Journal
ARCHIVES OF MICROBIOLOGY
Volume 202, Issue 7, Pages 1889-1898Publisher
SPRINGER
DOI: 10.1007/s00203-020-01909-9
Keywords
HCV; Ethanol; ROS; ISG-15; Beclin-1
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Funding
- Tarbiat Modares University [Med-54395]
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Alcohol consumption exacerbates the pathogenesis of hepatitis C virus (HCV) infection and aggravates disease consequences in alcohol-abusing patients. Although the exact reasons by which alcohol consumption affects several cellular pathways in liver cells are not clear, they might be partially attributed to the ability of alcohol to further suppress the innate immunity, modulation of autophagy and also its relationship with reactive oxygen species (ROS) generation. To evaluate these issues, Huh7 cells harboring HCV replicon and Cytochrome p450 (CYP2E1) plasmid were exposed to ethanol and mRNA expression of Beclin-1, interferon-stimulated gene15 (ISG15) genes and HCV NS5B for two different times were relatively quantitated. ROS was determined by flow cytometry. The results showed that alcohol treatment in a short time caused an increase in HCV NS5B and Beclin-1 mRNA and decreased ISG 15 mRNA. Long-lasting alcohol treatment increased ROS production in Huh-7 cells and HCV replication was reduced. In conclusion, acute alcohol treatment might contribute to increase HCV replication by interference in innate immunity and induction of autophagy. Chronic alcohol treatment caused oxidative stress, which disrupts autophagy and thereby increased the rate of Huh7 cell injury.
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