中国寄生虫学与寄生虫病杂志 ›› 2006, Vol. 24 ›› Issue (6): 12-456.

• 实验研究 • 上一篇    下一篇

堆型艾美球虫子孢子单克隆抗体的制备及鉴定

王承民1;何宏轩2;秦建华3;陈桂香1;郭其祯4;杭柏林1   

  1. 1 河南科技学院细胞工程重点实验室, 新乡 453003; 2 中国科学院动物研究所, 北京 100080; 3 河北农业大学动物科技学院,保定 071001; 4 河南省新乡市畜牧局, 新乡 453003
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-12-30 发布日期:2006-12-30
  • 通讯作者: 王承民

Preparation and Identification of Monoclonal Antibody Against Sporozoites of Eimeria acervulina

WANG Cheng-min1 ;HE Hong-xuan2;QIN Jian-hua3;CHEN Gui-xiang1;
GUO Qi-zhen4;HANG Bo-lin1
  

  1. 1 Cell Engineering Key Laboratory of Henan Institute of Science and Technology,Xinxiang 453003, China; 2 Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, China; 3 Animal Science and Technology School of Hebei Agricultural University,Baoding 071001, China; 4 Animal Husbandry Bureau of Xinxiang,Xinxiang 453003, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-12-30 Published:2006-12-30
  • Contact: WANG Cheng-min

摘要: 目的 建立堆型艾美球虫(Eimeria acervulina)子孢子表面抗原的杂交瘤细胞株。 方法 使用纯化的堆型艾美球虫子孢子直接免疫BALB/c小鼠,采用杂交瘤技术建立细胞株,制备单克隆抗体。用ELISA确定单克隆抗体的交叉反应性、相对亲和力、免疫球蛋白的类型和亚类,并对单克隆抗体进行鉴定。 结果 获得4株可稳定分泌单克隆抗体的杂交瘤细胞株,其中Easp-3G3、Easp-5G10为IgG1 类,Easp-3H6为IgG2b 类,Easp-5H4为IgG2a 类。4株单克隆抗体均能与堆型艾美球虫子孢子的抗原蛋白反应,但仅Easp-5H4能与柔嫩艾美球虫子孢子抗原蛋白反应。Easp-3G3和Easp-5G10与另外2种单克隆抗体的识别位点不同,而Easp-3G3与Easp-5G10、Easp-3H6与Easp-5H4的识别位点相近。 结论 制备了4株堆型艾美球虫子孢子单克隆抗体。

关键词: 堆型艾美球虫, 子孢子, 单克隆抗体, 鉴定

Abstract: Objective To establish hybridoma cell lines against sporozoites of Eimeria acervulina. Methods BALB/c mice were immunized with purified sporozoites of E. acervulina. Hybridoma cell lines were set up by using hybridoma technique, and monoclonal antibodies were prepared. The monoclonal antibody was identified by determining their cross reactivity, relative affinity, immunoglobulin class or subclass with enzyme linked immunosorbent assay (ELISA). Results Four hybridoma cell lines stably secreting McAbs against sporozoites were obtained: Easp-3G3 and Easp-5G10 belonging to IgG1, Easp-3H6 belonging to IgG2b, Easp-5H4 belonging to IgG2a. All four McAbs bound with E. acervulina sporozoite protein, but the Easp-5H4 McAb showed cross reactivity with E. tenellum sporozoite protein. Different antigenic epitopes were recognized by Easp-3G3 or Easp-5G10 and Easp-3H6 or Easp-5H4. Conclusion Three of the four produced monoclonal antibodies show high specificity and affinity to the Eimeria acervilina sporozoites.

Key words: Eimeria acervulina, Sporozoite, Monoclonal antibody, Identification