中国寄生虫学与寄生虫病杂志 ›› 2006, Vol. 24 ›› Issue (4): 20-320.

• 研究简报 • 上一篇    下一篇

ELISPOT检测HLA-A*0201转基因小鼠对恶性疟原虫红前期候选抗原的CTL应答

钱锋;张青锋;沈璐辉;潘卫庆   

  1. 第二军医大学病原生物学教研室, 上海 200433
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-08-30 发布日期:2006-08-30
  • 通讯作者: 潘卫庆

CTL Response to Pre-erythrocytic Stage Vaccine Candidate of Plasmodium falciparum in HLA-A*0201 Transgenic Mice Detected by ELISPOT Assay

QIAN Feng;ZHANG Qing-feng;SHEN Lu-hui;PAN Wei-qing   

  1. Department of Etiological Biology,the Second Military Medical University,Shanghai 200433,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-08-30 Published:2006-08-30
  • Contact: PAN Wei-qing

摘要: 用恶性疟原虫红前期多表位候选抗原PfCP-3tcl(含有1个HLA A*0201限制的CTL表位YLNKIQNSL)免疫人白细胞抗原复合体(HLA)A*0201(HLA-A*0201)转基因小鼠,再用鼠γ干扰素(IFN-γ)酶联免疫吸附斑点法(ELISPOT)检测该转基因小鼠特异性CTL应答,尝试在转基因实验动物中建立评价恶性疟原虫红前期候选抗原CTL应答的方法。结果显示该候选抗原中含有的CTL表位在转基因小鼠体内激发出了特异性的CTL应答,表明该CTL表位在转基因小鼠体内能够正确地加工和递呈。

关键词: 疫苗, 恶性疟, 红细胞前期, 细胞毒T淋巴细胞, ELISPOT检测

Abstract: The importance of cytotoxic T-lymphocyte(CTL)against malaria parasite in pre-erythrocytic stage has been presented in relevant researches. In order to investigate whether one CTL epitope(YLNKIQNSL)involved in a chimeric pre-erythrocytic stage vaccine candidate of Plasmodium falciparum which was expressed and purified in the laboratory can stimulate in vivo CTL response,HLA-A*0201 transgenic mice were immunized with this vaccine candidate. Enzyme-linked immunosorbent spot(ELISPOT)assay was performed on the splenocytes from the immunized transgenic mice. Positive result indicated that this CTL epitope can be in vivo processed and correctly presented.

Key words: Plasmodium falciparum, Vaccine, Pre-erythrocytic stage, CTL, ELISPOT assay