›› 2009, Vol. 36 ›› Issue (11): 70-73.

• 生物技术 • 上一篇    下一篇

猪繁殖与呼吸综合征病毒NVDC-JXA1株膜基质蛋白单克隆抗体的研制

王元1,2, 胡鸿惠2,3, 秦亚曼2, 张倩2, 邓小雨2, 曹振2, 王传彬2, 冉多良1,田克恭2   

  1. (1.新疆农业大学动物医学院, 乌鲁木齐 830052;2.中国动物疫病预防控制中心, 北京 100193;3.中国农业大学动物医学院, 北京 100193)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-11-20 发布日期:2009-11-20
  • 通讯作者: 曹振

Development of Monoclonal Antibodies against Matrix Protein ofPRRSV NVDC-JXA1 Strain

WANG Yuan1,2, HU Hong-hui2,3, QIN Ya-man2, ZHANG Qian2, DENG Xiao-yu2,CAO Zhen2, WANG Chuan-bin2, RAN Duo-liang1, TIAN Ke-gong2   

  1. (1.College of Veterinary Medicine,Xinjiang Agricultural University,Urumqi 830052,China;2.China Animal Disease Control Center,Beijing 100193,China;3.College of Veterinary Medicine,China Agricultural University,Beijing 100193)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-11-20 Published:2009-11-20
  • Contact: CAO Zhen

摘要: 为制备抗猪繁殖与呼吸综合征病毒NVDC-JXA1株单克隆抗体,用纯化的猪繁殖与呼吸综合征病毒NVDC-JXA1株免疫BALB/c小鼠,最后一次免疫后第3天取其脾细胞与SP2/0细胞在聚乙二醇作用下融合,通过酶联免疫吸附试验(ELISA)和间接免疫荧光试验(IFA)筛选,以有限稀释法克隆3次,制备单克隆抗体,并对制备的单克隆抗体进行鉴定。结果表明获得了2株分泌PRRSV膜基质蛋白特异性抗体的杂交瘤细胞,命名为1D12、5H5,经鉴定其抗体亚型分别为IgG2b、IgM,2株均为κ链,腹水ELISA效价分别为1∶107和1∶105。该单克隆抗体与PRV、PPV、PCV、CSFV、JEV无交叉反应。作者成功制备了抗猪繁殖与呼吸综合征病毒NVDC-JXA1株膜基质蛋白单克隆抗体,为进一步建立相关诊断方法奠定了基础。

关键词: 猪繁殖与呼吸综合征病毒; 单克隆抗体; 膜基质蛋白

Abstract: To develop and characterize monoclonal antibody (McAb) against porcine reproductive and respiratory syndrome virus NVDC-JXA1 strain (PRRSV NVDC-JXA1 strain) for related research work.BALB/c mice were immunized conventionally with the purified virions of PRRSV NVDC-JXA1 strain.On the third day after the final immunization,spleen cells of mice fused with myeloma cells SP2/0 were filtered by culturing selectively,diluting finitely,enzyme-linked immunosorbent assay (ELISA) and IFA test,to obtain the subtypes from the clone line by ELISA test.As a result,the cell lines secreted McAbs stably by culturing in vitro and recovery tests were obtained and named as 1D12,5H5 respectively,the ELISA titers of ascites was 1∶107,1∶105 respectively.The subtypes of the two McAbs were identified as IgG2b and IgM,Kappa light chain.The two McAbs reacted specifically with only matrix protein of PRRSV but not with PRV,PPV,PCV,CSFV,JEV by indirect-ELISA.The McAbs will be very useful as specific reagents in diagnosis and control of PRRS.

Key words: PRRSV; monoclonal antibody; matrix protein

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