H2N2V1, Main, Exploration, bibRecord, 000910

Broad protection against influenza infection by vectored immunoprophylaxis in mice

Identifieur interne : 000910 ( Main/Exploration ); précédent : 000909; suivant : 000911

Broad protection against influenza infection by vectored immunoprophylaxis in mice

Auteurs : Alejandro B. Balazs [États-Unis] ; Jesse D. Bloom [États-Unis] ; Christin M. Hong [États-Unis] ; Dinesh S. Rao [États-Unis] ; David Baltimore [États-Unis]

Source :

Nature biotechnology [ 1087-0156 ] ; 2013.

RBID : PMC:4030719

Abstract

Neutralizing antibodies that target epitopes conserved among many strains of influenza virus have been recently isolated from humans. Here we demonstrate that adeno-associated viruses (AAV) encoding two such broadly neutralizing antibodies are protective against diverse influenza strains. Serum from mice that received a single intramuscular AAV injection efficiently neutralized all H1, H2 and H5 influenza strains tested. After infection with diverse strains of H1N1 influenza, treated mice showed minimal weight loss and lung inflammation. Protection lasted for at least 11 months after AAV injection. Notably, even immunodeficient and older mice were protected by this method, suggesting that expression of a monoclonal antibody alone is sufficient to protect mice from illness. If translated to humans, this prophylactic approach may be uniquely capable of protecting immunocompromised or elderly patient populations not reliably protected by existing vaccines.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4030719

DOI: 10.1038/nbt.2618
PubMed: 23728362
PubMed Central: 4030719

Affiliations:

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Broad protection against influenza infection by vectored immunoprophylaxis in mice

Broad protection against influenza infection by vectored immunoprophylaxis in mice

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Abstract

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