周卫红,万艳平,陈章国,马大龙.Cos - 7 细胞表达 I L- 2 - H B Vpre S 融合蛋白的免疫原性.[J].中南医学科学杂志.,1999,(3):.
Cos - 7 细胞表达 I L- 2 - H B Vpre S 融合蛋白的免疫原性
Immunogenecity of Hepatitis B Virus PreS Antigen and Interleukin-2 Fused Protein Expressed by Cos-7 Cell
  
DOI:
中文关键词:  Cos-7细胞,乙肝病毒前S抗原,白细胞介素-2,融合蛋白,免疫原性
英文关键词:HBVpreSAg,IL-2,fused protein,immunogenecity,Cos-7 cell,
基金项目:
周卫红  万艳平  陈章国  马大龙
衡阳医学院病原检测教研室(周卫红,万艳平,陈章国)
,北京医科大学分子免疫学研究室(马大龙)
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中文摘要:
      为了协同白细胞介素- 2( I L- 2) 和乙型肝炎病毒( H B V) 前 S 抗原(pre S) 的多种生物学功能,用基因重组方法将表达 I L- 2pre S 的质粒p C W I I P 转染 Cos - 7 细胞。该细胞分泌表达的 I L- 2pre S 融合蛋白保留了 I L- 2 和pre S 抗原天然分子的生物学活性,且能增强pre S 抗原的免疫原性,产生协同作用,促进机体免疫应答。这可能为 H B V 持续性感染者寻找新的治疗方法提供理论基础与实验依据。
英文摘要:
      In order to combine the biofunctions of interleukin-2(IL-2) and preS antigen(preSAg, preS) of hepatitis B virus(HBV) and search for the therapeutic agents specific for HBV persistent infection, we constructed the eukaryotic expression plasmid pCWIIP for IL-2preS, which could be secreted from the Cos-7 cells transfected with pCWIIP.The efficiency for Cos-7 cells to secretively express IL-2preS fused protein was identical to that to express IL-2 and preS alone, but the fused protein might enhance the immunogenecity of the preS and improve immune response in human. The result laid an evidence of theory and experiment for the designation and construction of preventive and therapeutic drugs specific against HBV persistent infection.
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