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Lee HS, Park HW. Role of diesel exhaust particle-induced cellular senescence in the development of asthma in young and old mice. Allergol Int 2024; 73:453-463. [PMID: 38350817 DOI: 10.1016/j.alit.2024.01.010] [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: 09/06/2023] [Revised: 01/03/2024] [Accepted: 01/10/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND Although it has been reported that cellular senescence is important in the pathogenesis of asthma, the differential effects of diesel exhaust particle (DEP)-induced cellular senescence on the development of asthma according to age have not been thoroughly studied. METHODS We first confirmed that DEP induced cellular senescence in mouse lungs, and then that DEP-induced cellular senescence followed by intranasal instillation of a low-dose house dust mite (HDM) allergen resulted in murine asthma. Second, we examined age-dependent differential effects using 6-week-old (young) and 18-month-old mice (old), and tested whether the mammalian target of the rapamycin (mTOR) pathway plays an important role in this process. Finally, we performed in vitro experiments using human bronchial epithelial cells (HBEC) originating from young and elderly adults to identify the underlying mechanisms. RESULTS DEP induced cellular senescence in the airway epithelial cells of young and old mice characterized by increased senescence-associated beta-galactosidase, S100A8/9, and high mobility group box 1 (HMGB1) expressions. DEP-induced cellular senescence with subsequent exposure to a low-dose HDM allergen resulted in asthma in young and old mice. Rapamycin (mTOR pathway inhibitor) administration before DEP instillation significantly attenuated these asthmatic features. In addition, after treatment with a low-dose HDM allergen, S100A9 and HMGB1 over-expressed HBEC originating from young and elderly adults greatly activated co-cultured monocyte-derived dendritic cells (DCs). CONCLUSIONS This study showed that DEP-induced senescence made both young and old mice susceptible to allergic sensitization and resultant asthma development by enhancing DC activation. Public health efforts to reduce DEP exposure are warranted.
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Affiliation(s)
- Hyun Seung Lee
- Biomedical Research Institute, Seoul National University Hospital, Seoul, South Korea
| | - Heung-Woo Park
- Department of Internal Medicine, Seoul National University Hospital, Seoul, South Korea; Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea.
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Huang YA, Wang X, Kim JC, Yao X, Sethi A, Strohm A, Doherty TA. PIP-Seq identifies novel heterogeneous lung innate lymphocyte population activation after combustion product exposure. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.24.600420. [PMID: 38979234 PMCID: PMC11230265 DOI: 10.1101/2024.06.24.600420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
Innate lymphoid cells (ILCs) are a heterogeneous population that play diverse roles in airway inflammation after exposure to allergens and infections. However, how ILCs respond after exposure to environmental toxins is not well understood. Here we show a novel method for studying the heterogeneity of rare lung ILC populations by magnetic enrichment for lung ILCs followed by particle-templated instant partition sequencing (PIP-seq). Using this method, we were able to identify novel group 1 and group 2 ILC subsets that exist after exposure to both fungal allergen and burn pit-related constituents (BPC) that include dioxin, aromatic hydrocarbon, and particulate matter. Toxin exposure in combination with fungal allergen induced activation of specific ILC1/NK and ILC2 populations as well as promoted neutrophilic lung inflammation. Oxidative stress pathways and downregulation of specific ribosomal protein genes ( Rpl41 and Rps19 ) implicated in anti-inflammatory responses were present after BPC exposure. Increased IFNγ expression and other pro-neutrophilic mediator transcripts were increased in BPC-stimulated lung innate lymphoid cells. Further, the addition of BPC induced Hspa8 (encodes HSC70) and aryl hydrocarbon transcription factor activity across multiple lung ILC subsets. Overall, using an airway disease model that develops after occupational and environmental exposures, we demonstrate an effective method to better understand heterogenous ILC subset activation.
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Zhao H, Zhan C, Li B, Fang Z, Zhong M, He Y, Chen F, Chen Z, Zhang G, Zhong N, Lai K, Chen R. Non-allergic eosinophilic inflammation and airway hyperresponsiveness induced by diesel engine exhaust through activating ILCs. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 278:116403. [PMID: 38710145 DOI: 10.1016/j.ecoenv.2024.116403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 04/10/2024] [Accepted: 04/24/2024] [Indexed: 05/08/2024]
Abstract
RATIONALE Diesel engine exhaust (DEE) is associated with the development and exacerbation of asthma. Studies have shown that DEE can aggravate allergen-induced eosinophilic inflammation in lung. However, it remains not clear that whether DEE alone could initiate non-allergic eosinophilic inflammation and airway hyperresponsiveness (AHR) through innate lymphoid cells (ILCs) pathway. OBJECTIVE This study aims to investigate the airway inflammation and hyperresponsiveness and its relationship with ILC after DEE exposure. METHOD Non-sensitized BALB/c mice were exposed in the chamber of diesel exhaust or filtered air for 2, 4, and 6 weeks (4 h/day, 6 days/week). Anti-CD4 mAb or anti-Thy1.2 mAb was administered by intraperitoneal injection to inhibit CD4+T or ILCs respectively. AHR、airway inflammation and ILCs were assessed. RESULT DEE exposure induced significantly elevated level of neutrophils, eosinophils, collagen content at 4, 6 weeks. Importantly, the airway AHR was only significant in the 4weeks-DEE exposure group. No difference of the functional proportions of Th2 cells was found between exposure group and control group. The proportions of IL-5+ILC2, IL-17+ILC significantly increased in 2, 4weeks-DEE exposure group. After depletion of CD4+T cells, both the proportion of IL-5+ILC2 and IL-17A ILCs was higher in the 4weeks-DEE exposure group which induced AHR, neutrophilic and eosinophilic inflammation accompanied by the IL-5, IL-17A levels. CONCLUSION Diesel engine exhaust alone can imitate asthmatic characteristics in mice model. Lung-resident ILCs are one of the major effectors cells responsible for a mixed Th2/Th17 response and AHR.
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Affiliation(s)
- Huasi Zhao
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Pulmonary and Critial Care Medicine, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, P.R.China; Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, P.R.China
| | - Chen Zhan
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, P.R.China
| | - Bizhou Li
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, P.R.China; Department of Respiratory Medicine, Guangzhou Panyu Central Hospital, Guangzhou, P.R.China
| | - Zhangfu Fang
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Pulmonary and Critial Care Medicine, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, P.R.China; State Key Laboratory of Respiratory Disease for Allergy at Shenzhen University, Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, P.R.China
| | - Mingyu Zhong
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Pulmonary and Critial Care Medicine, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, P.R.China
| | - Yaowei He
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Pulmonary and Critial Care Medicine, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, P.R.China
| | - Fagui Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Pulmonary and Critial Care Medicine, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, P.R.China
| | - Zhe Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Pulmonary and Critial Care Medicine, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, P.R.China
| | - Guojun Zhang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, P.R.China
| | - Nanshan Zhong
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, P.R.China; Guangzhou National Lab, Guangzhou, P.R.China.
| | - Kefang Lai
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Pulmonary and Critial Care Medicine, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, P.R.China; Guangzhou National Lab, Guangzhou, P.R.China.
| | - Ruchong Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, National Center for Respiratory Medicine, Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, P.R.China; Guangzhou National Lab, Guangzhou, P.R.China.
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Baglivo I, Quaranta VN, Dragonieri S, Colantuono S, Menzella F, Selvaggio D, Carpagnano GE, Caruso C. The New Paradigm: The Role of Proteins and Triggers in the Evolution of Allergic Asthma. Int J Mol Sci 2024; 25:5747. [PMID: 38891935 PMCID: PMC11171572 DOI: 10.3390/ijms25115747] [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: 04/18/2024] [Revised: 05/18/2024] [Accepted: 05/23/2024] [Indexed: 06/21/2024] Open
Abstract
Epithelial barrier damage plays a central role in the development and maintenance of allergic inflammation. Rises in the epithelial barrier permeability of airways alter tissue homeostasis and allow the penetration of allergens and other external agents. Different factors contribute to barrier impairment, such as eosinophilic infiltration and allergen protease action-eosinophilic cationic proteins' effects and allergens' proteolytic activity both contribute significantly to epithelial damage. In the airways, allergen proteases degrade the epithelial junctional proteins, allowing allergen penetration and its uptake by dendritic cells. This increase in allergen-immune system interaction induces the release of alarmins and the activation of type 2 inflammatory pathways, causing or worsening the main symptoms at the skin, bowel, and respiratory levels. We aim to highlight the molecular mechanisms underlying allergenic protease-induced epithelial barrier damage and the role of immune response in allergic asthma onset, maintenance, and progression. Moreover, we will explore potential clinical and radiological biomarkers of airway remodeling in allergic asthma patients.
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Affiliation(s)
- Ilaria Baglivo
- Centro Malattie Apparato Digerente (CEMAD) Digestive Disease Center, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, 00168 Roma, Italy
| | - Vitaliano Nicola Quaranta
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, Section of Respiratory Disease, University “Aldo Moro” of Bari, 70121 Bari, Italy (S.D.)
| | - Silvano Dragonieri
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, Section of Respiratory Disease, University “Aldo Moro” of Bari, 70121 Bari, Italy (S.D.)
| | - Stefania Colantuono
- Unità Operativa Semplice Dipartimentale Day Hospital (UOSD DH) Medicina Interna e Malattie dell’Apparato Digerente, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, 00168 Roma, Italy
| | - Francesco Menzella
- Pulmonology Unit, S. Valentino Hospital-AULSS2 Marca Trevigiana, 31100 Treviso, Italy
| | - David Selvaggio
- UOS di Malattie dell’Apparato Respiratorio Ospedale Cristo Re, 00167 Roma, Italy
| | - Giovanna Elisiana Carpagnano
- Department of Basic Medical Sciences, Neuroscience and Sense Organs, Section of Respiratory Disease, University “Aldo Moro” of Bari, 70121 Bari, Italy (S.D.)
| | - Cristiano Caruso
- Unità Operativa Semplice Dipartimentale Day Hospital (UOSD DH) Medicina Interna e Malattie dell’Apparato Digerente, Fondazione Policlinico Universitario “A. Gemelli” IRCCS, Università Cattolica del Sacro Cuore, 00168 Roma, Italy
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Lin TY, Makrufardi F, Tung NT, Manullang A, Chang PJ, Lo CY, Chiu TH, Tung PH, Lin CH, Lin HC, Wang CH, Lin SM. Different Impacts of Traffic-Related Air Pollution on Early-Onset and Late-Onset Asthma. J Asthma Allergy 2024; 17:195-208. [PMID: 38505396 PMCID: PMC10949997 DOI: 10.2147/jaa.s451725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/28/2024] [Indexed: 03/21/2024] Open
Abstract
Background Early-onset asthma (EOA) and late-onset asthma (LOA) are two distinct phenotypes. Air pollution has been associated with an increase in poorer asthma outcomes. The objective of this study was to examine the effects of traffic-related air pollution (TRAP) on asthma outcomes in EOA and LOA patients. Methods A cross-sectional study was conducted on 675 asthma patients (LOA: 415) recruited from a major medical center in Taiwan. The land-use regression (LUR) model was used to estimate the level of exposure to PM10, PM2.5, NO2, and O3 on an individual level. We investigated the association between TRAP and asthma outcomes in EOA and LOA patients, stratified by allergic sensitization status, using a regression approach. Results An increase in PM10 was associated with younger age of onset, increased asthma duration, and decreased lung function in EOA patients (p<0.05). An increase in PM10 was associated with older age of onset, and decreased asthma duration, eosinophil count, and Asthma Control Test (ACT) score in LOA patients. An increase in PM2.5 was associated with younger age of onset, increased asthma duration, decreased eosinophil count, and lung function in EOA patients (p<0.05). An increase in PM2.5 was associated with decreased lung function and ACT score in LOA patients. An increase in NO2 was associated with increased eosinophil count and decreased lung function in EOA patients (p<0.05). An increase in O3 was associated with decreased lung function in LOA patients (p<0.05). In addition, associations of TRAP with age of onset and eosinophil counts were mainly observed in both EOA and LOA patients with allergic sensitization, and an association with ACT was mainly observed in LOA patients without allergic sensitization. Conclusion The impact of TRAP on age of onset, eosinophil count, and lung function in EOA patients, and ACT in LOA patients, was affected by the status of allergic sensitization.
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Affiliation(s)
- Ting-Yu Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Firdian Makrufardi
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Department of Child Health, Faculty of Medicine, Public Health, and Nursing, Universitas Gadjah Mada – Dr. Sardjito Hospital, Yogyakarta, Indonesia
| | - Nguyen Thanh Tung
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
- Otorhinolaryngology Department, Cho Ray Hospital, Ho Chi Minh City, Vietnam
| | - Amja Manullang
- International Ph.D. Program in Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Po-Jui Chang
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chun-Yu Lo
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Tzu-Hsuan Chiu
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Pi-Hung Tung
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Chiung-Hung Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Horng-Chyuan Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chun-Hua Wang
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Shu-Min Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
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6
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Immormino RM, Smeekens JM, Mathai PI, Clough KM, Nguyen JT, Ghio AJ, Cook DN, Kulis MD, Moran TP. Different airborne particulates trigger distinct immune pathways leading to peanut allergy in a mouse model. Allergy 2024; 79:432-444. [PMID: 37804001 PMCID: PMC11017991 DOI: 10.1111/all.15908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 08/21/2023] [Accepted: 09/13/2023] [Indexed: 10/08/2023]
Abstract
BACKGROUND Environmental exposure to peanut through non-oral routes is a risk factor for peanut allergy. Early-life exposure to air pollutants, including particulate matter (PM), is associated with sensitization to foods through unknown mechanisms. We investigated whether PM promotes sensitization to environmental peanut and the development of peanut allergy in a mouse model. METHODS C57BL/6J mice were co-exposed to peanut and either urban particulate matter (UPM) or diesel exhaust particles (DEP) via the airways and assessed for peanut sensitization and development of anaphylaxis following peanut challenge. Peanut-specific CD4+ T helper (Th) cell responses were characterized by flow cytometry and Th cytokine production. Mice lacking select innate immune signaling genes were used to study mechanisms of PM-induced peanut allergy. RESULTS Airway co-exposure to peanut and either UPM- or DEP-induced systemic sensitization to peanut and anaphylaxis following peanut challenge. Exposure to UPM or DEP triggered activation and migration of lung dendritic cells to draining lymph nodes and induction of peanut-specific CD4+ Th cells. UPM- and DEP-induced distinct Th responses, but both stimulated expansion of T follicular helper (Tfh) cells essential for peanut allergy development. MyD88 signaling was critical for UPM- and DEP-induced peanut allergy, whereas TLR4 signaling was dispensable. DEP-induced peanut allergy and Tfh-cell differentiation depended on IL-1 but not IL-33 signaling, whereas neither cytokine alone was necessary for UPM-mediated sensitization. CONCLUSION Environmental co-exposure to peanut and PM induces peanut-specific Tfh cells and peanut allergy in mice.
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Affiliation(s)
- Robert M. Immormino
- Department of Pediatrics, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
- Center for Environmental Medicine, Asthma, and Lung Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Johanna M. Smeekens
- Department of Pediatrics, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
- UNC Food Allergy Initiative, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Priscilla I. Mathai
- Department of Pediatrics, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
- Center for Environmental Medicine, Asthma, and Lung Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Katelyn M. Clough
- University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | | | - Andrew J. Ghio
- Human Studies Facility, United States Environmental Protection Agency, Chapel Hill, North Carolina, USA
| | - Donald N. Cook
- Division of Intramural Research, Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, NIH, North Carolina, USA
| | - Michael D. Kulis
- Department of Pediatrics, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
- UNC Food Allergy Initiative, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Timothy P. Moran
- Department of Pediatrics, The University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
- Center for Environmental Medicine, Asthma, and Lung Biology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
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Gao Y, Zhou Y, Zhou X, Zheng R. Theoretical and observed mechanisms of diesel exhaust particles in promoting asthma. Chin Med J (Engl) 2023; 136:2374-2376. [PMID: 37442761 PMCID: PMC10538868 DOI: 10.1097/cm9.0000000000002592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Indexed: 07/15/2023] Open
Affiliation(s)
- Yuan Gao
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China
| | - Yan Zhou
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China
| | - Xinjia Zhou
- Department of Otolaryngology Head and Neck Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China
| | - Rui Zheng
- Department of Pulmonary and Critical Care Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, China
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Hasegawa Y, Okamura T, Nakajima H, Kitagawa N, Majima S, Okada H, Senmaru T, Ushigome E, Nakanishi N, Hamaguchi M, Takano H, Fukui M. Metabolic outcomes and changes in innate immunity induced by diesel exhaust particles airway exposure and high-fat high-sucrose diet. Life Sci 2023; 326:121794. [PMID: 37224953 DOI: 10.1016/j.lfs.2023.121794] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 05/16/2023] [Accepted: 05/16/2023] [Indexed: 05/26/2023]
Abstract
AIMS Epidemiological studies have shown that exposure to diesel exhaust particles (DEP) is associated with metabolic diseases. We used mice with nonalcoholic fatty liver disease (NAFLD) caused by a high-fat, high-sucrose diet (HFHSD), which mimics a Western diet, to investigate the mechanism of NAFLD exacerbation via changes in innate immunity in the lungs by airway exposure to DEP. MAIN METHODS Six-week-old C57BL6/J male mice were fed HFHSD, and DEP was administered endotracheally once a week for eight weeks. The histology, gene expression, innate immunity cells in the lung and liver, and the serum inflammatory cytokine levels, were investigated. KEY FINDINGS Under the HFHSD, DEP increased blood glucose levels, serum lipid levels, and NAFLD activity scores, and also the expression of genes associated with inflammation in the lungs and liver. DEP caused an increase in ILC1s, ILC2s, ILC3s, and M1 macrophages in the lungs and a marked increase in ILC1s, ILC3s, M1 macrophages, and natural killer cells in the liver, while ILC2 levels were not changed. Furthermore, DEP caused high levels of inflammatory cytokines in the serum. SIGNIFICANCE Chronic exposure to DEP in HFHSD-fed mice increased inflammatory cells involved in innate immunity in the lungs and raised local inflammatory cytokine levels. This inflammation spread throughout the body, suggesting the association with the progression of NAFLD via increased inflammatory cells involved in innate immunity and inflammatory cytokine levels in the liver. These findings contribute to a better understanding of the role of innate immunity in air pollution-related systemic diseases, especially metabolic diseases.
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Affiliation(s)
- Yuka Hasegawa
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Takuro Okamura
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Hanako Nakajima
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Nobuko Kitagawa
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Saori Majima
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Hiroshi Okada
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Takafumi Senmaru
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Emi Ushigome
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Naoko Nakanishi
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
| | - Masahide Hamaguchi
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan.
| | - Hirohisa Takano
- Graduate School of Global Environmental Studies, Kyoto University, Kyoto, 615-8530, Japan; Institute for International Academic Research, Kyoto University of Advanced Science, Kyoto 615-8577, Japan
| | - Michiaki Fukui
- Department of Endocrinology and Metabolism, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto 602-8566, Japan
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9
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De Volder J, Bontinck A, De Grove K, Dirven I, Haelterman V, Joos G, Brusselle G, Maes T. Trajectory of neutrophilic responses in a mouse model of pollutant-aggravated allergic asthma. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 329:121722. [PMID: 37105460 DOI: 10.1016/j.envpol.2023.121722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 05/06/2023]
Abstract
Experimental studies suggest that neutrophils could contribute to allergic asthma pathogenesis, that is mainly driven by type 2 immunity. Inhalation of diesel exhaust particles (DEP) is implicated in both exacerbation and development of asthma. Since exposure to DEP is associated with a neutrophilic component, we aimed to investigate how exposure to the combination of allergens and DEP modulates neutrophilic responses. Human bronchial epithelial cells (HBEC) were exposed to house dust mite (HDM), DEP or HDM + DEP in vitro to determine the expression of neutrophil-recruiting chemokines. Female (C57BL/6 J) mice were intranasally instilled with saline, DEP, HDM or combined HDM + DEP for 3 weeks (subacute) or 6 weeks (chronic). The neutrophilic responses were determined in lung tissue and bronchoalveolar lavage fluid (BALF). Simultaneous exposure to HDM + DEP resulted in increased CXCL1 and CXCL8 mRNA expression by HBEC in vitro. In mice, subacute exposure to HDM + DEP induced a strong mixed eosinophilic/neutrophilic inflammation in BALF and lung and was associated with higher expression of neutrophil-attracting chemokines and NET formation compared to the sole exposures. After chronic HDM + DEP exposure, a similar neutrophilic response was observed, however the NET formation was less pronounced. Interestingly, the increase of BALF eosinophils was also significantly attenuated after chronic HDM + DEP exposure compared to the subacute exposure. Subacute and chronic HDM + DEP exposure induced goblet cell hyperplasia and airway hyperresponsiveness. Our data suggest a role for neutrophils and NETs in pollutant-aggravated eosinophilic allergic asthma. Moreover, subacute exposure to HDM + DEP induces a mixed eosinophilic/neutrophilic response whereas upon chronic HDM + DEP exposure there is a shift in inflammatory response with a more prominent neutrophilic component.
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Affiliation(s)
- Joyceline De Volder
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium
| | - Annelies Bontinck
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium
| | - Katrien De Grove
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium
| | - Iris Dirven
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium
| | - Valerie Haelterman
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium
| | - Guy Joos
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium
| | - Guy Brusselle
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium
| | - Tania Maes
- Ghent University, Ghent University Hospital, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent, Belgium.
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10
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Parrón-Ballesteros J, Gordo RG, López-Rodríguez JC, Olmo N, Villalba M, Batanero E, Turnay J. Beyond allergic progression: From molecules to microbes as barrier modulators in the gut-lung axis functionality. FRONTIERS IN ALLERGY 2023; 4:1093800. [PMID: 36793545 PMCID: PMC9923236 DOI: 10.3389/falgy.2023.1093800] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Accepted: 01/10/2023] [Indexed: 01/31/2023] Open
Abstract
The "epithelial barrier hypothesis" states that a barrier dysfunction can result in allergy development due to tolerance breakdown. This barrier alteration may come from the direct contact of epithelial and immune cells with the allergens, and indirectly, through deleterious effects caused by environmental changes triggered by industrialization, pollution, and changes in the lifestyle. Apart from their protective role, epithelial cells can respond to external factors secreting IL-25 IL-33, and TSLP, provoking the activation of ILC2 cells and a Th2-biased response. Several environmental agents that influence epithelial barrier function, such as allergenic proteases, food additives or certain xenobiotics are reviewed in this paper. In addition, dietary factors that influence the allergenic response in a positive or negative way will be also described here. Finally, we discuss how the gut microbiota, its composition, and microbe-derived metabolites, such as short-chain fatty acids, alter not only the gut but also the integrity of distant epithelial barriers, focusing this review on the gut-lung axis.
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Affiliation(s)
- Jorge Parrón-Ballesteros
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain
| | - Rubén García Gordo
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain
| | - Juan Carlos López-Rodríguez
- The Peter Gorer Department of Immunobiology, King's College London, London, United Kingdom,The Francis Crick Institute, London, United Kingdom
| | - Nieves Olmo
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain
| | - Mayte Villalba
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain
| | - Eva Batanero
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain
| | - Javier Turnay
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Complutense University of Madrid, Madrid, Spain,Correspondence: Javier Turnay
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11
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Oliveira CR, Carvalho J, Olímpio F, Vieira R, Aimbire F, Polonini H. Transfer factors peptides (Imuno TF ®) modulate the lung inflammation and airway remodeling in allergic asthma. Front Immunol 2023; 13:1030252. [PMID: 36685604 PMCID: PMC9846599 DOI: 10.3389/fimmu.2022.1030252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Accepted: 11/29/2022] [Indexed: 01/06/2023] Open
Abstract
Background Allergic asthma is a chronic lung disease in which the lung inflammation and airway remodeling are orchestrated by both the inflammatory and the immune cells that creates a lung millieu that favors the perpetuation of clinical symptoms. The cell signaling in asthma involves the mast cells activation during initial contact with the allergen and, principally, the participation of eosinophils as well as Th2 cells which determine increased levels of IgE, exaggerated secretion of mucus and collagen, and bronchial hyperreactivity. Moreover, allergic asthma presents lower level of cytokines associated to the both Th1 and Treg cells response, and it implies in deficiency of anti-inflammatory response to counterregulate the exaggerated inflammation against allergen. Therefore, the equilibrium between cytokines as well as transcription factors associated to Th2, Th1, and Treg cells is compromised in allergic asthma. Imuno TF® is a food supplement with ability to interfere in immune system pathways. It has been previously demonstrated that Imuno TF® upregulated Th1 cell response whilst downregulated Th2 cell response in human lymphocytes. Objective For this reason, we hypothesized that the Imuno TF effect could be restore the balance between Th1/Th2 CD4 T cells response in murine allergic asthma. Methods Initially, animals were sensitized with OVA via i.p. and challenged with OVA i.n. on days 14, 15 and 16. Treatment with Imuno TF once a day was performed via orogastric from day 17 to day 20. Mice were euthanized on day 21. Results The Imuno TF reduced eosinophilia, mucus production, and airway remodeling (collagen deposition) in asthma mice. Imuno TF influenced cellular signaling associated to allergic asthma once downregulated STAT6 expression as well as decreased IL-4, IL-5, and IL-13 in lung and serum. In addition, Imuno TF restored T-bet and Foxp3 expression as well as increased IL-12, IFN-ɣ, and IL-10. Conclusion Ultimately, Imuno TF mitigated the allergic asthma due to the restoration of balance between the responses of Th1/Th2 as well as Treg cells, and their respective transcription factors the T-bet/STAT6 and Foxp3.
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Affiliation(s)
- Carlos Rocha Oliveira
- Medical School, Group of Phytocomplexes and Cell Signaling, Anhembi Morumbi University, São José dos Campos, São Paulo, Brazil
- Postgraduate Program in Biomedical Engineering, Anhembi Morumbi University, Sao Jose dos Campos, São Paulo, Brazil
| | - Jessica Carvalho
- Department of Science and Technology, Federal University of Sao Paulo, Sao Jose dos Campos, São Paulo, Brazil
| | - Fabiana Olímpio
- Department of Science and Technology, Federal University of Sao Paulo, Sao Jose dos Campos, São Paulo, Brazil
| | - Rodolfo Vieira
- Post-Graduate Program in Sciences of Human Movement and Rehabilitation, Federal University of Sao Paulo, Sao Jose dos Campos, Brazil
- Post-Graduate Program in Human Movement and Rehabilitation and in Pharmaceutical Sciences, Evangelical University of Goias (Unievangelica), Anapolis, Brazil
| | - Flavio Aimbire
- Department of Science and Technology, Federal University of Sao Paulo, Sao Jose dos Campos, São Paulo, Brazil
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12
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Chudakov DB, Konovalova MV, Kashirina EI, Kotsareva OD, Shevchenko MA, Tsaregorodtseva DS, Fattakhova GV. DEPs Induce Local Ige Class Switching Independent of Their Ability to Stimulate iBALT de Novo Formation. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13063. [PMID: 36293642 PMCID: PMC9603618 DOI: 10.3390/ijerph192013063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/04/2022] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Diesel exhaust particles (DEPs) are leading to a general increase in atopic diseases worldwide. However, it is still unknown whether DEPs induce systemic B-cell IgE class switching in secondary lymphoid organs or locally in the lungs in inducible bronchus-associated lymphoid tissue (iBALT). The aim of this work was to identify the exact site of DEP-mediated B-cell IgE class switching and pro-allergic antibody production. METHODS We immunized BALB/c mice with different OVA doses (0.3 and 30 µg) intranasally in the presence and absence of two types of DEPs, SRM1650B and SRM2786. We used low (30 µg) and high (150 µg) DEP doses. RESULTS Only a high DEP dose induced IgE production, regardless of the particle type. Local IgE class switching was stimulated upon treatment with both types of particles with both low and high OVA doses. Despite the similar ability of the two standard DEPs to stimulate IgE production, their ability to induce iBALT formation and growth was markedly different upon co-administration with low OVA doses. CONCLUSIONS DEP-induced local IgE class switching takes place in preexisting iBALTs independent of de novo iBALT formation, at least in the case of SRM1650B co-administered with low OVA doses.
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Affiliation(s)
- Dmitrii Borisovich Chudakov
- Laboratory of Cell Interactions, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 16/10 Miklukho-Maklaya Str., Moscow 117997, Russia
| | - Mariya Vladimirovna Konovalova
- Laboratory of Cell Interactions, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 16/10 Miklukho-Maklaya Str., Moscow 117997, Russia
| | - Elena Igorevna Kashirina
- Laboratory of Cell Interactions, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 16/10 Miklukho-Maklaya Str., Moscow 117997, Russia
| | - Olga Dmitrievna Kotsareva
- Laboratory of Cell Interactions, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 16/10 Miklukho-Maklaya Str., Moscow 117997, Russia
| | - Marina Alexandrovna Shevchenko
- Laboratory of Cell Interactions, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 16/10 Miklukho-Maklaya Str., Moscow 117997, Russia
| | - Daria Sergeevna Tsaregorodtseva
- Faculty of Medical Biology, Sechenov First Moscow State Medical University, 2 Bolshaya Pirogovskaya Str., Moscow 1194535, Russia
| | - Gulnar Vaisovna Fattakhova
- Laboratory of Cell Interactions, Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, 16/10 Miklukho-Maklaya Str., Moscow 117997, Russia
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13
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Lee HS, Park HW. IL-23 plays a significant role in the augmentation of particulate matter-mediated allergic airway inflammation. J Cell Mol Med 2022; 26:4506-4519. [PMID: 35801505 PMCID: PMC9357615 DOI: 10.1111/jcmm.17475] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 05/04/2022] [Accepted: 06/21/2022] [Indexed: 11/29/2022] Open
Abstract
It has been recently that particulate matter (PM) exposure increases the risk and exacerbation of allergic asthma. However, the underlying mechanisms and factors associated with increased allergic responses remain elusive. We evaluated IL-23 and IL-23R (receptor) expression, as well as changes in the asthmatic phenotype in mice administered PM and a low dose of house dust mite (HDM). Next, changes in the phenotype and immune responses were evaluated after intranasal administration of anti-IL-23 antibody during co-exposure to PM and low-dose HDM. We also performed in vitro experiments to investigate the effect of IL-23. IL-23 expression was significantly increased in Epcam+CD45- and CD11c+ cells, while that of IL-23R was increased in Epcam+CD45- cells only in mice administered PM and low-dose HDM. Administration of anti-IL-23 antibody led to decreased airway hyperresponsiveness, eosinophils, and activation of dendritic cells, reduced populations of Th2 Th17, ILC2, the level of IL-33 and granulocyte-macrophage colony-stimulating factor (GM-CSF). Inhibition of IL-23 in PM and low-dose HDM stimulated airway epithelial cell line resulted in decreased IL-33, GM-CSF and affected ILC2 and the activation of BMDCs. PM augmented the phenotypes and immunologic responses of asthma even at low doses of HDM. Interestingly, IL-23 affected immunological changes in airway epithelial cells.
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Affiliation(s)
- Hyun Seung Lee
- Biomedical Research Institute, Seoul National University Hospital, Seoul, Korea
| | - Heung-Woo Park
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea.,Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Korea
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14
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Tuazon JA, Kilburg-Basnyat B, Oldfield LM, Wiscovitch-Russo R, Dunigan-Russell K, Fedulov AV, Oestreich KJ, Gowdy KM. Emerging Insights into the Impact of Air Pollution on Immune-Mediated Asthma Pathogenesis. Curr Allergy Asthma Rep 2022; 22:77-92. [PMID: 35394608 PMCID: PMC9246904 DOI: 10.1007/s11882-022-01034-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2022] [Indexed: 12/13/2022]
Abstract
PURPOSE OF REVIEW Increases in ambient levels of air pollutants have been linked to lung inflammation and remodeling, processes that lead to the development and exacerbation of allergic asthma. Conventional research has focused on the role of CD4+ T helper 2 (TH2) cells in the pathogenesis of air pollution-induced asthma. However, much work in the past decade has uncovered an array of air pollution-induced non-TH2 immune mechanisms that contribute to allergic airway inflammation and disease. RECENT FINDINGS In this article, we review current research demonstrating the connection between common air pollutants and their downstream effects on non-TH2 immune responses emerging as key players in asthma, including PRRs, ILCs, and non-TH2 T cell subsets. We also discuss the proposed mechanisms by which air pollution increases immune-mediated asthma risk, including pre-existing genetic risk, epigenetic alterations in immune cells, and perturbation of the composition and function of the lung and gut microbiomes. Together, these studies reveal the multifaceted impacts of various air pollutants on innate and adaptive immune functions via genetic, epigenetic, and microbiome-based mechanisms that facilitate the induction and worsening of asthma.
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Affiliation(s)
- J A Tuazon
- Department of Microbial Infection and Immunity, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
- Medical Scientist Training Program, The Ohio State University, Columbus, OH, 43210, USA
| | - B Kilburg-Basnyat
- Department of Pharmacology and Toxicology, East Carolina University, Greenville, NC, 27858, USA
| | - L M Oldfield
- Department of Synthetic Biology and Bioenergy, J. Craig Venter Institute, Rockville, MD, 20850, USA
- Department of Synthetic Genomics, Replay Holdings LLC, San Diego, 92121, USA
| | - R Wiscovitch-Russo
- Department of Synthetic Biology and Bioenergy, J. Craig Venter Institute, Rockville, MD, 20850, USA
| | - K Dunigan-Russell
- Division of Pulmonary, Critical Care, and Sleep Medicine, The Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, 43210, USA
| | - A V Fedulov
- Division of Surgical Research, Department of Surgery, Alpert Medical School, Brown University, Rhode Island Hospital, Providence, RI, 02903, USA
| | - K J Oestreich
- Department of Microbial Infection and Immunity, The Ohio State University Wexner Medical Center, Columbus, OH, 43210, USA
- Pelotonia Institute for Immuno-Oncology, The Ohio State University, The James Comprehensive Cancer Center, Columbus, OH, 43210, USA
| | - K M Gowdy
- Division of Pulmonary, Critical Care, and Sleep Medicine, The Ohio State University Wexner Medical Center, Davis Heart and Lung Research Institute, Columbus, OH, 43210, USA.
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15
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Kim E, Bonnegarde-Bernard A, Opiyo SO, Joldrichsen MR, Attia Z, Ahmer BH, Cormet-Boyaka E, Boyaka PN. Pollutants enhance IgE sensitization in the gut via local alteration of vitamin D-metabolizing enzymes. Mucosal Immunol 2022; 15:143-153. [PMID: 34504311 PMCID: PMC10655957 DOI: 10.1038/s41385-021-00440-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 07/14/2021] [Accepted: 07/31/2021] [Indexed: 02/04/2023]
Abstract
Mechanisms linking ingested pollutants to increased incidence of allergy are poorly understood. We report that mice exposed to low doses of cadmium develop higher IgE responses following oral allergen sensitization and more severe allergic symptoms upon allergen challenge. The environmentally relevant doses of this pollutant also induced oxidative/inflammatory responses in the gut of SPF, but not germ-free mice. Interestingly, the increased IgE responses correlated with stimulation of the vitamin D3-metabolizing enzymes CYP27B1 and CYP24A1 in the gut and increased luminal levels of oxidized vitamin D3 metabolites that are not ligands of the vitamin D receptor. Inhibition of CYP27B1 and CYP24A1 via oral administration of pharmacological inhibitors reduced IgE responses induced in mice orally exposed to cadmium. Our findings identify local alteration of vitamin D signaling as a new mechanism for induction of IgE responses by environmental pollutants. They also identify vitamin D3-metabolizing enzymes as therapeutic targets for the treatment of allergy.
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Affiliation(s)
- Eunsoo Kim
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, USA
| | | | - Stephen O Opiyo
- Molecular, Cellular Imaging Center-Columbus, The Ohio State University, Columbus, OH, USA
| | - Marisa R Joldrichsen
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, USA
| | - Zayed Attia
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, USA
| | - Brian H Ahmer
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA
| | | | - Prosper N Boyaka
- Department of Veterinary Biosciences, The Ohio State University, Columbus, OH, USA.
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH, USA.
- Infection Diseases Institute, The Ohio State University, Columbus, OH, USA.
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16
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Lin TY, Lin HC, Liu YS, Lo YL, Wang CH, Chang PJ, Lo CY, Lin SM. Proximity to Heavy Traffic Roads and Patient Characteristics of Late of Onset Asthma in an Urban Asthma Center. Front Med (Lausanne) 2021; 8:783720. [PMID: 34977086 PMCID: PMC8716741 DOI: 10.3389/fmed.2021.783720] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Accepted: 11/15/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Traffic-related pollution is associated with the onset of asthma and the development of different phenotypes of asthma. Few studies have investigated the association between traffic proximity and late-onset of asthma (LOA) and early-onset asthma (EOA). This study was conducted to investigate the associations of LOA phenotypes with a function of the distance between residence and heavy traffic roads (HTRs).Methods: The study group consisted of 280 patients who were (LOA: 78.4%) recruited consecutively from a pay-for-performance asthma program to clarify the patient characteristics and proximity to HTRs within 1,000 m from their residences between EOA and LOA in three urban centers in Taiwan. The subsequent analysis focused on patients with LOA (n = 210) linking phenotypes and distance to HTRs.Results: Subjects with LOA tended to be older than those with EOA and had shorter asthma duration, poorer lung function, lower atopy, and less exposure to fumes or dust at home. Patients with LOA were more likely than those with EOA to live within 900 m of two or more HTRs (14.3 vs. 3.4%, p = 0.02). Among patients with LOA, minimum distance to an HTR was negatively associated with numbers of specific IgE as well as positively associated with the age of onset and body weight significantly. A higher proportion of patients with atopy (26.3 vs. 20.6%, p = 0.001. odds ratio [OR]: 2.82) and anxiety/depression (21.0 vs. 18.1%, p = 0.047. OR: 1.81) and a trend of lower proportion of patients with obese (5.7 vs. 12.4%, p = 0.075) were found to be living within 900 m from HTRs.Conclusions: Late-onset of asthma (LOA) tended to live in areas of higher HTR density compared to EOAs. Among patients with LOA living close to HTRs, the interaction between traffic-related pollution, allergy sensitization, and mood status were the factors associated with asthma onset early. Obesity may be the factor for later onset who live far from HTRs.
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Affiliation(s)
- Ting-Yu Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Horng-Chyuan Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Yun-Sheng Liu
- BalDr Strategic Consulting (Hong Kong) Ltd., Taipei, Taiwan
| | - Yu-Lun Lo
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chun-Hua Wang
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Po-Jui Chang
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Chun-Yu Lo
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Shu-Min Lin
- Department of Thoracic Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan
- College of Medicine, Chang Gung University, Taoyuan, Taiwan
- *Correspondence: Shu-Min Lin
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17
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Do DC, Zhang Y, Tu W, Hu X, Xiao X, Chen J, Hao H, Liu Z, Li J, Huang SK, Wan M, Gao P. Type II alveolar epithelial cell-specific loss of RhoA exacerbates allergic airway inflammation through SLC26A4. JCI Insight 2021; 6:e148147. [PMID: 34101619 PMCID: PMC8410088 DOI: 10.1172/jci.insight.148147] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 06/03/2021] [Indexed: 12/25/2022] Open
Abstract
The small GTPase RhoA and its downstream effectors are critical regulators in the pathophysiological processes of asthma. The underlying mechanism, however, remains undetermined. Here, we generated an asthma mouse model with RhoA–conditional KO mice (Sftpc-cre;RhoAfl/fl) in type II alveolar epithelial cells (AT2) and demonstrated that AT2 cell–specific deletion of RhoA leads to exacerbation of allergen-induced airway hyperresponsiveness and airway inflammation with elevated Th2 cytokines in bronchoalveolar lavage fluid (BALF). Notably, Sftpc-cre;RhoAfl/fl mice showed a significant reduction in Tgf-β1 levels in BALF and lung tissues, and administration of recombinant Tgf-β1 to the mice rescued Tgf-β1 and alleviated the increased allergic airway inflammation observed in Sftpc-cre;RhoAfl/fl mice. Using RNA sequencing technology, we identified Slc26a4 (pendrin), a transmembrane anion exchange, as the most upregulated gene in RhoA-deficient AT2 cells. The upregulation of SLC26A4 was further confirmed in AT2 cells of asthmatic patients and mouse models and in human airway epithelial cells expressing dominant-negative RHOA (RHOA-N19). SLA26A4 was also elevated in serum from asthmatic patients and negatively associated with the percentage of forced expiratory volume in 1 second (FEV1%). Furthermore, SLC26A4 inhibition promoted epithelial TGF-β1 release and attenuated allergic airway inflammation. Our study reveals a RhoA/SLC26A4 axis in AT2 cells that functions as a protective mechanism against allergic airway inflammation.
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Affiliation(s)
- Danh C Do
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Yan Zhang
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Wei Tu
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Respirology & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xinyue Hu
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaojun Xiao
- Institute of Allergy and Immunology, School of Medicine, Shenzhen University, Shenzhen, China
| | - Jingsi Chen
- Children's Hospital, Chongqing Medical University, Chongqing, China
| | - Haiping Hao
- JHMI Deep Sequencing and Microarray Core Facility, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Zhigang Liu
- Department of Respirology & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China.,Institute of Allergy and Immunology, School of Medicine, Shenzhen University, Shenzhen, China
| | - Jing Li
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Shau-Ku Huang
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.,National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Mei Wan
- Department of Orthopaedic Surgery, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Peisong Gao
- Division of Allergy and Clinical Immunology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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18
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Abstract
Since the industrial revolution, air pollution has become a major problem causing several health problems involving the airways as well as the cardiovascular, reproductive, or neurological system. According to the WHO, about 3.6 million deaths every year are related to inhalation of polluted air, specifically due to pulmonary diseases. Polluted air first encounters the airways, which are a major human defense mechanism to reduce the risk of this aggressor. Air pollution consists of a mixture of potentially harmful compounds such as particulate matter, ozone, carbon monoxide, volatile organic compounds, and heavy metals, each having its own effects on the human body. In the last decades, a lot of research investigating the underlying risks and effects of air pollution and/or its specific compounds on the airways, has been performed, involving both in vivo and in vitro experiments. The goal of this review is to give an overview of the recent data on the effects of air pollution on healthy and diseased airways or models of airway disease, such as asthma or chronic obstructive pulmonary disease. Therefore, we focused on studies involving pollution and airway symptoms and/or damage both in mice and humans.
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19
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Harpur CM, Le Page MA, Tate MD. Too young to die? How aging affects cellular innate immune responses to influenza virus and disease severity. Virulence 2021; 12:1629-1646. [PMID: 34152253 PMCID: PMC8218692 DOI: 10.1080/21505594.2021.1939608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Influenza is a respiratory viral infection that causes significant morbidity and mortality worldwide. The innate immune cell response elicited during influenza A virus (IAV) infection forms the critical first line of defense, which typically is impaired as we age. As such, elderly individuals more commonly succumb to influenza-associated complications, which is reflected in most aged animal models of IAV infection. Here, we review the important roles of several major innate immune cell populations in influenza pathogenesis, some of which being deleterious to the host, and the current knowledge of how age-associated numerical, phenotypic and functional cell changes impact disease development. Further investigation into age-related modulation of innate immune cell responses, using appropriate animal models, will help reveal how immunity to IAV may be compromised by aging and inform the development of novel therapies, tailored for use in this vulnerable group.
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Affiliation(s)
- Christopher M Harpur
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, Australia
| | - Mélanie A Le Page
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, Australia
| | - Michelle D Tate
- Centre for Innate Immunity and Infectious Diseases, Hudson Institute of Medical Research, Clayton, Australia.,Department of Molecular and Translational Sciences, Monash University, Clayton, Australia
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20
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Blomme EE, Provoost S, De Smet EG, De Grove KC, Van Eeckhoutte HP, De Volder J, Hansbro PM, Bonato M, Saetta M, Wijnant SR, Verhamme F, Joos GF, Bracke KR, Brusselle GG, Maes T. Quantification and role of innate lymphoid cell subsets in Chronic Obstructive Pulmonary Disease. Clin Transl Immunology 2021; 10:e1287. [PMID: 34136217 PMCID: PMC8178740 DOI: 10.1002/cti2.1287] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 03/30/2021] [Accepted: 04/26/2021] [Indexed: 01/02/2023] Open
Abstract
Objectives Innate lymphoid cells (ILCs) secrete cytokines, such as IFN‐γ, IL‐13 and IL‐17, which are linked to chronic obstructive pulmonary disease (COPD). Here, we investigated the role of pulmonary ILCs in COPD pathogenesis. Methods Lung ILC subsets in COPD and control subjects were quantified using flow cytometry and associated with clinical parameters. Tissue localisation of ILC and T‐cell subsets was determined by immunohistochemistry. Mice were exposed to air or cigarette smoke (CS) for 1, 4 or 24 weeks to investigate whether pulmonary ILC numbers and activation are altered and whether they contribute to CS‐induced innate inflammatory responses. Results Quantification of lung ILC subsets demonstrated that ILC1 frequency in the total ILC population was elevated in COPD and was associated with smoking and severity of respiratory symptoms (COPD Assessment Test [CAT] score). All three ILC subsets localised near lymphoid aggregates in COPD. In the COPD mouse model, CS exposure in C57BL/6J mice increased ILC numbers at all time points, with relative increases in ILC1 in bronchoalveolar lavage (BAL) fluid. Importantly, CS exposure induced increases in neutrophils, monocytes and dendritic cells that remained elevated in Rag2/Il2rg‐deficient mice that lack adaptive immune cells and ILCs. However, CS‐induced CXCL1, IL‐6, TNF‐α and IFN‐γ levels were reduced by ILC deficiency. Conclusion The ILC1 subset is increased in COPD patients and correlates with smoking and severity of respiratory symptoms. ILCs also increase upon CS exposure in C57BL/6J mice. In the absence of adaptive immunity, ILCs contribute to CS‐induced pro‐inflammatory mediator release, but are redundant in CS‐induced innate inflammation.
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Affiliation(s)
- Evy E Blomme
- Department of Respiratory Medicine Laboratory for Translational Research in Obstructive Pulmonary Diseases Ghent University Hospital Ghent Belgium
| | - Sharen Provoost
- Department of Respiratory Medicine Laboratory for Translational Research in Obstructive Pulmonary Diseases Ghent University Hospital Ghent Belgium
| | - Elise G De Smet
- Department of Respiratory Medicine Laboratory for Translational Research in Obstructive Pulmonary Diseases Ghent University Hospital Ghent Belgium
| | - Katrien C De Grove
- Department of Respiratory Medicine Laboratory for Translational Research in Obstructive Pulmonary Diseases Ghent University Hospital Ghent Belgium
| | - Hannelore P Van Eeckhoutte
- Department of Respiratory Medicine Laboratory for Translational Research in Obstructive Pulmonary Diseases Ghent University Hospital Ghent Belgium
| | - Joyceline De Volder
- Department of Respiratory Medicine Laboratory for Translational Research in Obstructive Pulmonary Diseases Ghent University Hospital Ghent Belgium
| | - Philip M Hansbro
- Centre for Inflammation Centenary Institute Sydney NSW Australia.,Faculty of Science University of Technology Sydney Ultimo NSW Australia
| | - Matteo Bonato
- Faculty of Science University of Technology Sydney Ultimo NSW Australia
| | - Marina Saetta
- Department of Cardiac, Thoracic, Vascular Sciences and Public Health University of Padova Padova Italy
| | - Sara Ra Wijnant
- Department of Respiratory Medicine Laboratory for Translational Research in Obstructive Pulmonary Diseases Ghent University Hospital Ghent Belgium.,Department of Epidemiology Erasmus Medical Center Rotterdam The Netherlands.,Department of Bioanalysis Faculty of Pharmaceutical Sciences Ghent University Ghent Belgium
| | - Fien Verhamme
- Department of Respiratory Medicine Laboratory for Translational Research in Obstructive Pulmonary Diseases Ghent University Hospital Ghent Belgium
| | - Guy F Joos
- Department of Respiratory Medicine Laboratory for Translational Research in Obstructive Pulmonary Diseases Ghent University Hospital Ghent Belgium
| | - Ken R Bracke
- Department of Respiratory Medicine Laboratory for Translational Research in Obstructive Pulmonary Diseases Ghent University Hospital Ghent Belgium
| | - Guy G Brusselle
- Department of Respiratory Medicine Laboratory for Translational Research in Obstructive Pulmonary Diseases Ghent University Hospital Ghent Belgium
| | - Tania Maes
- Department of Respiratory Medicine Laboratory for Translational Research in Obstructive Pulmonary Diseases Ghent University Hospital Ghent Belgium
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21
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Weidner J, Bartel S, Kılıç A, Zissler UM, Renz H, Schwarze J, Schmidt‐Weber CB, Maes T, Rebane A, Krauss‐Etschmann S, Rådinger M. Spotlight on microRNAs in allergy and asthma. Allergy 2021; 76:1661-1678. [PMID: 33128813 PMCID: PMC8246745 DOI: 10.1111/all.14646] [Citation(s) in RCA: 96] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 10/16/2020] [Accepted: 10/25/2020] [Indexed: 12/14/2022]
Abstract
In past 10 years, microRNAs (miRNAs) have gained scientific attention due to their importance in the pathophysiology of allergic diseases and their potential as biomarkers in liquid biopsies. They act as master post‐transcriptional regulators that control most cellular processes. As one miRNA can target several mRNAs, often within the same pathway, dysregulated expression of miRNAs may alter particular cellular responses and contribute, or lead, to the development of various diseases. In this review, we give an overview of the current research on miRNAs in allergic diseases, including atopic dermatitis, allergic rhinitis, and asthma. Specifically, we discuss how individual miRNAs function in the regulation of immune responses in epithelial cells and specialized immune cells in response to different environmental factors and respiratory viruses. In addition, we review insights obtained from experiments with murine models of allergic airway and skin inflammation and offer an overview of studies focusing on miRNA discovery using profiling techniques and bioinformatic modeling of the network effect of multiple miRNAs. In conclusion, we highlight the importance of research into miRNA function in allergy and asthma to improve our knowledge of the molecular mechanisms involved in the pathogenesis of this heterogeneous group of diseases.
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Affiliation(s)
- Julie Weidner
- Department of Internal Medicine and Clinical Nutrition Krefting Research Centre Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
| | - Sabine Bartel
- Department of Pathology and Medical Biology GRIAC Research Institute University Medical Center Groningen University of Groningen Groningen The Netherlands
| | - Ayse Kılıç
- Channing Division of Network Medicine Brigham and Women's Hospital Boston MA USA
| | - Ulrich M. Zissler
- Center for Allergy and Environment (ZAUM) Technical University of Munich and Helmholtz Center MunichGerman Research Center for Environmental Health Munich Germany
| | - Harald Renz
- Institut für Laboratoriumsmedizin und Pathobiochemie Philipps University of Marburg Marburg Germany
| | - Jürgen Schwarze
- Centre for Inflammation Research The University of Edinburgh Edinburgh UK
| | - Carsten B. Schmidt‐Weber
- Center for Allergy and Environment (ZAUM) Technical University of Munich and Helmholtz Center MunichGerman Research Center for Environmental Health Munich Germany
| | - Tania Maes
- Department of Respiratory Medicine Ghent University Ghent Belgium
| | - Ana Rebane
- Institute of Biomedicine and Translational Medicine University of Tartu Tartu Estonia
| | - Susanne Krauss‐Etschmann
- Research Center Borstel Borstel Germany
- Institute of Experimental Medicine Christian‐Albrechts University Kiel Kiel Germany
| | - Madeleine Rådinger
- Department of Internal Medicine and Clinical Nutrition Krefting Research Centre Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
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22
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Rodriguez-Rodriguez N, Gogoi M, McKenzie AN. Group 2 Innate Lymphoid Cells: Team Players in Regulating Asthma. Annu Rev Immunol 2021; 39:167-198. [PMID: 33534604 PMCID: PMC7614118 DOI: 10.1146/annurev-immunol-110119-091711] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Type 2 immunity helps protect the host from infection, but it also plays key roles in tissue homeostasis, metabolism, and repair. Unfortunately, inappropriate type 2 immune reactions may lead to allergy and asthma. Group 2 innate lymphoid cells (ILC2s) in the lungs respond rapidly to local environmental cues, such as the release of epithelium-derived type 2 initiator cytokines/alarmins, producing type 2 effector cytokines such as IL-4, IL-5, and IL-13 in response to tissue damage and infection. ILC2s are associated with the severity of allergic asthma, and experimental models of lung inflammation have shown how they act as playmakers, receiving signals variously from stromal and immune cells as well as the nervous system and then distributing cytokine cues to elicit type 2 immune effector functions and potentiate CD4+ T helper cell activation, both of which characterize the pathology of allergic asthma. Recent breakthroughs identifying stromal- and neuronal-derived microenvironmental cues that regulate ILC2s, along with studies recognizing the potential plasticity of ILC2s, have improved our understanding of the immunoregulation of asthma and opened new avenues for drug discovery.
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Affiliation(s)
- Noe Rodriguez-Rodriguez
- Medical Research Council, Laboratory of Molecular Biology, Cambridge, Cambridgeshire, CB2 0QH. UK
| | - Mayuri Gogoi
- Medical Research Council, Laboratory of Molecular Biology, Cambridge, Cambridgeshire, CB2 0QH. UK
| | - Andrew N.J. McKenzie
- Medical Research Council, Laboratory of Molecular Biology, Cambridge, Cambridgeshire, CB2 0QH. UK,Corresponding author:
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23
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Wang E, Tu W, Do DC, Xiao X, Bhatti SB, Yang L, Sun X, Xu D, Yang P, Huang SK, Gao P, Liu Z. Benzo(a)pyrene Enhanced Dermatophagoides Group 1 (Der f 1)-Induced TGFβ1 Signaling Activation Through the Aryl Hydrocarbon Receptor-RhoA Axis in Asthma. Front Immunol 2021; 12:643260. [PMID: 33936062 PMCID: PMC8081905 DOI: 10.3389/fimmu.2021.643260] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 02/24/2021] [Indexed: 12/18/2022] Open
Abstract
We have previously demonstrated that benzo(a)pyrene (BaP) co-exposure with dermatophagoides group 1 allergen (Der f 1) can potentiate Der f 1-induced airway inflammation. The underlying mechanism, however, remains undetermined. Here we investigated the molecular mechanisms underlying the potentiation of BaP exposure on Der f 1-induced airway inflammation in asthma. We found that BaP co-exposure potentiated Der f 1-induced TGFβ1 secretion and signaling activation in human bronchial epithelial cells (HBECs) and the airways of asthma mouse model. Moreover, BaP exposure alone or co-exposure with Der f 1-induced aryl hydrocarbon receptor (AhR) activity was determined by using an AhR-dioxin-responsive element reporter plasmid. The BaP and Der f 1 co-exposure-induced TGFβ1 expression and signaling activation were attenuated by either AhR antagonist CH223191 or AhR knockdown in HBECs. Furthermore, AhR knockdown led to the reduction of BaP and Der f 1 co-exposure-induced active RhoA. Inhibition of RhoA signaling with fasudil, a RhoA/ROCK inhibitor, suppressed BaP and Der f 1 co-exposure-induced TGFβ1 expression and signaling activation. This was further confirmed in HBECs expressing constitutively active RhoA (RhoA-L63) or dominant-negative RhoA (RhoA-N19). Luciferase reporter assays showed prominently increased promoter activities for the AhR binding sites in the promoter region of RhoA. Inhibition of RhoA suppressed BaP and Der f 1 co-exposure-induced airway hyper-responsiveness, Th2-associated airway inflammation, and TGFβ1 signaling activation in asthma. Our studies reveal a previously unidentified functional axis of AhR–RhoA in regulating TGFβ1 expression and signaling activation, representing a potential therapeutic target for allergic asthma.
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Affiliation(s)
- Eryi Wang
- Department of Respiratory and Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China.,The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Wei Tu
- Department of Respiratory and Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China.,The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, China.,Johns Hopkins Asthma and Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Danh C Do
- Johns Hopkins Asthma and Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Xiaojun Xiao
- The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Shehar B Bhatti
- Johns Hopkins Asthma and Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Liteng Yang
- Department of Respiratory and Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Xizhuo Sun
- Department of Respiratory and Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China
| | - Damo Xu
- Department of Respiratory and Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China.,The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Pingchang Yang
- Department of Respiratory and Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China.,The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Shau-Ku Huang
- Department of Respiratory and Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China.,Johns Hopkins Asthma and Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States.,National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Peisong Gao
- Johns Hopkins Asthma and Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Zhigang Liu
- Department of Respiratory and Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China.,The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy and Immunology, Shenzhen University School of Medicine, Shenzhen, China
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24
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Decaesteker T, Vanhoffelen E, Trekels K, Jonckheere AC, Cremer J, Vanstapel A, Dilissen E, Bullens D, Dupont LJ, Vanoirbeek JA. Differential effects of intense exercise and pollution on the airways in a murine model. Part Fibre Toxicol 2021; 18:12. [PMID: 33722268 PMCID: PMC7962283 DOI: 10.1186/s12989-021-00401-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 02/01/2021] [Indexed: 02/07/2023] Open
Abstract
Background Exercise-induced bronchoconstriction (EIB) is a transient airway narrowing, occurring during or shortly after intensive exercise. It is highly prevalent in non-asthmatic outdoor endurance athletes suggesting an important contribution of air pollution in the development of EIB. Therefore, more research is necessary to investigate the combination of exercise and pollutants on the airways. Methods Balbc/ByJ mice were intranasally challenged 5 days a week for 3 weeks with saline or 0.2 mg/ml diesel exhaust particles (DEP), prior to a daily incremental running session or non-exercise session. Once a week, the early ventilatory response was measured and lung function was determined at day 24. Airway inflammation and cytokine levels were evaluated in bronchoalveolar lavage fluid. Furthermore, innate lymphoid cells, dendritic cells and tight junction mRNA expression were determined in lung tissue. Results Submaximal exercise resulted in acute alterations of the breathing pattern and significantly improved FEV0.1 at day 24. DEP exposure induced neutrophilic airway inflammation, accompanied with increased percentages of CD11b+ DC in lung tissue and pro-inflammatory cytokines, such as IL-13, MCP-1, GM-CSF and KC. Occludin and claudin-1(Cldn-1) expression were respectively increased and decreased by DEP exposure. Whereas, exercise increased Cldn-3 and Cldn-18 expression. Combining exercise and DEP exposure resulted in significantly increased SP-D levels in the airways. Conclusion DEP exposure induced typical airway neutrophilia, DC recruitment and pro-inflammatory cytokine production. Whereas, intensive exercise induced changes of the breathing pattern. The combination of both triggers resulted in a dysregulation of tight junction expression, suggesting that intensive exercise in polluted environments can induce important changes in the airway physiology and integrity. Supplementary Information The online version contains supplementary material available at 10.1186/s12989-021-00401-6.
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Affiliation(s)
- Tatjana Decaesteker
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, University of Leuven, Herestraat 49, mailbox 706, 3000, Leuven, Belgium.
| | - Eliane Vanhoffelen
- Centre for Environment and Health, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
| | - Kristel Trekels
- Centre for Environment and Health, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
| | - Anne-Charlotte Jonckheere
- Allergy and Clinical Immunology Research Group, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Jonathan Cremer
- Allergy and Clinical Immunology Research Group, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Arno Vanstapel
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, University of Leuven, Herestraat 49, mailbox 706, 3000, Leuven, Belgium
| | - Ellen Dilissen
- Allergy and Clinical Immunology Research Group, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium
| | - Dominique Bullens
- Allergy and Clinical Immunology Research Group, Department of Microbiology, Immunology and Transplantation, KU Leuven, Leuven, Belgium.,Department of Paediatrics, University Hospitals Leuven, Leuven, Belgium
| | - Lieven J Dupont
- Laboratory of Respiratory Diseases and Thoracic Surgery (BREATHE), Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, University of Leuven, Herestraat 49, mailbox 706, 3000, Leuven, Belgium.,Department of Respiratory Diseases, University Hospitals Leuven, KU Leuven, Leuven, Belgium
| | - Jeroen A Vanoirbeek
- Centre for Environment and Health, Department of Public Health and Primary Care, KU Leuven, Leuven, Belgium
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25
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Scadding GK, Scadding GW. Innate and Adaptive Immunity: ILC2 and Th2 Cells in Upper and Lower Airway Allergic Diseases. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY-IN PRACTICE 2021; 9:1851-1857. [PMID: 33618052 DOI: 10.1016/j.jaip.2021.02.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 12/13/2022]
Abstract
Advances in our understanding of the immune system, with the recent discovery of a parallel set of innate T lymphocytes, the innate lymphocytes (ILCs), have led to a reassessment of the pathogenesis of allergic and eosinophilic airway disorders, including allergic rhinitis (AR), asthma, and chronic rhinosinusitis with nasal polyps. We review current understanding of both elements of type-2 inflammatory responses and their relative influence in these common conditions and consider possible impacts of this on treatment selection.
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26
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El-Naccache DW, Haskó G, Gause WC. Early Events Triggering the Initiation of a Type 2 Immune Response. Trends Immunol 2021; 42:151-164. [PMID: 33386241 PMCID: PMC9813923 DOI: 10.1016/j.it.2020.11.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 11/11/2020] [Accepted: 11/16/2020] [Indexed: 01/11/2023]
Abstract
Type 2 immune responses are typically associated with protection against helminth infections and also with harmful inflammation in response to allergens. Recent advances have revealed that type 2 immunity also contributes to sterile inflammation, cancer, and microbial infections. However, the early events that initiate type 2 immune responses remain poorly defined. New insights reveal major contributions from danger-associated molecular patterns (DAMPs) in the initiation of type 2 immune responses. In this review, we examine the molecules released by the host and pathogens and the role they play in mediating the initiation of mammalian innate type 2 immune responses under a variety of conditions.
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Affiliation(s)
- Darine W El-Naccache
- Center for Immunity and Inflammation, Rutgers - New Jersey Medical School, Newark, NJ, USA; Department of Medicine, Rutgers - New Jersey Medical School, Newark, NJ, USA
| | - György Haskó
- Department of Anesthesiology, Columbia University, New York, NY, 10032, USA
| | - William C Gause
- Center for Immunity and Inflammation, Rutgers - New Jersey Medical School, Newark, NJ, USA; Department of Medicine, Rutgers - New Jersey Medical School, Newark, NJ, USA.
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27
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Asthma and air pollution: recent insights in pathogenesis and clinical implications. Curr Opin Pulm Med 2021; 26:10-19. [PMID: 31724961 DOI: 10.1097/mcp.0000000000000644] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
PURPOSE OF REVIEW Air pollution has adverse effects on the onset and morbidity of respiratory diseases, including asthma. In this review, we discuss recent insights into the effects of air pollution on the incidence and exacerbation of asthma. We focus on epidemiological studies that describe the association between air pollution exposure and development, mortality, persistence and exacerbations of asthma among different age groups. Moreover, we also provide an update on translational studies describing the mechanisms behind this association. RECENT FINDINGS Mechanisms linking air pollutants such as particulate matter, nitrogen dioxide (NO2) and ozone to the development and exacerbation of asthma include the induction of both eosinophilic and neutrophilic inflammation driven by stimulation of airway epithelium and increase of pro-inflammatory cytokine production, oxidative stress and DNA methylation changes. Although exposure during foetal development is often reported as a crucial timeframe, exposure to air pollution is detrimental in people of all ages, thus influencing asthma onset as well as increase in asthma prevalence, mortality, persistence and exacerbation. SUMMARY In conclusion, this review highlights the importance of reducing air pollution levels to avert the progressive increase in asthma incidence and morbidity.
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28
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The Aryl Hydrocarbon Receptor in Asthma: Friend or Foe? Int J Mol Sci 2020; 21:ijms21228797. [PMID: 33233810 PMCID: PMC7699852 DOI: 10.3390/ijms21228797] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 11/18/2020] [Indexed: 12/14/2022] Open
Abstract
The aryl hydrocarbon receptor (AhR) is a ligand-activated transcription factor that has emerged as an important player in asthma control. AhR is responsive to environmental molecules and endogenous or dietary metabolites and regulates innate and adaptive immune responses. Binding of this receptor by different ligands has led to seemingly opposite responses in different asthma models. In this review, we present two sides of the same coin, with the beneficial and deleterious roles of AhR evaluated using known endogenous or exogenous ligands, deficient mice or antagonists. On one hand, AhR has an anti-inflammatory role since its activation in dendritic cells blocks the generation of pro-inflammatory T cells or shifts macrophages toward an anti-inflammatory M2 phenotype. On the other hand, AhR activation by particle-associated polycyclic aromatic hydrocarbons from the environment is pro-inflammatory, inducing mucus hypersecretion, airway remodelling, dysregulation of antigen presenting cells and exacerbates asthma features. Data concerning the role of AhR in cells from asthmatic patients are also reviewed, since AhR could represent a potential target for therapeutic immunomodulation.
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29
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Blomme EE, Provoost S, Bazzan E, Van Eeckhoutte HP, Roffel MP, Pollaris L, Bontinck A, Bonato M, Vandenbroucke L, Verhamme F, Joos GF, Cosio MG, Vanoirbeek JAJ, Brusselle GG, Saetta M, Maes T. Innate lymphoid cells in isocyanate-induced asthma: role of microRNA-155. Eur Respir J 2020; 56:13993003.01289-2019. [PMID: 32499335 DOI: 10.1183/13993003.01289-2019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Accepted: 05/10/2020] [Indexed: 11/05/2022]
Abstract
BACKGROUND Occupational asthma, induced by workplace exposures to low molecular weight agents such as toluene 2,4-diisocyanate (TDI), causes a significant burden to patients and society. Little is known about innate lymphoid cells (ILCs) in TDI-induced asthma. A critical regulator of ILC function is microRNA-155, a microRNA associated with asthma. OBJECTIVE To determine whether TDI exposure modifies the number of ILCs in the lung and whether microRNA-155 contributes to TDI-induced airway inflammation and hyperresponsiveness. METHODS C57BL/6 wild-type and microRNA-155 knockout mice were sensitised and challenged with TDI or vehicle. Intracellular cytokine expression in ILCs and T-cells was evaluated in bronchoalveolar lavage (BAL) fluid using flow cytometry. Peribronchial eosinophilia and goblet cells were evaluated on lung tissue, and airway hyperresponsiveness was measured using the forced oscillation technique. Putative type 2 ILCs (ILC2) were identified in bronchial biopsies of subjects with TDI-induced occupational asthma using immunohistochemistry. Human bronchial epithelial cells were exposed to TDI or vehicle. RESULTS TDI-exposed mice had higher numbers of airway goblet cells, BAL eosinophils, CD4+ T-cells and ILCs, with a predominant type 2 response, and tended to have airway hyperresponsiveness. In TDI-exposed microRNA-155 knockout mice, inflammation and airway hyperresponsiveness were attenuated. TDI exposure induced IL-33 expression in human bronchial epithelial cells and in murine lungs, which was microRNA-155 dependent in mice. GATA3+CD3- cells, presumably ILC2, were present in bronchial biopsies. CONCLUSION TDI exposure is associated with increased numbers of ILCs. The proinflammatory microRNA-155 is crucial in a murine model of TDI asthma, suggesting its involvement in the pathogenesis of occupational asthma due to low molecular weight agents.
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Affiliation(s)
- Evy E Blomme
- Dept of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Sharen Provoost
- Dept of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Erica Bazzan
- Dept of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Hannelore P Van Eeckhoutte
- Dept of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Mirjam P Roffel
- Dept of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium.,University of Groningen, University Medical Center Groningen, GRIAC (Groningen Research Institute for Asthma and COPD), Groningen, The Netherlands
| | - Lore Pollaris
- Centre for Environment and Health, KU Leuven, Leuven, Belgium
| | - Annelies Bontinck
- Dept of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Matteo Bonato
- Dept of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Louise Vandenbroucke
- Dept of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Fien Verhamme
- Dept of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Guy F Joos
- Dept of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Manuel G Cosio
- Dept of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy.,Meakins Christie Laboratories, Respiratory Division, McGill University, Montreal, QC, Canada
| | | | - Guy G Brusselle
- Dept of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Marina Saetta
- Dept of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Tania Maes
- Dept of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
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30
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Brandt EB, Bolcas PE, Ruff BP, Khurana Hershey GK. IL33 contributes to diesel pollution-mediated increase in experimental asthma severity. Allergy 2020; 75:2254-2266. [PMID: 31922608 DOI: 10.1111/all.14181] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 10/25/2019] [Accepted: 11/25/2019] [Indexed: 12/14/2022]
Abstract
BACKGROUND Exposure to traffic pollution, notably diesel exhaust particles (DEP), increases risk for asthma and asthma exacerbations. The contribution of cytokines generated by stressed lung epithelial cells (IL25, IL33, TSLP) to DEP-induced asthma severity remains poorly understood. METHODS BALB/c mice were exposed intratracheally once to DEP or 9 times over 3-weeks to either saline, DEP, and/or house dust mite extract (HDM). Airway hyper-responsiveness (AHR), pulmonary inflammation, and T-cell subsets were assessed 24 hours after the last exposure in mice sufficient and deficient for the IL33 receptor ST2. RESULTS DEP exposure induces oxidative stress, IL6, neutrophils and pulmonary accumulation of IL33, but not IL25 or TSLP or other features of allergic disease. When mice are co-exposed to DEP and low doses of HDM, DEP increases IL33 lung levels and Th2 responses. ST2 deficiency partially protected mice from HDM + DEP induced AHR in association with decreased type 2 inflammation and lung levels of IL5+ IL17A+ co-producing T-cells. Upon in vitro HDM challenge of lung cells from HDM ± DEP exposed ST2-/- mice, secretion of IL5, IL13, IL6 and IL17A was abrogated by a mechanism involving IL33 signaling in both dendritic cells and T-cells. HDM + DEP exposed bone marrow derived dendritic cells and IL33 pulsed BMDC promote a mixed Th2/Th17 response that was dependent on ST2 expression by CD4+ T-cells. CONCLUSION IL33 contributes to DEP mediated increase in allergen-induced Th2 inflammation and AHR in a mouse model of severe steroid resistant asthma, potentially through the accumulation of pathogenic IL5+ IL17A+ CD4+ effector T-cells.
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Affiliation(s)
- Eric B. Brandt
- Division of Asthma Research Cincinnati Children's Hospital Medical Center Cincinnati OH USA
| | - Paige E. Bolcas
- Division of Asthma Research Cincinnati Children's Hospital Medical Center Cincinnati OH USA
| | - Brandy P. Ruff
- Division of Asthma Research Cincinnati Children's Hospital Medical Center Cincinnati OH USA
| | - Gurjit K. Khurana Hershey
- Division of Asthma Research Cincinnati Children's Hospital Medical Center Cincinnati OH USA
- Department of Pediatrics University of Cincinnati College of Medicine Cincinnati OH USA
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Van Den Broucke S, Vanoirbeek J, Alfaro-Moreno E, Hoet P. Contribution of mast cells in irritant-induced airway epithelial barrier impairment in vitro. Toxicol Ind Health 2020; 36:823-834. [PMID: 32840447 DOI: 10.1177/0748233720948771] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The airway epithelium is continuously exposed to environmental irritants, which can cause adverse effects such as irritant-induced asthma (IIA). Mast cells are located near airway epithelia and are able to respond to a variety of stimuli. We aimed to investigate whether mast cells influence the response of the epithelium upon irritant exposure. Two cell lines and three different seeding conditions, that is, bronchial epithelial cells (16HBE) only, 16HBE with mast cells (HMC-1's) basolaterally, and 16HBE with HMC-1's apically, were established. Upon exposure to the environmental irritants, graphene (G), graphene oxide (GO), diesel exhaust particles (DEPs) or hypochlorite (ClO-), transepithelial electrical resistance (TEER) and paracellular flux of fluorescent-labeled dextrans were determined, along with the release of mediators. Identical experiments were conducted with the Ca2+ ionophore ionomycin. Exposure to G and GO induced a significant and permanent decrease of approximately 70% in TEER after 3 h of exposure, whereas DEP and ClO- exposure resulted in a transient decrease of approximately 20% in TEER. This response pattern was similar in all the different seeding conditions. After 24 h of exposure, fluorescein isothiocyanate-dextran transport was 10-fold greater for G and 5-fold greater for GO in each of the tested seeding conditions, while DEP and ClO- induced no change compared to the control. Upon exposure to the irritants, 16HBE did not release thymic stromal lymphopoietin, interleukin 33 (IL-33), or IL-1α, and HMC-1 cells did not release histamine, IL-6, or IL-8. Epithelial barrier integrity upon treatment with ionomycin was not affected by the presence of HMC-1 cells. A limited amount of IL-6 and IL-8 was released by ionomycin-exposed HMC-1 cells. To conclude, we found that the studied environmental irritants do not directly or indirectly activate HMC-1 cells. These mast cells did not influence the epithelial barrier function upon environmental exposure, and thus currently do not provide additional information for the underlying mechanism of IIA.
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Affiliation(s)
- Sofie Van Den Broucke
- Department of Public Health and Primary Care, Centre for Environment and Health, 26657KU Leuven, Leuven, Belgium
| | - Jeroen Vanoirbeek
- Department of Public Health and Primary Care, Centre for Environment and Health, 26657KU Leuven, Leuven, Belgium
| | | | - Peter Hoet
- Department of Public Health and Primary Care, Centre for Environment and Health, 26657KU Leuven, Leuven, Belgium
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Cruz M, Sanchez-Díez S, I O, Romero-Mesones C, J V, Velde G V, X M. The immunomodulatory effects of diesel exhaust particles in asthma. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114600. [PMID: 33618472 DOI: 10.1016/j.envpol.2020.114600] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 03/31/2020] [Accepted: 04/13/2020] [Indexed: 06/12/2023]
Abstract
Ammonium persulfate (AP) causes occupational asthma (OA) and diesel exhaust particles (DEP) exacerbate asthma; however, the role of DEP in asthma due to chemical agents has not been assessed to date. Therefore, the present work aims to study the immunomodulatory effects of DEP in a mouse model of chemical asthma. BALB/c ByJ mice were randomly divided into four experimental groups. On days 1 and 8, mice were dermally sensitized with AP or saline. On days 15, 18 and 21, they received intranasal instillations of AP or saline. Two experimental groups received DEP on every of the three challenges. Airway hyperresponsiveness (AHR), lung mechanics, pulmonary inflammation in bronchoalveolar lavage, leukocyte numbers in total lung tissue, oxidative stress and optical projection tomography (OPT) studies were assessed. The AP-sensitized and challenged group showed asthma-like responses, such as airway hyperresponsiveness, increased levels of eosinophils and NKs and lower numbers of monocytes and CD11b-Ly6C- dendritic cells (DCs). Mice exposed to DEP alone showed increased levels of neutrophils and NKs, reduced numbers of monocytes and alveolar macrophages, and increased levels of CD11b + Ly6C- DCs. The AP sensitized and AP + DEP challenged group also showed asthma-like symptoms such as AHR, as well as increased numbers of eosinophils, neutrophils, CD11b + Ly6C- DCs and decreased levels of total and alveolar macrophages and tolerogenic DCs. Particle deposition was visualised using OPT. In the DEP group the particles were distributed relatively evenly, while in the AP + DEP group they were seen mainly in the large conducting airways. The results show that DEP exposure activates the innate immune response and, together with AP, exacerbates asthma immune hallmarks. This mouse model provides the first evidence of the capacity of DEPs to increase CD11b + Ly6C- (Th2-related) DCs. This study also demonstrates, for the first time, a differential deposition pattern of DEP in lungs depending on asthma status.
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Affiliation(s)
- Mj Cruz
- Pulmonology Service, Hospital Universitari Vall d'Hebron, Barcelona, Spain; CIBER Enfermedades Respiratorias (CibeRes), Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - S Sanchez-Díez
- Pulmonology Service, Hospital Universitari Vall d'Hebron, Barcelona, Spain; CIBER Enfermedades Respiratorias (CibeRes), Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Ojanguren I
- Pulmonology Service, Hospital Universitari Vall d'Hebron, Barcelona, Spain; CIBER Enfermedades Respiratorias (CibeRes), Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - C Romero-Mesones
- Pulmonology Service, Hospital Universitari Vall d'Hebron, Barcelona, Spain; CIBER Enfermedades Respiratorias (CibeRes), Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Vanoirbeek J
- Centre of Environment and Health, KU Leuven, Leuven, Belgium
| | - Vande Velde G
- Department of Imaging and Pathology, Biomedical MRI, KU Leuven. Molecular Small Animal Imaging Center (MoSAIC), KU Leuven, Leuven, Belgium
| | - Muñoz X
- Pulmonology Service, Hospital Universitari Vall d'Hebron, Barcelona, Spain; CIBER Enfermedades Respiratorias (CibeRes), Spain; Medicine Department, Universitat Autònoma de Barcelona, Barcelona, Spain; Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Barcelona, Spain
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Roffel MP, Bracke KR, Heijink IH, Maes T. miR-223: A Key Regulator in the Innate Immune Response in Asthma and COPD. Front Med (Lausanne) 2020; 7:196. [PMID: 32509795 PMCID: PMC7249736 DOI: 10.3389/fmed.2020.00196] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 04/23/2020] [Indexed: 12/13/2022] Open
Abstract
Asthma and Chronic Obstructive Pulmonary Disease (COPD) are chronic obstructive respiratory diseases characterized by airway obstruction, inflammation, and remodeling. Recent findings indicate the importance of microRNAs (miRNAs) in the regulation of pathological processes involved in both diseases. MiRNAs have been implicated in a wide array of biological processes, such as inflammation, cell proliferation, differentiation, and death. MiR-223 is one of the miRNAs that is thought to play a role in obstructive lung disease as altered expression levels have been observed in both asthma and COPD. MiR-223 is a hematopoietic cell–derived miRNA that plays a role in regulation of monocyte-macrophage differentiation, neutrophil recruitment, and pro-inflammatory responses and that can be transferred to non-myeloid cells via extracellular vesicles or lipoproteins. In this translational review, we highlight the role of miR-223 in obstructive respiratory diseases, focusing on expression data in clinical samples of asthma and COPD, in vivo experiments in mouse models and in vitro functional studies. Furthermore, we provide an overview of the mechanisms by which miR-223 regulates gene expression. We specifically focus on immune cell development and activation and involvement in immune responses, which are important in asthma and COPD. Collectively, this review demonstrates the importance of miR-223 in obstructive respiratory diseases and explores its therapeutic potential in the pathogenesis of asthma and COPD.
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Affiliation(s)
- Mirjam P Roffel
- Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent University Hospital, Ghent University, Ghent, Belgium.,Departments of Pathology and Medical Biology and Pulmonology, Groningen Research Institute for Asthma and COPD, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Ken R Bracke
- Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent University Hospital, Ghent University, Ghent, Belgium
| | - Irene H Heijink
- Departments of Pathology and Medical Biology and Pulmonology, Groningen Research Institute for Asthma and COPD, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Tania Maes
- Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent University Hospital, Ghent University, Ghent, Belgium
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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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35
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Crosstalk Among Circadian Rhythm, Obesity and Allergy. Int J Mol Sci 2020; 21:ijms21051884. [PMID: 32164209 PMCID: PMC7084300 DOI: 10.3390/ijms21051884] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/17/2020] [Accepted: 03/05/2020] [Indexed: 12/26/2022] Open
Abstract
The circadian clock system works not only as a cellular time-keeper but also as a coordinator for almost all physiological functions essential to maintaining human health. Therefore, disruptions or malfunctions of this system can cause many diseases and pre-symptomatic conditions. Indeed, previous studies have indicated that disrupted clock gene expression rhythm is closely related to obesity, and that allergic diseases can be regulated by controlling peripheral clocks in organs and tissues. Moreover, recent studies have found that obesity can lead to immune disorders. Accordingly, in this review, we assess the connection between obesity and allergy from the point of view of the circadian clock system anew and summarize the relationships among the circadian clock system, obesity, and allergy.
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Lu X, Tan ZX, Wang B, Li J, Hu B, Gao L, Zhao H, Wang H, Chen YH, Xu DX. Maternal 1-nitropyrene exposure during pregnancy increases susceptibility of allergic asthma in adolescent offspring. CHEMOSPHERE 2020; 243:125356. [PMID: 31743867 DOI: 10.1016/j.chemosphere.2019.125356] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Revised: 11/05/2019] [Accepted: 11/11/2019] [Indexed: 06/10/2023]
Abstract
1-nitropyrene (1-NP) is widespread in the environment, as a typical nitrated polycyclic aromatic hydrocarbon. The purpose of this research was to explore the effects of gestational 1-NP exposure on susceptibility of allergic asthma in offspring. Maternal mice were exposed to 1-NP (100 μg kg-1) by gavage throughout the whole pregnancy. Pups were sensitized by injecting with ovalbumin (OVA) on postnatal day (PND)23, 29, and 36, respectively. At 7 days following the last injection, sensitized mice were exposed to aerosol OVA. As expected, there were quite a few inflammatory cells in the lungs of OVA-sensitized pups, accompanied by bronchial wall thickening and hyperemia. Elevated goblet cells and overproduced mucus were observed in the airways of OVA-sensitized pups. Interestingly, gestational 1-NP exposure aggravated infiltration of inflammatory cells, mainly eosinophils, in OVA-sensitized offspring. Although it had little effect on airway smooth muscle layer thickening and basement membrane fibrosis, gestational 1-NP exposure aggravated goblet cell hyperplasia, Muc5ac mRNA upregulation, and mucus secretion in the airways of OVA-sensitized and challenged offspring. Mechanistically, gestational 1-NP exposure aggravated elevation of pulmonary IL-5 in OVA-sensitized pups. These findings suggest that gestational 1-NP exposure increases susceptibility of allergic asthma in offspring.
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Affiliation(s)
- Xue Lu
- Department of Toxicology & Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China
| | - Zhu-Xia Tan
- Second Affiliated Hospital, Anhui Medical University, Hefei, 230032, China
| | - Bo Wang
- Department of Toxicology & Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China
| | - Jian Li
- Department of Toxicology & Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China
| | - Biao Hu
- Second Affiliated Hospital, Anhui Medical University, Hefei, 230032, China
| | - Lan Gao
- Department of Toxicology & Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China
| | - Hui Zhao
- Second Affiliated Hospital, Anhui Medical University, Hefei, 230032, China
| | - Hua Wang
- Department of Toxicology & Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China
| | - Yuan-Hua Chen
- Department of Histology and Embryology, Anhui Medical University, Hefei, 230032, China.
| | - De-Xiang Xu
- Department of Toxicology & Key Laboratory of Environmental Toxicology of Anhui Higher Education Institutes, Anhui Medical University, Hefei, 230032, China.
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Matsushita K, Tanaka H, Yasuda K, Adachi T, Fukuoka A, Akasaki S, Koida A, Kuroda E, Akira S, Yoshimoto T. Regnase-1 degradation is crucial for IL-33- and IL-25-mediated ILC2 activation. JCI Insight 2020; 5:131480. [PMID: 31990689 DOI: 10.1172/jci.insight.131480] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 01/22/2020] [Indexed: 12/22/2022] Open
Abstract
Group 2 innate lymphoid cells (ILC2s) are a critical innate source of type 2 cytokines in allergic inflammation. Although ILC2s are recognized as a critical cell population in the allergic inflammation, the regulatory mechanism(s) of ILC2s are less well understood. Here, we show that Regnase-1, an immune regulatory RNAse that degrades inflammatory mRNAs, negatively regulates ILC2 function and that IκB kinase (IKK) complex-mediated Regnase-1 degradation is essential for IL-33- and IL-25-induced ILC2 activation. ILC2s from Regnase-1AA/AA mice expressing a Regnase-1 S435A/S439A mutant resistant to IKK complex-mediated degradation accumulated Regnase-1 protein in response to IL-33 and IL-25. IL-33- and IL-25-stimulated Regnase-1AA/AA ILC2s showed reduced cell proliferation and type 2 cytokine (IL-5, IL-9, and IL-13) production and increased cell death. In addition, Il2ra and Il1rl1, but not Il5, Il9, or Il13, mRNAs were destabilized in IL-33-stimulated Regnase-1AA/AA ILC2s. In vivo, Regnase-1AA/AA mice showed attenuated acute type 2 pulmonary inflammation induced by the instillation of IL-33, IL-25, or papain. Furthermore, the expulsion of Nippostrongylus brasiliensis was significantly delayed in Regnase-1AA/AA mice. These results demonstrate that IKK complex-mediated Regnase-1 degradation is essential for ILC2-mediated type 2 responses both in vitro and in vivo. Therefore, controlling Regnase-1 degradation is a potential therapeutic target for ILC2-contributed allergic disorders.
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Affiliation(s)
- Kazufumi Matsushita
- Laboratory of Allergic Diseases, Institute for Advanced Medical Sciences, and.,Department of Immunology, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Hiroki Tanaka
- Laboratory of Host Defense, World Premier International Immunology Frontier Research Center, and.,Department of Host Defense, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Koubun Yasuda
- Department of Immunology, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Takumi Adachi
- Department of Immunology, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Ayumi Fukuoka
- Department of Immunology, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Shoko Akasaki
- Laboratory of Allergic Diseases, Institute for Advanced Medical Sciences, and
| | - Atsuhide Koida
- Department of Immunology, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Etsushi Kuroda
- Department of Immunology, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
| | - Shizuo Akira
- Laboratory of Host Defense, World Premier International Immunology Frontier Research Center, and.,Department of Host Defense, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | - Tomohiro Yoshimoto
- Laboratory of Allergic Diseases, Institute for Advanced Medical Sciences, and.,Department of Immunology, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan
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Maes T. Letter from Belgium. Respirology 2020; 25:559-560. [PMID: 32077224 DOI: 10.1111/resp.13787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 02/10/2020] [Indexed: 11/27/2022]
Affiliation(s)
- Tania Maes
- Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
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Innate lymphoid cells in asthma: pathophysiological insights from murine models to human asthma phenotypes. Curr Opin Allergy Clin Immunol 2019; 19:53-60. [PMID: 30516548 DOI: 10.1097/aci.0000000000000497] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
PURPOSE OF REVIEW The current review describes the role of different types of innate lymphoid cells (ILCs) in the pathogenesis of asthma inflammatory phenotypes by linking findings from murine asthma models with human studies. Novel treatment options are needed for patients with steroid-insensitive asthma. Strategies targeting ILCs, or their upstream or downstream molecules are emerging and discussed in this review. RECENT FINDINGS In eosinophilic asthma, ILCs, and especially type 2 ILCs (ILC2s), are activated by alarmins such as IL-33 upon allergen triggering of the airway epithelium. This initiates IL-5 and IL-13 production by ILC2, resulting in eosinophilic inflammation and airway hyperreactivity. Type 3 ILCs (ILC3s) have been shown to be implicated in obesity-induced asthma, via IL-1β production by macrophages, leading ILC3 and release of IL-17. ILC1s might play a role in severe asthma, but its role is currently less investigated. SUMMARY Several studies have revealed that ILC2s play a role in the induction of eosinophilic inflammation in allergic and nonallergic asthmatic patients mainly via IL-5, IL-13, IL-33 and thymic stromal lymphopoietin. Knowledge on the role of ILC3s and ILC1s in asthmatic patients is lagging behind. Further studies are needed to support the hypothesis that these other types of ILCs contribute to asthma pathogenesis, presumably in nonallergic asthma phenotypes.
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40
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Effects of Air Pollution on Lung Innate Lymphoid Cells: Review of In Vitro and In Vivo Experimental Studies. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16132347. [PMID: 31269777 PMCID: PMC6650824 DOI: 10.3390/ijerph16132347] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 06/28/2019] [Accepted: 06/29/2019] [Indexed: 12/21/2022]
Abstract
Outdoor air pollution is associated with respiratory infections and allergies, yet the role of innate lymphoid cells (ILCs) in pathogen containment and airway hyperresponsiveness relevant to effects of air pollutants on ILCs is poorly understood. We conducted a systematic review to evaluate the available evidence on the effect of outdoor air pollutants on the lung type 1 (ILC1) and type 2 ILCs (ILC2) subsets. We searched five electronic databases (up to Dec 2018) for studies on the effect of carbon monoxide (CO), sulfur dioxide (SO2), nitrogen dioxide (NO2), diesel exhaust particles (DEP), ozone (O3), and particulate matter (PM) on respiratory ILCs. Of 2209 identified citations, 22 full-text papers were assessed for eligibility, and 12 articles describing experimental studies performed in murine strains (9) and on human blood cells (3) were finally selected. Overall, these studies showed that exposure to PM, DEP, and high doses of O3 resulted in a reduction of interferon gamma (IFN-γ) production and cytotoxicity of ILC1. These pollutants and carbon nanotubes stimulate lung ILC2s, produce high levels of interleukin (IL)-5 and IL-13, and induce airway hyperresponsiveness. These findings highlight potential mechanisms by which human ILCs react to air pollution that increase the susceptibility to infections and allergies.
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Muñoz X, Barreiro E, Bustamante V, Lopez-Campos JL, González-Barcala FJ, Cruz MJ. Diesel exhausts particles: Their role in increasing the incidence of asthma. Reviewing the evidence of a causal link. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 652:1129-1138. [PMID: 30586799 DOI: 10.1016/j.scitotenv.2018.10.188] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 10/13/2018] [Accepted: 10/13/2018] [Indexed: 05/12/2023]
Abstract
Exposure to air pollutants has been correlated with an increase in the severity of asthma and in the exacerbation of pre-existing asthma. However, whether or not environmental pollution can cause asthma remains a controversial issue. The present review analyzes the current scientific evidence of the possible causal link between diesel exhaust particles (DEP), the solid fraction of the complex mixture of diesel exhaust, and asthma. The mechanisms that influence the expression and development of asthma are complex. In children prolonged exposure to pollutants such as DEPs may increase asthma prevalence. In adults, this causal relation is less clear, probably because of the heterogeneity of the studies carried out. There is also evidence of physiological mechanisms by which DEPs can cause asthma. The most frequently described interactions between cellular responses and DEP are the induction of pulmonary oxidative stress and inflammation and the activation of receptors of the bronchial epithelium such as toll-like receptors or increases in Th2 and Th17 cytokines, which generally orchestrate the asthmatic response. Others support indirect mechanisms through epigenetic changes, pulmonary microbiome modifications, or the interaction of DEP with environmental antigens to enhance their activity. However, in spite of this evidence, more studies are needed to assess the harmful effects of pollution - not only in the short term in the form of increases in the rate of exacerbations, but in the medium and long term as well, as a possible trigger of the disease.
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Affiliation(s)
- X Muñoz
- Pulmonology Service, Medicine Department, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain; Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), Madrid, Spain; Department of Cell Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Barcelona, Spain.
| | - E Barreiro
- Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), Madrid, Spain; Pulmonology Department-Muscle Research and Respiratory System Unit (URMAR), Institut Hospital del Mar d'Investigacions Mèdiques (IMIM)-Hospital del Mar, Department of Experimental and Health Sciences (CEXS), Universitat Pompeu Fabra, Parc de Recerca Biomèdica de Barcelona (PRBB), Barcelona, Spain
| | - V Bustamante
- Pneumology Department, Hospital Universitario Basurto, Osakidetza/University of the Basque Country, Bilbao, Spain
| | - J L Lopez-Campos
- Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), Madrid, Spain; Unidad Médico-quirúrgica de Enfermedades Respiratorias, Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío, Universidad de Sevilla, Seville, Spain
| | - F J González-Barcala
- Respiratory Department, Clinic University Hospital, Santiago de Compostela, Spain
| | - M J Cruz
- Pulmonology Service, Medicine Department, Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, Barcelona, Spain; Centro de Investigación en Red de Enfermedades Respiratorias (CIBERES), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
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Skevaki C, Renz H. Advances in mechanisms of allergic disease in 2017. J Allergy Clin Immunol 2018; 142:1730-1739. [PMID: 30315828 DOI: 10.1016/j.jaci.2018.09.027] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/14/2018] [Accepted: 09/21/2018] [Indexed: 02/07/2023]
Abstract
This review highlights advances in mechanisms of allergic disease, particularly type 2 innate lymphoid cells, TH2 lymphocytes, B cells, dendritic cells, microbiome and barrier function, eosinophils, and mast cells. During the last year, considerable progress has been made in the further characterization of type 2 inflammation controlled by both adaptive (TH2) and type 2 innate lymphoid effector cells. New pathways of lymphocyte activation, trafficking, and recruitment and effector cell mechanisms have been discovered. The plasticity of lymphocyte effector cell responses is another area in which major progress has been achieved. Accumulating evidence will influence both our understanding of allergic disease and our efforts for allergy prevention and treatment.
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Affiliation(s)
- Chrysanthi Skevaki
- Institute of Laboratory Medicine, Philipps Universität Marburg, Marburg, Germany; Universities of Giessen and Marburg Lung Center (UGMLC), Philipps Universität Marburg, German Center for Lung Research (DZL), Marburg, Germany
| | - Harald Renz
- Institute of Laboratory Medicine, Philipps Universität Marburg, Marburg, Germany; Universities of Giessen and Marburg Lung Center (UGMLC), Philipps Universität Marburg, German Center for Lung Research (DZL), Marburg, Germany.
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43
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De Grove KC, Provoost S, Braun H, Blomme EE, Teufelberger AR, Krysko O, Beyaert R, Brusselle GG, Joos GF, Maes T. IL-33 signalling contributes to pollutant-induced allergic airway inflammation. Clin Exp Allergy 2018; 48:1665-1675. [PMID: 30159930 DOI: 10.1111/cea.13261] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 07/27/2018] [Accepted: 08/20/2018] [Indexed: 12/11/2022]
Abstract
BACKGROUND Clinical and experimental studies have identified a crucial role for IL-33 and its receptor ST2 in allergic asthma. Inhalation of traffic-related pollutants, such as diesel exhaust particles (DEP), facilitates the development of asthma and can cause exacerbations of asthma. However, it is unknown whether IL-33/ST2 signalling contributes to the enhancing effects of air pollutants on allergic airway responses. OBJECTIVE We aim to investigate the functional role of IL-33/ST2 signalling in DEP-enhanced allergic airway responses, using an established murine model. METHODS C57BL/6J mice were exposed to saline, DEP alone, house dust mite (HDM) alone or combined DEP+HDM. To inhibit IL-33 signalling, recombinant soluble ST2 (r-sST2) was given prophylactically (ie, during the whole experimental protocol) or therapeutically (ie, at the end of the experimental protocol). Airway hyperresponsiveness and the airway inflammatory responses were assessed in bronchoalveolar lavage fluid (BALF) and lung. RESULTS Combined exposure to DEP+HDM increased IL-33 and ST2 expression in lung, elevated inflammatory responses and bronchial hyperresponsiveness compared to saline, sole DEP or sole HDM exposure. Prophylactic interference with the IL-33/ST2 signalling pathway impaired the DEP-enhanced allergic airway inflammation in the BALF, whereas effects on lung inflammation and airway hyperresponsiveness were minimal. Treatment with r-sST2 at the end of the experimental protocol did not modulate the DEP-enhanced allergic airway responses. CONCLUSION Our data suggest that the IL-33/ST2 pathway contributes to the onset of DEP-enhanced allergic airway inflammation.
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Affiliation(s)
- Katrien C De Grove
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Sharen Provoost
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Harald Braun
- Center for Inflammation Research, Unit of Molecular Signal Transduction in Inflammation, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Evy E Blomme
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Andrea R Teufelberger
- Upper Airway Research Laboratory, Department of Otorhinolaryngology, Ghent University, Ghent, Belgium
| | - Olga Krysko
- Upper Airway Research Laboratory, Department of Otorhinolaryngology, Ghent University, Ghent, Belgium
| | - Rudi Beyaert
- Center for Inflammation Research, Unit of Molecular Signal Transduction in Inflammation, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Guy G Brusselle
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Guy F Joos
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Tania Maes
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
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44
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Bolcas PE, Brandt EB, Zhang Z, Biagini Myers JM, Ruff BP, Khurana Hershey GK. Vitamin D supplementation attenuates asthma development following traffic-related particulate matter exposure. J Allergy Clin Immunol 2018; 143:386-394.e3. [PMID: 29936100 DOI: 10.1016/j.jaci.2018.04.042] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 02/09/2018] [Accepted: 04/04/2018] [Indexed: 01/22/2023]
Abstract
BACKGROUND Recent literature suggests that children who are vitamin D deficient are uniquely susceptible to the effects of traffic-related air pollution (TRAP) exposure. This is highly significant because large segments of the population reside in zones of high TRAP exposure. OBJECTIVE We sought to determine whether vitamin D supplementation mitigates the effect of TRAP exposure on asthma development, asthma exacerbation, and/or airway inflammation and to determine the timing of vitamin D supplementation that confers maximal health benefit. METHODS Using established mouse models of asthma, we examined the effect of prenatal and postnatal vitamin D supplementation on asthma development, as well as the utility of vitamin D as a treatment for established asthma in the context of diesel exhaust particle (DEP) exposure. RESULTS DEP and allergen coexposure resulted in increased airway hyperresponsiveness (AHR) and accumulation of pathogenic TH2/TH17 cells in the lungs of vitamin D-deficient mice compared with control mice. Prenatal and postnatal vitamin D supplementation significantly attenuated the development of AHR and decreased pulmonary accumulation of TH2/TH17 cells after coexposure to TRAP and allergen but not to allergen alone. Restoration of normal vitamin D status had no effect on AHR once asthma was already established. CONCLUSIONS Our data establish that vitamin D confers protection against asthma development specifically in the context of TRAP exposure. Although vitamin D replacement did not reverse established asthma, restoration of normal vitamin D status in early life significantly attenuated the development of AHR in the setting of DEP-exacerbated allergic asthma and reduced numbers of lung TH2/TH17 cells, which portend the development of severe asthma.
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Affiliation(s)
- Paige E Bolcas
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio; Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, Ohio
| | - Eric B Brandt
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Zhonghua Zhang
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Jocelyn M Biagini Myers
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio; Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Brandy P Ruff
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Gurjit K Khurana Hershey
- Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, Ohio; Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.
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45
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De Grove KC, Provoost S, Brusselle GG, Joos GF, Maes T. Insights in particulate matter-induced allergic airway inflammation: Focus on the epithelium. Clin Exp Allergy 2018; 48:773-786. [PMID: 29772098 DOI: 10.1111/cea.13178] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 05/02/2018] [Accepted: 05/02/2018] [Indexed: 01/01/2023]
Abstract
Outdoor air pollution is a major environmental health problem throughout the world. In particular, exposure to particulate matter (PM) has been associated with the development and exacerbation of several respiratory diseases, including asthma. Although the adverse health effects of PM have been demonstrated for many years, the underlying mechanisms have not been fully identified. In this review, we focus on the role of the lung epithelium and specifically highlight multiple cytokines in PM-induced respiratory responses. We describe the available literature on the topic including in vitro studies, findings in humans (ie observations in human cohorts, human controlled exposure and ex vivo studies) and in vivo animal studies. In brief, it has been shown that exposure to PM modulates the airway epithelium and promotes the production of several cytokines, including IL-1, IL-6, IL-8, IL-25, IL-33, TNF-α, TSLP and GM-CSF. Further, we propose that PM-induced type 2-promoting cytokines are important mediators in the acute and aggravating effects of PM on airway inflammation. Targeting these cytokines could therefore be a new approach in the treatment of asthma.
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Affiliation(s)
- K C De Grove
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - S Provoost
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - G G Brusselle
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - G F Joos
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - T Maes
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
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46
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Kim D, Chen Z, Zhou LF, Huang SX. Air pollutants and early origins of respiratory diseases. Chronic Dis Transl Med 2018; 4:75-94. [PMID: 29988883 PMCID: PMC6033955 DOI: 10.1016/j.cdtm.2018.03.003] [Citation(s) in RCA: 94] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Indexed: 12/13/2022] Open
Abstract
Air pollution is a global health threat and causes millions of human deaths annually. The late onset of respiratory diseases in children and adults due to prenatal or perinatal exposure to air pollutants is emerging as a critical concern in human health. Pregnancy and fetal development stages are highly susceptible to environmental exposure and tend to develop a long-term impact in later life. In this review, we briefly glance at the direct impact of outdoor and indoor air pollutants on lung diseases and pregnancy disorders. We further focus on lung complications in later life with early exposure to air pollutants. Epidemiological evidence is provided to show the association of prenatal or perinatal exposure to air pollutants with various adverse birth outcomes, such as preterm birth, lower birth weight, and lung developmental defects, which further associate with respiratory diseases and reduced lung function in children and adults. Mechanistic evidence is also discussed to support that air pollutants impact various cellular and molecular targets at early life, which link to the pathogenesis and altered immune responses related to abnormal respiratory functions and lung diseases in later life.
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Affiliation(s)
- Dasom Kim
- Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, OH 45249, USA
| | - Zi Chen
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Lin-Fu Zhou
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Shou-Xiong Huang
- Department of Environmental Health, University of Cincinnati College of Medicine, Cincinnati, OH 45249, USA
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47
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Bonniaud P, Fabre A, Frossard N, Guignabert C, Inman M, Kuebler WM, Maes T, Shi W, Stampfli M, Uhlig S, White E, Witzenrath M, Bellaye PS, Crestani B, Eickelberg O, Fehrenbach H, Guenther A, Jenkins G, Joos G, Magnan A, Maitre B, Maus UA, Reinhold P, Vernooy JHJ, Richeldi L, Kolb M. Optimising experimental research in respiratory diseases: an ERS statement. Eur Respir J 2018; 51:13993003.02133-2017. [PMID: 29773606 DOI: 10.1183/13993003.02133-2017] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 04/02/2018] [Indexed: 12/15/2022]
Abstract
Experimental models are critical for the understanding of lung health and disease and are indispensable for drug development. However, the pathogenetic and clinical relevance of the models is often unclear. Further, the use of animals in biomedical research is controversial from an ethical perspective.The objective of this task force was to issue a statement with research recommendations about lung disease models by facilitating in-depth discussions between respiratory scientists, and to provide an overview of the literature on the available models. Focus was put on their specific benefits and limitations. This will result in more efficient use of resources and greater reduction in the numbers of animals employed, thereby enhancing the ethical standards and translational capacity of experimental research.The task force statement addresses general issues of experimental research (ethics, species, sex, age, ex vivo and in vitro models, gene editing). The statement also includes research recommendations on modelling asthma, chronic obstructive pulmonary disease, pulmonary fibrosis, lung infections, acute lung injury and pulmonary hypertension.The task force stressed the importance of using multiple models to strengthen validity of results, the need to increase the availability of human tissues and the importance of standard operating procedures and data quality.
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Affiliation(s)
- Philippe Bonniaud
- Service de Pneumologie et Soins Intensifs Respiratoires, Centre Hospitalo-Universitaire de Bourgogne, Dijon, France.,Faculté de Médecine et Pharmacie, Université de Bourgogne-Franche Comté, Dijon, France.,INSERM U866, Dijon, France
| | - Aurélie Fabre
- Dept of Histopathology, St Vincent's University Hospital, UCD School of Medicine, University College Dublin, Dublin, Ireland
| | - Nelly Frossard
- Laboratoire d'Innovation Thérapeutique, Université de Strasbourg, Strasbourg, France.,CNRS UMR 7200, Faculté de Pharmacie, Illkirch, France.,Labex MEDALIS, Université de Strasbourg, Strasbourg, France
| | - Christophe Guignabert
- INSERM UMR_S 999, Le Plessis-Robinson, France.,Université Paris-Sud and Université Paris-Saclay, Le Kremlin-Bicêtre, France
| | - Mark Inman
- Dept of Medicine, Firestone Institute for Respiratory Health at St Joseph's Health Care MDCL 4011, McMaster University, Hamilton, ON, Canada
| | - Wolfgang M Kuebler
- Institute of Physiology, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Tania Maes
- Dept of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Wei Shi
- Developmental Biology and Regenerative Medicine Program, The Saban Research Institute of Children's Hospital Los Angeles, Los Angeles, CA, USA.,Dept of Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
| | - Martin Stampfli
- Dept of Medicine, Firestone Institute for Respiratory Health at St Joseph's Health Care MDCL 4011, McMaster University, Hamilton, ON, Canada.,Dept of Pathology and Molecular Medicine, McMaster Immunology Research Centre, McMaster University
| | - Stefan Uhlig
- Institute of Pharmacology and Toxicology, RWTH Aachen University, Aachen, Germany
| | - Eric White
- Division of Pulmonary and Critical Care Medicine, Dept of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Martin Witzenrath
- Dept of Infectious Diseases and Respiratory Medicine And Division of Pulmonary Inflammation, Charité - Universitätsmedizin Berlin, Berlin, Germany
| | - Pierre-Simon Bellaye
- Département de Médecine nucléaire, Plateforme d'imagerie préclinique, Centre George-François Leclerc (CGFL), Dijon, France
| | - Bruno Crestani
- Assistance Publique-Hôpitaux de Paris, Hôpital Bichat, DHU FIRE, Service de Pneumologie A, Paris, France.,INSERM UMR 1152, Paris, France.,Université Paris Diderot, Paris, France
| | - Oliver Eickelberg
- Division of Pulmonary Sciences and Critical Care Medicine, Dept of Medicine, University of Colorado, Aurora, CO, USA
| | - Heinz Fehrenbach
- Priority Area Asthma & Allergy, Research Center Borstel, Airway Research Center North (ARCN), German Center for Lung Research (DZL), Borstel, Germany.,Member of the Leibniz Research Alliance Health Technologies
| | - Andreas Guenther
- Justus-Liebig-University Giessen, Universitary Hospital Giessen, Agaplesion Lung Clinic Waldhof-Elgershausen, German Center for Lung Research, Giessen, Germany
| | - Gisli Jenkins
- Nottingham Biomedical Research Centre, Respiratory Research Unit, City Campus, University of Nottingham, Nottingham, UK
| | - Guy Joos
- Dept of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Antoine Magnan
- Institut du thorax, CHU de Nantes, Université de Nantes, Nantes, France
| | - Bernard Maitre
- Hôpital H Mondor, AP-HP, Centre Hospitalier Intercommunal de Créteil, Service de Pneumologie et de Pathologie Professionnelle, DHU A-TVB, Université Paris Est - Créteil, Créteil, France
| | - Ulrich A Maus
- Hannover School of Medicine, Division of Experimental Pneumology, Hannover, Germany
| | - Petra Reinhold
- Institute of Molecular Pathogenesis at the 'Friedrich-Loeffler-Institut' (Federal Research Institute for Animal Health), Jena, Germany
| | - Juanita H J Vernooy
- Dept of Respiratory Medicine, Maastricht University Medical Center+ (MUMC+), AZ Maastricht, The Netherlands
| | - Luca Richeldi
- UOC Pneumologia, Università Cattolica del Sacro Cuore, Fondazione Policlinico Universitario "A. Gemelli", Rome, Italy
| | - Martin Kolb
- Dept of Medicine, Firestone Institute for Respiratory Health at St Joseph's Health Care MDCL 4011, McMaster University, Hamilton, ON, Canada
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48
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Schuijs MJ, Halim TYF. Group 2 innate lymphocytes at the interface between innate and adaptive immunity. Ann N Y Acad Sci 2018; 1417:87-103. [PMID: 29492980 DOI: 10.1111/nyas.13604] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 12/22/2017] [Accepted: 12/31/2017] [Indexed: 12/23/2022]
Abstract
Group 2 innate lymphoid cells (ILC2) are innate immune cells that respond rapidly to their environment through soluble inflammatory mediators and cell-to-cell interactions. As tissue-resident sentinels, ILC2 help orchestrate localized type 2 immune responses. These ILC2-driven type 2 responses are now recognized in diverse immune processes, different anatomical locations, and homeostatic or pathological settings. ILC2-derived cytokines and cell surface signaling molecules function as key regulators of innate and adaptive immunity. Conversely, ILC2 are governed by their environment. As such, ILC2 form an important nexus of the immune system and may present an attractive target for immune modulation in disease.
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49
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Lee YJ, Rabinovitch N. Relationship between traffic-related air pollution particle exposure and asthma exacerbations: Association or causation? Ann Allergy Asthma Immunol 2018; 120:458-460. [PMID: 29481886 DOI: 10.1016/j.anai.2018.02.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2017] [Revised: 02/18/2018] [Accepted: 02/20/2018] [Indexed: 01/22/2023]
Affiliation(s)
- Yoomie J Lee
- Division of Allergy/Immunology, Department of Pediatrics, National Jewish Health, Denver, Colorado
| | - Nathan Rabinovitch
- Division of Allergy/Immunology, Department of Pediatrics, National Jewish Health, Denver, Colorado.
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50
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Teufelberger AR, Nordengrün M, Braun H, Maes T, De Grove K, Holtappels G, O'Brien C, Provoost S, Hammad H, Gonçalves A, Beyaert R, Declercq W, Vandenabeele P, Krysko DV, Bröker BM, Bachert C, Krysko O. The IL-33/ST2 axis is crucial in type 2 airway responses induced by Staphylococcus aureus –derived serine protease–like protein D. J Allergy Clin Immunol 2018; 141:549-559.e7. [DOI: 10.1016/j.jaci.2017.05.004] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Revised: 04/26/2017] [Accepted: 05/08/2017] [Indexed: 01/09/2023]
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