1
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Inhibition effect of PPAR-γ signaling on mast cell-mediated allergic inflammation through down-regulation of PAK1/ NF-κB activation. Int Immunopharmacol 2022; 108:108692. [DOI: 10.1016/j.intimp.2022.108692] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 02/17/2022] [Accepted: 03/07/2022] [Indexed: 12/14/2022]
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2
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Fan P, Liu Z, Zheng M, Chen M, Xu Y, Zhao D. Respiratory syncytial virus nonstructural protein 1 breaks immune tolerance in mice by downregulating Tregs through TSLP-OX40/OX40L-mTOR axis. Mol Immunol 2021; 138:20-30. [PMID: 34332182 DOI: 10.1016/j.molimm.2021.07.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 07/07/2021] [Accepted: 07/23/2021] [Indexed: 10/20/2022]
Abstract
Respiratory syncytial virus (RSV) infection in early life is associated strongly with the subsequent development and exacerbation of asthma, however, the mechanism is still ambiguous. In this study, we identified that RSV nonstructural protein (NS) 1 plays a critical role. Plasmid-mediated overexpression of NS1 induced significant airway hyperresponsiveness, eosinophilia, and mucus hyperproduction in mice. In the pNS1 group, there were markedly elevated proportions of Th2 and Th17 cells, while Th1 and Foxp3+ regulatory T cells (Tregs) significantly declined compared with the control group. Serum concentrations of interleukin (IL)-4, IL-5, IL-6, IL-17, transforming growth factor-beta, and tumor necrosis factor-alpha increased but levels of interferon-gamma and interleukin-10 declined in pNS1 group. Besides, NS1 caused a significant rise of serum thymic stromal lymphopoietin (TSLP) and OX40L levels, and a neutralizing mAb anti-OX40L was capable of promoting RSV clearance and attenuating the airway allergic inflammation caused by pNS1. Otherwise, OX40L-blocking counteracts the inhibitory effect of pNS1 on Tregs in the spleen. RSV NS1 caused elevated levels of phospho-AKT, phospho-mTOR, and phospho-S6K1, which were partially attenuated by anti-OX40L. Moreover, a specific inhibitor of mTORC1 significantly relieved the inhibition of Foxp3 expression and Tregs differentiation. Together, the data indicate that RSV NS1 protein breaks immune tolerance and induces airway inflammation and hyperresponsiveness in mice. In this process, NS1-stimulated TSLP and OX40L play a major role by inhibiting the induction of Tregs, which is at least partially mediated by modulating AKT-mTOR signaling pathways.
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Affiliation(s)
- Panpan Fan
- Department of Pediatrics, Children's Digital Health and Data Center, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - Zhi Liu
- Department of Pediatrics, Children's Digital Health and Data Center, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - Mei Zheng
- Department of Pediatrics, Children's Digital Health and Data Center, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - Ming Chen
- Department of Pediatrics, Children's Digital Health and Data Center, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - Yueshi Xu
- Department of Pediatrics, Children's Digital Health and Data Center, Zhongnan Hospital of Wuhan University, Wuhan, China.
| | - Dongchi Zhao
- Department of Pediatrics, Children's Digital Health and Data Center, Zhongnan Hospital of Wuhan University, Wuhan, China.
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3
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Zaini A, Fulford TS, Grumont RJ, Runting J, Rodrigues G, Ng J, Gerondakis S, Zaph C, Scheer S. c-Rel Is Required for IL-33-Dependent Activation of ILC2s. Front Immunol 2021; 12:667922. [PMID: 34194431 PMCID: PMC8236704 DOI: 10.3389/fimmu.2021.667922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 05/19/2021] [Indexed: 11/22/2022] Open
Abstract
Group 2 innate lymphoid cells (ILC2s) are emerging as important cellular regulators of homeostatic and disease-associated immune processes. The cytokine interleukin-33 (IL-33) promotes ILC2-dependent inflammation and immunity, with IL-33 having been shown to activate NF-κB in a wide variety of cell types. However, it is currently unclear which NF-κB members play an important role in IL-33-dependent ILC2 biology. Here, we identify the NF-κB family member c-Rel as a critical component of the IL-33-dependent activation of ILC2s. Although c-Rel is dispensable for ILC2 development, it is critical for ILC2 function in the lung, with c-Rel-deficient (c-Rel-/- ) mice present a significantly reduced response to papain- and IL-33-induced lung inflammation. We also show that the absence of c-Rel reduces the IL-33-dependent expansion of ILC2 precursors and lower levels of IL-5 and IL-13 cytokine production by mature ILC2s in the lung. Together, these results identify the IL-33-c-Rel axis as a central control point of ILC2 activation and function.
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Affiliation(s)
- Aidil Zaini
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Thomas S. Fulford
- Department of Microbiology and Immunology, University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Raelene J. Grumont
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Jessica Runting
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Grace Rodrigues
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Judy Ng
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Steve Gerondakis
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Colby Zaph
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
| | - Sebastian Scheer
- Infection and Immunity Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia
- Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC, Australia
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4
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Yuan F, Jiang L, Li Q, Sokulsky L, Wanyan Y, Wang L, Liu X, Zhou L, Tay HL, Zhang G, Yang M, Li F. A Selective α7 Nicotinic Acetylcholine Receptor Agonist, PNU-282987, Attenuates ILC2s Activation and Alternaria-Induced Airway Inflammation. Front Immunol 2021; 11:598165. [PMID: 33597946 PMCID: PMC7883686 DOI: 10.3389/fimmu.2020.598165] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 12/16/2020] [Indexed: 01/02/2023] Open
Abstract
Background The anti-inflammatory effect of an α7nAChR agonist, PNU-282987, has previously been explored in the context of inflammatory disease. However, the effects of PNU-282987 on type 2 innate lymphoid cells (ILC2s)-mediated allergic airway inflammation has not yet been established. Aims To determine the effects of PNU-282987 on the function of ILC2s in the context of IL-33– or Alternaria Alternata (AA)– induced airway inflammation. Methods PNU-282987 was administered to mice that received recombinant IL-33 or AA intranasal challenges. Lung histological analysis and flow cytometry were performed to determine airway inflammation and the infiltration and activation of ILC2s. The previously published α7nAChR agonist GTS-21 was employed as a comparable reagent. ILC2s were isolated from murine lung tissue and cultured in vitro in the presence of IL-33, IL-2, and IL-7 with/without either PNU-282987 or GTS-21. The expression of the transcription factors GATA3, IKK, and NF-κB were also determined. Results PNU-282987 and GTS-21 significantly reduced goblet cell hyperplasia in the airway, eosinophil infiltration, and ILC2s numbers in BALF, following IL-33 or AA challenge. In vitro IL-33 stimulation of isolated lung ILC2s showed a reduction of GATA3 and Ki67 in response to PNU-282987 or GTS-21 treatments. There was a significant reduction in IKK and NF-κB phosphorylation in the PNU-282987–treated group when compared to the GTS-21–treated ILC2s. Conclusion PNU-282987 inhibits ILC2-associated airway inflammation, where its effects were comparable to that of GTS-21.
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Affiliation(s)
- Fang Yuan
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China.,Department of Medical Laboratory, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Lili Jiang
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Qianyang Li
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Leon Sokulsky
- Priority Research Centre for Healthy Lungs, Faculty of Health and Hunter Medical Research Institute, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
| | - Yuanyuan Wanyan
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Lingli Wang
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Xiaojie Liu
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Lujia Zhou
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Hock L Tay
- Priority Research Centre for Healthy Lungs, Faculty of Health and Hunter Medical Research Institute, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
| | - Guojun Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ming Yang
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China.,Priority Research Centre for Healthy Lungs, Faculty of Health and Hunter Medical Research Institute, School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, NSW, Australia
| | - Fuguang Li
- Academy of Medical Sciences and Department of Immunology, College of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
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5
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Guzmán M, Miglio M, Keitelman I, Shiromizu CM, Sabbione F, Fuentes F, Trevani AS, Giordano MN, Galletti JG. Transient tear hyperosmolarity disrupts the neuroimmune homeostasis of the ocular surface and facilitates dry eye onset. Immunology 2020; 161:148-161. [PMID: 32702135 PMCID: PMC7496787 DOI: 10.1111/imm.13243] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 06/24/2020] [Accepted: 07/06/2020] [Indexed: 12/27/2022] Open
Abstract
Dry eye disease (DED) is a highly prevalent ocular surface disorder with neuroimmune pathophysiology. Tear hyperosmolarity (THO), a frequent finding in affected patients, is considered a key element in DED pathogenesis, yet existing animal models are based on subjecting the ocular surface to the more complex desiccating stress - decreased tear production and/or increased evaporation - instead of strict hyperosmolar stress. Here we characterized a murine model of THO that does not involve desiccating stress, thus allowing us to dissect the contribution of THO to DED. Our results showed that THO is sufficient to disrupt neuroimmune homeostasis of the ocular surface in mice, and thus reproduce many sub-clinical DED findings. THO activated nuclear factor-κB signalling in conjunctival epithelial cells and increased dendritic cell recruitment and maturation, leading to more activated (CD69+ ) and memory (CD62lo CD44hi) CD4+ T-cells in the eye-draining lymph nodes. Ultimately, THO impaired the development of ocular mucosal tolerance to a topical surrogate antigen in a chain of events that included epithelial nuclear factor-κB signalling and activation of transient receptor potential vanilloid 1 as the probable hypertonicity sensor. Also, THO reduced the density of corneal intraepithelial nerves and terminals, and sensitized the ocular surface to hypertonicity. Finally, the adoptive transfer of T-cells from THO mice to naïve recipients under mild desiccating stress favoured DED development, showing that THO is enough to trigger an actual pathogenic T-cell response. Our results altogether demonstrate that THO is a critical initiating factor in DED development.
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Affiliation(s)
- Mauricio Guzmán
- Laboratorio de Inmunidad InnataInstituto de Medicina ExperimentalAcademia Nacional de Medicina/CONICETBuenos AiresArgentina
| | - Maximiliano Miglio
- Laboratorio de Inmunidad InnataInstituto de Medicina ExperimentalAcademia Nacional de Medicina/CONICETBuenos AiresArgentina
| | - Irene Keitelman
- Laboratorio de Inmunidad InnataInstituto de Medicina ExperimentalAcademia Nacional de Medicina/CONICETBuenos AiresArgentina
| | - Carolina Maiumi Shiromizu
- Laboratorio de Inmunidad InnataInstituto de Medicina ExperimentalAcademia Nacional de Medicina/CONICETBuenos AiresArgentina
| | - Florencia Sabbione
- Laboratorio de Inmunidad InnataInstituto de Medicina ExperimentalAcademia Nacional de Medicina/CONICETBuenos AiresArgentina
| | - Federico Fuentes
- Laboratorio de Inmunidad InnataInstituto de Medicina ExperimentalAcademia Nacional de Medicina/CONICETBuenos AiresArgentina
| | - Analía S. Trevani
- Laboratorio de Inmunidad InnataInstituto de Medicina ExperimentalAcademia Nacional de Medicina/CONICETBuenos AiresArgentina
| | - Mirta N. Giordano
- Laboratorio de Inmunidad InnataInstituto de Medicina ExperimentalAcademia Nacional de Medicina/CONICETBuenos AiresArgentina
| | - Jeremías G. Galletti
- Laboratorio de Inmunidad InnataInstituto de Medicina ExperimentalAcademia Nacional de Medicina/CONICETBuenos AiresArgentina
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6
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Mechanisms of food allergy. J Allergy Clin Immunol 2019; 141:11-19. [PMID: 29307410 DOI: 10.1016/j.jaci.2017.11.005] [Citation(s) in RCA: 152] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 11/10/2017] [Accepted: 11/14/2017] [Indexed: 01/08/2023]
Abstract
Although oral tolerance is the normal physiologic response to ingested antigens, a breakdown in this process appears to have occurred in the past 2 decades, leading to an increasing prevalence of sensitization to food allergens. Over the past decade, basic research has intensified in an attempt to better understand the mechanisms leading to sensitization and disease versus desensitization and short- and long-term tolerance. In this review we assess various factors that can influence tissue and immune responses to food antigens, the current understanding of immune tolerance development, the role of the gastrointestinal microbiota, and current knowledge regarding immunologic mechanisms involved in desensitization and sustained unresponsiveness, although perhaps the latter is more appropriately termed remission.
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7
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Ouchi R, Kawano T, Yoshida H, Ishii M, Miyasaka T, Ohkawara Y, Takayanagi M, Takahashi T, Ohno I. Maternal Separation as Early-Life Stress Causes Enhanced Allergic Airway Responses by Inhibiting Respiratory Tolerance in Mice. TOHOKU J EXP MED 2018; 246:155-165. [PMID: 30405003 DOI: 10.1620/tjem.246.155] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Epidemiologic studies indicate that exposure to psychosocial stress in early childhood is a risk factor of adult-onset asthma, but the mechanisms of this relationship are poorly understood. Therefore, we examined whether early-life stress increases susceptibility to adult-onset asthma by inhibiting the development of respiratory tolerance. Neonatal BALB/c female mice were aerosolized with ovalbumin (OVA) to induce immune tolerance prior to immune sensitization with an intraperitoneal injection of OVA and the adjuvant aluminum hydroxide. Maternal separation (MS) was applied as an early-life stressor during the induction phase of immune tolerance. The mice were challenged with OVA aerosol in adulthood, and allergic airway responses were evaluated, including airway hyper-responsiveness to inhaled methacholine, inflammatory cell infiltration, bronchoalveolar lavage fluid levels of interleukin (IL)-4, IL-5, and IL-13, and serum OVA-specific IgE. We then evaluated the effects of MS on the development of regulatory T (Treg) cells in bronchial lymph nodes (BLN) and on splenocyte proliferation and cytokine expression. In mice that underwent MS and OVA tolerization, the allergic airway responses and OVA-induced proliferation and IL-4 expression of splenocytes were significantly enhanced. Furthermore, exposure to MS was associated with a lower number of Treg cells in the BLN. These findings suggest that exposure to early-life stress prevents the acquisition of respiratory tolerance to inhaled antigen due to insufficient Treg cell development, resulting in Th2-biased sensitization and asthma onset. We provide the evidence for inhibitory effects of early-life stress on immune tolerance. The present findings may help to clarify the pathogenesis of adult-onset asthma.
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Affiliation(s)
- Ryusuke Ouchi
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University
| | - Tasuku Kawano
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University
| | - Hitomi Yoshida
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University
| | - Masato Ishii
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University
| | - Tomomitsu Miyasaka
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University
| | - Yuichi Ohkawara
- Division of Experimental Allergy and Immunology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University
| | - Motoaki Takayanagi
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University
| | - Tomoko Takahashi
- Division of Pathophysiology, Department of Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University
| | - Isao Ohno
- Center for Medical Education, Faculty of Medicine, Tohoku Medical and Pharmaceutical University
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8
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Guzmán M, Miglio MS, Zgajnar NR, Colado A, Almejún MB, Keitelman IA, Sabbione F, Fuentes F, Trevani AS, Giordano MN, Galletti JG. The mucosal surfaces of both eyes are immunologically linked by a neurogenic inflammatory reflex involving TRPV1 and substance P. Mucosal Immunol 2018; 11:1441-1453. [PMID: 29867077 DOI: 10.1038/s41385-018-0040-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 04/08/2018] [Accepted: 04/15/2018] [Indexed: 02/04/2023]
Abstract
Immunological interdependence between the two eyes has been reported for the cornea and the retina but not for the ocular mucosal surface. Intriguingly, patients frequently report ocular surface-related symptoms in the other eye after unilateral ocular surgery. Here we show how unilateral eye injuries in mice affect the mucosal immune response of the opposite ocular surface. We report that, despite the lack of lymphatic cross-drainage, a neurogenic inflammatory reflex in the contralateral conjunctiva is sufficient to increase, first, epithelial nuclear factor kappa B signaling, then, dendritic cell maturation, and finally, expansion of effector, instead of regulatory, T cells in the draining lymph node, leading to disrupted ocular mucosal tolerance. We also show that damage to ocular surface nerves is required. Using pharmacological inhibitors and agonists, we identified transient receptor potential vanilloid 1 (TRPV1) channel as the receptor sensing tissue damage in the injured eye and substance P released in the opposite ocular surface as the effector of the sympathetic response. Finally, blocking either step prevented subsequent ocular allergic reactions in the opposite eye in a unilateral corneal alkali burn model. This study demonstrates that both ocular surfaces are immunologically linked and suggests potential therapeutic targets for intervention.
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Affiliation(s)
- Mauricio Guzmán
- Immunology Laboratory, Institute of Experimental Medicine (IMEX), National Academy of Medicine/CONICET, Buenos Aires, Argentina
| | - Maximiliano S Miglio
- Immunology Laboratory, Institute of Experimental Medicine (IMEX), National Academy of Medicine/CONICET, Buenos Aires, Argentina
| | - Nadia R Zgajnar
- Nuclear Receptors Laboratory, Institute of Experimental Biology & Medicine (IBYME)-CONICET, Buenos Aires, Argentina
| | - Ana Colado
- Immunology Laboratory, Institute of Experimental Medicine (IMEX), National Academy of Medicine/CONICET, Buenos Aires, Argentina
| | - María B Almejún
- Immunology Laboratory, Institute of Experimental Medicine (IMEX), National Academy of Medicine/CONICET, Buenos Aires, Argentina
| | - Irene A Keitelman
- Immunology Laboratory, Institute of Experimental Medicine (IMEX), National Academy of Medicine/CONICET, Buenos Aires, Argentina
| | - Florencia Sabbione
- Immunology Laboratory, Institute of Experimental Medicine (IMEX), National Academy of Medicine/CONICET, Buenos Aires, Argentina
| | - Federico Fuentes
- Immunology Laboratory, Institute of Experimental Medicine (IMEX), National Academy of Medicine/CONICET, Buenos Aires, Argentina
| | - Analía S Trevani
- Immunology Laboratory, Institute of Experimental Medicine (IMEX), National Academy of Medicine/CONICET, Buenos Aires, Argentina.,Microbiology, Parasitology & Immunology Department, School of Medicine, University of Buenos Aires, Buenos Aires, Argentina
| | - Mirta N Giordano
- Immunology Laboratory, Institute of Experimental Medicine (IMEX), National Academy of Medicine/CONICET, Buenos Aires, Argentina.,Microbiology, Parasitology & Immunology Department, School of Medicine, University of Buenos Aires, Buenos Aires, Argentina
| | - Jeremías G Galletti
- Immunology Laboratory, Institute of Experimental Medicine (IMEX), National Academy of Medicine/CONICET, Buenos Aires, Argentina.
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9
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Qian X, Aboushousha R, van de Wetering C, Chia SB, Amiel E, Schneider RW, van der Velden JLJ, Lahue KG, Hoagland DA, Casey DT, Daphtary N, Ather JL, Randall MJ, Aliyeva M, Black KE, Chapman DG, Lundblad LKA, McMillan DH, Dixon AE, Anathy V, Irvin CG, Poynter ME, Wouters EFM, Vacek PM, Henket M, Schleich F, Louis R, van der Vliet A, Janssen-Heininger YMW. IL-1/inhibitory κB kinase ε-induced glycolysis augment epithelial effector function and promote allergic airways disease. J Allergy Clin Immunol 2018; 142:435-450.e10. [PMID: 29108965 PMCID: PMC6278819 DOI: 10.1016/j.jaci.2017.08.043] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 06/30/2017] [Accepted: 08/23/2017] [Indexed: 01/03/2023]
Abstract
BACKGROUND Emerging studies suggest that enhanced glycolysis accompanies inflammatory responses. Virtually nothing is known about the relevance of glycolysis in patients with allergic asthma. OBJECTIVES We sought to determine whether glycolysis is altered in patients with allergic asthma and to address its importance in the pathogenesis of allergic asthma. METHODS We examined alterations in glycolysis in sputum samples from asthmatic patients and primary human nasal cells and used murine models of allergic asthma, as well as primary mouse tracheal epithelial cells, to evaluate the relevance of glycolysis. RESULTS In a murine model of allergic asthma, glycolysis was induced in the lungs in an IL-1-dependent manner. Furthermore, administration of IL-1β into the airways stimulated lactate production and expression of glycolytic enzymes, with notable expression of lactate dehydrogenase A occurring in the airway epithelium. Indeed, exposure of mouse tracheal epithelial cells to IL-1β or IL-1α resulted in increased glycolytic flux, glucose use, expression of glycolysis genes, and lactate production. Enhanced glycolysis was required for IL-1β- or IL-1α-mediated proinflammatory responses and the stimulatory effects of IL-1β on house dust mite (HDM)-induced release of thymic stromal lymphopoietin and GM-CSF from tracheal epithelial cells. Inhibitor of κB kinase ε was downstream of HDM or IL-1β and required for HDM-induced glycolysis and pathogenesis of allergic airways disease. Small interfering RNA ablation of lactate dehydrogenase A attenuated HDM-induced increases in lactate levels and attenuated HDM-induced disease. Primary nasal epithelial cells from asthmatic patients intrinsically produced more lactate compared with cells from healthy subjects. Lactate content was significantly higher in sputum supernatants from asthmatic patients, notably those with greater than 61% neutrophils. A positive correlation was observed between sputum lactate and IL-1β levels, and lactate content correlated negatively with lung function. CONCLUSIONS Collectively, these findings demonstrate that IL-1β/inhibitory κB kinase ε signaling plays an important role in HDM-induced glycolysis and pathogenesis of allergic airways disease.
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Affiliation(s)
- Xi Qian
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Reem Aboushousha
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Cheryl van de Wetering
- Department of Pulmonology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Shi B Chia
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Eyal Amiel
- Department of Medical Laboratory and Radiation, University of Vermont College of Nursing and Health Sciences, Burlington, Vt
| | - Robert W Schneider
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Jos L J van der Velden
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Karolyn G Lahue
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Daisy A Hoagland
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Dylan T Casey
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Nirav Daphtary
- Department of Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Jennifer L Ather
- Department of Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Matthew J Randall
- Department of Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Minara Aliyeva
- Department of Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Kendall E Black
- Department of Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - David G Chapman
- Department of Medicine, University of Vermont College of Medicine, Burlington, Vt; Woolcock Institute of Medical Research, Sydney Medical School, University of Sydney, Sydney, Australia
| | - Lennart K A Lundblad
- Department of Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - David H McMillan
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Anne E Dixon
- Department of Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Vikas Anathy
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Charles G Irvin
- Department of Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Matthew E Poynter
- Department of Medicine, University of Vermont College of Medicine, Burlington, Vt
| | - Emiel F M Wouters
- Department of Pulmonology, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Pamela M Vacek
- Medical Biostatistics Unit, University of Vermont College of Medicine, Burlington, Vt
| | - Monique Henket
- Department of Respiratory Medicine, CHU Sart-TilmanB35, Liege, Belgium
| | - Florence Schleich
- Department of Respiratory Medicine, CHU Sart-TilmanB35, Liege, Belgium
| | - Renaud Louis
- Department of Respiratory Medicine, CHU Sart-TilmanB35, Liege, Belgium
| | - Albert van der Vliet
- Department of Pathology and Laboratory Medicine, University of Vermont College of Medicine, Burlington, Vt
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10
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Roberts G, Boyle R, Bryce PJ, Crane J, Hogan SP, Saglani S, Wickman M, Woodfolk JA. Developments in the field of allergy mechanisms in 2015 through the eyes of Clinical & Experimental Allergy. Clin Exp Allergy 2017; 46:1248-57. [PMID: 27682977 DOI: 10.1111/cea.12823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
In the first of two papers we described the development in the field of allergy mechanisms as described by Clinical and Experimental Allergy in 2015. Experimental models of allergic disease, basic mechanisms, clinical mechanisms and allergens are all covered. A second paper will cover clinical aspects.
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Affiliation(s)
- G Roberts
- Clinical and Experimental Sciences and Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK. .,NIHR Southampton Respiratory Biomedical Research Unit, University Hospital Southampton NHS Foundation Trust, Southampton, UK. .,The David Hide Asthma and Allergy Research Centre, St Mary's Hospital, Isle of Wight, UK.
| | - R Boyle
- Paediatric Research Unit, Imperial College London, London, UK
| | - P J Bryce
- Division of Allergy-Immunology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - J Crane
- Department of Medicine, University of Otago Wellington, Wellington, New Zealand
| | - S P Hogan
- Division of Allergy and Immunology, Department of Pediatrics, Cincinnati Children's Hospital Medical Center, University of Cincinnati School of Medicine, Cincinnati, OH, USA
| | - S Saglani
- National Heart & Lung Institute, Imperial College London, London, UK
| | - M Wickman
- Institute of Environmental Medicine, Karolinska Institute, Stockholm, Sweden
| | - J A Woodfolk
- Allergy Division, Department of Medicine, University of Virginia School of Medicine, Charlottesville, VA, USA
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11
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McDermott AJ, Tumey TA, Huang M, Hull CM, Klein BS. Inhaled Cryptococcus neoformans elicits allergic airway inflammation independent of Nuclear Factor Kappa B signalling in lung epithelial cells. Immunology 2017; 153:513-522. [PMID: 29055116 DOI: 10.1111/imm.12853] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 09/15/2017] [Accepted: 10/13/2017] [Indexed: 01/04/2023] Open
Abstract
Pulmonary challenge with the ubiquitous fungus Cryptococcus neoformans results in allergic airway inflammation (AAI) characterized by robust recruitment of eosinophils and T cells producing type 2 cytokines to the lungs. Previous studies have demonstrated a critical role for Nuclear Factor Kappa B (NF-κB) activation within lung epithelial cells (LECs) in driving AAI in response to protein allergens, yet the role of LEC-intrinsic NF-κB in promoting AAI following exposure to C. neoformans is poorly understood. To investigate the role of LEC-intrinsic NF-κB in promoting AAI following C. neoformans challenge, we used IKK∆LEC mice, which lack canonical NF-κB activation specifically within LECs. IKK∆LEC and littermate control mice were intranasally challenged with 106 CFU of C. neoformans strain 52D, and lung tissues were collected at 7, 14 and 21 days post infection to assess the development of AAI. Notably, the absence of epithelial NF-κB signalling did not affect the magnitude or kinetics of lung eosinophilia when compared with the response in wild-type control mice. The total numbers of lung T cells producing the type 2 cytokines interleukin-5 and interleukin-13 were also unchanged in IKK∆LEC mice. Furthermore, IKK∆LEC mice showed no defect in the recruitment of protective interferon-γ-producing CD4 T cells to the lungs, fungal clearance, or host survival compared with control mice. Immunofluorescence imaging surprisingly revealed no evidence of nuclear localization of NF-κB in LECs in response to C. neoformans challenge, indicating that NF-κB is not activated within these cells. Taken together, these data strongly suggest that NF-κB signalling within LECs does not promote AAI observed in response to C. neoformans.
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Affiliation(s)
- Andrew J McDermott
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Tyler A Tumey
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Mingwei Huang
- Department of Biomolecular Chemistry, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - Christina M Hull
- Department of Biomolecular Chemistry, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA.,Department of Medical Microbiology and Immunology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Bruce S Klein
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.,Department of Medical Microbiology and Immunology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA.,Department of Internal Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
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12
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Xu J, Guardado J, Hoffman R, Xu H, Namas R, Vodovotz Y, Xu L, Ramadan M, Brown J, Turnquist HR, Billiar TR. IL33-mediated ILC2 activation and neutrophil IL5 production in the lung response after severe trauma: A reverse translation study from a human cohort to a mouse trauma model. PLoS Med 2017; 14:e1002365. [PMID: 28742815 PMCID: PMC5526517 DOI: 10.1371/journal.pmed.1002365] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Accepted: 06/20/2017] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The immunosuppression and immune dysregulation that follows severe injury includes type 2 immune responses manifested by elevations in interleukin (IL) 4, IL5, and IL13 early after injury. We hypothesized that IL33, an alarmin released early after tissue injury and a known regulator of type 2 immunity, contributes to the early type 2 immune responses after systemic injury. METHODS AND FINDINGS Blunt trauma patients admitted to the trauma intensive care unit of a level I trauma center were enrolled in an observational study that included frequent blood sampling. Dynamic changes in IL33 and soluble suppression of tumorigenicity 2 (sST2) levels were measured in the plasma and correlated with levels of the type 2 cytokines and nosocomial infection. Based on the observations in humans, mechanistic experiments were designed in a mouse model of resuscitated hemorrhagic shock and tissue trauma (HS/T). These experiments utilized wild-type C57BL/6 mice, IL33-/- mice, B6.C3(Cg)-Rorasg/sg mice deficient in group 2 innate lymphoid cells (ILC2), and C57BL/6 wild-type mice treated with anti-IL5 antibody. Severely injured human blunt trauma patients (n = 472, average injury severity score [ISS] = 20.2) exhibited elevations in plasma IL33 levels upon admission and over time that correlated positively with increases in IL4, IL5, and IL13 (P < 0.0001). sST2 levels also increased after injury but in a delayed manner compared with IL33. The increases in IL33 and sST2 were significantly greater in patients that developed nosocomial infection and organ dysfunction than similarly injured patients that did not (P < 0.05). Mechanistic studies were carried out in a mouse model of HS/T that recapitulated the early increase in IL33 and delayed increase in sST2 in the plasma (P < 0.005). These studies identified a pathway where IL33 induces ILC2 activation in the lung within hours of HS/T. ILC2 IL5 up-regulation induces further IL5 expression by CXCR2+ lung neutrophils, culminating in early lung injury. The major limitations of this study are the descriptive nature of the human study component and the impact of the potential differences between human and mouse immune responses to polytrauma. Also, the studies performed did not permit us to make conclusions about the impact of IL33 on pulmonary function. CONCLUSIONS These results suggest that IL33 may initiate early detrimental type 2 immune responses after trauma through ILC2 regulation of neutrophil IL5 production. This IL33-ILC2-IL5-neutrophil axis defines a novel regulatory role for ILC2 in acute lung injury that could be targeted in trauma patients prone to early lung dysfunction.
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Affiliation(s)
- Jing Xu
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- State Key Laboratory of Trauma, Burns and Combined Injury, Second Department of Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing, P. R. China
| | - Jesse Guardado
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Rosemary Hoffman
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Hui Xu
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- State Key Laboratory of Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, P. R. China
| | - Rami Namas
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Yoram Vodovotz
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Li Xu
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- Department of Emergency Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, P. R. China
| | - Mostafa Ramadan
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Joshua Brown
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Heth R. Turnquist
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- * E-mail: (TRB); (HRT)
| | - Timothy R. Billiar
- Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
- * E-mail: (TRB); (HRT)
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13
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Dixon AE, Poynter ME. Mechanisms of Asthma in Obesity. Pleiotropic Aspects of Obesity Produce Distinct Asthma Phenotypes. Am J Respir Cell Mol Biol 2017; 54:601-8. [PMID: 26886277 DOI: 10.1165/rcmb.2016-0017ps] [Citation(s) in RCA: 104] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The majority of patients with severe or difficult-to-control asthma in the United States are obese. Epidemiological studies have clearly established that obese patients tend to have worse asthma control and increased hospitalizations and do not respond to standard controller therapy as well as lean patients with asthma. Less clear are the mechanistic underpinnings for the striking clinical differences between lean and obese patients with asthma. Because obesity is principally a disorder of metabolism and energy regulation, processes fundamental to the function of every cell and system within the body, it is not surprising that it affects the respiratory system; it is perhaps surprising that it has taken so long to appreciate how dysfunctional metabolism and energy regulation lead to severe airway disease. Although early investigations focused on identifying a common factor in obesity that could promote airway disease, an appreciation has emerged that the asthma of obesity is a manifestation of multiple anomalies related to obesity affecting all the different pathways that cause asthma, and likely also to de novo airway dysfunction. Consequently, all the phenotypes of asthma currently recognized in lean patients (which are profoundly modified by obesity), as well as those unique to one's obesity endotype, likely contribute to obese asthma in a particular individual. This perspective reviews what we have learned from clinical studies and animal models about the phenotypes of asthma in obesity, which show how specific aspects of obesity and altered metabolism might lead to de novo airway disease and profoundly modify existing airway disease.
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Affiliation(s)
- Anne E Dixon
- Department of Medicine, University of Vermont, Burlington, Vermont
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14
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Habibovic A, Hristova M, Heppner DE, Danyal K, Ather JL, Janssen-Heininger YM, Irvin CG, Poynter ME, Lundblad LK, Dixon AE, Geiszt M, van der Vliet A. DUOX1 mediates persistent epithelial EGFR activation, mucous cell metaplasia, and airway remodeling during allergic asthma. JCI Insight 2016; 1:e88811. [PMID: 27812543 DOI: 10.1172/jci.insight.88811] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Chronic inflammation with mucous metaplasia and airway remodeling are hallmarks of allergic asthma, and these outcomes have been associated with enhanced expression and activation of EGFR signaling. Here, we demonstrate enhanced expression of EGFR ligands such as amphiregulin as well as constitutive EGFR activation in cultured nasal epithelial cells from asthmatic subjects compared with nonasthmatic controls and in lung tissues of mice during house dust mite-induced (HDM-induced) allergic inflammation. EGFR activation was associated with cysteine oxidation within EGFR and the nonreceptor tyrosine kinase Src, and both amphiregulin production and oxidative EGFR activation were diminished by pharmacologic or genetic inhibition of the epithelial NADPH oxidase dual oxidase 1 (DUOX1). DUOX1 deficiency also attenuated several EGFR-dependent features of HDM-induced allergic airway inflammation, including neutrophilic inflammation, type 2 cytokine production (IL-33, IL-13), mucous metaplasia, subepithelial fibrosis, and central airway resistance. Moreover, targeted inhibition of airway DUOX1 in mice with previously established HDM-induced allergic inflammation, by intratracheal administration of DUOX1-targeted siRNA or pharmacological NADPH oxidase inhibitors, reversed most of these outcomes. Our findings indicate an important function for DUOX1 in allergic inflammation related to persistent EGFR activation and suggest that DUOX1 targeting may represent an attractive strategy in asthma management.
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Affiliation(s)
| | | | | | | | - Jennifer L Ather
- Department of Medicine, Vermont Lung Center, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, Vermont, USA
| | | | - Charles G Irvin
- Department of Medicine, Vermont Lung Center, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Matthew E Poynter
- Department of Medicine, Vermont Lung Center, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Lennart K Lundblad
- Department of Medicine, Vermont Lung Center, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Anne E Dixon
- Department of Medicine, Vermont Lung Center, Robert Larner, M.D. College of Medicine, University of Vermont, Burlington, Vermont, USA
| | - Miklos Geiszt
- Department of Physiology and "Lendület" Peroxidase Enzyme Research Group, Semmelweis University, Budapest, Hungary
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15
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Moronta J, Smaldini PL, Fossati CA, Añon MC, Docena GH. The anti-inflammatory SSEDIKE peptide from Amaranth seeds modulates IgE-mediated food allergy. J Funct Foods 2016. [DOI: 10.1016/j.jff.2016.06.031] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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16
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Matrine suppresses airway inflammation by downregulating SOCS3 expression via inhibition of NF-κB signaling in airway epithelial cells and asthmatic mice. Biochem Biophys Res Commun 2016; 477:83-90. [PMID: 27286706 DOI: 10.1016/j.bbrc.2016.06.024] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Accepted: 06/06/2016] [Indexed: 12/31/2022]
Abstract
UNLABELLED Matrine has been demonstrated to attenuate allergic airway inflammation. Elevated suppressor of cytokine signaling 3 (SOCS3) was correlated with the severity of asthma. The aim of this study was to investigate the effect of matrine on SOCS3 expression in airway inflammation. In this study, we found that matrine significantly inhibited OVA-induced AHR, inflammatory cell infiltration, goblet cell differentiation, and mucous production in a dose-dependent manner in mice. Matrine also abrogated the level of interleukin (IL)-4 and IL-13, but enhanced interferon (IFN)-γ expression, both in BALF and in lung homogenates. Furthermore, matrine impeded TNF-α-induced the expression of IL-6 and adhesion molecules in airway epithelial cells (BEAS-2B and MLE-12). Additionally, we found that matrine inhibited SOCS3 expression, both in asthmatic mice and TNF-α-stimulated epithelial cells via suppression of the NF-κB signaling pathway by using pcDNA3.1-SOCS3 plasmid, SOCS3 siRNA, or nuclear factor kappa-B (NF-κB) inhibitor PDTC. CONCLUSIONS Matrine suppresses airway inflammation by downregulating SOCS3 expression via inhibition of NF-κB signaling in airway epithelial cells and asthmatic mice.
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17
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Tung HY, Landers C, Li E, Porter P, Kheradmand F, Corry DB. Allergen-encoded signals that control allergic responses. Curr Opin Allergy Clin Immunol 2016; 16:51-8. [PMID: 26658015 PMCID: PMC4863991 DOI: 10.1097/aci.0000000000000233] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
PURPOSE OF REVIEW The purpose is to review the important recent advances made in how innate immune cells, microbes, and the environment contribute to the expression of allergic disease, emphasizing the allergen-related signals that drive allergic responses. RECENT FINDINGS The last few years have seen crucial advances in how innate immune cells such as innate lymphoid cells group 2 and airway epithelial cells and related molecular pathways through organismal proteinases and innate immune cytokines, such as thymic stromal lymphopoietin, IL-25, and IL-33 contribute to allergy and asthma. Simultaneously with these advances, important progress has been made in our understanding of how the environment, and especially pathogenic organisms, such as bacteria, viruses, helminths, and especially fungi derived from the natural and built environments, either promote or inhibit allergic inflammation and disease. Of specific interest are how lipopolysaccharide mediates its antiallergic effect through the ubiquitin modifying factor A20 and the antiallergic activity of both helminths and protozoa. SUMMARY Innate immune cells and molecular pathways, often activated by allergen-derived proteinases acting on airway epithelium and macrophages as well as additional unknown factors, are essential to the expression of allergic inflammation and disease. These findings suggest numerous future research opportunities and new opportunities for therapeutic intervention in allergic disease.
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Affiliation(s)
- Hui-Ying Tung
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, Texas, USA
| | - Cameron Landers
- Translational Biology and Molecular Medicine Program, Baylor College of Medicine, Houston, Texas, USA
| | - Evan Li
- Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Paul Porter
- Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Farrah Kheradmand
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, Texas, USA
- Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
- Biology of Inflammation Center, Baylor College of Medicine, Houston, Texas, USA
- Michael E. DeBakey VA Center for Translational Research on Inflammatory Diseases, Houston, Texas, USA
| | - David B. Corry
- Department of Pathology & Immunology, Baylor College of Medicine, Houston, Texas, USA
- Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
- Biology of Inflammation Center, Baylor College of Medicine, Houston, Texas, USA
- Michael E. DeBakey VA Center for Translational Research on Inflammatory Diseases, Houston, Texas, USA
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18
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Ather JL, Poynter ME, Dixon AE. Immunological characteristics and management considerations in obese patients with asthma. Expert Rev Clin Immunol 2015; 11:793-803. [PMID: 25914932 DOI: 10.1586/1744666x.2015.1040394] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Obesity is associated with severe, poorly controlled asthma that does not respond as well to therapy as asthma in leaner asthmatics. Important insights gained from animal models of obesity and asthma suggests that different forms of obesity may lead to different manifestations of airway disease: obesity is associated with both innate increased airway reactivity and altered responses to aeroallergen and pollutant challenges. In humans, at least two broad groups of obese asthmatics have been recognized: one that is likely unique to obesity and another that is likely lean allergic asthma much complicated by obesity. This article will discuss what we have learned about the immunological and pathophysiological basis of asthma in obesity from animal and human studies, and how this might guide therapy.
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Affiliation(s)
- Jennifer L Ather
- Pulmonary and Critical Care Medicine, University of Vermont College of Medicine, Given D208, 89 Beaumont Avenue, Burlington, VT 05405, USA
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