中国寄生虫学与寄生虫病杂志 ›› 1998, Vol. 16 ›› Issue (4): 296-299.

• 实验报道 • 上一篇    下一篇

阴道毛滴虫致病株可溶性抗原的电泳分析

张跃; 王正祥; 吴练中; 周秀云   

  1. 扬州大学医学院
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1998-08-28 发布日期:1998-08-28

ELECTROPHORETIC ANALYSIS OF SOLUBLE ANTIGENS OF A PATHOGENIC ISOLATE OF TRICHOMONAS VAGINALIS *

Zhang Yue; Wang Zhengxiang; Wu Lianzhong; Zhou Xiuyun   

  1. Medical College of Yangzhou University; Yangzhou 225001
  • Received:1900-01-01 Revised:1900-01-01 Online:1998-08-28 Published:1998-08-28

摘要: 目的:研究阴道毛滴虫一致病分离株的全虫可溶性抗原。方法:应用SDS-PAGE、激光光密度扫描、免疫印迹法等,对阴道毛滴虫一致病虫株的全虫可溶性抗原进行分析。结果:SDS-PAGE分离出14条蛋白带,在所分离的可溶性抗原中,分子量≤72kDa的占89.5%,分子量为48-51kDa的占19.2%,>100kDa的占7.4 %,最低分子量为13kDa。免疫印迹试验显示免疫反应具有广泛性分子量范围,但在86kDa附近未显示出免疫反应。结论:在阴道毛滴虫一致病虫株全虫可溶性抗原中,分子量为48kDa蛋白质具有较高的蛋白含量和较强的免疫学反应。

关键词: 阴道毛滴虫, 抗原, SDS-PAGE

Abstract: AIM: To analyze the parasite soluble antigens of a pathogenic isolate of
Trichomonas vaginalis. METHODS: The soluble antigens of a pathogenic isolate of T.vaginalis
isolated from a patient suffered from trichomonad vaginitis was studied by means of SDS PAGE
followed by densitometric analysis and immunoblotting. RESULTS: A total of 14 distinct protein
bands was demonstrated using a 10% resolution gel concentration. Densitometrogram indicated that
the soluble antigens with MWs of equal to and below 72 kDa accounted for 89.5% of the total volume with the dominant fractions of 48- 51 kDa which accounted for 19.2%. Having MWs over 100 kDa accounted only for 7.4% , while the lowest M. W. fraction demonstrated was found to be at the site of 13 kDa. By immunoblotting, the specific anti-T. vaginalis antibodies raised in mice recognized a broad spectrum of molecular size range of these antigenic fraction. However, no immunological reaction was seen at the 86 kDa site. CONCLUSION: The proteins of MWs 48-51 KDa possess a larger protein content and a higher immunological reactivity.

Key words: Trichomonas vaginalis, antigen, SDS PAGE