China Animal Husbandry and Veterinary Medicine ›› 2025, Vol. 52 ›› Issue (2): 946-958.doi: 10.16431/j.cnki.1671-7236.2025.02.043

• Basic Veterinary Medicine • Previous Articles    

Research Progress on Immune Stress of LPS

LU Rui1,2, SHENG Hui1, GUO Yanyan1,2, ZHANG Yuxin1,2, YAO Dawei1, GUO Xiaofei1,3, RUAN Weibin2, ZHANG Xiaosheng1   

  1. 1. Tianjin Animal Health Breeding Engineering Technology Center, Tianjin Key Laboratory of Animal Molecular Breeding and Biotechnology, Institute of Animal Husbandry and Veterinary Medicine, Tianjin Academy of Agricultural Sciences, Tianjin 300381, China;
    2. School of Life Sciences, Nankai University, Tianjin 300071, China;
    3. Jilin Provincial Key Laboratory of Grassland Animal Husbandry, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Changchun 130102, China
  • Received:2024-06-26 Published:2025-01-24

Abstract: In recent years,immune stress caused by lipopolysaccharide (LPS) has become a potential threat in animal husbandry production.As a common bacterial endotoxin,LPS exhibits multiple immune activities and plays a important role in immune regulation and cell signal transduction.LPS can quickly activate the immune system of animals and triggering the secretion of various inflammatory factors such as tumor necrosis factor (TNF) and interleukin-1β (IL-1β).Moderate LPS stimulation can improve the animal’s disease resistance and help it effectively fight infection and external stress.However,excessive or long-term exposure to LPS may lead to excesstive activation of the animal’s immune system,cause inflammatory diseases,and even affect its production performance and health status.At present,LPS has been widely used to establish animal models related to immune stress.A deep understanding of the impact of LPS on immune stress in different animals is crucial to animal husbandry production, and is also the key to the development of veterinary drugs in the veterinary field.The author reviews the structure and function of LPS,the commonality and difference in immune stress induced by LPS in different animals,and the measures to alleviate immune stress induced by LPS.It also summarizes the establishment methods of LPS immune stress models and their applications in diseases,and provides suggestions and prospects for future research on animal immune stress induced by LPS,aiming to provide a reference for the research of LPS and the practice of animal husbandry production.

Key words: lipopolysaccharide (LPS); immune stress; immune regulation; animal model

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