SARS病毒N蛋白真核表达质粒构建及诱导的体液免疫

CHINA TROPICAL MEDICINE(2005)

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Abstract
目的构建SARS病毒核衣壳蛋白(N)的真核表达质粒,并研究其在小鼠体内诱导的体液免疫应答. 方法采用PCR方法体外扩增SARS病毒N蛋白基因片段,定向克隆入真核表达载体pVAC,构建pVAC-N重组质粒;大量制备该重组质粒,经基因枪腹部皮内注射免疫BALB/c小鼠三次,间接ELISA法测定免疫鼠IgG抗体效价. 结果成功构建了重组表达质粒pVAC-N,免疫小鼠后可诱导产生出特异性的IgG抗体. 结论构建的真核表达质粒pVAC-N能诱导小鼠产生特异性抗体,为SARS疫苗的进一步研究打下基础.
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Key words
dna vaccine,eukaryotic expression,gene,sars
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