Bailey Justin R, Urbanowicz Richard A, Ball Jonathan K, Law Mansun, Foung Steven K H
Division of Infectious Diseases, Department of Medicine, Johns Hopkins University, Baltimore, MD, USA.
School of Life Sciences, The University of Nottingham, Nottingham, UK.
Methods Mol Biol. 2019;1911:441-450. doi: 10.1007/978-1-4939-8976-8_30.
Hepatitis C virus (HCV) pseudoparticles (HCVpp) are generated by cotransfection of HCV envelope (E1 and E2) genes along with a retroviral packaging/reporter construct into HEK293T cells. Enveloped particles bearing HCV E1E2 proteins on their surface are released through a retroviral budding process into the supernatant. Viral E1E2 glycoproteins facilitate a single round of receptor-mediated entry of HCVpp into hepatoma cells, which can be quantified by reporter gene expression. These HCVpp have been employed to study mechanisms of HCV entry into hepatoma cells, as well as HCV neutralization by immune sera or HCV-specific monoclonal antibodies.
丙型肝炎病毒(HCV)假病毒颗粒(HCVpp)是通过将HCV包膜(E1和E2)基因与逆转录病毒包装/报告构建体共转染到HEK293T细胞中产生的。表面带有HCV E1E2蛋白的包膜颗粒通过逆转录病毒出芽过程释放到上清液中。病毒E1E2糖蛋白促进HCVpp进行一轮受体介导的进入肝癌细胞的过程,这可以通过报告基因表达进行定量。这些HCVpp已被用于研究HCV进入肝癌细胞的机制,以及免疫血清或HCV特异性单克隆抗体对HCV的中和作用。