中国农业科学 ›› 2012, Vol. 45 ›› Issue (15): 3176-3181.doi: 10.3864/j.issn.0578-1752.2012.15.020

• 兽医 • 上一篇    下一篇

鹿慢性消耗性疾病免疫组织化学检测方法的建立与优化

 张鑫鑫, 刘焕奇, 刘雨田, 孙成友, 迟田英, 于小静, 邓明义, 王志亮   

  1. 1.青岛农业大学动物科技学院,山东青岛 266109,中国
    2.中国动物卫生与流行病学中心,山东青岛 266032,中国
    3.美国农业部外来动物疫病诊断实验室,纽约 11944-0848,美国
  • 收稿日期:2011-10-19 出版日期:2012-08-01 发布日期:2012-05-23
  • 通讯作者: 通信作者刘焕奇,Tel:15954893282;E-mail:huanqiliu@126.com;通信作者王志亮,Tel:0532-87839188;E-mail:zlwang111@yahoo.com.cn
  • 作者简介:张鑫鑫,E-mail:ZXX19871234@163.com
  • 基金资助:

    国家公益性行业(农业)科研专项(200903037)

Establishment and Optimization of Immunohistochemistry Assay for Detection of Chronic Wasting Disease

 ZHANG  Xin-Xin, LIU  Huan-Qi, LIU  Yu-Tian, SUN  Cheng-You, CHI  Tian-Ying, YU  Xiao-Jing, DENG  Ming-Yi, WANG  Zhi-Liang   

  1. 1.青岛农业大学动物科技学院,山东青岛 266109,中国
    2.中国动物卫生与流行病学中心,山东青岛 266032,中国
    3.美国农业部外来动物疫病诊断实验室,纽约 11944-0848,美国
  • Received:2011-10-19 Online:2012-08-01 Published:2012-05-23

摘要: 【目的】在自主研制的抗鹿朊蛋白单克隆抗体基础上,建立和优化了鹿慢性消耗性疾病(chronic wasting disease, CWD)的免疫组织化学(immunohistochemistry, IHC)诊断方法。【方法】按照常规石蜡病理切片制作方法制备阴性和阳性切片,应用ABC法对获得的5株单抗进行免疫组织化学检测。【结果】试验结果表明,5株单抗(编号分别为5A5、3B2、6D12、5E3、1F5)中只有5E3和3B2可以与CWD的阳性鹿延髓切片发生特异性免疫反应,而且5E3的反应较强烈,3B2的反应较弱,其它3株单抗则在试验的浓度范围内无特异性免疫反应。此外,5E3的稀释比例为1:10 000时,免疫反应效果达到最佳状态。【结论】实验结果表明,单抗5E3可以用于我国CWD的监测。

关键词: 鹿, 鹿慢性消耗性疾病, 单抗, 免疫组织化学

Abstract: 【Objective】The purpose of this study is to establish and optimize immunohistochemical assay for detection of chronic wasting disease (CWD) based on the monoclonal antibodies (McAbs) against Elk cellular prion protein which were independently developed by China Animal Health and Epidemiology Center. 【Method】Negative and positive slices were made by conventional paraffin method,and ABC method of IHC was used to detect the 5 McAbs.【Result】The results indicated that only two (No. 5E3 and 3B2) from 5 McAbs (No. 5A5, 3B2, 6D12, 5E3 and 1F5, respectively ) could be used for the immunohistochemical  detection of positive spinal cord section of Elk. It was showed strong specific immunoreactivity with cervid abnormal prion protein by 5E3 and weak specific immunoreactivity by 3B2. There was no any immunoreactivity by other McAbs with various experimental concentrations. Additionally, the best immunoreactivity was present when McAb 5E3 was used at 1/10000 dilution. 【Conclusion】The study demonstrated that 5E3 can be used in national surveillance of CWD.

Key words: elk, chronic wasting disease, monoclonal antibodies, immunohistochemistry