Listeria Adhesion Protein Induces Intestinal Epithelial Barrier Dysfunction for Bacterial Translocation.
Listeria Adhesion Protein Induces Intestinal Epithelial Barrier Dysfunction for Bacterial Translocation.
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DOI:
10.1016/j.chom.2018.03.004
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发表时间:
2018-04-11
影响因子:
30.3
通讯作者:
Bhunia AK
中科院分区:
文献类型:
--
作者:
Drolia R;Tenguria S;Durkes AC;Turner JR;Bhunia AK
Intestinal epithelial cells are the first line of defense against enteric pathogens, yet bacterial pathogens, such as Listeria monocytogenes, can breach this barrier. We show that Listeria adhesion protein (LAP) induces intestinal epithelial barrier dysfunction to promote bacterial translocation. These disruptions are attributed to the production of pro-inflammatory cytokines TNF-α and IL-6, which is observed in mice challenged with WT and isogenic strains lacking the surface invasion protein Internalin A (ΔinlA), but not a lap− mutant. Additionally, upon engagement of its surface receptor Hsp60, LAP activates canonical NF-κB signaling, facilitating myosin light-chain kinase (MLCK)-mediated opening of the epithelial barrier via cellular redistribution of the epithelial junctional proteins claudin-1, occludin, and E-cadherin. Pharmacological inhibition of MLCK or NF-κB in cells or genetic ablation of MLCK in mice prevents mislocalization of junctional proteins and L. monocytogenes translocation. Thus, L. monocytogenes uses LAP to exploit epithelial defenses and cross the intestinal epithelial barrier. The pathogen Listeria monocytogenes crosses the intestinal barrier during infection. Drolia et al. show that L. monocytogenes employs Listeria adhesion protein (LAP) to exploit epithelial innate defenses and induce intestinal barrier dysfunction. LAP induces activation of NF-κB and MLCK, resulting in cellular redistribution of epithelial junction proteins and bacterial translocation.
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影响因子:
5.4
作者:
Jaradat, ZW;Wampler, JL;Bhunia, AK
通讯作者:
Bhunia, AK
DOI:
10.1152/ajpcell.1996.271.5.c1678
发表时间:
1996-11-01
影响因子:
5.5
作者:
Hecht, G;Pestic, L;deLanerolle, P
通讯作者:
deLanerolle, P
DOI:
10.1073/pnas.1007765107
发表时间:
2010-10-05
影响因子:
11.1
作者:
Gouin, Edith;Adib-Conquy, Minou;Cossart, Pascale
通讯作者:
Cossart, Pascale
影响因子:
3.6
作者:
Kayal, S;Lilienbaum, A;Berche, P
通讯作者:
Berche, P
影响因子:
3.6
作者:
DRAMSI, S;BISWAS, I;COSSART, P
通讯作者:
COSSART, P