中国寄生虫学与寄生虫病杂志 ›› 2005, Vol. 23 ›› Issue (3): 4-145.

• 论著 • 上一篇    下一篇

以重组蛋白为抗原的ELISA法检测旋毛虫抗体

牛廷献1;潘菲菲2;刘明远3;卢强3;付宝权3;Pascal Boireau4   

  1. 1 兰州军区总医院动物实验科, 兰州 730050;2 兰州军区五里铺干休所, 兰州 730050;3 解放军军需大学军事兽医系, 长春 130062;4 法国食品卫生安全局, 法国巴黎 94703
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2005-06-30 发布日期:2005-06-30

Detection of Anti-Trichinella spiralis Antibody by Indirect ELISA Using Recombinant Protein as Antigen

NIU Ting-xian;PAN Fei-Fei;LIU Ming-yuan;LU Qiang;FU Bao-quan;Pascal Boireau   

  1. Lanzhou General Hospital of PLA, Lanzhou 730050, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2005-06-30 Published:2005-06-30

摘要: 目的 寻求特异性强、敏感性高的旋毛虫病诊断抗原。 方法 以旋毛虫新生幼虫期特异性T668基因在E.coli高效表达的重组蛋白为抗原,分别以兔、猪和健康者血清及旋毛虫病阳性血清为一抗,以辣根过氧化物酶(HRP)标记的山羊抗兔IgG、山羊抗猪IgG和山羊抗人IgG为二抗,建立检测旋毛虫抗体的间接ELISA方法,并以旋毛虫肌幼虫排泄?鄄分泌(ES)抗原作为检测对照。 结果 以T668重组蛋白为抗原,对兔、猪和人旋毛虫病血清进行检测,阳性检出率为100 %,且敏感性高(0.016 μg / 孔),与ES抗原检测结果完全一致。 结论 T668重组抗原有望替代ES抗原检测旋毛虫抗体。

关键词: 旋毛虫, 重组蛋白, 新生幼虫期特异性基因, 间接ELISA

Abstract: Objective To study the specificity, sensitivity of diagnostic antigen for Trichinella spiralis(T. s). Methods T668 recombinant protein from highly efficient expression of newborn larvae stage-specific gene of T. s in E. coli as diagnostic antigen. By using negative and positive sera from rabbit, pig, human as the first antibody, and goat-anti-rabbit IgG, goat-anti-pig IgG, goat-anti-human IgG labeled with HRP as the secondary antibody, indirect ELISA method was established for detecting anti-T.s antibody, while excretory-secretory (ES) antigen of T.s muscle larvae was used as control. Results Sera from rabbit, pig and human were detected by T668 recombinant protein as antigen, which showed a positive rate of 100% with 0.016 μg/well. There was no difference on the results between the T668 recombinant antigen and the ES antigen for diagnosing T. s-infection. Conclusion The T668 recombinant antigen is promising in substituting ES antigen in the detection of anti-T. s antibody.

Key words: Trichinella spiralis, Recombinant protein, Newborn larvae (NBL) stage-specific gene, Indirect ELISA