Journal
VIRUSES-BASEL
Volume 14, Issue 1, Pages -Publisher
MDPI
DOI: 10.3390/v14010065
Keywords
hepatitis D virus; hepatitis B virus; interleukine-1 beta; macrophages; NF-kappa B; hepatocytes; antiviral activity
Categories
Funding
- ANRS (French national agency for research on AIDS and viral hepatitis)
- INSERM
- Lyon 1 Claude Bernard University, Ecole Normale Superieure (ENS) Lyon and ANRS [ECTZ132570]
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Co-infection with hepatitis B virus and hepatitis delta virus is the most aggressive form of viral hepatitis. IL-1 beta has shown to be effective against both HBV and HDV, and monocytes exposed to HBV secrete less IL-1 beta. Developing combined antiviral strategies that reduce HBsAg secretion and stimulate endogenous IL-1 beta production could be important.
Co-infection with the hepatitis B virus and hepatitis delta virus (HDV) leads to the most aggressive form of viral hepatitis. Using in vitro infection models, we confirmed that IL-1 beta, a crucial innate immune molecule for pathogen control, was very potent against HBV from different genotypes. Additionally, we demonstrated for the first time a strong and rapid antiviral effect induced by very low doses of IL-1 beta against HDV. In parallel, using co-culture assays, we demonstrated that monocytes exposed to HBV, and in particular to HBsAg, during differentiation into pro-inflammatory macrophages secreted less IL-1 beta. Altogether, our data emphasize the importance of developing combined antiviral strategies that would, for instance, reduce the secretion of HBsAg and stimulate the immune system to produce endogenous IL-1 beta efficient against both HBV and HDV.
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