IL-23 activates innate lymphoid cells to promote neonatal intestinal pathology.
IL-23 activates innate lymphoid cells to promote neonatal intestinal pathology.
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作者:
Interleukin-23 (IL-23) responsive group 3 innate lymphoid cells (ILC3s) have been implicated in immune homeostasis and pathogenesis in the adult, but little is known about their roles in the newborn. Here we show that IL-23 promotes conversion of embryonic intestinal Lin−IL-23R+Thy1+ cells into IL-22-producing Thy1+Sca-1hi ILC3s in vitro. Gut-specific expression of IL-23 also activated and expanded Thy1+Sca-1hi ILC3s, which produced IL-22, IL-17, IFN-γ, and GM-CSF and were distinct from canonical CD4+ lymphoid tissue inducer (LTi) cells. These ILC3s accumulated under the epithelium in intercellular adhesion molecule (ICAM)-1 positive cell aggregates together with neutrophils that disrupted the epithelium, leading to the formation of discrete intestinal erosions, bleeding, and neonatal death. Genetic and antibody depletion of ILC3s rescued the mice from neonatal death. Antibiotic treatment of pregnant mothers and offspring prolonged survival of IL-23 transgenic mice, suggesting a role for the commensal flora on ILC3-induced pathogenesis. Our results reveal a novel role for the IL-23-ILC3s axis in the pathogenesis of neonatal intestinal inflammation.
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影响因子:
32.4
作者:
Oppmann, B;Lesley, R;Kastelein, RA
通讯作者:
Kastelein, RA
影响因子:
32.4
作者:
Powell N;Walker AW;Stolarczyk E;Canavan JB;Gökmen MR;Marks E;Jackson I;Hashim A;Curtis MA;Jenner RG;Howard JK;Parkhill J;MacDonald TT;Lord GM
通讯作者:
Lord GM
DOI:
10.4049/jimmunol.0901481
发表时间:
2009-12-01
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Kollmann TR;Crabtree J;Rein-Weston A;Blimkie D;Thommai F;Wang XY;Lavoie PM;Furlong J;Fortuno ES 3rd;Hajjar AM;Hawkins NR;Self SG;Wilson CB
通讯作者:
Wilson CB
DOI:
10.1152/ajpgi.00248.2012
发表时间:
2012-09-01
影响因子:
4.5
作者:
Coursodon-Boyiddle, Christine F.;Snarrenberg, Chelsea L.;Dvorak, Bohuslav
通讯作者:
Dvorak, Bohuslav
影响因子:
64.8
作者:
通讯作者:
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