中国寄生虫学与寄生虫病杂志 ›› 1994, Vol. 12 ›› Issue (1): 60-62.

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单克隆抗体抗贾第虫作用的研究

贾克东,朱育光,卢思奇,王凤云,李桂萍,温培娥   

  1. 山东省寄生虫病防治研究所; 首都医学院寄生虫学教研室
  • 收稿日期:2017-01-06 修回日期:2017-01-06 出版日期:1994-02-28 发布日期:2017-01-06

STUDY ON THE EFFECT OF MONOCLONAL ANTIBODIES ON GIARDIA LAMBLIA IN VITRO

  • Received:2017-01-06 Revised:2017-01-06 Online:1994-02-28 Published:2017-01-06

摘要: 应用体外纯培养的贾第虫滋养体免疫BALB/c小鼠和常规杂交瘤细胞技术,制备特异的抗贾第虫单克隆抗体(1E2,1G5),以其与贾第虫滋养体相互作用,均发现具有明显的抗贾第虫效果,生长抑制率分别为35%和63.4%;将此单抗加入正常培养液中,其含量与抑制率呈现明显的剂量反应关系,相关系数分别为0.9764和0.8987;单抗经滋养体吸收后,对贾第虫的生长抑制作用消失;经补体灭活前后的豚鼠血清对单抗的抑制作用无影响。

关键词: 贾第虫, 单克隆抗体

Abstract: Monoclonal antibodies(McAbs)were generated by fusion of SP2/0 myeloma cells with spleen cells from BALB/c mice immunized with Giardia lamblia trophozoites.To define the effect of the McAb on Giardia lamblia ,trophozoites were subcultured axenically after contact with McAb for 1 h at 37℃.The McAbs 1G 5 and 1E 2(both IgG 1)were able to inhibit the growth of trophozoite at the rate of 63.4% and 35%, respectively.The inhibitory effect was decreased along with the decreasing quantity of McAb(from dilution 1∶45 to 1∶225)added to the TYI S 33 medium.The actions of McAbs could be eliminated by absorption with trophzoites and not be influenced by complement in fresh guinea pig serum,thus the actions of McAbs appeared to be specific and complement independent.

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