生物活性
Danoprevir (ITMN-191)是一种肽类抑制剂,作用于丙型肝炎病毒(HCV)的NS3/4A蛋白酶,IC50为0.2-3.5 nM,抑制HCV 1A/1B/4/5/6基因型比抑制2B/3A基因型效果高10倍左右。0.29 nM Danoprevir抑制NS3/4A 蛋白酶, 而10 μM Danoprevir 却不能抑制一组79种蛋白酶,离子通道,转运蛋白,及细胞表面受体。Danoprevir与 NS3/4A第一次结合能维持5小时以上,且保持抑制作用状态。Danoprevir (45 nM) 消除病人肝细胞衍生的Huh7细胞衍生的HCV基因型1b复制子,EC50为1.8 nM。
化学数据
分子量 | 731.83 |
分子式 | C35H46FN5O9S |
CAS号 | 850876-88-9 |
纯度 | >98% |
溶解性(25°C) | DMSO ≥100 mg/mL Ethanol ≥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 | Huh7 cells |
方法 | The viability of Huh7 cells, human cardiac myocytes, and human cardiac fibroblasts was assessed following 72 h of exposure to ITMN-191 using a CellTiter-Glo Luminescent Cell Viability kit (Promega, Madison, WI). For these cell types, viability in the presence of ITMN-191 was fitted to a four-parameter logistic function to obtain a 50% cytotoxic concentration (CC50). Additionally, the CC50s were determined for six primary normal human cell types in stationary and proliferating (dividing) phases by Lonza, Inc. (Walkersville, MD). The cell types included normal human hepatocytes, microvascular endothelial cells, human skeletal muscle myoblasts, human articular chondrocytes, human lung fibroblasts, and renal proximal tubule epithelial cells. For the proliferating phase, ITMN-191 was added when cells reached 50% confluence. For the stationary phase, ITMN-191 was added 1 day after cells reached 100% confluence. Cell viability was quantified following 72 h of exposure to ITMN-191 using a ViaLight Plus kit on a microplate reader. CC50s were determined as described above. |
浓度 | 5 pM ~100 nM |
处理时间 | 72 h |
动物实验 |
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动物模型 | Sprague-Dawley rats and Cynomolgus monkeys |
配制 | water |
剂量 | 30-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 |
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1 mM | 1.3664 mL | 6.8322 mL | 13.6644 mL |
5 mM | 0.2733 mL | 1.3664 mL | 2.7329 mL |
10 mM | 0.1366 mL | 0.6832 mL | 1.3664 mL |