J4

• 基础研究 •    下一篇

HIV-2 gp105重组疫苗联合免疫引起小鼠更强的免疫应答

李子健1,2,金宁一1*,张立树1,江文正3,张洪勇1,李 昌1   

  1. 1. 军事医学科学院军事兽医研究所 全军基因工程重点实验室, 吉林 长春 130062;2. 北京大学第三医院血管医学研究所,北京 100083;3. 华东师范大学生命科学学院, 上海 200433
  • 收稿日期:2005-03-16 修回日期:1900-01-01 出版日期:2006-01-28 发布日期:2006-01-28
  • 通讯作者: 金宁一

Higher immune response inflicted by combined immunization of HIV-2 gp105

LI Zi-jian1,2, JIN Ning-yi1*, ZHANG Li-shu13,ZHANG Hong-yong1, LI Chang1   

  1. 1. Key Laboratory of Genetic Engineering of PLA, Military Veterinary Institute, Academy of Military MedicalSciences, Changchun 130062,China;2. Institute of Vascular Medicine,Third Hospital,Beijing University, Beijing 100083,China; 3.School of Life Science,East China Normal University,Shanghai 200433,China
  • Received:2005-03-16 Revised:1900-01-01 Online:2006-01-28 Published:2006-01-28
  • Contact: JIN Ning-yi

摘要: 目的:探讨应用prime-boost免疫策略进行HIV-2外膜蛋白重组鸡痘病毒与重组DNA疫苗联合免疫引起小鼠的免疫应答。方法:将HIV-2 gp105重组DNA疫苗与重组鸡痘病毒以prime-boost免疫策略,免疫BALB/c小鼠,检测免疫小鼠脾CD4+、CD8+ T细胞亚群的数量、脾特异性CTL杀伤活性和血清抗 体滴度。结果:重组DNA疫苗和重组鸡痘病毒prime-boost免疫策略和两种疫苗单独免疫均刺激小鼠产生针对HIV-2靶细胞的特异性CTL杀伤活性及特异性抗体,联合免疫组特异性CTL杀伤活性及特异性抗体水平高于单独免疫组(P<0.05)。结论:以HIV-2 gp105重组DNA疫苗进行基础免疫、以HIV-2 gp105重组鸡痘病毒进行加强免疫的prime-boost免疫策略能诱导小鼠产生更强的特异性细胞和体液免疫应答。

关键词: gp105, 疫苗, DNA, 重组鸡痘病毒, 免疫策略

Abstract: Objective To provide fundamental data for developing an effective immunization strategy by different types of recombinant vaccines to protect HIV-2 infection. Methods Using prime-boost immunization strategy,BALB/c mice were inoculated muscularly with HIV-2 gp105 recombinant DNA vaccine and fowlpox virus. The numbers of CD4+ and CD8+ subgroup of spleen T lymphocyte, the specific killing activities of spleen CTL and the titers of serum antibodies of the immunized mice were detected. Results HIV-2 specific target-killing activity of spleen CTL and serum HIV-2 specific antibody level were higher in combined immunization group than those in single immunization groups (P<0.05). Conclusion The strategy of prime-boost may stimulate stronger specific celluar and humoral immune responses in mice.

Key words: gp105, vaccines, DNA, recobinant fowlpox virus, immunization strategy, prime-boost

中图分类号: 

  • R392.11