细胞因子表达质粒对恶性疟原虫顶端膜抗原1DNA免疫的调节作用

被引:2
作者
李珣
缪军
雷俊川
薛采芳
王宪锋
刘忠湘
李淑梅
机构
[1] 西藏军区总医院实验中心
[2] 第四军医大学病原生物学教研室
[3] 第四军医大学病原生物学教研室 拉萨
[4] 西安
关键词
恶性疟原虫; 顶端膜抗原1; DNA疫苗; 细胞因子类; 佐剂,免疫;
D O I
暂无
中图分类号
R392 [医学免疫学];
学科分类号
100102 ;
摘要
目的 探讨细胞因子表达质粒对小鼠DNA免疫的促进和调节作用。 方法 构建编码恶性疟原虫顶端膜抗原 1(AMA1)完整胞外域的DNA免疫质粒VR10 2 0 /E ,构建编码小鼠细胞因子 (GM CSF)、白细胞介素 (IL)如IL 4和IL 12的真核表达质粒pcDNA3 /GM CSF、pcDNA3 .1( ) /IL 4和pIL 12以及双顺反子质粒pGM CSF/pTPA E ,分组免疫小鼠 ,ELISA检测血清中特异性IgG及其亚类的水平 ,取小鼠脾细胞进行体外增殖。 结果  3种细胞因子质粒均有效增强了小鼠针对VR10 2 0 /E的免疫应答 ,抗体水平增加 7至 10倍 ,其中pcDNA3 /GM CSF质粒和pIL 12质粒分别显著促进了小鼠的IgG1和IgG2a应答 ,小鼠脾细胞的体外增殖水平亦有明显提高。 结论 利用编码GM CSF、IL 4和IL 12的表达质粒作为佐剂可有效增强小鼠针对AMA1DNA的免疫应答 ,并对免疫应答的类型产生调节作用。
引用
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页码:8 / 10
页数:3
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