关键词:登革病毒;基因免疫;免疫应答
摘 要 目的:研究登革病毒E基因免疫的可行性。方法:用脂质体转染法将构建的E基因重组真核表达质粒pcDNA3-E导入小鼠成纤维细胞NIH3T3细胞,SDS-PAGE和蛋白质印迹试验检测E基因的体外表达。然后将该重组真核表达质粒经肌肉注射免疫BALB/c小鼠,检测其诱发特异性免疫应答水平。结果:重组真核表达质粒pcDNA3-E在小鼠体内诱发一定水平的体液和细胞免疫应答,且持续时间较长。结论:登革病毒E基因免疫可诱发特异性免疫应答,为登革病毒疫苗的研制提供了实验依据。
中国图书分类号 R373.33
Immunogenicity of dengue virus E antigen gene in BALB/c mice
HONG Bang-Xing JIANGLi-Fang ZHANG Xin
(Department of Microbiology,Sun Yat-sen University of Medical Sciences,Guangzhou 510089)
Abstract Objective:Tostudy the possibility of dengue virus E gene vaccine.Methods:The recombinant eukaryoticexpression plasmid pcDNA3-E was first transfected into NIH3T3 cells by lipofectin.SDS-PAGEand Western blotting analyzed the expression of E gene.Then the recombinant plasmid wasintramuscularly injected to BALB/c mice,and the specific humoral and cellular immunitywere tested.Results:The recombinant plasmid DNA could induce specific immune reactions andthe immune response could last a long time.Conclusion:The dengue virus E gene vaccinecould induce specific immune reaction,which might have provided some material and newexperimential data for the further study of dengue vaccines.
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