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J Virol. 2011 Dec;85(24):13463-7. doi: 10.1128/JVI.05193-11. Epub 2011 Oct 12.

Complement-dependent lysis of influenza a virus-infected cells by broadly cross-reactive human monoclonal antibodies.

Author information

  • 1Center for Infectious Disease and Vaccine Research, Division of Infectious Diseases and Immunology, Department of Medicine, University of Massachusetts Medical School, 55 Lake Avenue North, Worcester, MA 01655, USA. Masanori.Terajima@umassmed.edu

Erratum in

  • J Virol. 2012 Feb;86(3):1901. Wrammert, Jens [added].

Abstract

We characterized human monoclonal antibodies (MAbs) cloned from influenza virus-infected patients and from influenza vaccine recipients by complement-dependent lysis (CDL) assay. Most MAbs active in CDL were neutralizing, but not all neutralizing MAbs can mediate CDL. Two of the three stalk-specific neutralizing MAbs tested were able to mediate CDL and were more cross-reactive to temporally distant H1N1 strains than the conventional hemagglutination-inhibiting and neutralizing MAbs. One of the stalk-specific MAbs was subtype cross-reactive to H1 and H2 hemagglutinins, suggesting a role for stalk-specific antibodies in protection against influenza illness, especially by a novel viral subtype which can cause pandemics.

PMID:
21994454
[PubMed - indexed for MEDLINE]
PMCID:
PMC3233150
Free PMC Article

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