China Animal Husbandry and Veterinary Medicine ›› 2020, Vol. 47 ›› Issue (4): 1199-1208.doi: 10.16431/j.cnki.1671-7236.2020.04.026

• Preventive Veterinary Medicine • Previous Articles     Next Articles

Research Progress of Genetic Engineering Recombinant Lactic Acid Bacteria on Epidemic Prevention and Control of Animal Diseases

LIU Naizhi1, QI Xiuye1, GUO Yangli1, CHENG Fuliang1, XU Haiyan1, GU Wei1, SHAN Baolong1, WANG Chunfeng2   

  1. 1. Shandong Provincial Key Laboratory of Animal Micro-Ecological Agent, Shandong BaoLai-LeeLai Bioengineering Co., Ltd., Tai'an 271000, China;
    2. Jilin Provincial Engineering Research Center of Animal Probiotics, College of Animal Science and Technology, Jilin Agricultural University, Changchun 130118, China
  • Received:2019-07-03 Online:2020-04-20 Published:2020-04-17

Abstract: Most infectious pathogens enter the host through the mucosal surface.Therefore,besides the traditional vaccines that induce systemic immunity,mucosal vaccination should also be developed to establish the first line of defense at the mucosal invasion site to eliminate pathogens.Lactic acid bacteria are common probiotics in the intestines of humans and most animals,and have the functions of nutrition,immunity and anti-infection.Since 1990s,lactic acid bacteria have been used to express exogenous genes as food-grade carriers.The ability of lactic acid bacteria to elicit an immune response against expressed foreign antigens has led to their function as potential mucosal vaccine candidates.Lactic acid bacteria as vaccine vectors have many attractive advantages:Simple,noninvasive administration (usually oral or intranasal),the acceptance and stability of genetic modifications,expression of protein without purification,relatively low cost,and the highest level of safety possible,long-term survival in the body and continuous expression of foreign proteins,a single vaccination can produce a lasting immune response,and so on.At present,lactic acid bacteria as the normal bacterial group are selected as the carriers,and the recombinant lactic acid bacteria have been rapidly developed in many fields,such as,bacteria,viruses,parasites,etc.,and they have achieved significant effects in the corresponding disease models.This paper reviewed the preparation of genetically engineered recombinant lactic acid bacteria and the research progress in the prevention and control of animal diseases in the past five years.

Key words: lactic acid bacteria; genetic engineering; recombinant

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