中国寄生虫学与寄生虫病杂志 ›› 1999, Vol. 17 ›› Issue (6): 19-389.

• 实验研究 • 上一篇    下一篇

LIT对小鼠抗弓形虫感染的保护作用

林爱芬1;陆绍红1;陈彩华1;李思温1;陈睿1;陆漩辉2;黄富泉2
  

  1. 浙江省医学科学院寄生虫病研究所,杭州 310013;杭州大学物理系,杭州 310028
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1999-12-30 发布日期:1999-12-30

THE PROTECTIVE EFFECT AGAINST TOXOPLASMA INFECTION IN MICE IMMUNIZED WITH LASER-IRRADIATED TOXOPLASMA TACHYZOITES*

LIN Aifen1;LU Shaohong1;CHEN Caihua1;LI Siwen1;CHEN Rui1;LU Xuanhui2;HUANG Fuquan2

  

  1. 1 Institute of Parasitic Diseases;Zhejiang Academy of Medical Sciences;Hangzhou 310013 2 Physics Department;Hangzhou University;Hangzhou 310028
  • Received:1900-01-01 Revised:1900-01-01 Online:1999-12-30 Published:1999-12-30

摘要:   目的: 探讨激光照射弓形虫速殖子(LIT) 的免疫保护力及其诱导的免疫应答水平。方法: 应用4.5 WLIT免疫ICR小鼠,并用活体弓形虫速殖子攻击感染,观察LIT抗虫效果。分别用间接免疫荧光法和ELISA法测定T淋巴细胞CD4+ /CD8+ 亚群及特异性IgG抗体。结果: LIT免疫的小鼠具有抗急性弓形虫感染的能力, 能延长小鼠生存时间, 并能导致机体CD4+ 、CD4+ /CD8+ 显著升高及特异性IgG抗体产生。结论: 4.5 W LIT经腹腔免疫接种小鼠, 能诱导部分的保护性免疫力, 并能特异性地刺激小鼠产生体液免疫和细胞免疫应答

关键词: 激光照射, 弓形虫速殖子, 免疫应答

Abstract:  AIM: To observe the level of immune responses and protective immunity in mice induced by laser-irradiated Toxoplasma tachyzoites (LIT).METHODS: ICR mice were immunized with LIT. After one month, the mice were challenged with live Toxoplasma tachyzoites to observe the effect of LIT. Indirect immunofluorescence assay and ELISA were used to detect CD4+/CD8+ lymphocyte subpopulation and IgG antibody. RESULTS: Immunization with LIT could partially protect the mice from Toxoplasma infection, prolong the survival time, enhance the CD4+/CD8+ ratio and produce specific IgG antibody. CONCLUSION: Intraperitoneal injection with LIT can induce partial protective immunity and specifically elicit ICR mice to generate humoral and cell-mediated immune responses.\;

Key words: Laser-irradiation, Toxoplasma tachyzoite, immune response