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Nucleic Acid-Induced Signaling in Chronic Viral Liver Disease
Armando Andres Roca Suarez 1 2 3 4 , Barbara Testoni 3 4 , Thomas F Baumert 1 2 5 6 , Joachim Lupberger 1 2
Affiliations
Affiliations
1
INSERM, U1110, Institut de Recherche sur les Maladies Virales et Hépatiques, Strasbourg, France.
2
Université de Strasbourg, Strasbourg, France.
3
INSERM U1052, CNRS UMR-5286, Cancer Research Center of Lyon (CRCL), Lyon, France.
4
University of Lyon, Université Claude-Bernard (UCBL), Lyon, France.
5
Institut Hospitalo-Universitaire, Pôle Hépato-digestif, Nouvel Hôpital Civil, Strasbourg, France.
6
Institut Universitaire de France (IUF), Paris, France.
PMID: 33613561 PMCID: PMC7892431 DOI: 10.3389/fimmu.2020.624034
Abstract
A hallmark for the development and progression of chronic liver diseases is the persistent dysregulation of signaling pathways related to inflammatory responses, which eventually promotes the development of hepatic fibrosis, cirrhosis and hepatocellular carcinoma (HCC). The two major etiological agents associated with these complications in immunocompetent patients are hepatitis B virus (HBV) and hepatitis C virus (HCV), accounting for almost 1.4 million liver disease-associated deaths worldwide. Although both differ significantly from the point of their genomes and viral life cycles, they exert not only individual but also common strategies to divert innate antiviral defenses. Multiple virus-modulated pathways implicated in stress and inflammation illustrate how chronic viral hepatitis persistently tweaks host signaling processes with important consequences for liver pathogenesis. The following review aims to summarize the molecular events implicated in the sensing of viral nucleic acids, the mechanisms employed by HBV and HCV to counter these measures and how the dysregulation of these cellular pathways drives the development of chronic liver disease and the progression toward HCC.
Keywords: hepatitis B virus; hepatitis C virus; hepatocellular carcinoma; inflammation; signaling; viral sensing.
Copyright © 2021 Roca Suarez, Testoni, Baumert and Lupberger. |
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