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Epigraph hemagglutinin vaccine induces broad cross-reactive immunity against swine H3 influenza virus
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Epigraph hemagglutinin vaccine induces broad cross-reactive immunity against swine H3 influenza virus
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Journal Article
Epigraph hemagglutinin vaccine induces broad cross-reactive immunity against swine H3 influenza virus
2021
Overview
Influenza A virus infection in swine impacts the agricultural industry in addition to its zoonotic potential. Here, we utilize epigraph, a computational algorithm, to design a universal swine H3 influenza vaccine. The epigraph hemagglutinin proteins are delivered using an Adenovirus type 5 vector and are compared to a wild type hemagglutinin and the commercial inactivated vaccine, FluSure. In mice, epigraph vaccination leads to significant cross-reactive antibody and T-cell responses against a diverse panel of swH3 isolates. Epigraph vaccination also reduces weight loss and lung viral titers in mice after challenge with three divergent swH3 viruses. Vaccination studies in swine, the target species for this vaccine, show stronger levels of cross-reactive antibodies and T-cell responses after immunization with the epigraph vaccine compared to the wild type and FluSure vaccines. In both murine and swine models, epigraph vaccination shows superior cross-reactive immunity that should be further investigated as a universal swH3 vaccine.
A range of Influenza vaccines have been linked to induction of adaptive immunity in a number of animal models. Here, the authors utilize a computational design strategy and produce a swine H3 influenza vaccine which shows enhanced efficacy in both murine and porcine infectious disease models.
Publisher
Nature Publishing Group UK,Nature Publishing Group,Nature Portfolio
Subject
/ 13/106
/ 13/44
/ 82/80
/ Animals
/ Antibody Formation - immunology
/ Cross Reactions - immunology
/ Female
/ Hemagglutinin Glycoproteins, Influenza Virus - immunology
/ Humanities and Social Sciences
/ Humans
/ Immunity
/ Influenza A virus - immunology
/ Influenza Vaccines - immunology
/ Influenza, Human - immunology
/ Male
/ Mice
/ Orthomyxoviridae Infections - blood
/ Orthomyxoviridae Infections - immunology
/ Orthomyxoviridae Infections - prevention & control
/ Orthomyxoviridae Infections - virology
/ Science
/ Swine
/ Vaccines
/ Viruses
