期刊
IMMUNOLOGY LETTERS
卷 165, 期 1, 页码 1-9出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.imlet.2015.03.002
关键词
Peyer's patch; Innate lymphoid cell; Commensal bacteria; IL-22
类别
资金
- Japan Society for the Promotion of Science [24580196]
- Minato Seki Foundation
- Grants-in-Aid for Scientific Research [24580196] Funding Source: KAKEN
Anatomical containment of commensal bacteria in the intestinal mucosa is promoted by innate lymphoid cells (ILCs). However, the mechanism by which ILCs regulate bacterial localization to specific regions remains unknown. Here we show that Peyer's patch (PP) ILCs robustly produce IL-22 and IFN-gamma in the absence of exogenous stimuli. Antibiotic treatment of mice decreased both IL-22(+) and IFN-gamma(+) cells in PPs. Blockade of both IL-2 and IL-23 signaling in vitro lowered IL-22 and IFN-gamma production. PP ILCs induced mRNA expression of the antibacterial proteins RegIII beta and RegIII gamma in intestinal epithelial cells. Furthermore, in vivo depletion of ILCs rather than T cells altered bacterial composition and allowed bacterial proliferation in PPs. Collectively, our results show that ILCs regulate the expansion of commensal bacteria in PPs. (C) 2015 European Federation of Immunological Societies. Published by Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据