Abstract
Chimeric mouse models with a humanized liver (Hu-HEP mice) provide a unique tool to study human hepatotropic virus diseases, including viral infection, viral pathogenesis, and anti-viral therapy. Here, we describe a detailed protocol for studying hepatitis B infection in NRG-derived fumarylacetoacetate hydrolase (FAH) knockout mice repopulated with human hepatocytes (FRG-Hu HEP mice). The procedures include (1) maintenance and genotyping of the FRG mice, (2) intrasplenic injection of primary human hepatocytes (PHH), (3) 2-(2-nitro-4-fluoromethylbenzoyl)-1,3-cyclohexanedione (NTBC) drug reduction cycling to improve human hepatocyte repopulation, (4) human albumin detection, and (5) HBV infection and detection. The method is simple and allows for highly reproducible generation of FRG-Hu HEP mice for HBV infection and therapy investigations.
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