Intimate host attachment: enteropathogenic and enterohaemorrhagic Escherichia coli.
Intimate host attachment: enteropathogenic and enterohaemorrhagic Escherichia coli.
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DOI:
10.1111/cmi.12179
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发表时间:
2013-11
影响因子:
3.4
通讯作者:
Frankel G
中科院分区:
文献类型:
--
作者:
Lai Y;Rosenshine I;Leong JM;Frankel G
Enteropathogenic and enterohaemorrhagic Escherichia coli use a novel infection strategy to colonize the gut epithelium, involving translocation of their own receptor, Tir, via a type III secretion system and subsequent formation of attaching and effecting (A/E) lesions. Following integration into the host cell plasma membrane of cultured cells, and clustering by the outer membrane adhesin intimin, Tir triggers multiple actin polymerization pathways involving host and bacterial adaptor proteins that converge on the host Arp2/3 actin nucleator. Although initially thought to be involved in A/E lesion formation, recent data have shown that the known Tir-induced actin polymerization pathways are dispensable for this activity, but can play other major roles in colonization efficiency, in vivo fitness and systemic disease. In this review we summarize the roadmap leading from the discovery of Tir, through the different actin polymerization pathways it triggers, to our current understanding of their physiological functions.
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通讯作者:
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