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Protective efficacy of in vitro synthesized, specific mRNA vaccines against influenza A virus infection.

Identifieur interne : 001295 ( Main/Exploration ); précédent : 001294; suivant : 001296

Protective efficacy of in vitro synthesized, specific mRNA vaccines against influenza A virus infection.

Auteurs : Benjamin Petsch [Allemagne] ; Margit Schnee ; Annette B. Vogel ; Elke Lange ; Bernd Hoffmann ; Daniel Voss ; Thomas Schlake ; Andreas Thess ; Karl-Josef Kallen ; Lothar Stitz ; Thomas Kramps

Source :

RBID : pubmed:23159882

Descripteurs français

English descriptors

Abstract

Despite substantial improvements, influenza vaccine production-and availability-remain suboptimal. Influenza vaccines based on mRNA may offer a solution as sequence-matched, clinical-grade material could be produced reliably and rapidly in a scalable process, allowing quick response to the emergence of pandemic strains. Here we show that mRNA vaccines induce balanced, long-lived and protective immunity to influenza A virus infections in even very young and very old mice and that the vaccine remains protective upon thermal stress. This vaccine format elicits B and T cell-dependent protection and targets multiple antigens, including the highly conserved viral nucleoprotein, indicating its usefulness as a cross-protective vaccine. In ferrets and pigs, mRNA vaccines induce immunological correlates of protection and protective effects similar to those of a licensed influenza vaccine in pigs. Thus, mRNA vaccines could address substantial medical need in the area of influenza prophylaxis and the broader realm of anti-infective vaccinology.

DOI: 10.1038/nbt.2436
PubMed: 23159882


Affiliations:


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Le document en format XML

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<div type="abstract" xml:lang="en">Despite substantial improvements, influenza vaccine production-and availability-remain suboptimal. Influenza vaccines based on mRNA may offer a solution as sequence-matched, clinical-grade material could be produced reliably and rapidly in a scalable process, allowing quick response to the emergence of pandemic strains. Here we show that mRNA vaccines induce balanced, long-lived and protective immunity to influenza A virus infections in even very young and very old mice and that the vaccine remains protective upon thermal stress. This vaccine format elicits B and T cell-dependent protection and targets multiple antigens, including the highly conserved viral nucleoprotein, indicating its usefulness as a cross-protective vaccine. In ferrets and pigs, mRNA vaccines induce immunological correlates of protection and protective effects similar to those of a licensed influenza vaccine in pigs. Thus, mRNA vaccines could address substantial medical need in the area of influenza prophylaxis and the broader realm of anti-infective vaccinology.</div>
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