生物活性
AST-1306是一种新型,不可逆的EGFR和ErbB2抑制剂,IC50分别为0.5 nM和3 nM,对突变型EGFR T790M/L858R也有效,作用于过表达ErbB2的细胞更有效,作用于ErbB家族比作用于其他激酶选择性高3000倍。AST-1306选择性抑制EGFR和ErbB2酪氨酸激酶活性。AST-1306也有效抑制T790M/L858R双突变型EGFR,IC50为12 nM。AST-1306效果比Lapatinib高500多倍。
化学数据
分子量 | 621.08 |
分子式 | C24H18ClFN4O2 |
CAS号 | 1050500-29-2 |
纯度 | >98% |
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 |
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细胞系 | Calu-3 and A-549 cell lines |
方法 | Using the SRB (Sulforhodamine B) assay to evaluate cell (including Calu-3, A-549 cell line et al.) proliferation . Briefly, seeding cells into 96-well plates and grown for 24 hours. Then treating the cells with increasing concentrations of AST-1306 and grown for a further 72 hours. The medium remains unchanged until the completion of the experiment. Then fixing the cells with 10% precooled trichloroacetic acid (TCA) for 1 hour at 4 °C and staining for 15 min at room temperature with 100 μL of 4 mg/mL SRB solution in 1% acetic acid. Then removingthe SRB , and quickly rinsing the cells five times with 1% acetic acid. After cells are air-dried, protein-bound dye is dissolved in 150 μL of 10 mM Tris base for 5 min and measured at 515 nm using a multiwell spectrophotometer.Calculating the inhibition rate on cell proliferation as (1 - A515 treated/A515 control) × 100%. Obtaining the IC50 value by the Logit method and determining from the results of at least 3 independent tests. |
浓度 | 0.001-1 μM |
处理时间 | 72 hours |
动物实验 |
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动物模型 | Nude mice bearing SK-OV-3 xenograft tumors and SK-OV-3FVB-2/Nneu transgenic mouse |
配制 | 0.5% hydroxypropyl methylcellulose (HPMC), grinding with agate morta |
剂量 | 25 mg/kg, 50 mg/kg and 100 mg/kg |
给药处理 | p.o., twice daily |
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 | 1.6101 mL | 8.0505 mL | 16.101 mL |
5 mM | 0.322 mL | 1.6101 mL | 3.2202 mL |
10 mM | 0.161 mL | 0.805 mL | 1.6101 mL |