Acta Veterinaria et Zootechnica Sinica ›› 2022, Vol. 53 ›› Issue (10): 3335-3344.doi: 10.11843/j.issn.0366-6964.2022.10.007

• REVIEW • Previous Articles     Next Articles

Recent Advances in Engineering Avian Herpesviruses by CRISPR/Cas9-based Gene Editing Technology

LUO Jun1,2, LIU Jinling1,2, ZHENG Luping1,2, LUO Qin3, TENG Man1,2*   

  1. 1. Key Laboratory of Henan Animal Immunology, Ministry of Agriculture and Rural Affairs of China & Henan Provincial Key Laboratory of Animal Immunology, Key Laboratory of Animal Immunology, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China;
    2. UK-China Centre of Excellence for Research on Avian Diseases, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China;
    3. College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, China
  • Received:2021-11-11 Online:2022-10-23 Published:2022-10-26

Abstract: CRISPR/Cas9-based gene editing technology, the newest generation of gene-editing technique, can target and edit nearly any kind of genes mediated by a single guide RNA (gRNA) to realize the direct genomic deletions, mutations, and/or insertions. In recent years, the application of CRISPR/Cas9 system in the large genomes of DNA viruses, especially in those of herpesviruses, has become the latest international research hotspot. Since the first report that using CRISPR/Cas9 system to edit avian herpesvirus genome such as Marek's disease virus (MDV) in 2016, this technology has been widely applied in editing the viral protein-coding genes and non-coding RNA genes, constructing gene knocked-out or recombinant vaccines, antiviral therapy as well as disease resistant breeding in recent five years. Herein, this paper reviewed the latest progresses on CRISPR/Cas9 gene editing-mediated avian herpesvirus gene function studies and vaccine developments. The prospect of CRISPR/Cas9-based gene editing is also discussed for providing important reference for future virology research.

Key words: CRISPR/Cas9, gene editing, avian herpesvirus

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