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Immunogenicity of newly constructed attenuated vaccinia strain LC16m8Delta that expresses SIV Gag protein

机译:表达SIV Gag蛋白的新减毒牛痘菌株LC16m8Delta的免疫原性

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摘要

We developed the method to efficiently construct recombinant vaccinia viruses based on LC16m8Delta strain that can replicate in mammalian cells but is still safe in human. Immunization in a prime-boost strategy using DNA and LC16m8Delta expressing SIV Gag elicited 7-30-fold more IFN-gamma-producing T cells in mice than that using DNA and non-replicating vaccinia DIs recombinant strain. As the previous study on the DNA-prime and recombinant DIs-boost anti-SIV vaccine showed protective efficacy in themacaque model [Someya K, Ami Y, Nakasone T, Izumi Y, Matsuo K, Horibata S, et al. Induction of positive cellular and humoral responses by a prime-boost vaccine encoded with simian immunodeficiency virus gag/pol. J Immunol 2006;176(3):1784-95], LC16m8Delta would have potential as a better recombinant viral vector for HIV vaccine.
机译:我们开发了一种基于LC16m8Delta菌株可有效构建重组痘苗病毒的方法,该菌株可在哺乳动物细胞中复制,但对人类仍然安全。使用DNA和表达LC16m8Delta的SIV Gag进行的初免-加强免疫策略在小鼠中产生的IFN-γ产生的T细胞比使用DNA和非复制性痘苗DIs重组菌株的免疫细胞多7-30倍。如先前对DNA初免和重组DIs增强型抗SIV疫苗的研究在他们的模型中显示出保护作用[Someya K,Ami Y,Nakasone T,Izumi Y,Matsuo K,Horibata S等。用猿猴免疫缺陷病毒gag / pol编码的初免-加强疫苗诱导阳性细胞和体液反应。 J Immunol 2006; 176(3):1784-95],LC16m8Delta具有作为HIV疫苗更好的重组病毒载体的潜力。

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