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- W2088797188 abstract "Initiation of hepatitis C virus (HCV) infection is mediated by docking of the viral envelope to the hepatocyte cell surface membrane followed by entry of the virus into the host cell. Aiming to elucidate the impact of this interaction on host cell biology, we performed a genomic analysis of the host cell response following binding of HCV to cell surface proteins. As ligands for HCV–host cell surface interaction, we used recombinant envelope glycoproteins and HCV-like particles (HCV-LPs) recently shown to bind or enter hepatocytes and human hepatoma cells. Gene expression profiling of HepG2 hepatoma cells following binding of E1/E2, HCV-LPs, and liver tissue samples from HCV-infected individuals was performed using a 7.5-kd human cDNA microarray. Cellular binding of HCV-LPs to hepatoma cells resulted in differential expression of 565 out of 7,419 host cell genes. Examination of transcriptional changes revealed a broad and complex transcriptional program induced by ligand binding to target cells. Expression of several genes important for innate immune responses and lipid metabolism was significantly modulated by ligand–cell surface interaction. To assess the functional relevance and biological significance of these findings for viral infection in vivo, transcriptional changes were compared with gene expression profiles in liver tissue samples from HCV-infected patients or controls. Side-by-side analysis revealed that the expression of 27 genes was similarly altered following HCV-LP binding in hepatoma cells and viral infection in vivo. In conclusion, HCV binding results in a cascade of intracellular signals modulating target gene expression and contributing to host cell responses in vivo. Reprogramming of cellular gene expression induced by HCV–cell surface interaction may be part of the viral strategy to condition viral entry and replication and escape from innate host cell responses. (HEPATOLOGY 2006;43:1326–1336.)" @default.
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- W2088797188 date "2006-06-01" @default.
- W2088797188 modified "2023-09-28" @default.
- W2088797188 title "Host cell responses induced by hepatitis C virus binding" @default.
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- W2088797188 doi "https://doi.org/10.1002/hep.21191" @default.
- W2088797188 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/16729312" @default.
- W2088797188 hasPublicationYear "2006" @default.
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