基于DENV-prM/E基因构建DENV-VLP及其免疫学特性
摘 要:【目的】 构建和表达登革病毒4型病毒样颗粒,初步研究其免疫学特性。【方法】 用RT-PCR法扩增DENV4-prM/E基因,构建重组质粒pGAPZ-sprM/E-D4,转化X33酵母菌株,SDS-PAGE、WesternBlot鉴定目的蛋白表达。切片电镜检测病毒样颗粒,蔗糖密度梯度离心纯化。免疫三组Balb/C小鼠,每组15只。采用间接ELISA检测抗原特异性抗体,间接免疫荧光法检测免疫血清与天然病毒粒子的结合,流式细胞术分析小鼠脾淋巴细胞表型,酶联免疫斑点法(ELISPOT)检测脾分泌IFN-γ、TNF-α和IL-10的细胞。【结果】重组质粒在酵母中以病毒样颗粒形式表达,为直径20...
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| Format: | Article |
|---|---|
| Language: | zho |
| Published: |
Editorial Office of Journal of Sun Yat-sen University
2014-01-01
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| Series: | Zhongshan Daxue xuebao. Yixue kexue ban |
| Online Access: | http://xuebaoyx.sysu.edu.cn/zh/article/43574356/ |
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