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Treating hepatitis C by blocking a cellular microRNA

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Miravirsen is a drug that binds to and blocks the function of a cellular microRNA called miR-122 that is required for the replication of hepatitis C virus (HCV). Treatment of chimpanzees chronically infected with HCV with this drug leads to suppression of viral replication. The results of a phase 2b human clinical trial in HCV infected humans indicate that Miravirsen reduces levels of viral RNA without evidence for viral resistance. I asked virologist Stan Lemon (who appeared recently on TWiV 235) his opinion of these findings.
 
 

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