中国寄生虫学与寄生虫病杂志 ›› 1999, Vol. 17 ›› Issue (2): 11-105.

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抗微小隐孢子虫单克隆抗体免疫保护作用的研究

宗海红 1;李为明1;张雪2;俞树荣2;白班俊1

  

  1. 1 第三军医大学附属新桥医院儿科 重庆 4000372 第三军医大学微生物教研室 重庆 400037
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:1999-04-30 发布日期:1999-04-30

STUDIES ON IMMUNOPROTECTION OF MONOCLONAL ANTIBODIES AGAINST CRYPTOSPORIDIUM PARVUM

ZONG Haihong 1;LI Weiming 1;ZHANG Xue 2;YU Shurong 2;BAI Banjun 1

  

  1. 1 Department of Pediatrics, Xinqiao Hospital, Third Military Medical U niversity , Chong qing 4100372 Department of microorganism , Third Military Medical University , Chong qing 410037
  • Received:1900-01-01 Revised:1900-01-01 Online:1999-04-30 Published:1999-04-30

摘要:   目的:探讨抗隐孢子虫单克隆抗体(McAb)的免疫保护作用。方法:在细胞培养的基础上进行体外中和试验,筛选具有保护作用的McAb,并通过大鼠及MDCK细胞接种隐孢子虫子孢子(CPS)进行动物实验和受染MDCK细胞透射电镜观察证实。结果:Z3D2可显著降低CPS在大鼠肠粘膜表面定植的隐孢子虫虫体及卵囊数。可使隐孢子虫各发育期的虫体减少,使MDCK细胞的超微结构受损减轻。结论∶McAbZ3D2具有良好的保护作用。

关键词: 微小隐孢子虫, MDCK细胞, 单克隆抗体, 免疫预防

Abstract:  AIM: To explore the immune protection of the monoclonal antibody (McAb) againstCryptosporidium parvum.METHODS: On the basis of Madin Darby canine kidney (MDCK) cell culture, the immunoprotection of McAb against C.parvum was screened by means of neutralization test in vitro, and verified by rat model and transmission electron microscopy of infected MDCK cells. RESULTS: The number of C.parvum sporozoites recovered on the surface of rat intestinal epithelial cells and the mean output of oocyst were significantly reduced by McAb Z3D2 (P<0 001, P<0 05). The decreased Cryptosporidium at each development phase within infected MDCK cells and less damage of cell ultrastructure caused by Cryptosporidium were found in Z3D2 treated group. CONCLUSION: McAb Z3D2 possesses highly effective protection against C.parvum.

Key words: Cryptosporidium parvum, Madin Darby canine kidney cells, McAb, immunoprotection