Biotechnology Bulletin ›› 2018, Vol. 34 ›› Issue (10): 64-70.doi: 10.13560/j.cnki.biotech.bull.1985.2018-0412

• Orginal Article • Previous Articles     Next Articles

Research and Prospect of Loop-mediated Isothermal Amplification Assay as a Rapid Gene Screening Method

YUAN Xiang-fen1, LÜ Ji-zhou1, WU Shao-qiang1, WANG Qiao-li2, ZHAO Hong2   

  1. 1. Institute of Animal Quarantine,Chinese Academy of Inspection and Quarantine,Beijing 100176;
    2. Central Hospital of Qingdao,Qingdao 266042
  • Received:2017-05-02 Online:2018-10-26 Published:2018-11-07

Abstract:

Loop-mediated isothermal amplification(LAMP)is a novel diagnostic technique requiring only simple isothermal heating device to efficiently amplify the targeted specific genes. Due to the high sensitivity and fastness,LAMP has showed to be a potential gene diagnostic tool since its discovery. In recent years,this technology is widely adopted in molecular diagnostics,involving the detection of bacteria,viruses,parasites,animal and plant GMO inspection and other food component determination. More and more researchers regard LAMP as an alternative method instead of PCR for clinical gene diagnosis. However,the lacking of normalized upstream and downstream technologies,such as fast nucleic acid extraction,ideal reaction systems,effective measures against cross contamination,portable detection devices and so on,leads to significant obstacles in its application for on-site diagnosis. To better meet the need of fast detection,many researches targeting to resolve the above associated problems have get primary results. In this article,we define LAMP as an early screening technique according to the demands of rapid clinical diagnosis. Further,we review the current research status and the limit of the related technologies involving fast nucleic acid extraction,optimized detection solutions,avoidance of false-positive results,re-check and determination of the results,the platform of field LAMP performance,and prospect the future technology development and application,aiming at highlighting the future research and development and promoting the constant improvement and clinical application of LAMP.

Key words: loop-mediated isothermal amplification, early screening technique, on-site diagnosis