ArticleiScience2023
Hepatitis C virus hypervariable region 1 antibodies interrupt E2-SR-B1 interaction to suppress viral infection.
Article in iScience, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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0 citing papers in PubMed, 1 citations in OpenAlex.
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17 authors at 3 institutions in 1 country.
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Abstract
Whether hypervariable region 1 (HVR1)-targeting antibodies elicited during natural hepatitis C virus (HCV) infection contribute to virus clearance and what is the mechanism underlying remain unclear. Here, we demonstrated that treatment of HCV-infected hepatoma Huh7.5 cells with the IgGs purified from 2 of 28 (7.1%) chronic hepatitis C (CHC) patients efficiently controlled the infection, for which genotype 1b HVR1 (1bHVR1)-binding antibody was critical. Moreover, we found that 1bHVR1 peptide was superior to 2aHVR1 in rabbit immunization to elicit antibodies neutralizing genotypes 1a, 2a, 3a, and 4a. The neutralization effect of 1bHVR1 IgG could be augmented by HH-1, an antibody constructed from CHC memory B cells but without binding to HVR1 peptide. Mechanistic studies showed that 1bHVR1 antisera and IgGs disrupted the interaction of E2-SR-B1 receptor. This study highlights the neutralizing activity of HVR1 antibody elicited by CHC patients and generated by HVR1-immunization against the established infections of multiple HCV genotypes.
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