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Choi YA, Dhakal H, Lee S, Kim N, Lee B, Kwon TK, Khang D, Kim SH. IRF3 Activation in Mast Cells Promotes FcεRI-Mediated Allergic Inflammation. Cells 2023; 12:1493. [PMID: 37296614 PMCID: PMC10252328 DOI: 10.3390/cells12111493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 05/22/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023] Open
Abstract
(1) Background: This study aims to elucidate a novel non-transcriptional action of IRF3 in addition to its role as a transcription factor in mast cell activation and associated allergic inflammation; (2) Methods: For in vitro experiments, mouse bone-marrow-derived mast cells (mBMMCs) and a rat basophilic leukemia cell line (RBL-2H3) were used for investigating the underlying mechanism of IRF3 in mast-cell-mediated allergic inflammation. For in vivo experiments, wild-type and Irf3 knockout mice were used for evaluating IgE-mediated local and systemic anaphylaxis; (3) Results: Passive cutaneous anaphylaxis (PCA)-induced tissues showed highly increased IRF3 activity. In addition, the activation of IRF3 was observed in DNP-HSA-treated mast cells. Phosphorylated IRF3 by DNP-HSA was spatially co-localized with tryptase according to the mast cell activation process, and FcεRI-mediated signaling pathways directly regulated that activity. The alteration of IRF3 affected the production of granule contents in the mast cells and the anaphylaxis responses, including PCA- and ovalbumin-induced active systemic anaphylaxis. Furthermore, IRF3 influenced the post-translational processing of histidine decarboxylase (HDC), which is required for granule maturation; and (4) Conclusion: Through this study, we demonstrated the novel function of IRF3 as an important factor inducing mast cell activation and as an upstream molecule for HDC activity.
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Affiliation(s)
- Young-Ae Choi
- Cell & Matrix Research Institute, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea; (Y.-A.C.); (H.D.); (N.K.)
| | - Hima Dhakal
- Cell & Matrix Research Institute, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea; (Y.-A.C.); (H.D.); (N.K.)
| | - Soyoung Lee
- Immunoregulatory Materials Research Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56212, Republic of Korea;
| | - Namkyung Kim
- Cell & Matrix Research Institute, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea; (Y.-A.C.); (H.D.); (N.K.)
| | - Byungheon Lee
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea;
| | - Taeg Kyu Kwon
- Department of Immunology, School of Medicine, Keimyung University, Daegu 42601, Republic of Korea;
| | - Dongwoo Khang
- Department of Physiology, School of Medicine, Gachon University, Incheon 21999, Republic of Korea
| | - Sang-Hyun Kim
- Cell & Matrix Research Institute, Department of Pharmacology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea; (Y.-A.C.); (H.D.); (N.K.)
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2
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Wu R, Yuan X, Li X, Ma N, Jiang H, Tang H, Xu G, Liu Z, Zhang Z. The bile acid-activated retinoic acid response in dendritic cells is involved in food allergen sensitization. Allergy 2022; 77:483-498. [PMID: 34365653 DOI: 10.1111/all.15039] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 06/13/2021] [Accepted: 06/27/2021] [Indexed: 01/10/2023]
Abstract
BACKGROUND Alteration of commensal microbiota is highly correlated with the prevalence of allergic reactions to food in the gastrointestinal tract. The mechanisms by which microbiota modulate food allergen sensitization in the mucosal site are not fully understood. METHODS We generate DCs specific knockout of retinoic acid receptor α (Rara) gene mice (DC KO Rara) to evaluate food sensitization. The bile acid-activated retinoic acid response was evaluated by flow cytometry, real-time RT-PCR and Illumina transcriptome sequencing. The global effect of Abx treatment on BA profiles in the mucosal lymph tissue mLN in mice was examined by UPLC-MS analysis. RESULTS In this study, we demonstrate that depletion of commensal gut bacteria leads to enhanced retinoic acid (RA) signaling in mucosal dendritic cells (DCs). RA signaling in DCs is required for the production of food allergen-specific IgE and IgG1. Antibiotics induced an enlarged bile acid (BA) pool, and dysregulated BA profiles contributed to enhanced RA signaling in mucosal DCs. BA-activated RA signaling promoted DC upregulation of interferon I signature, RA signature, OX40L, and PDL2, which may lead to T helper 2 differentiation of CD4+ T cells. BA-activated RA signaling involved the farnesoid X receptor and RA receptor α (RARa) interaction. Depletion of bile acid reduces food allergen specific IgE and IgG1 levels in mice. CONCLUSION Our research unveils a mechanism of food sensitization modulated by BA-RA signaling in DCs, which suggests a potential new approach for the intervention of food allergic reactions.
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Affiliation(s)
- Renlan Wu
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
- Model Animal Research Center Nanjing University Nanjing China
| | - Xiefang Yuan
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
| | - Xingjie Li
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
- The School of Basic Medical Sciences Southwest Medical University Sichuan China
| | - Ning Ma
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
| | - Hongyu Jiang
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
- The School of Basic Medical Sciences Southwest Medical University Sichuan China
| | - Hongmei Tang
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
| | - Guofeng Xu
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
| | - Zhigang Liu
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen UniversityShenzhen University School of Medicine Shenzhen China
| | - Zongde Zhang
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
- The School of Basic Medical Sciences Southwest Medical University Sichuan China
- Model Animal Research Center Nanjing University Nanjing China
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3
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Petro TM. IFN Regulatory Factor 3 in Health and Disease. THE JOURNAL OF IMMUNOLOGY 2021; 205:1981-1989. [PMID: 33020188 DOI: 10.4049/jimmunol.2000462] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Accepted: 07/07/2020] [Indexed: 12/14/2022]
Abstract
Immunity to viruses requires an array of critical cellular proteins that include IFN regulatory factor 3 (IRF3). Consequently, most viruses that infect vertebrates encode proteins that interfere with IRF3 activation. This review describes the cellular pathways linked to IRF3 activation and where those pathways are targeted by human viral pathogens. Moreover, key regulatory pathways that control IRF3 are discussed. Besides viral infections, IRF3 is also involved in resistance to some bacterial infections, in anticancer immunity, and in anticancer therapies involving DNA damage agents. A recent finding shows that IRF3 is needed for T cell effector functions that are involved in anticancer immunity and also in T cell autoimmune diseases. In contrast, unregulated IRF3 activity is clearly not beneficial, considering it is implicated in certain interferonopathies, in which heightened IRF3 activity leads to IFN-β-induced disease. Therefore, IRF3 is involved largely in maintaining health but sometimes contributing to disease.
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Affiliation(s)
- Thomas M Petro
- Department of Oral Biology, University of Nebraska Medical Center, Lincoln, NE 68583; and Nebraska Center for Virology, University of Nebraska Medical Center, Lincoln, NE 68583
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4
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Wu R, Li X, Ma N, Jin X, Yuan X, Qu C, Tang H, Liu Z, Zhang Z. Bacterial Quorum Sensing Molecules Promote Allergic Airway Inflammation by Activating the Retinoic Acid Response. iScience 2020; 23:101288. [PMID: 32622265 PMCID: PMC7334417 DOI: 10.1016/j.isci.2020.101288] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 03/24/2020] [Accepted: 06/14/2020] [Indexed: 12/14/2022] Open
Abstract
IgE and IgG1 production in the type 2 immune response is the characteristic feature of an allergic reaction. However, whether bacterial molecules modulate IgE and IgG1 production remains obscure. Here, we demonstrate that the bacterial quorum sensing molecules acyl homoserine lactones (AHLs) induce IgE and IgG1 production by activating the RARE (retinoic acid response element) response in dendritic cells (DCs) in vivo. DC-specific knockout of the retinoic acid transcriptional factor Rara diminished the AHL-stimulated type 2 immune response in vitro. AHLs altered DC phenotype, upregulated OX40L and IFN-I signature, and promoted T helper 2 cell differentiation in vitro. Finally, AHLs activated the RARE response by inhibiting AKT phosphorylation in vitro, as the AKT agonists IGF-1 and PDGF abolished the effect of AHLs on the RARE response. This study demonstrates a mechanism by which AHLs drive allergic airway inflammation through activating retinoic acid signaling in DCs. Acyl homoserine lactones (AHLs) exacerbate allergic airway inflammation AHLs induce IgE and IgG1 production AHLs activate the RARE response in dendritic cells AHLs inhibit AKT phosphorylation
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Affiliation(s)
- Renlan Wu
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China; Model Animal Research Center, Nanjing University, Nanjing 210061, China
| | - Xingjie Li
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China; The School of Basic Medical Sciences, Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Ning Ma
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Xiufeng Jin
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Xiefang Yuan
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Chen Qu
- Model Animal Research Center, Nanjing University, Nanjing 210061, China
| | - Hongmei Tang
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China
| | - Zhigang Liu
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen University School of Medicine, Shenzhen 518060, China
| | - Zongde Zhang
- Inflammation & Allergic Diseases Research Unit, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, China; The School of Basic Medical Sciences, Southwest Medical University, Luzhou, Sichuan 646000, China; Model Animal Research Center, Nanjing University, Nanjing 210061, China.
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5
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Hilligan KL, Ronchese F. Antigen presentation by dendritic cells and their instruction of CD4+ T helper cell responses. Cell Mol Immunol 2020; 17:587-599. [PMID: 32433540 DOI: 10.1038/s41423-020-0465-0] [Citation(s) in RCA: 180] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 05/10/2020] [Indexed: 12/20/2022] Open
Abstract
Dendritic cells are powerful antigen-presenting cells that are essential for the priming of T cell responses. In addition to providing T-cell-receptor ligands and co-stimulatory molecules for naive T cell activation and expansion, dendritic cells are thought to also provide signals for the differentiation of CD4+ T cells into effector T cell populations. The mechanisms by which dendritic cells are able to adapt and respond to the great variety of infectious stimuli they are confronted with, and prime an appropriate CD4+ T cell response, are only partly understood. It is known that in the steady-state dendritic cells are highly heterogenous both in phenotype and transcriptional profile, and that this variability is dependent on developmental lineage, maturation stage, and the tissue environment in which dendritic cells are located. Exposure to infectious agents interfaces with this pre-existing heterogeneity by providing ligands for pattern-recognition and toll-like receptors that are variably expressed on different dendritic cell subsets, and elicit production of cytokines and chemokines to support innate cell activation and drive T cell differentiation. Here we review current information on dendritic cell biology, their heterogeneity, and the properties of different dendritic cell subsets. We then consider the signals required for the development of different types of Th immune responses, and the cellular and molecular evidence implicating different subsets of dendritic cells in providing such signals. We outline how dendritic cell subsets tailor their response according to the infectious agent, and how such transcriptional plasticity enables them to drive different types of immune responses.
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Affiliation(s)
- Kerry L Hilligan
- Malaghan Institute of Medical Research, Wellington, 6012, New Zealand.,Immunobiology Section, Laboratory of Parasitic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Franca Ronchese
- Malaghan Institute of Medical Research, Wellington, 6012, New Zealand.
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6
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IRF3 and IRF7 contribute to diesel exhaust particles‐induced pulmonary inflammation by mediating mTORC1 activation and restraining autophagy in mice. Eur J Immunol 2020; 50:1142-1153. [DOI: 10.1002/eji.201948415] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 02/10/2020] [Accepted: 03/03/2020] [Indexed: 01/29/2023]
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7
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Radermecker C, Sabatel C, Vanwinge C, Ruscitti C, Maréchal P, Perin F, Schyns J, Rocks N, Toussaint M, Cataldo D, Johnston SL, Bureau F, Marichal T. Locally instructed CXCR4 hi neutrophils trigger environment-driven allergic asthma through the release of neutrophil extracellular traps. Nat Immunol 2019; 20:1444-1455. [PMID: 31591573 PMCID: PMC6859073 DOI: 10.1038/s41590-019-0496-9] [Citation(s) in RCA: 97] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Accepted: 08/15/2019] [Indexed: 02/07/2023]
Abstract
Low exposure to microbial products, respiratory viral infections and air pollution is a major risk factor for allergic asthma, yet the mechanistic links between such conditions and host susceptibility to type 2 allergic disorders remain unclear. Through the use of single-cell RNA sequencing (scRNA-seq), we characterized lung neutrophils in mice exposed to a pro-allergic, low dose of lipopolysaccharides (LPSlo) or a protective, high dose of LPS (LPShi) before exposure to house dust mite (HDM). Unlike exposure to LPShi, exposure to LPSlo instructed recruited neutrophils to upregulate the expression of the chemokine receptor CXCR4 and to release neutrophil extracellular traps (NETs). The LPSlo-induced neutrophils and NETs potentiated the uptake of HDM by CD11b+Ly-6C+ dendritic cells (DCs) and type 2 allergic airway inflammation in response to HDM. NETs derived from CXCR4hi neutrophils were also needed to mediate allergic asthma triggered by infection with influenza virus or exposure to ozone. Our study indicates that apparently unrelated environmental risk factors can shape recruited lung neutrophils to promote the initiation of allergic asthma.
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Affiliation(s)
- Coraline Radermecker
- Laboratory of Cellular and Molecular Immunology, GIGA Institute, Liege University, Liege, Belgium.,Laboratory of Immunophysiology, GIGA Institute, Liege University, Liege, Belgium.,Faculty of Veterinary Medicine, Liege University, Liege, Belgium
| | - Catherine Sabatel
- Laboratory of Cellular and Molecular Immunology, GIGA Institute, Liege University, Liege, Belgium.,Faculty of Veterinary Medicine, Liege University, Liege, Belgium
| | - Céline Vanwinge
- Laboratory of Tumor and Development Biology, GIGA Institute, Liege University, Liege, Belgium
| | - Cecilia Ruscitti
- Laboratory of Immunophysiology, GIGA Institute, Liege University, Liege, Belgium.,Faculty of Veterinary Medicine, Liege University, Liege, Belgium
| | - Pauline Maréchal
- Laboratory of Immunophysiology, GIGA Institute, Liege University, Liege, Belgium.,Faculty of Veterinary Medicine, Liege University, Liege, Belgium
| | - Fabienne Perin
- Laboratory of Tumor and Development Biology, GIGA Institute, Liege University, Liege, Belgium
| | - Joey Schyns
- Laboratory of Cellular and Molecular Immunology, GIGA Institute, Liege University, Liege, Belgium.,Laboratory of Immunophysiology, GIGA Institute, Liege University, Liege, Belgium.,Faculty of Veterinary Medicine, Liege University, Liege, Belgium
| | - Natacha Rocks
- Laboratory of Tumor and Development Biology, GIGA Institute, Liege University, Liege, Belgium
| | - Marie Toussaint
- Airway Disease Section, National Heart and Lung Institute, Imperial College London, London, UK.,Medical Research Council and Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
| | - Didier Cataldo
- Laboratory of Tumor and Development Biology, GIGA Institute, Liege University, Liege, Belgium
| | - Sebastian L Johnston
- Airway Disease Section, National Heart and Lung Institute, Imperial College London, London, UK.,Medical Research Council and Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK.,Imperial College Healthcare National Health Service Trust, London, UK
| | - Fabrice Bureau
- Laboratory of Cellular and Molecular Immunology, GIGA Institute, Liege University, Liege, Belgium. .,Faculty of Veterinary Medicine, Liege University, Liege, Belgium. .,Walloon Excellence in Life Sciences and Biotechnology, Wallonia, Belgium.
| | - Thomas Marichal
- Laboratory of Cellular and Molecular Immunology, GIGA Institute, Liege University, Liege, Belgium. .,Laboratory of Immunophysiology, GIGA Institute, Liege University, Liege, Belgium. .,Faculty of Veterinary Medicine, Liege University, Liege, Belgium. .,Walloon Excellence in Life Sciences and Biotechnology, Wallonia, Belgium.
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8
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She L, Alanazi HH, Yan L, Zou Y, Sun Y, Dube PH, Brooks EG, Barrera GD, Lai Z, Chen Y, Liu Y, Zhang X, Li XD. Immune Sensing of Aeroallergen-Associated Double-Stranded RNA Triggers an IFN Response and Modulates Type 2 Lung Inflammation. THE JOURNAL OF IMMUNOLOGY 2019; 203:2520-2531. [PMID: 31562213 DOI: 10.4049/jimmunol.1900720] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 08/26/2019] [Indexed: 01/10/2023]
Abstract
The innate immune sensing of allergens or allergen-associated components regulate the development of type 2 inflammatory responses. However, the underlying molecular basis by which allergens or allergen-associated components are detected by innate immune receptors remains elusive. In this study, we report that the most common aeroallergen, house dust mite (HDM), harbors a dsRNA species (HDM-dsRNA) that can activate TLR3-mediated IFN responses and counteract the development of an uncontrolled type 2 immune response. We demonstrate that the mouse strains defective in the dsRNA-sensing pathways show aggravated type 2 inflammation defined by severe eosinophilia, elevated level of type 2 cytokines, and mucus overproduction in a model of allergic lung inflammation. The inability to sense HDM-dsRNA resulted in significant increases in airway hyperreactivity. We further show that the administration of the purified HDM-dsRNA at a low dose is sufficient to induce an immune response to prevent the onset of a severe type 2 lung inflammation. Collectively, these results unveil a new role for the HDM-dsRNA/TLR3-signaling axis in the modulation of a type 2 lung inflammation in mice.
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Affiliation(s)
- Li She
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health San Antonio, San Antonio, TX 78229.,Department of Otolaryngology, Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Hamad H Alanazi
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health San Antonio, San Antonio, TX 78229
| | - Liping Yan
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health San Antonio, San Antonio, TX 78229
| | - Yi Zou
- Greehey Children's Cancer Research Institute, University of Texas Health San Antonio, San Antonio, TX 78229; and
| | - Yilun Sun
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health San Antonio, San Antonio, TX 78229
| | - Peter H Dube
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health San Antonio, San Antonio, TX 78229
| | - Edward G Brooks
- Division of Immunology and Infectious Disease, Long School of Medicine, University of Texas Health San Antonio, San Antonio, TX 78229
| | - Gema D Barrera
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health San Antonio, San Antonio, TX 78229
| | - Zhao Lai
- Greehey Children's Cancer Research Institute, University of Texas Health San Antonio, San Antonio, TX 78229; and
| | - Yidong Chen
- Greehey Children's Cancer Research Institute, University of Texas Health San Antonio, San Antonio, TX 78229; and
| | - Yong Liu
- Department of Otolaryngology, Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Xin Zhang
- Department of Otolaryngology, Head and Neck Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Xiao-Dong Li
- Department of Microbiology, Immunology and Molecular Genetics, University of Texas Health San Antonio, San Antonio, TX 78229;
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9
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Double negative T cells mediate Lag3-dependent antigen-specific protection in allergic asthma. Nat Commun 2019; 10:4246. [PMID: 31534137 PMCID: PMC6751182 DOI: 10.1038/s41467-019-12243-0] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 08/28/2019] [Indexed: 12/20/2022] Open
Abstract
Allergic asthma is an inflammatory disorder of the airway without satisfactory traditional therapies capable of controlling the underlying pathology. New approaches that can overcome the detrimental effects of immune dysregulation are thus desirable. Here we adoptively transfer ovalbumin (OVA) peptide-primed CD4−CD8− double negative T (DNT) cells intravenously into a mouse model of OVA-induced allergic asthma to find that OVA-induced airway hyperresponsiveness, lung inflammation, mucus production and OVA-specific IgG/IgE production are significantly suppressed. The immunosuppressive function of the OVA-specific DNT cells is dependent on the inhibition of CD11b+ dendritic cell function, T follicular helper cell proliferation, and IL-21 production. Mechanistically, Lag3 contributes to MHC-II antigen recognition and trogocytosis, thereby modulating the antigen-specific immune regulation by DNT cells. The effectiveness of ex vivo-generated allergen-specific DNT cells in alleviating airway inflammation thus supports the potential utilization of DNT cell-based therapy for the treatment of allergic asthma. Allergic asthma symptoms may be controlled, but currently no effective therapy exist to address the underlying pathology. Here the authors show, using mouse model of adoptive cell transfer, that CD4-CD8- T cells can suppress the function of dendritic cells and T follicular helper cells via Lag3 to provide allergen-specific protection from asthma.
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10
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Meldrum K, Robertson SB, Römer I, Marczylo T, Dean LSN, Rogers A, Gant TW, Smith R, Tetley TD, Leonard MO. Cerium dioxide nanoparticles exacerbate house dust mite induced type II airway inflammation. Part Fibre Toxicol 2018; 15:24. [PMID: 29792201 PMCID: PMC5966909 DOI: 10.1186/s12989-018-0261-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 05/15/2018] [Indexed: 12/11/2022] Open
Abstract
Background Nanomaterial inhalation represents a potential hazard for respiratory conditions such as asthma. Cerium dioxide nanoparticles (CeO2NPs) have the ability to modify disease outcome but have not been investigated for their effect on models of asthma and inflammatory lung disease. The aim of this study was to examine the impact of CeO2NPs in a house dust mite (HDM) induced murine model of asthma. Results Repeated intranasal instillation of CeO2NPs in the presence of HDM caused the induction of a type II inflammatory response, characterised by increased bronchoalveolar lavage eosinophils, mast cells, total plasma IgE and goblet cell metaplasia. This was accompanied by increases in IL-4, CCL11 and MCPT1 gene expression together with increases in the mucin and inflammatory regulators CLCA1 and SLC26A4. CLCA1 and SLC26A4 were also induced by CeO2NPs + HDM co-exposure in air liquid interface cultures of human primary bronchial epithelial cells. HDM induced airway hyperresponsiveness and airway remodelling in mice were not altered with CeO2NPs co-exposure. Repeated HMD instillations followed by a single exposure to CeO2NPs failed to produce changes in type II inflammatory endpoints but did result in alterations in the neutrophil marker CD177. Treatment of mice with CeO2NPs in the absence of HDM did not have any significant effects. RNA-SEQ was used to explore early effects 24 h after single treatment exposures. Changes in SAA3 expression paralleled increased neutrophil BAL levels, while no changes in eosinophil or lymphocyte levels were observed. HDM resulted in a strong induction of type I interferon and IRF3 dependent gene expression, which was inhibited with CeO2NPs co-exposure. Changes in the expression of genes including CCL20, CXCL10, NLRC5, IRF7 and CLEC10A suggest regulation of dendritic cells, macrophage functionality and IRF3 modulation as key early events in how CeO2NPs may guide pulmonary responses to HDM towards type II inflammation. Conclusions CeO2NPs were observed to modulate the murine pulmonary response to house dust mite allergen exposure towards a type II inflammatory environment. As this type of response is present within asthmatic endotypes this finding may have implications for how occupational or incidental exposure to CeO2NPs should be considered for those susceptible to disease. Electronic supplementary material The online version of this article (10.1186/s12989-018-0261-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Kirsty Meldrum
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Harwell Campus, Chilton, OX110RQ, UK.,Lung Cell Biology, Airways Disease, National Heart & Lung Institute, Imperial College London, London, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Sarah B Robertson
- Environmental Hazards and Emergencies Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Chilton, Harwell Campus, Chilton, OX110RQ, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Isabella Römer
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Harwell Campus, Chilton, OX110RQ, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Tim Marczylo
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Harwell Campus, Chilton, OX110RQ, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Lareb S N Dean
- Lung Cell Biology, Airways Disease, National Heart & Lung Institute, Imperial College London, London, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Andrew Rogers
- Lung Cell Biology, Airways Disease, National Heart & Lung Institute, Imperial College London, London, UK
| | - Timothy W Gant
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Harwell Campus, Chilton, OX110RQ, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Rachel Smith
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Harwell Campus, Chilton, OX110RQ, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Terry D Tetley
- Lung Cell Biology, Airways Disease, National Heart & Lung Institute, Imperial College London, London, UK.,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK
| | - Martin O Leonard
- Toxicology Department, Centre for Radiation, Chemical and Environmental Hazards, Public Health England, Harwell Campus, Chilton, OX110RQ, UK. .,The National Institute for Health Research Health Protection Research Unit (NIHR HPRU), Health Impact of Environmental Hazards at King's College London in partnership with Public Health England (PHE) in collaboration with Imperial College London, London, UK.
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Muehling LM, Lawrence MG, Woodfolk JA. Pathogenic CD4 + T cells in patients with asthma. J Allergy Clin Immunol 2017; 140:1523-1540. [PMID: 28442213 PMCID: PMC5651193 DOI: 10.1016/j.jaci.2017.02.025] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 02/07/2017] [Accepted: 02/20/2017] [Indexed: 02/08/2023]
Abstract
Asthma encompasses a variety of clinical phenotypes that involve distinct T cell-driven inflammatory processes. Improved understanding of human T-cell biology and the influence of innate cytokines on T-cell responses at the epithelial barrier has led to new asthma paradigms. This review captures recent knowledge on pathogenic CD4+ T cells in asthmatic patients by drawing on observations in mouse models and human disease. In patients with allergic asthma, TH2 cells promote IgE-mediated sensitization, airway hyperreactivity, and eosinophilia. Here we discuss recent discoveries in the myriad molecular pathways that govern the induction of TH2 differentiation and the critical role of GATA-3 in this process. We elaborate on how cross-talk between epithelial cells, dendritic cells, and innate lymphoid cells translates to T-cell outcomes, with an emphasis on the actions of thymic stromal lymphopoietin, IL-25, and IL-33 at the epithelial barrier. New concepts on how T-cell skewing and epitope specificity are shaped by multiple environmental cues integrated by dendritic cell "hubs" are discussed. We also describe advances in understanding the origins of atypical TH2 cells in asthmatic patients, the role of TH1 cells and other non-TH2 types in asthmatic patients, and the features of T-cell pathogenicity at the single-cell level. Progress in technologies that enable highly multiplexed profiling of markers within a single cell promise to overcome barriers to T-cell discovery in human asthmatic patients that could transform our understanding of disease. These developments, along with novel T cell-based therapies, position us to expand the assortment of molecular targets that could facilitate personalized treatments.
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Affiliation(s)
- Lyndsey M Muehling
- Allergy Division, Department of Medicine, University of Virginia School of Medicine, Charlottesville, Va
| | - Monica G Lawrence
- Allergy Division, Department of Medicine, University of Virginia School of Medicine, Charlottesville, Va
| | - Judith A Woodfolk
- Allergy Division, Department of Medicine, University of Virginia School of Medicine, Charlottesville, Va.
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Toussaint M, Jackson DJ, Swieboda D, Guedán A, Tsourouktsoglou TD, Ching YM, Radermecker C, Makrinioti H, Aniscenko J, Bartlett NW, Edwards MR, Solari R, Farnir F, Papayannopoulos V, Bureau F, Marichal T, Johnston SL. Host DNA released by NETosis promotes rhinovirus-induced type-2 allergic asthma exacerbation. Nat Med 2017; 23:681-691. [PMID: 28459437 PMCID: PMC5821220 DOI: 10.1038/nm.4332] [Citation(s) in RCA: 238] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 04/04/2017] [Indexed: 02/06/2023]
Abstract
Respiratory viral infections represent the most common cause of allergic asthma exacerbations. Amplification of the type-2 immune response is strongly implicated in asthma exacerbation, but how virus infection boosts type-2 responses is poorly understood. We report a significant correlation between the release of host double-stranded DNA (dsDNA) following rhinovirus infection and the exacerbation of type-2 allergic inflammation in humans. In a mouse model of allergic airway hypersensitivity, we show that rhinovirus infection triggers dsDNA release associated with the formation of neutrophil extracellular traps (NETs), known as NETosis. We further demonstrate that inhibiting NETosis by blocking neutrophil elastase or by degrading NETs with DNase protects mice from type-2 immunopathology. Furthermore, the injection of mouse genomic DNA alone is sufficient to recapitulate many features of rhinovirus-induced type-2 immune responses and asthma pathology. Thus, NETosis and its associated extracellular dsDNA contribute to the pathogenesis and may represent potential therapeutic targets of rhinovirus-induced asthma exacerbations.
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Affiliation(s)
- Marie Toussaint
- Airway Disease Infection Section, National Heart and Lung Institute (NHLI), Imperial College London, London, UK
- Medical Research Council (MRC) and Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
| | - David J Jackson
- Airway Disease Infection Section, National Heart and Lung Institute (NHLI), Imperial College London, London, UK
- Medical Research Council (MRC) and Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
- Imperial College Healthcare NHS Trust, London, UK
- Guy's and St Thomas' NHS Trust, London, UK
| | - Dawid Swieboda
- Airway Disease Infection Section, National Heart and Lung Institute (NHLI), Imperial College London, London, UK
- Medical Research Council (MRC) and Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
| | - Anabel Guedán
- Airway Disease Infection Section, National Heart and Lung Institute (NHLI), Imperial College London, London, UK
- Medical Research Council (MRC) and Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
| | | | - Yee Man Ching
- Airway Disease Infection Section, National Heart and Lung Institute (NHLI), Imperial College London, London, UK
- Medical Research Council (MRC) and Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
| | - Coraline Radermecker
- Laboratory of Cellular and Molecular Immunology, Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), University of Liège, Liège, Belgium
- Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
| | - Heidi Makrinioti
- Airway Disease Infection Section, National Heart and Lung Institute (NHLI), Imperial College London, London, UK
- Medical Research Council (MRC) and Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
| | - Julia Aniscenko
- Airway Disease Infection Section, National Heart and Lung Institute (NHLI), Imperial College London, London, UK
- Medical Research Council (MRC) and Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
| | - Nathan W Bartlett
- Airway Disease Infection Section, National Heart and Lung Institute (NHLI), Imperial College London, London, UK
- Medical Research Council (MRC) and Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
| | - Michael R Edwards
- Airway Disease Infection Section, National Heart and Lung Institute (NHLI), Imperial College London, London, UK
- Medical Research Council (MRC) and Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
| | - Roberto Solari
- Airway Disease Infection Section, National Heart and Lung Institute (NHLI), Imperial College London, London, UK
- Medical Research Council (MRC) and Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
| | - Frédéric Farnir
- Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
- Fundamental and Applied Research for Animals &Health, University of Liège, Liège, Belgium
| | | | - Fabrice Bureau
- Laboratory of Cellular and Molecular Immunology, Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), University of Liège, Liège, Belgium
- Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
- WELBIO, Walloon Excellence in Life Sciences and Biotechnology, Wallonia, Belgium
| | - Thomas Marichal
- Laboratory of Cellular and Molecular Immunology, Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA), University of Liège, Liège, Belgium
- Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
| | - Sebastian L Johnston
- Airway Disease Infection Section, National Heart and Lung Institute (NHLI), Imperial College London, London, UK
- Medical Research Council (MRC) and Asthma UK Centre in Allergic Mechanisms of Asthma, London, UK
- Imperial College Healthcare NHS Trust, London, UK
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