中国寄生虫学与寄生虫病杂志 ›› 1999, Vol. 17 ›› Issue (2): 12-108.

• 论著 • 上一篇    下一篇

IL-6对弓形虫增殖的影响

方艳秋1;谭岩1;张永生 2;李敬3
  

  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1999-04-30 发布日期:1999-04-30

EFFECT OF IL 6 ON THE MULTIPLICATION OF TOXOPLASMA GONDII

FANG Yanqiu 1;TAN Yan 1;ZHANG Yongsheng 2;LI Jing 3

  

  1. 1 Central Lab.;First Teaching Hospital;Bethune University of Medical Sciences;Changchun 130021 2 Department of Parasitology;Bethune University of Medical Sciences;Changchun 130021 3 F
  • Received:1900-01-01 Revised:1900-01-01 Online:1999-04-30 Published:1999-04-30

摘要:   目的:观察白细胞介素-6(IL-6)对弓形虫增殖的影响。方法:以C57BL/6小鼠腹腔巨噬细胞为靶细胞,采用3H-尿嘧啶(3H-U)特异性标记的弓形虫在MΦ内的增殖实验。结果:单独应用IL-6处理MΦ,可以促进弓形虫在MΦ内的增殖,α肿瘤坏死因子(TNFα)的影响不明显;而在IL-6逆转γ干扰素(IFNγ)诱导的MΦ抗弓形虫效应的实验中发现,加入抗TNFα抗体可增加IL-6对IFNγ诱导MΦ抗弓形虫效应的逆转作用。结论:体外应用IL-6可促进弓形虫在小鼠腹腔MΦ内的增殖作用,并能部分逆转IFNγ的抗弓形虫效应。

关键词: 弓形虫, 白细胞介素-6, γ干扰素, α肿瘤坏死因子

Abstract:  AIM: To observe the effect of IL 6 on the multiplication of Toxoplasma gondii.METHODS: Peritoneal macrophages from C57BL/6 mouse were incubated with 3 H uracil labelled T.gondii in vitro . RESULTS: Pretreatment (but not post treatment) of MΦ with IL 6 enhanced T.gondii multiplication in a dose dependent manner. Pretreatment with IFNγ resulted in active killing of parasites whereas the addition of IL 6 resulted in a partial reversal of IFNγ mediated toxoplasmacidal activity. Combining TNFα with IL 6 and IFNγ pretreatment resulted in restoration of toxoplasmacidal activity. Addition of polyclonal anti TNFα antibodies to IL 6 and IFNγ pretreatment resulted in enhancement in the IL 6 mediated impairment of IFNγ function. CONCLUSION: IL 6 could enhance intraperitoneal multiplication of T.gondii and reverse IFNγ mediated toxoplasmacidal activity.

Key words: Toxoplasma gondii, IL 6, IFNγ, TNFα