生物活性
SU11274是选择性的Met抑制剂,IC50为10 nM,对PGDFRβ, EGFR和Tie2没有作用效果。SU11274作用于Met时,选择性比作用于Flk时选择性高50倍,比作用于其他酪氨酸激酶,如FGFR-1, c-src, PDGFbR, 和EGFR时选择性高500-1000倍。SU11274抑制PI3K通路关键调节器的磷酸化, 包括AKT, FKHR,或GSK3β。在白细胞介素- 3存在时,SU11274处理,抑制TPR-MET转化的BaF3细胞生长,这种作用存在剂量依赖性,IC50<3 μM,不会抑制其他致癌酪氨酸激酶转化的BaF3细胞生长,包括BCR-ABL, TEL-JAK2, TEL-ABL,和TEL-PDGFβR。
化学数据
分子量 | 568.09 |
分子式 | C28H30ClN5O4S |
CAS号 | 658084-23-2 |
纯度 | >99% |
溶解性(25°C) | DMSO 82 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 | LoVo cells line |
方法 | MTT assay. After pancreatic enzymeization, cells were seeded in 96-well plates at 1 9 105/ml (200 ll/well) and allowed to adhere overnight. SU11274, dissolved in 1 % DMSO and diluted in medium, was added at different concentrations 0.1, 0.5, 2.5 μM, 2μl per well. Another 4 wells were set as a reference and incubated for 24, 48 and 72 h. Twenty microliter MTT (5 g/l; Invitrogen, USA) was added, and cells were incubated for another 4 h. The supernatant was removed, 150 ll DMSO was added and oscillated for 10 min avoiding light at room temperature. The assessment procedure was repeated 3 times, and the average value was determined from each well as the absorbance value at 490 nm on a microplate reader. |
浓度 | 0.1, 0.5, 2.5 μM |
处理时间 | 24, 48 and 72 h |
动物实验 |
---|
动物模型 | LoVo cells tumor xenograft in 4- to 5-week-old female nude mice (BALB/c-nu/nu) |
配制 | 1 % DMSO |
剂量 | 0.18, 0.09, 0.0225 mg/kg once daily for 30 days from the day that the tumors became palpable |
给药处理 | celiac injection |
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 | 1.7603 mL | 8.8014 mL | 17.6028 mL |
5 mM | 0.3521 mL | 1.7603 mL | 3.5206 mL |
10 mM | 0.176 mL | 0.8801 mL | 1.7603 mL |