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How specific is too specific? B‐cell responses to viral infections reveal the importance of breadth over depth

Identifieur interne : 001555 ( Main/Exploration ); précédent : 001554; suivant : 001556

How specific is too specific? B‐cell responses to viral infections reveal the importance of breadth over depth

Auteurs : Nicole Baumgarth [États-Unis]

Source :

RBID : ISTEX:6A75542D4472813AF5EE4C0E839252D1CF72F646

English descriptors

Abstract

Influenza virus infection induces robust and highly protective B‐cell responses. Knowledge gained from the analysis of such protective humoral responses can provide important clues for the design of successful vaccines and vaccination approaches and also provides a window into the regulation of fundamental aspects of B‐cell responses that may not be at play when responses to non‐replicating agents are studied. Here, I review features of the B‐cell response to viruses, with emphasis on influenza virus infection, a highly localized infection of respiratory tract epithelial cells, and a response that is directed against a virus that continuously undergoes genetic changes to its surface spike protein, a major target of neutralizing antibodies. Two aspects of the B‐cell response to influenza are discussed here, namely polyreactive natural antibodies and the role and function of germinal center responses. Both these features of the B‐cell response raise the question of how important antibody fine‐specificity is for long‐term protection from infection. As outlined, the pathogenesis of influenza virus and the nature of the antiviral B‐cell response seem to emphasize repertoire diversity over affinity maturation as driving forces behind the influenza‐specific B‐cell immunity.

Url:
DOI: 10.1111/imr.12094


Affiliations:


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