中国畜牧兽医

• 生物技术 • 上一篇    下一篇

猪流感病毒LAMP检测方法的建立

张莉,鄢明华,李秀丽,路超,王利丽,韩伟,孙英峰   

  1. (天津市畜牧兽医研究所,天津  300112

  • 收稿日期:2014-01-02 出版日期:2014-07-20 发布日期:2014-08-21
  • 通讯作者: 鄢明华,男,从事动物疾病诊断与防治技术研究。E-mail:yanmh81971@126.com;Tel:022-27798379
  • 作者简介:张莉(1979—),女,河北人,硕士,副研究员,研究方向:动物疾病分子诊断技术。
  • 基金资助:

    天津市科技支撑计划重点项目(10ZCZDNC02800);天津市应用基础及前沿技术研究计划(12JCYBJC20100)。

Establishment of Loop-mediated Isothermal Amplification for Detection of Swine Influenza Virus

ZHANG Li,YAN Ming-hua,LI Xiu-li,LU Chao,WANG Li-li,HAN Wei,SUN Ying-feng   

  1. (Tianjin Insititute of Animal Hushandry and Veterinary SciencesTianjin 300112China)

  • Received:2014-01-02 Online:2014-07-20 Published:2014-08-21

摘要: 本试验针对猪流感病毒(swine influenza virus,SIV)NP基因保守区域设计并合成6条引物,建立了SIV的环介导等温扩增(LAMP)检测方法,并进行了特异性、敏感性和重复性试验。结果显示,该方法可特异性检测H1N1、H1N2、H3N2、类禽H1N1亚型SIV及甲型H1N1流感病毒,但不能检测猪繁殖与呼吸综合征病毒、猪细小病毒、猪瘟病毒、猪伪狂犬病病毒、猪圆环病毒2型、日本乙型脑炎病毒;该方法的最低检测量为100拷贝/μL质粒DNA。结果表明建立的LAMP方法具有较高的敏感性和特异性,可用于SIV的快速检测。

关键词: 猪流感病毒; 环介导等温扩增; 检测

Abstract: The objective of this study was to establish a loop-mediated isothermal amplification(LAMP) method for swine influenza virus (SIV). Six primers were designed according to the SIV NP gene sequence. Then specificity, sensitivity and reproducibility of the test were carried out. In the results, the developed system was specific for the detection of H1N1, H1N2, H3N2, avian-like H1N1 subtype SIV and H1N1 subtype influenza A, there was no cross-reactivity with porcine reproductive and respiratory syndrome virus, porcine parvovirus, classical swine fever virus, pseudorabies virus, porcine circovirus type 2 and Japanese encephalitis virus. The sensitivity of this assay was 100 copies/μL plasmid DNA. These results showed that LAMP method had higher sensitivity and specificity, and could be used for the detection of SIV.

Key words: swine influenza virus; loop-mediated isothermal amplification; detection