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。

98%

Store at -20℃ for one year（Powder）；Store at 2-4℃ for two weeks；Store at -20℃ for six months after dissolution.

ITMN-191；R7227；RO5190591；RG72277；丹诺普韦

Ethanol ：133 mg/mL (181.7 mM)

DMSO ：133 mg/mL (181.7 mM)

HCV NS3/4A protease

Danoprevir (0.29 nM) inhibits the reference genotype 1 NS3/4A protease half-maximally, but a high dose of Danoprevir (10 μM) shows no appreciably inhibition in a panel of 79 proteases, ion channels, transporters, and cell surface receptors. Danoprevir remains bound to and inhibits NS3/4A for more than 5 hours after its initial association. Danoprevir (45 nM) eliminates a patient-derived HCV genotype 1b replicon from hepatocyte-derived Huh7 cells with an EC50 of 1.8 nM. In HCV subgenomic replicon cell lines containing the individual mutations, V36M, R109K, and V170A substitutions confer little or no resistance to Danoprevir, but the R155K substitution confers a high level (62-fold increase) of resistance to Danoprevir. In Huh7.5 cells transfected with chimeric recombinant virus, Danoprevir shows antiviral inhibition effects against HCV genotypes 1, 4 and 6 with IC50 of 2-3 nM, which are >100-fold lower than genotypes 2/3/5 (280-750 nM).

Danoprevir (30 mg/kg) administered to rats or monkeys shows that its concentrations in liver 12 hours after dosing exceed the Danoprevir concentration required to eliminate replicon RNA from cells.

Characterization of HCV quasispecies dynamics upon short term dual-therapy with the HCV NS5B nucleoside polymerase inhibitor mericitabine and the NS3/4 protease inhibitor danoprevir.
Le Pogamet al. Antimicrob Agents Chemother. 2012 Aug 6. PMID: 뢜અ 뢥અ
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