畜牧兽医学报 ›› 2015, Vol. 46 ›› Issue (11): 2025-2031.doi: 10.11843/j.issn.0366-6964.2015.11.015

• 预防兽医 • 上一篇    下一篇

牛肠道病毒2型单克隆抗体的制备及其应用研究

郭金玉1,张鹤晓2,吴丹2,高志强2,张冉3,张乐萃1*   

  1. (1.青岛农业大学动物科技学院,青岛 266109;2.北京出入境检验检疫局,北京 100026;3.北京森康生物技术开发有限公司,北京101400)
  • 收稿日期:2015-03-27 出版日期:2015-11-23 发布日期:2015-11-23
  • 通讯作者: 张乐萃,E-mail:lczhang@qau.edu.cn
  • 作者简介:郭金玉(1989-),女,山东临清人,硕士生,主要从事动物检验检疫研究, E-mail:guojinyu.86@163.com
  • 基金资助:

    国家质检总局科研项目(2013IK026)

Preparation and Application of the Monoclonal Antibodies against Bovine Enterovirus Type 2

GUO Jin-yu1, ZHANG He-xiao2,WU Dan2,GAO Zhi-qiang2,ZHANG Ran3,ZHANG Le-cui1*   

  1. (1.Animal Science and Technology College,Qingdao Agricultural University,Qingdao 266109,China;2.Beijing Entry-exit Inspection and Quarantine Bureau,Beijing 100026,China;3.Beijing Senkang Biotech Development Co.Ltd.,Beijing 101400,China)
  • Received:2015-03-27 Online:2015-11-23 Published:2015-11-23

摘要:

旨在制备牛肠道病毒2型(BEV-2)单克隆抗体,建立检测BEV-2抗原的ELISA方法。将纯化的BEV-2 VP1+重组蛋白质接种BALB/c小鼠,取其脾淋巴细胞与骨髓瘤细胞SP2/0用PEG4000进行融合,对杂交瘤培养上清进行筛选,获得2株稳定分泌抗BEV-2 VP1+蛋白的单克隆抗体的杂交瘤细胞株(1G1、5G6)。用制备的单克隆抗体包被酶标板,通过一系列的优化,建立了BEV-2双抗夹心ELISA检测方法。建立的ELISA方法检测BEV-2病毒量的最低限为100 TCID50•0.1 mL-1,与BVDV、IBRV、BLV等病毒无交叉反应。本研究首次制备了牛肠道病毒2型单克隆抗体,建立了检测BEV-2抗原的双抗体夹心ELISA方法,该方法特异性强、敏感性高、重复性好,为进一步研究和开发快速诊断牛肠道病毒试剂盒奠定了基础。

Abstract:

The study was aimed to prepare monoclonal antibody against BEV-2 and develop ELISA for the detection of antigen of bovine enterovirus type 2 (BEV-2) based on the monoclonal antibody.The purified BEV-2 VP1+ recombinant protein was used to immunize BALB/c mice,of which splenocytes were fused with SP2/0 cells by PEG4000.The selection of positive hybridomas was conducted.Two hybridomas (designated as 1G1 and 5G6) secreting monoclonal antibodies(mAb) against BEV-2 VP1+ protein were selected.Based on the monoclonal antibodies against BEV-2,a sandwich ELISA was established to detect BEV-2 through a series of optimization.The sensitivity of the sandwich ELISA was 100 TCID50•0.1 mL-1,and this method had no cross-reaction with BVDV,IBRV and BLV.The results showed that the sandwich ELISA was specific,sensitive and reproducible.This is the first domestic report of establishment of sandwich ELISA for the detection of BEV-2 based on the preparation of the monoclonal antibodies,and it provided a basis for development of kit for rapid diagnosing BEV-2.

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