The structural immunology of antibody protection against West Nile virus

Authors: Diamond, Michael S.; Pierson, Theodore C.; Fremont, Daved H.

Source: Immunological Reviews, Volume 225, Number 1, October 2008 , pp. 212-225(14)

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Abstract:

Summary:

Recent investigations of the interaction between the West Nile virus (WNV) envelope protein (E) and monoclonal antibodies (mAbs) have elucidated fundamental insights into the molecular mechanisms of neutralization. Structural studies have defined an epitope on the lateral ridge of domain III (DIII-lr) of the WNV E protein that is recognized by antibodies with the strongest neutralizing activity in vitro and in vivo. Antibodies that bind this epitope are highly potent because they efficiently block at a post-entry step of viral infection with relatively low virion occupancy requirements. In this review, we discuss the structural, molecular, and immunologic basis for antibody-mediated protection against WNV, and its implications for novel therapeutic or vaccine strategies.

Keywords: infectious diseases; antibodies; emerging infectious disease; antigens/peptides/epitopes; complement

Document Type: Research article

DOI: http://dx.doi.org/10.1111/j.1600-065X.2008.00676.x

Affiliations: 1: Viral Pathogenesis Section, Laboratory of Viral Diseases, National Institutes of Health, Bethesda, MD, USA.

Publication date: 2008-10-01