China Animal Husbandry and Veterinary Medicine ›› 2022, Vol. 49 ›› Issue (8): 3190-3199.doi: 10.16431/j.cnki.1671-7236.2022.08.035

• Preventive Veterinary Medicine • Previous Articles     Next Articles

Recent Advances of Pathogens Detection Based on CRISPR-Cas System

ZHANG Qingxun1,2, ZHONG Zhenyu1,2, GUO Qingyun1,2, HE Hongxuan3, BAI Jiade1,2   

  1. 1. Beijing Milu Ecological Research Center, Beijing 100076, China;
    2. Beijing Biodiversity Conservation Research Center, Beijing 100076, China;
    3. Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
  • Received:2022-01-05 Online:2022-08-05 Published:2022-07-21

Abstract: Development of rapid,specific and sensitive detection method for emerging and re-emerging zoonosis and animal disease is critical for disease surveillance,prevention and control.CRISPR-Cas system,characterized by their sensitivity,specificity,and scalability upon DNA and RNA recognition,have been repurposed for the new generation of molecular diagnostic tools and are highly applied for pathogens detection.In the COVID-19 pandemic,CRISPR-Cas based SARS-CoV-2 detection kits (SHERLOCK and DETECTR) have been approved by USA,and CRISPR-Cas12 based SARS-CoV-2 detection kit developed in China has also been approved for marketing,implying that CRISPR-Cas assisted detection method could have a lot of uses in the future.This review firstly introduces the classification of CRISPR-Cas systems,especially CRISPR-Cas9/Cas12/Cas13,which are commonly used for pathogen detection. It also introduces the mechanism and the wider applications of CRISPR-Cas system. Meanwhile,the paper analyses the key technical issues in the development of CRISPR-Cas detection platform including sequence conservation of target genes,target enrichment and amplification,pathogens sensing with different signal readouts,and discusses the future development and application prospect of this method.

Key words: CRISPR-Cas system; pathogens detection; diagnosis; application

CLC Number: