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Monoclonal antibody induced with inactived EV71-Hn2 virus protects mice against lethal EV71-Hn2 virus infection

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Author(s): Chang Guo-hui | Luo Yan-jun | Wu Xiao-yan | Si Bing-yin | Lin Lei | Zhu Qing-yu

Journal: Virology Journal
ISSN 1743-422X

Volume: 7;
Issue: 1;
Start page: 106;
Date: 2010;
Original page

ABSTRACT
Abstract Background Enterovirus 71 (EV71) is a viral pathogen that belongs to the Picornaviridae family, EV71-infected children can develop severe neurological complications leading to rapid clinical deterioration and death. Results In this study, several monoclonal antibodies (MAbs) were produced by immunizing mice with the inactived EV71 Henan (Hn2) virus strain. The isolated MAbs were characterised by in vitro neutralizing analysis and peptide ELISA. ELISA assay showed that the neutralizing monoclonal antibody 4E8 specifically reacted with synthetic peptides which contain amino acid 240-250 and 250-260 of EV71 VP1. The in vivo protection assay showed that 4E8 can protect two-day-old BALB/c mice against the lethal challenge of EV71 virus. Conclusion The MAb 4E8 could be a promising candidate to be humanized and used for treatment of EV71 infection.

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