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Chen L, He Z, Slinger E, Bongers G, Lapenda TL, Pacer ME, Jiao J, Beltrao MF, Soto AJ, Harpaz N, Gordon RE, Ochando JC, Oukka M, Iuga AC, Chensue SW, Blander JM, Furtado GC, Lira SA. IL-23 activates innate lymphoid cells to promote neonatal intestinal pathology. Mucosal Immunol 2015; 8:390-402. [PMID: 25160819 PMCID: PMC4326561 DOI: 10.1038/mi.2014.77] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 07/29/2014] [Indexed: 02/04/2023]
Abstract
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-1(hi) ILC3s in vitro. Gut-specific expression of IL-23 also activated and expanded Thy1(+)Sca-1(hi) ILC3s, which produced IL-22, IL-17, interferon gamma (IFN-γ), and granulocyte-macrophage colony-stimulating factor (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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Affiliation(s)
- Lili Chen
- Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Zhengxiang He
- Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Erik Slinger
- Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Gerold Bongers
- Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Taciana L.S. Lapenda
- Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Michelle E. Pacer
- Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jingjing Jiao
- Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Monique F. Beltrao
- Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Alan J. Soto
- Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Noam Harpaz
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Ronald E. Gordon
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jordi C. Ochando
- Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA,Department of Nephrology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Mohamed Oukka
- Department of Pediatrics, University of Washington, Seattle, WA 98101, USA
| | - Alina Cornelia Iuga
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, NY 10032, USA
| | - Stephen W. Chensue
- Department of Pathology, University of Michigan Medical School, Ann Arbor, MI 48105, USA,Section of Pathology and Laboratory Medicine, Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, MI 48105, USA
| | | | - Glaucia C. Furtado
- Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Sergio A. Lira
- Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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