中国寄生虫学与寄生虫病杂志 ›› 2001, Vol. 19 ›› Issue (4): 6-216.

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用聚丙烯酰胺凝胶电泳和双向电泳分析阴道毛滴虫滋养体抗原

高兴政;谭荣安
  

  1. 北京大学基础医学院寄生虫学教研室!北京100083(高兴政);香港大学生物化学系(谭荣安)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2001-08-30 发布日期:2001-08-30

Antigen Analysis of Trichomonas vaginalis Trophozoite by SDS-PAGE and Two-Dimensional Gel Electrophoresis

GAO Xing-zheng1;Joseph Wing On Tam2   

  1. 1 Department of Parasitology;School of Basic Medical Sciences;Peking University;Beijing 100083; 2 Department of Biochemistry;University of Hong Kong;Hong Kong
  • Received:1900-01-01 Revised:1900-01-01 Online:2001-08-30 Published:2001-08-30

摘要:   目的 研究阴道毛滴虫滋养体可溶性抗原。 方法 用聚丙烯酰胺凝胶电泳 (SDS- PAGE)、酶联免疫电转移印迹 (EITB)和双向电泳等方法 ,对阴道毛滴虫滋养体全虫可溶性抗原进行分析。 结果  SDS- PAGE分离出 2 6条蛋白带 ,其中主带 9条 ,分子量 8条为 15~ 6 2 k Da、1条为 97k Da。EITB显示 2 4条带 ,仅在 75 k Da和2 2 k Da处缺如 ,其中主带 8条。双向电泳分离出 43个多肽斑点 ,多分布于 PI3.6 5~ 5 .84,分子量为 2 7~ >10 0k Da,其中有 9个主要多肽斑点。 结论 阴道毛滴虫滋养体可溶性抗原 2 6条蛋白带中 ,有 8条蛋白含量较高、免疫学反应较强。在 43个多肽斑点中有 9个多肽含量明显较高。

关键词: 阴道毛滴虫, 抗原, SDS-PAGE, 双向电泳

Abstract:

 Objective To analyze soluble antigens of Trichomonas vaginalis. \ Methods\ Soluble antigens of the parasite from a patient suffering from trichomonad vaginitis were analyzed by SDS-PAGE, immunoblotting and two-dimensional gel electrophoresis. \ Results\ A total of 26 distinct protein bands were demonstrated by using 10% resolution gel. Nine of them were main bands, eight with MWs 15-62 kDa, one with MW 97 kDa. By immunoblotting the specific anti-T. vaginalis antibodies raised in rabbit recognized 24 protein bands with 8 main bands in them. Two-dimensional gel electrophoresis revealed up to 43 individual trichomonad polypeptide spots, among which, 9 were main ones. The pI and MWs of these spots were 3.65-5.84 and 27->100 kDa respectively. \ \{Conclusion\ Eight\} protein bands out of 26 soluble antigen bands of the parasite showed high immunogenicity. There were 9 main polypeptide spots in 43 polypeptide spots of the parasite.

Key words: Trichomonas vaginalis, antigen, SDS-PAGE, two-dimensional gel electrophoresis.