当前位置: 首页 > 文章 > 双抗体夹心ELISA检测羊肠道病毒抗原方法的建立及病原流行病学调查 中国兽医学报 2017,37 (4) 653-657
Position: Home > Articles > Development of a sandwich ELISA for detection of CEV antigen and epidemiological investigation Chinese Journal of Veterinary Science 2017,37 (4) 653-657

双抗体夹心ELISA检测羊肠道病毒抗原方法的建立及病原流行病学调查

作  者:
鲁海冰;胡俊英;张群;王浴光;郭昌明;朱利塞;涂长春;王新平
单  位:
吉林大学动物医学学院;军事医学科学院军事兽医研究所
关键词:
羊肠道病毒;CEV-JL14;VP1;双抗体夹心ELISA
摘  要:
应用本实验室分离的国内首株羊肠道病毒(CEV)-JL14VP1重组蛋白制备的兔源多克隆抗体和抗CEV-JL14病毒的单克隆抗体,建立了检测CEV抗原的双抗体夹心ELISA方法,并对吉林省和内蒙古地区羊群感染CEV进行了病原流行病学调查。方阵试验确定了CEV VP1鼠源IgG捕获抗体的最佳包被量为0.2μg/孔,酶标抗体的最佳稀释倍数为1∶1 000。对大量CEV阴性粪便样品进行检测与统计学处理,确定了双抗体夹心ELISA检测CEV的判定标准为样品D490值≥0.216判定为阳性。特异性、敏感性和重复性试验结果表明,所建立的检测CEV抗原方法具有特异、敏感、快速和重复性好等特点。以建立的双抗体夹心ELISA方法,对吉林省和内蒙古不同地区的羊群粪便样品进行了检测,发现不同地区的羊群都存在着严重的CEV感染,感染率高达12%~100%。本研究为今后CEV感染的诊断、检疫及防制提供了有效的手段和流行病学理论依据。
译  名:
Development of a sandwich ELISA for detection of CEV antigen and epidemiological investigation
作  者:
LU Hai-bing;HU Jun-ying;ZHANG Qun;WANG Yu-guang;GUO Chang-ming;ZHU Li-sai;TU Chang-chun;WANG Xin-ping;College of Veterinary Medicine,Jilin University;Institute of Military Veterinary,Academy of Military Medical Sciences;Key Laboratory for Zoonosis of Ministry of Education,Jilin University;
关键词:
caprine enterovirus;;CEV-JL14;;VP1;;double antibody sandwich ELISA
摘  要:
Enterovirus infection in sheep/goat is an emerging infectious disease worldwide,which poses a severe threat to the development of sheep/goat industry.In this study,we reported the development of a double antibody sandwich ELISA for detecting caprine/ovine enterovirus antigens using the antibodies generated against the recombinant proteins VP1 of caprine enterovirus JL14(CEV-JL14),and investigated the CEV infections in sheep/goat herds in Jilin province and Inner Mongolia Automonous region.The concentrations of coating-antibody and HRP-conjugated antiVP1 were optimized using square matrix titrimetry.The criterion for sandwich ELISA was determined and sample was assessed as positive when its D490≥0.216.The established ELISA had high sensitivity,specificity and simplicity.Epidemiological survey demonstrated that CEV infection in sheep/goat herds in Jilin province and Inner Mongolia Automonous region was up to 12%-100%.The findings in this study will provide a sensitive,specific,simple and rapid antigen detection method for diagnosis and epidemiologic survey of CEV infection,and an invaluable data for prevention and control of this emerging infectious diseases.

相似文章

计量
文章访问数: 7
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊