Immune efficacy of an adenoviral vector-based swine influenza vaccine against antigenically distinct H1N1 strains in mice
文献类型: 外文期刊
第一作者: Wu, Yunpu
作者: Wu, Yunpu;Wei, Ping;Wu, Yunpu;Yang, Dawei;Xu, Bangfeng;Liang, Wenhua;Sui, Jinyu;Chen, Yan;Yang, Huanliang;Chen, Hualan;Qiao, Chuanling
作者机构:
关键词: Swine influenza virus;Avian-like H1N1;Hemagglutinin;Protective immunity;Recombinant adenovirus
期刊名称:ANTIVIRAL RESEARCH ( 影响因子:5.97; 五年影响因子:5.801 )
ISSN: 0166-3542
年卷期: 2017 年 147 卷
页码:
收录情况: SCI
摘要: Avian-like H1N1 swine influenza viruses are prevalent in pigs and have occasionally crossed the species barrier and infected humans, which highlights the importance of preventing swine influenza. Human adenovirus serotype 5 (Ad5) has been tested in human influenza vaccine clinical trials and has exhibited a reliable safety profile. Here, we generated a replication-defective, recombinant adenovirus (designated as rAd5-avH1HA) expressing the hemagglutinin gene of an avian-like H1N1 virus (A/swine/Zhejiang/199/2013, ZJ/199/13). Using a BALB/c mouse model, we showed that a two-dose intramuscular administration of recombinant rAd5-avH1HA induced high levels of hemagglutination inhibition antibodies and prevented homologous and heterologous H1N1 virus-induced weight loss, as well as viral replication in the nasal turbinates and lungs of mice. Furthermore, a prime-boost immunization strategy trial with a recombinant plasmid (designated as pCAGGS-HA) followed by rAd5-avH1 HA vaccine provided effective protection against homologous and heterologous H1N1 virus infection in mice. These results indicate that rAd5-avH1HA is an efficacious genetically engineered vaccine candidate against H1N1 swine influenza. Future studies should examine its immune efficacy in pigs. (c) 2017 Elsevier B.V. All rights reserved.
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