Integrin-mediated first signal for inflammasome activation in intestinal epithelial cells.
Integrin-mediated first signal for inflammasome activation in intestinal epithelial cells.
复制标题
整合素介导的肠上皮细胞中炎性体激活的第一信号。
DOI:
10.4049/jimmunol.1400145
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发表时间:
2014-08-01
期刊:
影响因子:
--
通讯作者:
Dube PH
中科院分区:
文献类型:
--
作者:
Thinwa J;Segovia JA;Bose S;Dube PH
How intestinal epithelial cells recognize pathogens and activate inflammasomes at intestinal surfaces is poorly understood. We hypothesized that intestinal epithelial cells utilize integrin receptors to recognize pathogens and initiate inflammation within the intestinal tract. We find that intestinal epithelial cells infected with Yersinia enterocolitica, an enteric pathogen, use β1 integrins as pathogen recognition receptors detecting the bacterial adhesin invasin. The invasin-integrin interaction provides the first signal for NLRP3 inflammasome activation with the type three secretion system translocon providing the second signal for inflammasome activation resulting in release of IL-18. During infection, Yersinia employs two virulence factors, YopE and YopH, to counteract invasin-mediated integrin-dependent inflammasome activation. Further, NLRP3 inflammasome activation in epithelial cells requires components of the focal adhesion complex signaling pathway, focal adhesion kinase and rac 1. The binding of invasin to β1 integrins rapidly induces IL-18 mRNA expression suggesting integrins provide a first signal for NLRP3 inflammasome activation. These data suggest integrins function as pathogen recognition receptors on intestinal epithelial cells to rapidly induce inflammasome-derived IL-18-mediated responses.
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影响因子:
29.7
作者:
Davis BK;Wen H;Ting JP
通讯作者:
Ting JP
影响因子:
3.1
作者:
Clark, MA;Hirst, BH;Jepson, MA
通讯作者:
Jepson, MA
影响因子:
3.1
作者:
Funda, DP;Tucková, L;Tlaskalová-Hogenová, H
通讯作者:
Tlaskalová-Hogenová, H
影响因子:
64.5
作者:
ISBERG, RR;LEONG, JM
通讯作者:
LEONG, JM
DOI:
10.1073/pnas.95.23.13658
发表时间:
1998-11-10
影响因子:
11.1
作者:
Alrutz, MA;Isberg, RR
通讯作者:
Isberg, RR