Kim Chon Saeng, Jung Jong Ha, Wakita Takaji, Yoon Seung Kew, Jang Sung Key
PBC, Department of Life Science, Pohang University of Science and Technology, San31, Hyoja-Dong, Pohang 790-784, Republic of Korea.
J Virol. 2007 Aug;81(16):8814-20. doi: 10.1128/JVI.02824-06. Epub 2007 May 30.
An infectious hepatitis C virus (HCV) cDNA clone (JFH1) was generated recently. However, quantitative analysis of HCV infection and observation of infected cells have proved to be difficult because the yield of HCV in cell cultures is fairly low. We generated infectious HCV clones containing the convenient reporters green fluorescent protein (GFP) and Renilla luciferase in the NS5a-coding sequence. The new viruses responded to antiviral agents in a dose-dependent manner. Responses of individual cells containing HCV to alpha interferon (IFN-alpha) were monitored using GFP-tagged HCV and time-lapse confocal microscopy. Marked variations in the response to IFN-alpha were observed among HCV-containing cells.
一种传染性丙型肝炎病毒(HCV)cDNA克隆(JFH1)最近被构建出来。然而,由于HCV在细胞培养中的产量相当低,对HCV感染进行定量分析以及观察受感染细胞已被证明是困难的。我们构建了在NS5a编码序列中含有方便的报告基因绿色荧光蛋白(GFP)和海肾荧光素酶的传染性HCV克隆。新病毒对抗病毒药物呈剂量依赖性反应。使用GFP标记的HCV和延时共聚焦显微镜监测单个含有HCV的细胞对α干扰素(IFN-α)的反应。在含有HCV的细胞中观察到对IFN-α反应的显著差异。