肠道固有免疫屏障与致病菌逃避肠道固有免疫清除的基因调控策略
Intestinal innate immune barrier and genetic regulatory mechanisms employed by enteropathogenic bacteria to evade innate immune system in intestines
李思嘉 1连思琪 1闫丽 1夏芃芃1
作者信息
- 1. 扬州大学兽医学院比较医学研究院江苏省动物重要疫病与人兽共患病防控协同创新中心/江苏高校动物重要疫病和重要人兽共患病防控技术国际合作联合实验室,江苏扬州 225009
- 折叠
摘要
肠道致病菌利用自身毒力因子干扰肠上皮细胞功能,并通过精密的基因调控策略躲避宿主免疫系统的清除,进而引发多种疾病.研究发现毒素—抗毒素系统、分泌系统以及群体感应系统均可以影响病原菌的基因表达策略;而越来越多的新型抑菌策略通过干扰细菌自身的基因调控系统,抑制细菌的毒力基因表达,能够达到温和地治疗肠道疾病的目的.本文首先从肠道固有免疫的组成入手,针对肠道致病菌的基因调控系统展开论述,阐述肠道致病菌利用自身基因调控逃避固有免疫清除的机制,旨在为治疗肠道细菌性疾病提供新的研究思路.
Abstract
Intestinal pathogenic bacteria utilize their own virulence factors to interfere with the nor-mal function of intestinal epithelial cells and evade clearance by the host immune system through precise gene regulation and expression strategies,thereby causing a variety of diseases.It has been found that the mechanisms affecting the gene expression strategies of pathogens include the toxin-antitoxin system,secretory system,and quorum sensing system.Novel antimicrobial strategies are being developed to interfere with the inherent gene regulatory system of bacteria and inhibit the expression of virulence genes,thus enabling a modest approach to the treatment of intestinal disea-ses.This paper initially discusses the components of innate immunity in the gut,followed by a dis-cussion of the common gene regulatory system of intestinal pathogenic bacteria.This article aims to clarify the mechanisms by which intestinal pathogenic bacteria evade clearance by the innate im-mune system through gene regulation and expression strategies,and to provide new ideas for the treatment of intestinal bacterial diseases.
关键词
肠道致病菌/固有免疫/基因调控/群体感应Key words
enteropathogenic bacteria/intestinal innate immunity/gene regulation/quorum sensing引用本文复制引用
基金项目
国家自然科学基金(32072820)
国家自然科学基金(31702242)
扬州大学本科生创新训练项目(X20220708)
江苏省高等学校优势学科建设工程项目()
出版年
2024
NETL
NSTL
万方数据