China Animal Husbandry & Veterinary Medicine ›› 2025, Vol. 52 ›› Issue (7): 3429-3439.doi: 10.16431/j.cnki.1671-7236.2025.07.041

• Basic Veterinary Medicine • Previous Articles     Next Articles

Research Progress on Antibacterial Effect of Epigallocatechin Gallate Based on Anti-virulence Strategy

WANG Tao1, XUE Ke2, ZHANG Guocheng1, XU Ziyi1, PENG Chengyang1, LIANG Xicai1, CUI Ziyin1, XIA Zhiqiang1, ZHANG Zehui1   

  1. 1. Liaoning University of Traditional Chinese Medicine, Shenyang 110847, China;
    2. Fuxin Higher Training College, Fuxin 123000, China
  • Received:2025-01-15 Online:2025-07-05 Published:2025-07-01

Abstract: With the increasingly serious problem of bacterial drug resistance,bacterial diseases in veterinary clinical practice have become more intractable,and the development of novel anti-infective drugs is extremely urgent.The anti-virulence strategy targeting bacterial virulence factors has become a promising antibacterial approach to avoid the selective pressure-induced resistance associated with conventional antibiotics.The flavonoid epigallocatechin gallate (EGCG), with its unique structures such as polyhydroxy,esterification modification,and stereoconfiguration,can bind to bacterial virulence factors and has inhibitory effects on the virulence factors of various bacteria. It is an ideal anti-virulence drug.The author reviewed the anti-virulence strategies of EGCG,summarized the physicochemical properties and pharmacological effects of EGCG,and clarified that this compound mainly inhibits bacterial virulence through direct binding to virulence factors,hindering the expression of virulence genes,preventing the secretion of virulence factors,and indirect anti-virulence action pathways.The inhibitory effects and mechanisms of EGCG on different types of virulence factors (endotoxin,hemolysin,enterotoxin,enzymes,biofilms and virulence regulatory systems) were further summarized and explored.From the perspective of clinical treatment,the application prospects and problems faced by the development of EGCG into an anti-virulence drug were discussed,aiming to provide a theoretical basis for the research of novel anti-virulent drugs in the veterinary field and promote the healthy and sustainable development of animal husbandry through anti-virulence strategies.

Key words: epigallocatechin gallate(EGCG); virulence factor; bacteria; inhibition

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