| Literature DB >> 2164611 |
D X Zhou1, A Taraboulos, J H Ou, T S Yen.
Abstract
Normal hepatocytes express very few class I major histocompatibility complex (MHC I) molecules, but MHC I expression is elevated in hepatitis B virus (HBV) infection. We report here that hepatoblastoma cells with replicating HBV genomes express three- to fourfold-higher levels of MHC I protein and mRNA than do parent cells without HBV DNA. Transient transfection assays demonstrated that the HBV X protein trans activated transcription from an MHC I promoter and allowed identification of cis elements important for trans activation.Entities:
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Year: 1990 PMID: 2164611 PMCID: PMC249705 DOI: 10.1128/JVI.64.8.4025-4028.1990
Source DB: PubMed Journal: J Virol ISSN: 0022-538X Impact factor: 5.103