Beyond hepatitis C

Kapoor, Shailendra

doi:10.1002/hep.22797

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2019

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“…Haem oxygenase‐1 (HO‐1) is an antioxidant gene that regulates cellular ROS against pathogen infections . The antioxidant response element (ARE) within the regulatory region of the HO‐1 promoter is a critical regulatory element for HO‐1 expression.…”

Section: Introductionmentioning

confidence: 99%

MicroRNA‐let‐7c suppresses hepatitis C virus replication by targeting Bach1 for induction of haem oxygenase‐1 expression

Chen

Wei

Lee

2019

Journal of Viral Hepatitis

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Summary MicroRNAs are small noncoding RNAs that are central factors between hepatitis C virus (HCV) and host cellular factors for viral replication and liver disease progression, including liver fibrosis, cirrhosis and hepatocellular carcinoma. In the present study, we found that overexpressing miR‐let‐7c markedly reduced HCV replication because it induced haem oxygenase‐1 (HO‐1) expression by targeting HO‐1 transcriptional repressor Bach1, ultimately leading to stimulating an antiviral interferon response and blockade of HCV viral protease activity. In contrast, the antiviral actions of miR‐let‐7c were attenuated by miR‐let‐7c inhibitor treatment, exogenously expressing Bach1 or suppressing HO‐1 activity and expression. A proposed model indicates a key role for miR‐let‐7c targeting Bach1 to transactivate HO‐1–mediated antiviral actions against HCV. miR‐let‐7c may serve as an attractive target for antiviral development.

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Section: Introductionmentioning

confidence: 99%