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含CpG序列PRRSV ORF5基因真核表达质粒在小鼠的细胞免疫应答
引用本文:温建新,李俊,周顺,任慧英,刘文华,邹玲,徐文,牛钟相,王金宝.含CpG序列PRRSV ORF5基因真核表达质粒在小鼠的细胞免疫应答[J].中国兽医学报,2009,29(12).
作者姓名:温建新  李俊  周顺  任慧英  刘文华  邹玲  徐文  牛钟相  王金宝
作者单位:1. 山东农业大学,动物科技学院,山东,泰安,271018;青岛农业大学,动物科技学院,山东,青岛,266109
2. 山东省农业科学院,山东,济南,250000
3. 青岛农业大学,动物科技学院,山东,青岛,266109
4. 山东农业大学,动物科技学院,山东,泰安,271018
摘    要:为了提高猪繁殖与呼吸综合征病毒(PRRSV)基因免疫的效果,构建含CpG基序和PRRSV ORF5的真核重组表达质粒CpG-pVAX1-ORF5.经酶切鉴定和序列测定,将重组质粒转染COS-7细胞,经间接免疫荧光试验证实CpG-pVAX1-ORF5可表达PRRSV GP5蛋白.免疫SPF小鼠,检测鼠的脾T淋巴细胞亚群数量(CD4+和CD8+)以及淋巴细胞增殖反应(MTT法)水平.结果表明本试验构建的含CpG基序真核重组表达质粒CpG-pVAX1-ORF5能诱导小鼠产生针对PRRSV的细胞免疫.

关 键 词:猪繁殖与呼吸综合征病毒  ORF5基因  细胞免疫应答

Cellular immune response to eukaryotic expression vector containing PRRSV ORF5 and CpG motifs
WEN Jian-xin,LI Jun,ZHOU Shun,REN Hui-ying,LIU Wen-hua,ZOU Lin,XU Wen,NIU Zhong-xiang,WANG Jin-bao.Cellular immune response to eukaryotic expression vector containing PRRSV ORF5 and CpG motifs[J].Chinese Journal of Veterinary Science,2009,29(12).
Authors:WEN Jian-xin  LI Jun  ZHOU Shun  REN Hui-ying  LIU Wen-hua  ZOU Lin  XU Wen  NIU Zhong-xiang  WANG Jin-bao
Abstract:To improve the gene immunization against porcine reproductive and respiratory syndrome virus(PRRSV),the eukaryotie expression vector CpG-pVAX1-ORF5 containing PRRSV ORF5 gene coding region and CpG motif we constructed After identified by enzyme analysis and nucleotide sequencing test,the recombinant expression vector plasmid CpG-pVAX1-ORF5 was transfected into COS-7 cells.The transient expression of PRRSV ORF5 nucleocapsid protein was detected by indirect immunofluorescence assay(IFA).The recombinant expression plasmid was inoculated into SPF mice.The number of CD4+、CD8+and the lymphocyte proliferation test(MTT)in peripheral blood of the vaccinated mice were used to detect.The results showed that ehd recombinant plasmid CpG-pVAX1-ORF5 could induce higher cellular immune response.
Keywords:porcine reproductive and respiratory syndrome virus(PRRSV)  ORF5 gene  cellular immune response
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