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Molecular basis of interferon resistance in hepatitis C virus.
Perales, Celia Beach, Nathan M Sheldon, Julie Domingo, Esteban
Perales, Celia
Beach, Nathan M
Sheldon, Julie
Domingo, Esteban
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2014-06-23
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Abstract
Resistance to interferon (IFN) in hepatitis C virus (HCV) differs from resistance to standard, directly-acting antiviral (DAA) agents in that the virus confronts a multicomponent antiviral state evoked by IFN. This renders unlikely the repeated selection of the same specific mutations that confer an IFN-resistance phenotype. Comparison of amino acid sequences of viral proteins in HCV that replicates in the presence of IFN in vivo or in cell culture (with entire virus or subgenomic replicons) reveals very few common candidate IFN resistance substitutions. Multiple host and viral factors contribute to divergent responses to IFN. The environmental heterogeneity in which exogenous IFN is expected to exert its selective effect may increase as a result of incorporation of new DAAs in therapy.
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Molecular basis of interferon resistance in hepatitis C virus. 2014, 8C:38-44 Curr Opin Virol
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1879-6265
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Archived with thanks to Current opinion in virology