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T lymphocyte activation by dendritic cells pulsed with VP1-VP4 fusion protein of foot-and-mouth disease virus
Author(s): 
Pages: 818-822
Year: Issue:  6
Journal: Chinese Journal of Veterinary Science

Keyword:  口蹄疫病毒 VP1-VP4融合蛋白质 原核表达 树突状细胞 T细胞;
Abstract: 为研究负载口蹄疫病毒VP1-VP4融合蛋白质的树突状细胞对淋巴结T细胞的活化效应,通过构建pET32a-VP1-VP4原核表达系统制备VP1-VP4融合蛋白。将纯化VP1-VP4融合蛋白负载骨髓源树突状细胞(BMDC)后与淋巴结T细胞共培养,用ELISA检测不同时间点的共培养上清液中IFN-γ的含量。结果表明,负载FMDVVP1-VP4融合蛋白后的BMDC可通过溶酶体-MHC-Ⅱ类分子途径有效地激活淋巴结T细胞,从而启动Th1细胞免疫应答,分泌大量IFN-γ。
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