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Teng F, Tachó-Piñot R, Sung B, Farber DL, Worgall S, Hammad H, Lambrecht BN, Hepworth MR, Sonnenberg GF. ILC3s control airway inflammation by limiting T cell responses to allergens and microbes. Cell Rep 2021; 37:110051. [PMID: 34818549 PMCID: PMC8635287 DOI: 10.1016/j.celrep.2021.110051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 09/28/2021] [Accepted: 11/02/2021] [Indexed: 02/06/2023] Open
Abstract
Group 3 innate lymphoid cells (ILC3s) critically regulate host-microbe
interactions in the gastrointestinal tract, but their role in the airway remains
poorly understood. Here, we demonstrate that lymphoid-tissue-inducer (LTi)-like
ILC3s are enriched in the lung-draining lymph nodes of healthy mice and humans.
These ILC3s abundantly express major histocompatibility complex class II (MHC
class II) and functionally restrict the expansion of allergen-specific
CD4+ T cells upon experimental airway challenge. In a mouse model
of house-dust-mite-induced allergic airway inflammation, MHC class
II+ ILC3s limit T helper type 2 (Th2) cell responses,
eosinophilia, and airway hyperresponsiveness. Furthermore, MHC class
II+ ILC3s limit a concomitant Th17 cell response and airway
neutrophilia. This exacerbated Th17 cell response requires exposure of the lung
to microbial stimuli, which can be found associated with house dust mites. These
findings demonstrate a critical role for antigen-presenting ILC3s in
orchestrating immune tolerance in the airway by restricting pro-inflammatory T
cell responses to both allergens and microbes. In this study, Teng et al. demonstrate that an innate immune cell type,
ILC3, is enriched in the lung draining lymph node of healthy humans and mice and
functions to limit airway inflammation through antigen presentation and control
of T cell responses directed against allergens or microbes.
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Affiliation(s)
- Fei Teng
- Joan and Sanford I. Weill Department of Medicine, Division of Gastroenterology, Weill Cornell Medicine, Cornell University, New York, NY, USA; Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY, USA; Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, Cornell University, New York, NY, USA
| | - Roser Tachó-Piñot
- Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, UK; Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Biin Sung
- Department of Pediatrics, Weill Cornell Medicine, New York, New York, USA
| | - Donna L Farber
- Columbia Center for Translational Immunology and Departments of Surgery and Microbiology and Immunology, Columbia University Medical Center, New York, New York, USA
| | - Stefan Worgall
- Department of Pediatrics, Weill Cornell Medicine, New York, New York, USA; Department of Genetic Medicine, Weill Cornell Medicine, New York, New York, USA; Drukier Institute for Children's Health, Weill Cornell Medicine, New York, New York, USA
| | - Hamida Hammad
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Bart N Lambrecht
- Laboratory of Immunoregulation and Mucosal Immunology, VIB-UGent Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium; Department of Pulmonary Medicine, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Matthew R Hepworth
- Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, UK; Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK.
| | - Gregory F Sonnenberg
- Joan and Sanford I. Weill Department of Medicine, Division of Gastroenterology, Weill Cornell Medicine, Cornell University, New York, NY, USA; Department of Microbiology and Immunology, Weill Cornell Medicine, Cornell University, New York, NY, USA; Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medicine, Cornell University, New York, NY, USA.
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