中国血吸虫病防治杂志 ›› 2016, Vol. 28 ›› Issue (2): 196-198.

• 实验研究 • 上一篇    下一篇

抗日本血吸虫可溶性虫卵抗原IgY的制备及初步应用

吴凯1,徐明星1*,杨燕1,周水茂1,雷家慧2,刘文琪2   

  1. 1 湖北省武汉市疾病预防控制中心血吸虫病与地方病防治所; 2 华中科技大学同济医学院病原生物学系
  • 出版日期:2016-04-19 发布日期:2016-04-20
  • 通讯作者: 徐明星
  • 作者简介:吴凯, 男, 硕士, 主管技师。研究方向: 寄生虫病防治
  • 基金资助:
    2013-2014年度湖北省卫生厅血吸虫病防治科研项目 (XF2012-31)

Preparation of anti-SEA egg yolk immunoglobulin and its preliminary application

WU Kai 1 , XU Ming-xing1* , YANG Yan1 , ZHOU Shui-mao1 ,LEI Jia-hui 2 , LIU Wen-qi 2   

  1. 1 Department of Schistosomiasis and Endemic Diseases,Wuhan Center for Disease Control and Prevention,Hubei Province,Wu? han 430015,China;2 Department of Parasitology,Tongji Medical College, Huazhong University of Science and Technology, China
  • Online:2016-04-19 Published:2016-04-20
  • Contact: XU Ming?xing

摘要: 目的 目的 制备抗日本血吸虫可溶性虫卵抗原 (Soluble egg antigen, SEA) 鸡卵黄免疫球蛋白 (Egg yolk immunoglobu? lin, IgY), 探讨其应用于血吸虫病流行区查病的可行性。 方法 方法 在血吸虫病流行区采集间接红细胞凝集试验 (IHA) 阳性 者尿液, 在非流行区采集健康人尿液。以SEA经皮下注射免疫莱杭母鸡获得anti?SEA IgY, 以十二烷基磺酸钠?聚丙烯酰 胺凝胶电泳 (SDS?PAGE) 测定其相对分子量; 并以anti?SEA IgY作为捕捉抗体, 采用双抗体夹心法ELISA检测IHA阳性者 和健康人尿液中的血吸虫循环可溶性虫卵抗原 (Circulating soluble egg antigen, CSEA)。 结果 结果 成功制备并纯化anti? SEA IgY。共检测IHA阳性者尿液48份, 在尿液中检出CSEA阳性26例, 检出率为54.17%; 检测健康人尿液10份, 均为阴 性。 结论 结论 基于IgY的免疫诊断技术可有效检出人尿液中CSEA, 其作为一种便捷、 无创伤的新方法可应用于血吸虫病 查病工作中。

关键词: 血吸虫病, 循环抗原, 卵黄免疫球蛋白, 尿液, 免疫诊断

Abstract: Objective Objective To prepare the egg yolk immunoglobulin(IgY)against soluble egg antigen(SEA)of Schistosoma ja? ponicum,and explore its feasibility for schistosomiasis screening in endemic areas. Methods Methods The urine samples of indirect haemagglutination test(IHA)positives from endemic areas and healthy people from non?endemic areas were collected. The Anti? SEA IgY was obtained through immunization by subcutaneous injection of SEA into Laihang hen,and its molecular weight was determined by SDS polyacrylamide gel electrophoresis(SDS?PAGE) . The circulating soluble egg antigen(CSEA)in the urine of IHA positives and healthy people were detected by ELISA?double antibody sandwich method with the Anti?SEA IgY as the cap? ture antibody. Results Results Anti?SEA IgY was prepared and purified successfully. Totally 48 urine samples of IHA positives were detected by ELISA and 26 of them were CSEA positives(54.17%);10 urine samples of healthy people were detected,and all of them were negative. Conclusions Conclusions The CSEA in human urine can be detected effectively by ELISA based on IgY. As a conve? nient and atraumatic method,it could be applied in schistosomiasis screening.

Key words: Schistosomiasis, Circulating antigen, IgY, Urine, Immunodiagnosis

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