论文部分内容阅读
以HIV-1 p24gag 与hIL-6 基因在重组痘苗病毒中的共表达研究为目的,将痘苗病毒复制非必需区血凝素(HA) 基因作为侧翼,把编码人白细胞介素6(hIL-6)的基因片段克隆到真核表达质粒p16QF1 -24 的下游,构建成含有HIV- 1p24gag 和hIL-6 两种外源基因的重组表达质粒p16QF24 -IL6 ,经同源重组和血凝素阴性空斑筛选,获得了重组痘苗病毒v16QF24 -IL6.经间接免疫荧光试验、Dot- ELISA 和Western bolt 等检测证明,重组病毒能同时表达p24gag 蛋白和IL-6 蛋白,表达产物的相对分子质量分别为2-4×104 ,2-6×104 .此种方式表达的外源蛋白持续释放,可产生更强的免疫效果,可望用于HIV疫苗的研究.
In order to study the co-expression of HIV-1 p24gag and hIL-6 gene in recombinant vaccinia virus, the non-essential hemagglutinin (HA) gene of vaccinia virus was used as a flanking region and the gene encoding human interleukin 6 (hIL-6 ) Was cloned downstream of the eukaryotic expression plasmid p16QF1 -24 to construct a recombinant plasmid p16QF24-IL6 containing two exogenous genes, HIV-1p24gag and hIL-6. The recombinant plasmid p16QF24-IL6 was identified by homologous recombination and hemagglutinin-negative plaque After screening, the recombinant vaccinia virus v16QF24-IL6 was obtained. The results of indirect immunofluorescence assay, Dot-ELISA and Western bolt showed that the recombinant virus could express p24gag protein and IL-6 protein at the same time. The relative molecular mass of the expressed product were 2-4 × 104 and 2-6 × 104, respectively. The sustained release of the foreign protein expressed in this way can produce a stronger immune effect and is expected to be used in the research of HIV vaccine.