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Immunomodulation Induced During Interferon-α Therapy Impairs the Anti-HBV Immune Response Through CD24CD38 B Cells

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Journal Front Immunol
Date 2021 Jan 11
PMID 33424840
Citations 8
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Abstract

Type I interferon is widely used for antiviral therapy, yet has yielded disappointing results toward chronic HBV infection. Here we identify that PEG-IFNα-2b therapy toward persistent infection in humans is a double-edged sword of both immunostimulation and immunomodulation. Our studies of this randomised trial showed persistent PEG-IFNα-2b therapy induced large number of CD24CD38 B cells and launched a CD24CD38 B cells centered immunosuppressive response, including downregulating functions of T cells and NK cells. Patients with low induced CD24CD38 B cells have achieved an improved therapeutic effect. Specifically, using the anti-CD24 antibody to deplete CD24CD38 B cells without harming other B cell subsets suggest a promising strategy to improve the therapeutic effects. Our findings show that PEG-IFNα-2b therapy toward persistent infection constitutes an immunomodulation effect, and strategies to identifying the molecular basis for the antiviral versus immunomodulatory effects of PEG-IFNα-2b to selectively manipulate these opposing activities provide an opportunity to ameliorate anti-virus immunity and control viral infection.

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