中国畜牧兽医 ›› 2023, Vol. 50 ›› Issue (12): 5056-5066.doi: 10.16431/j.cnki.1671-7236.2023.12.027

• 预防兽医 • 上一篇    下一篇

禽致病性大肠杆菌黏附素疫苗研究进展

马兴树1,2,3, 宋金祥1, 石虎3   

  1. 1. 河北工程大学生命科学与食品工程学院, 分子生物学实验室, 邯郸 056038;
    2. 河北省兽用液体制剂技术创新中心, 石家庄 050200;
    3. 河北科星药业有限公司河欣科技中心, 石家庄 050200
  • 收稿日期:2023-06-29 出版日期:2023-12-05 发布日期:2023-11-28

Current Progress on Adhesin-based Vaccines for Avian Pathogenic Escherichia coli

MA Xingshu1,2,3, SONG Jinxiang1, SHI Hu3   

  1. 1. Molecular Biology Laboratory, School of Life Sciences and Food Engineering, Hebei University of Engineering, Handan 056038, China;
    2. Hebei Provincial Veterinary Liquid Formulation Technology Innovation Center, Shijiazhuang 050200, China;
    3. Hexin Scientific and Technologic Center of Hebei Kexing Pharmaceutical Co., Ltd., Shijiazhuang 050200, China
  • Received:2023-06-29 Online:2023-12-05 Published:2023-11-28
  • Contact: 河北省重点研发计划项目(20326623D) E-mail:maxingshu@126.com
  • Supported by:
    The project was supported by the National Key Research and Development Program of China (2019YFC1905301);National Natural Science Foundation of China (22078115,21776108,21690083,22008078).

摘要: 禽致病性大肠杆菌(avian pathogenic Escherichia coli,APEC)是导致不同日龄禽类局部和全身感染的重要病原菌,也是人肠外致病性大肠杆菌(extraintestinal pathogenic E.coli,ExPEC)毒力基因的重要贮存库或来源。随着APEC耐药菌株的日益增多,迫切需要开辟防控APEC感染的有效途径,其中阻止细菌感染的初始阶段便是防控感染的最有效措施之一。黏附素除介导细菌与宿主组织结合外,也是成功建立初始感染的第一步。因此,利用黏附素作为靶标制备疫苗预防APEC感染将是一种极有前途的策略。笔者重点介绍了菌毛黏附素、非菌毛黏附素和非典型黏附素等的结构与功能,以及有望成为APEC候选疫苗的黏附素的应用潜力和最新研究进展,如1型菌毛、P菌毛、普通菌毛、Yqi菌毛、Stg菌毛、Curli菌毛、温度敏感血凝素(Tsh)、AatA、FdeC、YeeJ、鞭毛蛋白、脂多糖(LPS)和外膜蛋白A等。黏附素疫苗一旦开发成功,将有望成为一种防控APEC感染的有力手段。

关键词: 禽致病性大肠杆菌; 黏附素; 黏附素疫苗

Abstract: Avian pathogenic Escherichia coli (APEC) is an important pathogen that causes local and systemic infections in birds of different ages,and is also an important reservoir or source of virulence genes for human extraintestinal pathogenic Escherichia coli(ExPEC).With the increasing number of APEC-resistant strains,there is an urgent need to develop effective ways to prevent and control APEC infection,and preventing bacterial infection at the initial stage is one of the most effective measures to combat infection.In addition to mediating bacterial binding to host tissues,adhesins are the first step in the successful establishment of an initial infection.Therefore,using adhesin as a target to prepare a vaccine to prevent APEC infection will be a very promising strategy.The authors focus on the structure and functions of various adhesins,including fimbrial adhesins,afimbrial adhesins (Afa) and atypical adhesins.It also discusses their potential as candidate vaccine adhesins for APEC,some of the adhesins mentioned include type 1 fimbriae,P fimbriae,common fimbriae,Yqi fimbriae,Stg fimbriae,curli fimbriae,temperature-sensitive hemagglutinin (Tsh),AatA,FdeC,YeeJ,flagellin,lipopolysaccharide (LPS), outer membrane protein A,etc.Once successfully developed,the adhesin-based vaccines is expected to become a powerful means of preventing and controlling APEC infection.

Key words: avian pathogenic Escherichia coli; adhesin; adhesin-based vaccines

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