Development and immunogenicity of a recombinant pseudorabies virus expressing Sj26GST and SjFABP from Schistosoma japonicum
文献类型: 外文期刊
第一作者: Wei, Feng
作者: Wei, Feng;Zhai, Yujia;Jin, Hongtao;Shang, Limin;Men, Jingtao;Liu, Quan;Gao, Hongwei;Wei, Feng;Lin, Jiaojiao;Fu, Zhiqiang;Shi, Yaojun;Zhu, Xing-Quan
作者机构:
关键词: interleukin-2: IL-2;interferon-gamma: IFN-gamma;26kDa glutathione S-transferase: Sj26GST;fatty acid binding protein: SjFABP;anti-soluble worm antigen preparation antibody;recombinant pseudorabies virus vaccine: antiinfective-drug;antiparasit;ic-drug;vaccine;intramuscular administration;worm reduction;splenocyte proliferative response;hepatic reduction
期刊名称:VACCINE ( 影响因子:3.641; 五年影响因子:3.816 )
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收录情况: SCI
摘要: Recombinant pseudorabies virus (PRV) Bartha-K61 vaccine strains expressing Schistosoma japonicum 26 kDa glutathione S-transferase (Sj26GST) and fatty acid binding protein (SjFABP), designated as rPRV/Sj26GST, rPRV/SjFABP and rPRV/Sj26GST-SjFABP, were constructed and evaluated for their ability to protect mice and sheep against S. japonicum challenge. Animals were given 2 intramuscular immunizations 3 weeks apart, and challenged with S. japonicum cercariae 4 weeks later. All mice vaccinated with recombinant virus developed specific anti-SWAP (soluble worm antigen preparation) antibody, splenocyte proliferative response and production of IFN-gamma and IL-2. Injection of rPRV/Sj26GST-SjFABP significantly increased levels of antibody, splenocyte proliferative response and production of IFN-gamma, compared with rPRV/Sj26GST and rPRV/SjFABP. These recombinant viruses have been shown to be safe for sheep. Challenge experiments showed worms and egg burdens were significantly reduced in animals immunized with recombinant PRVs. Most importantly, rPRV/Sj26GST-SjFABP dramatically enhanced protection with worm reduction and hepatic reduction of 39.3% and 45.5% respectively in mice, and 48.5% and 51.2% in sheep, while rPRV/Sj26GST and rPRV/SjFABP provided corresponding protection of only up to 23.7% and 27.2% in mice, and 29.0% and 35.5% in sheep. These results indicate that the multivalent vaccine for S. japonicum can produce significant specific immunity and protection, and that PRV Bartha-K61 is an effective live vector for an animal schistosomiasis japonica vaccine
分类号: R392
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