Always one step ahead: How pathogenic bacteria use the type III secretion system to manipulate the intestinal mucosal immune system.

Always one step ahead: How pathogenic bacteria use the type III secretion system to manipulate the intestinal mucosal immune system.
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DOI:
10.1186/1476-9255-8-11
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发表时间:
2011-05-03
期刊:
Journal of inflammation (London, England)
影响因子:
--
通讯作者:
Marchès O
Marchès O
中科院分区:
其他
文献类型:
--
作者:
Vossenkämper A;Macdonald TT;Marchès O

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肠道免疫系统和上皮细胞是肠道的第一道防线。肠道不断暴露在来自环境的微生物中,具有复杂的防御机制来防止感染,以及耐受共生细菌和食物抗原的调节途径。肠道病原体已经制定了调节肠道免疫和炎症的策略,以建立或延长感染。使用III型分泌系统的生物体使用分子注射器将效应蛋白输送到宿主细胞的细胞质中。这些效应物针对宿主细胞骨架、细胞器和信号通路。本文综述了III型分泌系统以肠道免疫反应为靶点的多种机制,尤其是致病性大肠杆菌。
The intestinal immune system and the epithelium are the first line of defense in the gut. Constantly exposed to microorganisms from the environment, the gut has complex defense mechanisms to prevent infections, as well as regulatory pathways to tolerate commensal bacteria and food antigens. Intestinal pathogens have developed strategies to regulate intestinal immunity and inflammation in order to establish or prolong infection. The organisms that employ a type III secretion system use a molecular syringe to deliver effector proteins into the cytoplasm of host cells. These effectors target the host cell cytoskeleton, cell organelles and signaling pathways. This review addresses the multiple mechanisms by which the type III secretion system targets the intestinal immune response, with a special focus on pathogenic E. coli.
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