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Vetter C, Schieb J, Vedder N, Lange T, Brunn T, van Geffen C, Gercke P, Kolahian S. The impact of IL-10 and IL-17 on myeloid-derived suppressor cells in vitro and in vivo in a murine model of asthma. Eur J Immunol 2024; 54:e2350785. [PMID: 38654479 DOI: 10.1002/eji.202350785] [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: 09/23/2023] [Revised: 04/03/2024] [Accepted: 04/05/2024] [Indexed: 04/26/2024]
Abstract
Myeloid-derived suppressor cells (MDSCs) hold promise for clinical applications due to their immunosuppressive properties, particularly in the context of inflammation. In the present study, the number and immunosuppressive activity of MDSCs isolated from naïve Il10-/-, Il17-/-, and WT mice as control, as well as from house dust mite extract (HDM)-induced asthmatic Il10-/- and Il17-/- mice, were investigated. IL-10 deficiency increased the number of polymorphonuclear (PMN)-MDSCs in the lung, spleen, and bone marrow, without concurrent impairment of their suppressive activity in vitro. In the asthma model, the IL-17 knockout was concomitant with a lower number and activity of monocytic (M)-MDSCs and an altered inflammatory reaction with impaired lung function. Additionally, we found a higher baseline inflammation of the Il17-/- mice in the lung, manifested in increased airway resistance. We conclude that the impact of IL-10 and IL-17 deficiency on MDSCs differs in the context of inflammation. Accordingly, the in vitro experiments demonstrated an increased number of PMN-MDSCs across tissues in Il10-/- mice, which indicates that IL-10 might serve a pivotal role in preserving immune homeostasis under physiological circumstances. In the context of HDM-induced airway inflammation, IL-17 was found to be an important player in the suppression of pulmonary inflammation and regulation of M-MDSCs.
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Affiliation(s)
- Charlotte Vetter
- Institute of Laboratory Medicine, member of the German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, Marburg, Germany
| | - Jakob Schieb
- Institute of Laboratory Medicine, member of the German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, Marburg, Germany
| | - Nora Vedder
- Institute of Laboratory Medicine, member of the German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, Marburg, Germany
| | - Tim Lange
- Institute of Laboratory Medicine, member of the German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, Marburg, Germany
| | - Tobias Brunn
- Institute of Laboratory Medicine, member of the German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, Marburg, Germany
| | - Chiel van Geffen
- Institute of Laboratory Medicine, member of the German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, Marburg, Germany
| | - Philipp Gercke
- Institute of Laboratory Medicine, member of the German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, Marburg, Germany
| | - Saeed Kolahian
- Institute of Laboratory Medicine, member of the German Center for Lung Research (DZL), Universities of Giessen and Marburg Lung Center (UGMLC), Philipps University Marburg, Marburg, Germany
- Small Animal Imaging Core Facility, Center for Tumor Biology and Immunology (ZTI), Philipps University Marburg, Marburg, Germany
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2
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Deng S, Jiang Y, Luo L, Tang H, Hu X, Wu C, Tang J, Ge H, Gong X, Cai R, Wang G, Li X, Feng J. C5a enhances inflammation and chemotaxis of γδ T cells in malignant pleural effusion. Int Immunopharmacol 2024; 127:111332. [PMID: 38071913 DOI: 10.1016/j.intimp.2023.111332] [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: 10/17/2023] [Revised: 11/22/2023] [Accepted: 11/28/2023] [Indexed: 01/18/2024]
Abstract
BACKGROUND The inhibitory effect of γδT17 cells on the formation of murine malignant pleural effusions (MPE) has been established. However, there is limited understanding regarding the phenotypic characterization of γδ T cells in MPE patients and their recruitment to the pleural cavity. METHODS We quantified γδ T cell prevalence in pleural effusions and corresponding peripheral blood from malignant and benign patients using immunohistochemistry and flow cytometry. The expression of effector memory phenotype, stimulatory/inhibitory/chemokine receptors and cytokines on γδ T cells in MPE was analyzed using multicolor flow cytometry. The infiltration of γδ T cells in MPE was assessed through immunofluorescence, ELISA, flow cytometry and transwell migration assay. RESULTS We observed a significant infiltration of γδ T cells in MPE, surpassing the levels found in blood and benign pleural effusion. γδ T cells in MPE exhibited heightened expression of CD56 and an effector memory phenotype, while displaying lower levels of PD-1. Furthermore, γδ T cells in MPE showed higher levels of cytokines (IFN-γ, IL-17A and IL-22) and chemokine receptors (CCR2, CCR5 and CCR6). CCR2 expression was notably higher in the Vδ2 subtype compared to Vδ1 cells. Moreover, the complement C5a enhanced cytokine release by γδ T cells, upregulated CCR2 expression in Vδ2 subsets, and stimulated the production of chemokines (CCL2, CCL7 and CCL20) in MPE. In vitro utilizing CCR2 neutralising and C5aR antagonist significantly reduced the recruitment of γδ T cells. CONCLUSIONS γδ T cells infiltrate MPE by overexpressing CCR2 and exhibit hightened inflammation, which is further augmented by C5a.
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Affiliation(s)
- Shuanglinzi Deng
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Yuanyuan Jiang
- Department of Clinical Laboratory, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lisha Luo
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Huan Tang
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xinyue Hu
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Chendong Wu
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jiale Tang
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Huan Ge
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaoxiao Gong
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Runjin Cai
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Guo Wang
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaozhao Li
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Juntao Feng
- Department of Respiratory Medicine, National Key Clinical Specialty, Branch of National Clinical Research Center for Respiratory Disease, Xiangya Hospital, Central South University, Changsha, China; National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, China.
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3
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Hsu UH, Chiang BL. γδ T Cells and Allergic Diseases. Clin Rev Allergy Immunol 2023; 65:172-182. [PMID: 37395986 DOI: 10.1007/s12016-023-08966-0] [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] [Accepted: 06/27/2023] [Indexed: 07/04/2023]
Abstract
Gamma-delta (γδ) T cells play an essential role in allergic diseases and have emerged as a potential treatment target in recent decades. To clarify the effects of γδ T cells on atopic illnesses, we reviewed the literature on the physical roles and functions of various subsets of γδ T cells, including type 1 T helper (Th1)-like, type 2 T helper- (Th2)-like, and type 17 T helper (Th17)-like γδ T cells. Mouse Vγ1 T cells increase interleukin (IL)-4 levels and trigger B cell class switching and immunoglobulin E production. Meanwhile, mouse Vγ4 T cells and human CD8lowVδ1 T cells secrete interferon-γ and exert an anti-allergy effect similar to that of Th1 cells. Moreover, mouse Vγ6 T cells produce IL-17A, while Th17-like γδ T cells enhance neutrophil and eosinophil infiltration in the acute phase of inflammation, but exert anti-inflammatory effects in the chronic phase. Human Vγ9δ2 T cells may exhibit Th1- or Th2-like characteristics in response to certain types of stimulation. In addition, the microbiota can modulate epithelial γδ T cell survival through aryl hydrocarbon receptors; these γδ T cells play crucial roles in the repair of epithelial damage, antibacterial protection, antigen tolerance, and effects of dysbiosis on allergic diseases.
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Affiliation(s)
- Uei-Hsiang Hsu
- Department of Pediatrics, National Taiwan University Hospital Hsin-Chu Branch, Hsinchu City, Taiwan
| | - Bor-Luen Chiang
- Department of Pediatrics, National Taiwan University Hospital, Taipei, Taiwan.
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.
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Sun Z, Lin J, Zhang T, Sun X, Wang T, Duan J, Yao K. Combining bioinformatics and machine learning to identify common mechanisms and biomarkers of chronic obstructive pulmonary disease and atrial fibrillation. Front Cardiovasc Med 2023; 10:1121102. [PMID: 37057099 PMCID: PMC10086368 DOI: 10.3389/fcvm.2023.1121102] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 03/14/2023] [Indexed: 03/30/2023] Open
Abstract
BackgroundPatients with chronic obstructive pulmonary disease (COPD) often present with atrial fibrillation (AF), but the common pathophysiological mechanisms between the two are unclear. This study aimed to investigate the common biological mechanisms of COPD and AF and to search for important biomarkers through bioinformatic analysis of public RNA sequencing databases.MethodsFour datasets of COPD and AF were downloaded from the Gene Expression Omnibus (GEO) database. The overlapping genes common to both diseases were screened by WGCNA analysis, followed by protein-protein interaction network construction and functional enrichment analysis to elucidate the common mechanisms of COPD and AF. Machine learning algorithms were also used to identify key biomarkers. Co-expression analysis, “transcription factor (TF)-mRNA-microRNA (miRNA)” regulatory networks and drug prediction were performed for key biomarkers. Finally, immune cell infiltration analysis was performed to evaluate further the immune cell changes in the COPD dataset and the correlation between key biomarkers and immune cells.ResultsA total of 133 overlapping genes for COPD and AF were obtained, and the enrichment was mainly focused on pathways associated with the inflammatory immune response. A key biomarker, cyclin dependent kinase 8 (CDK8), was identified through screening by machine learning algorithms and validated in the validation dataset. Twenty potential drugs capable of targeting CDK8 were obtained. Immune cell infiltration analysis revealed the presence of multiple immune cell dysregulation in COPD. Correlation analysis showed that CDK8 expression was significantly associated with CD8+ T cells, resting dendritic cell, macrophage M2, and monocytes.ConclusionsThis study highlights the role of the inflammatory immune response in COPD combined with AF. The prominent link between CDK8 and the inflammatory immune response and its characteristic of not affecting the basal expression level of nuclear factor kappa B (NF-kB) make it a possible promising therapeutic target for COPD combined with AF.
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Affiliation(s)
- Ziyi Sun
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Jianguo Lin
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, China Academy of Chinese Medical Sciences, Beijing, China
| | - Tianya Zhang
- Graduate School, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Xiaoning Sun
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, China Academy of Chinese Medical Sciences, Beijing, China
| | - Tianlin Wang
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Graduate School, Beijing University of Chinese Medicine, Beijing, China
| | - Jinlong Duan
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Kuiwu Yao
- Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
- Eye Hospital China Academy of Chinese Medical Sciences, China Academy of Chinese Medical Sciences, Beijing, China
- Correspondence: Kuiwu Yao
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5
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Albrecht M, Halle O, Gaedcke S, Pallenberg ST, Camargo Neumann J, Witt M, Roediger J, Schumacher M, Jirmo AC, Warnecke G, Jonigk D, Braubach P, DeLuca D, Hansen G, Dittrich AM. Interleukin-17A and interleukin-22 production by conventional and non-conventional lymphocytes in three different end-stage lung diseases. Clin Transl Immunology 2022; 11:e1398. [PMID: 35757569 PMCID: PMC9202301 DOI: 10.1002/cti2.1398] [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] [Received: 10/22/2021] [Revised: 05/11/2022] [Accepted: 06/01/2022] [Indexed: 11/10/2022] Open
Abstract
Objectives The contribution of adaptive vs. innate lymphocytes to IL-17A and IL-22 secretion at the end stage of chronic lung diseases remains largely unexplored. In order to uncover tissue- and disease-specific secretion patterns, we compared production patterns of IL-17A and IL-22 in three different human end-stage lung disease entities. Methods Production of IL-17A, IL-22 and associated cytokines was assessed in supernatants of re-stimulated lymphocytes by multiplex assays and multicolour flow cytometry of conventional T cells, iNKT cells, γδ T cells and innate lymphoid cells in bronchial lymph node and lung tissue from patients with emphysema (n = 19), idiopathic pulmonary fibrosis (n = 14) and cystic fibrosis (n = 23), as well as lung donors (n = 17). Results We detected secretion of IL-17A and IL-22 by CD4+ T cells, CD8+ T cells, innate lymphoid cells, γδ T cells and iNKT cells in all end-stage lung disease entities. Our analyses revealed disease-specific contributions of individual lymphocyte subpopulations to cytokine secretion patterns. We furthermore found the high levels of microbial detection in CF samples to associate with a more pronounced IL-17A signature upon antigen-specific and unspecific re-stimulation compared to other disease entities and lung donors. Conclusion Our results show that both adaptive and innate lymphocyte populations contribute to IL-17A-dependent pathologies in different end-stage lung disease entities, where they establish an IL-17A-rich microenvironment. Microbial colonisation patterns and cytokine secretion upon microbial re-stimulation suggest that pathogens drive IL-17A secretion patterns in end-stage lung disease.
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Affiliation(s)
- Melanie Albrecht
- Pediatric Pneumology, Allergology and Neonatology Hannover Medical School Hannover Germany.,Molecular Allergology Paul-Ehrlich-Institut, Federal Institute for Vaccines and Biomedicines Langen Germany.,Biomedical Research in Endstage and Obstructive Lung Diseases (BREATH), German Center for Lung Research (DZL) Hannover Germany
| | - Olga Halle
- Pediatric Pneumology, Allergology and Neonatology Hannover Medical School Hannover Germany.,Biomedical Research in Endstage and Obstructive Lung Diseases (BREATH), German Center for Lung Research (DZL) Hannover Germany
| | - Svenja Gaedcke
- Biomedical Research in Endstage and Obstructive Lung Diseases (BREATH), German Center for Lung Research (DZL) Hannover Germany
| | - Sophia T Pallenberg
- Pediatric Pneumology, Allergology and Neonatology Hannover Medical School Hannover Germany
| | - Julia Camargo Neumann
- Pediatric Pneumology, Allergology and Neonatology Hannover Medical School Hannover Germany
| | - Marius Witt
- Pediatric Pneumology, Allergology and Neonatology Hannover Medical School Hannover Germany
| | - Johanna Roediger
- Pediatric Pneumology, Allergology and Neonatology Hannover Medical School Hannover Germany
| | - Marina Schumacher
- Pediatric Pneumology, Allergology and Neonatology Hannover Medical School Hannover Germany
| | - Adan Chari Jirmo
- Pediatric Pneumology, Allergology and Neonatology Hannover Medical School Hannover Germany.,Biomedical Research in Endstage and Obstructive Lung Diseases (BREATH), German Center for Lung Research (DZL) Hannover Germany
| | - Gregor Warnecke
- Biomedical Research in Endstage and Obstructive Lung Diseases (BREATH), German Center for Lung Research (DZL) Hannover Germany.,Department of Cardiac Surgery Heidelberg Medical School Heidelberg Germany
| | - Danny Jonigk
- Biomedical Research in Endstage and Obstructive Lung Diseases (BREATH), German Center for Lung Research (DZL) Hannover Germany.,Institute of Pathology Hannover Medical School Hannover Germany
| | - Peter Braubach
- Biomedical Research in Endstage and Obstructive Lung Diseases (BREATH), German Center for Lung Research (DZL) Hannover Germany.,Institute of Pathology Hannover Medical School Hannover Germany
| | - David DeLuca
- Biomedical Research in Endstage and Obstructive Lung Diseases (BREATH), German Center for Lung Research (DZL) Hannover Germany
| | - Gesine Hansen
- Pediatric Pneumology, Allergology and Neonatology Hannover Medical School Hannover Germany.,Biomedical Research in Endstage and Obstructive Lung Diseases (BREATH), German Center for Lung Research (DZL) Hannover Germany
| | - Anna-Maria Dittrich
- Pediatric Pneumology, Allergology and Neonatology Hannover Medical School Hannover Germany.,Biomedical Research in Endstage and Obstructive Lung Diseases (BREATH), German Center for Lung Research (DZL) Hannover Germany
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Nayak SP, Bagchi B, Roy S. Effects of immunosuppressants on T-cell dynamics: Understanding from a generic coarse-grained immune network model. J Biosci 2022; 47:70. [PMID: 36503907 PMCID: PMC9734612 DOI: 10.1007/s12038-022-00312-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Long-term immunosuppressive therapy is a drug regimen often used to lower aggressive immune responses in various chronic inflammatory diseases. However, such long-term therapy leading to immune suppression may trigger other adverse reactions in the immune system. The rising concern regarding the optimal dose and duration of such treatment has motivated us to understand non-classical immunomodulatory responses induced by various immunosuppressive steroid and secosteroid drugs such as glucocorticoid and vitamin D supplements. The immunomodulatory actions of such immunosuppressants (that govern the adaptive immune response) are often mediated through their characteristic control over CD4+ T-cells involving pro- and antiinflammatory T-cells. Several early studies attempted to decode temporal and dose-dependent behaviors of such pro- and anti-inflammatory T-cells using the chemical dynamics approach. We first summarize these early works. Then, we develop a minimal coarse-grained kinetic network model to capture the commonality in their immunomodulatory functions. This generic model successfully reproduces the characteristic dynamical features, including the clinical latency period in long-term T-cell dynamics. The temporal behavior of T-cells is found to be sensitive to specific rate parameters and doses of immunosuppressants. The steady-state analysis reflects the transition from an early classified weakly regulated (autoimmune-prone) immune state to a strongly regulated state (immunocompromised state), separated by an intervening state of moderate/balanced regulation. An optimal dose and duration are essential in rescuing balanced immune regulation. This review elucidates how developing a simple generic coarse-grained immune network model may provide immense information that helps diagnose inefficacy in adaptive immune function before and after administering immunosuppressants such as glucocorticoid or vitamin D.
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Affiliation(s)
- Sonali Priyadarshini Nayak
- Department of Systems and Computational Biology, School of Life Sciences, University of Hyderabad, Hyderabad, 500046 India
- Max Planck School Matter to Life, University of Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany
| | - Biman Bagchi
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bengaluru, 560012 India
| | - Susmita Roy
- Department of Chemical Sciences, Indian Institute of Science Education and Research, Kolkata, 741246 India
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7
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Tissue-resident immunity in the lung: a first-line defense at the environmental interface. Semin Immunopathol 2022; 44:827-854. [PMID: 36305904 PMCID: PMC9614767 DOI: 10.1007/s00281-022-00964-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 09/08/2022] [Indexed: 12/15/2022]
Abstract
The lung is a vital organ that incessantly faces external environmental challenges. Its homeostasis and unimpeded vital function are ensured by the respiratory epithelium working hand in hand with an intricate fine-tuned tissue-resident immune cell network. Lung tissue-resident immune cells span across the innate and adaptive immunity and protect from infectious agents but can also prove to be pathogenic if dysregulated. Here, we review the innate and adaptive immune cell subtypes comprising lung-resident immunity and discuss their ontogeny and role in distinct respiratory diseases. An improved understanding of the role of lung-resident immunity and how its function is dysregulated under pathological conditions can shed light on the pathogenesis of respiratory diseases.
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Brochetti RA, Klein S, Alonso PT, Schapochnik A, Damazo AS, Hamblin MR, de Souza Setubal Destro MF, Lino-Dos-Santos-Franco A. Beneficial effects of infrared light-emitting diode in corticosteroid-resistant asthma. Lasers Med Sci 2021; 37:1963-1971. [PMID: 34743255 DOI: 10.1007/s10103-021-03457-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 10/26/2021] [Indexed: 10/19/2022]
Abstract
Corticosteroid-resistant asthma (CRA) is a severe form of disease and clinically important, since patients do not respond to mainstay corticosteroid therapies. Thus, new therapies are needed. However, a big limiting factor in the understanding of CRA is the existence of different immunological and inflammatory phenotypes, a fact that makes it difficult to reproduce experimentally. Photobiomodulation (PBM) emerges as an alternative therapy based on earlier studies. This study aims to evaluate the effect of PBM using infrared light-emitting diode (ILED) on the development of corticosteroid-resistant asthma. Therefore, groups of rats were sensitized and challenged with ovalbumin plus Freund's adjuvant for the induction of CRA, and treated or not with ILED directly in the respiratory tract on the skin (wavelength 810 nm; power 100 mW; density energy 5 J/cm; total energy 15 J; time 150 s). Our experimental model was capable to induce neutrophilic asthma. Besides that, the corticosteroid treatment did not reverse the lung cell migration as well as the levels of leukotriene B4, and interleukins 17 and 6. The treatment with ILED reduced the lung cell migration; myeloperoxidase activity; mast cell degranulation; and the levels of leukotriene B4, thromboxane B2, prostaglandin E2, tumoral necrosis factor alpha, and interleukins 17 and 6. Still, ILED increased the level of interleukin 10. In conclusion, we showed promisor effects of ILED when irradiated directly in the respiratory tract as adjuvant treatment of corticosteroid-resistant asthma.
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Affiliation(s)
- Robson Alexandre Brochetti
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, CEP 01504-000, Brazil
| | - Simone Klein
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, CEP 01504-000, Brazil
| | - Paula Tatiane Alonso
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, CEP 01504-000, Brazil
| | - Adriana Schapochnik
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, CEP 01504-000, Brazil
| | - Amílcar Sabino Damazo
- Department of Basic Science in Health, Faculty of Medical Sciences, Federal University of Cuiabá, Cuiabá, Brazil
| | - Michael R Hamblin
- Laser Research Centre, Faculty of Health Science, University of Johannesburg, Doornfontein, 2028, South Africa
| | - Maria Fernanda de Souza Setubal Destro
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, CEP 01504-000, Brazil
| | - Adriana Lino-Dos-Santos-Franco
- Post Graduate Program in Biophotonics Applied to Health Sciences, University Nove de Julho (UNINOVE), Rua Vergueiro, 239/245, São Paulo, SP, CEP 01504-000, Brazil.
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Victor JR, Lezmi G, Leite-de-Moraes M. New Insights into Asthma Inflammation: Focus on iNKT, MAIT, and γδT Cells. Clin Rev Allergy Immunol 2021; 59:371-381. [PMID: 32246390 DOI: 10.1007/s12016-020-08784-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Asthma is a chronic immunological disease affecting all age groups, but often starting in childhood. Although it has long been ascribed to a single pathology, recent studies have highlighted its heterogeneity due to the potential involvement of various pathogenic mechanisms. Here, we present our current understanding of the role of innate-like T (ILT) cells in asthma pathogenesis. These cells constitute a specific family mainly comprising γδT, invariant natural killer (iNKT) and mucosal-associated invariant (MAIT) T cells. They all share the ability to massively secrete a wide range of cytokines in a T-cell receptor (TCR)-dependent or -independent manner. ILT cells are prevalent in mucosal tissues, including airways, where their innate and adaptive immune functions consist primarily in protecting tissue integrity. However, ILT cells may also have detrimental effects leading to asthma symptoms. The immune mechanisms through which this pathogenic effect occurs will be discussed in this overview.
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Affiliation(s)
- Jefferson Russo Victor
- Laboratory of Medical Investigation LIM 56, Division of Clinical Dermatology, Medical School, University of Sao Paulo, Sao Paulo, Brazil
- Division of Environmental Health, FMU, Laureate International Universities, Sao Paulo, Brazil
| | - Guillaume Lezmi
- Laboratory of Immunoregulation and Immunopathology, INEM (Institut Necker-Enfants Malades), CNRS UMR8253, INSERM UMR1151, and Université Paris Descartes, 75015, Paris, France
- AP-HP, Hôpital Necker-Enfants Malades, Service de Pneumologie et d'Allergologie Pédiatriques, Paris, France
| | - Maria Leite-de-Moraes
- Laboratory of Immunoregulation and Immunopathology, INEM (Institut Necker-Enfants Malades), CNRS UMR8253, INSERM UMR1151, and Université Paris Descartes, 75015, Paris, France.
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10
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Nayak SP, Roy S. Immune phase transition under steroid treatment. Phys Rev E 2021; 103:062401. [PMID: 34271610 DOI: 10.1103/physreve.103.062401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 05/11/2021] [Indexed: 11/07/2022]
Abstract
The steroid hormone glucocorticoid (GC) is a well-known immunosuppressant that controls T-cell-mediated adaptive immune response. In this work, we have developed a minimal kinetic network model of T-cell regulation connecting relevant experimental and clinical studies to quantitatively understand the long-term effects of GC on pro-inflammatory T-cell (T_{pro}) and anti-inflammatory T-cell (T_{anti}) dynamics. Due to the antagonistic relation between these two types of T cells, their long-term steady-state population ratio helps us to characterize three classified immune regulations: (i) weak ([T_{pro}]>[T_{anti}]), (ii) strong ([T_{pro}]<[T_{anti}]), and (iii) moderate ([T_{pro}]∼[T_{anti}]), holding the characteristic bistability. In addition to the differences in their long-term steady-state outcome, each immune regulation shows distinct dynamical phases. In the presteady state, a characteristic intermediate stationary phase is observed to develop only in the moderate regulation regime. In the medicinal field, the resting time in this stationary phase is distinguished as a clinical latent period. GC dose-dependent steady-state analysis shows an optimal level of GC to drive a phase transition from the weak or autoimmune prone to the moderate regulation regime. Subsequently, the presteady state clinical latent period tends to diverge near that optimal GC level where [T_{pro}]:[T_{anti}] is highly balanced. The GC-optimized elongated stationary phase explains the rationale behind the requirement of long-term immune diagnostics, especially when long-term GC-based chemotherapeutics and other immunosuppressive drugs are administrated. Moreover, our study reveals GC sensitivity of clinical latent period, which might serve as an early warning signal in diagnosing different immune phases and determining immune phasewise steroid treatment.
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Affiliation(s)
| | - Susmita Roy
- Department of Chemical Sciences, Indian Institute of Science Education and Research Kolkata, Campus Road, Mohanpur, West Bengal 741246, India
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11
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Initiation and Pathogenesis of Severe Asthma with Fungal Sensitization. Cells 2021; 10:cells10040913. [PMID: 33921169 PMCID: PMC8071493 DOI: 10.3390/cells10040913] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2021] [Revised: 04/02/2021] [Accepted: 04/09/2021] [Indexed: 12/26/2022] Open
Abstract
Fungi represent one of the most diverse and abundant eukaryotes on earth, and their ubiquity and small proteolytically active products make them pervasive allergens that affect humans and other mammals. The immunologic parameters surrounding fungal allergies are still not fully elucidated despite their importance given that a large proportion of severe asthmatics are sensitized to fungal allergens. Herein, we explore fungal allergic asthma with emphasis on mouse models that recapitulate the characteristics of human disease, and the main leukocyte players in the pathogenesis of fungal allergies. The endogenous mycobiome may also contribute to fungal asthma, a phenomenon that we discuss only superficially, as much remains to be discovered.
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12
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Qiu W, Kang N, Wu Y, Cai Y, Xiao L, Ge H, Zhu H. Mucosal Associated Invariant T Cells Were Activated and Polarized Toward Th17 in Chronic Obstructive Pulmonary Disease. Front Immunol 2021; 12:640455. [PMID: 33868270 PMCID: PMC8044354 DOI: 10.3389/fimmu.2021.640455] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 03/08/2021] [Indexed: 12/30/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory disease characterized by airway limitation accompanied with infiltration of inflammatory cells. Mucosal associated invariant T (MAIT) cells can recognize bacteria and play an important role in controlling host immune responses by producing cytokines. In this study, we characterized the function and the ability of MAIT cells to secrete cytokines measured by flow cytometry. In COPD patients, MAIT cells have the ability to produce more IL-17 and less IFN-γ compared to healthy individuals. We found that HLA-DR expression levels reflected the degree of inflammation and the proportion of IL-17 was significantly correlated with lung function in peripheral blood. In addition, we found that MAIT cells were highly expressed in the lung, and the increased expression of CXCR2, CXCL1 indicated that MAIT cells had the potential to migrate to inflammatory tissues. This evidence implies that MAIT cells may play a potential role in COPD immunopathology.
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Affiliation(s)
- Wenjia Qiu
- Department of Respiratory Medicine, The Affiliated Huadong Hospital of Fudan University, Shanghai, China
| | - Ning Kang
- Department of Thoracic Surgery, The Affiliated Huadong Hospital of Fudan University, Shanghai, China
| | - Yanxu Wu
- Department of Respiratory Medicine, The Affiliated Huadong Hospital of Fudan University, Shanghai, China
| | - Yongjun Cai
- Department of Pathology, The Affiliated Huadong Hospital of Fudan University, Shanghai, China
| | - Li Xiao
- Department of Pathology, The Affiliated Huadong Hospital of Fudan University, Shanghai, China
| | - Haiyan Ge
- Department of Respiratory Medicine, The Affiliated Huadong Hospital of Fudan University, Shanghai, China
| | - Huili Zhu
- Department of Respiratory Medicine, The Affiliated Huadong Hospital of Fudan University, Shanghai, China
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13
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Zarobkiewicz MK, Wawryk-Gawda E, Kowalska W, Janiszewska M, Bojarska-Junak A. γδ T Lymphocytes in Asthma: a Complicated Picture. Arch Immunol Ther Exp (Warsz) 2021; 69:4. [PMID: 33661375 PMCID: PMC7932949 DOI: 10.1007/s00005-021-00608-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 02/17/2021] [Indexed: 02/08/2023]
Abstract
A minor subset (approximately 5%) of peripheral T cells has their TCR build up from γ and δ chains instead of α and β—those are the γδ T lymphocytes. They can be functionally divided into subsets, e.g., Th1-, Th2-, Th9-, Th17-, Tfh-, and Treg-like γδ T cells. They share some specifics of both innate and adaptive immunity, and are capable of rapid response to a range of stimuli, including some viral and bacterial infections. Atopic diseases, including asthma, are one of major health-related problems of modern western societies. Asthma is one of the most common airway diseases, affecting people of all ages and having potential life-threatening consequences. In this paper, we review the current knowledge about the involvement of γδ T cells in the pathogenesis of asthma and its exacerbations. We summarize both the studies performed on human subjects as well as on the murine model of asthma. γδ T cells seem to be involved in the pathogenesis of asthma, different subsets probably perform opposite functions, e.g., symptom-exacerbating Vγ1 and symptom-suppressing Vγ4 in mice model of asthma.
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Affiliation(s)
- Michał K Zarobkiewicz
- Department of Clinical Immunology, Medical University of Lublin, Chodźki 4a, 20-093, Lublin, Poland.
| | - Ewelina Wawryk-Gawda
- Department of Paediatric Pulmonology and Rheumatology, Medical University of Lublin, Lublin, Poland
| | - Wioleta Kowalska
- Department of Clinical Immunology, Medical University of Lublin, Chodźki 4a, 20-093, Lublin, Poland
| | - Mariola Janiszewska
- Department of Medical Informatics and Statistics With E-Learning Laboratory, Medical University of Lublin, Lublin, Poland
| | - Agnieszka Bojarska-Junak
- Department of Clinical Immunology, Medical University of Lublin, Chodźki 4a, 20-093, Lublin, Poland
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14
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Hinks TSC, Levine SJ, Brusselle GG. Treatment options in type-2 low asthma. Eur Respir J 2021; 57:13993003.00528-2020. [PMID: 32586877 DOI: 10.1183/13993003.00528-2020] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 06/01/2020] [Indexed: 12/17/2022]
Abstract
Monoclonal antibodies targeting IgE or the type-2 cytokines interleukin (IL)-4, IL-5 and IL-13 are proving highly effective in reducing exacerbations and symptoms in people with severe allergic and eosinophilic asthma, respectively. However, these therapies are not appropriate for 30-50% of patients in severe asthma clinics who present with non-allergic, non-eosinophilic, "type-2 low" asthma. These patients constitute an important and common clinical asthma phenotype, driven by distinct, yet poorly understood pathobiological mechanisms. In this review we describe the heterogeneity and clinical characteristics of type-2 low asthma and summarise current knowledge on the underlying pathobiological mechanisms, which includes neutrophilic airway inflammation often associated with smoking, obesity and occupational exposures and may be driven by persistent bacterial infections and by activation of a recently described IL-6 pathway. We review the evidence base underlying existing treatment options for specific treatable traits that can be identified and addressed. We focus particularly on severe asthma as opposed to difficult-to-treat asthma, on emerging data on the identification of airway bacterial infection, on the increasing evidence base for the use of long-term low-dose macrolides, a critical appraisal of bronchial thermoplasty, and evidence for the use of biologics in type-2 low disease. Finally, we review ongoing research into other pathways including tumour necrosis factor, IL-17, resolvins, apolipoproteins, type I interferons, IL-6 and mast cells. We suggest that type-2 low disease frequently presents opportunities for identification and treatment of tractable clinical problems; it is currently a rapidly evolving field with potential for the development of novel targeted therapeutics.
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Affiliation(s)
- Timothy S C Hinks
- Respiratory Medicine Unit and National Institute for Health Research (NIHR) Oxford Biomedical Research Centre (BRC), Nuffield Dept of Medicine, Experimental Medicine, University of Oxford, Oxford, UK
| | - Stewart J Levine
- National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, MD, USA
| | - Guy G Brusselle
- Dept of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium.,Depts of Epidemiology and Respiratory Medicine, Erasmus Medical Center Rotterdam, Rotterdam, The Netherlands
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15
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Faustino LD, Griffith JW, Rahimi RA, Nepal K, Hamilos DL, Cho JL, Medoff BD, Moon JJ, Vignali DAA, Luster AD. Interleukin-33 activates regulatory T cells to suppress innate γδ T cell responses in the lung. Nat Immunol 2020; 21:1371-1383. [PMID: 32989331 PMCID: PMC7578082 DOI: 10.1038/s41590-020-0785-3] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 08/13/2020] [Indexed: 12/20/2022]
Abstract
Foxp3+ regulatory T (Treg) cells expressing the interleukin (IL)-33 receptor ST2 mediate tissue repair in response to IL-33. Whether Treg cells also respond to the alarmin IL-33 to regulate specific aspects of the immune response is not known. Here we describe an unexpected function of ST2+ Treg cells in suppressing the innate immune response in the lung to environmental allergens without altering the adaptive immune response. Following allergen exposure, ST2+ Treg cells were activated by IL-33 to suppress IL-17-producing γδ T cells. ST2 signaling in Treg cells induced Ebi3, a component of the heterodimeric cytokine IL-35 that was required for Treg cell-mediated suppression of γδ T cells. This response resulted in fewer eosinophil-attracting chemokines and reduced eosinophil recruitment into the lung, which was beneficial to the host in reducing allergen-induced inflammation. Thus, we define a fundamental role for ST2+ Treg cells in the lung as a negative regulator of the early innate γδ T cell response to mucosal injury.
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Affiliation(s)
- Lucas D Faustino
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Jason W Griffith
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Rod A Rahimi
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Keshav Nepal
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Daniel L Hamilos
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Josalyn L Cho
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Benjamin D Medoff
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - James J Moon
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Division of Pulmonary and Critical Care Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Dario A A Vignali
- Department of Immunology, University of Pittsburgh School of Medicine and Tumor Microenvironment Center, UPMC Hillman Cancer Center, Pittsburgh, PA, USA
| | - Andrew D Luster
- Center for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
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16
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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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17
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Hynes GM, Hinks TSC. The role of interleukin-17 in asthma: a protective response? ERJ Open Res 2020; 6:00364-2019. [PMID: 32494573 PMCID: PMC7248344 DOI: 10.1183/23120541.00364-2019] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 03/04/2020] [Indexed: 02/06/2023] Open
Abstract
While there now exist effective treatments for type 2 high, eosinophilic asthma, there are no specific therapies for 40–50% of people with asthma with other phenotypes, which result from poorly understood underlying pathological mechanisms. One such pathology is neutrophilic inflammation, which has been associated with interleukin (IL)-17 family cytokines. Human genetic studies identified IL-17 polymorphisms associated with asthma; in murine models of allergic airways disease, IL-17A contributes to airway hyperresponsiveness, and in humans, elevated airway IL-17A levels are repeatedly observed in severe asthma. However, the directionality of this association is unknown, and the assumption that IL-17 cytokines drive disease pathology remains speculative. Here, we explore the evidence underlying the relationship between IL-17 and asthma, we review lessons learned from investigating IL-17 in other inflammatory diseases, and discuss the possibility that IL-17 may even be protective in asthma rather than pathogenic. We also critically examine the newly proposed paradigm of a reciprocal relationship between type 2 and type 17 airways inflammation. In summary, we suggest an association between IL-17 and asthma, but research is needed examining the diverse functions of these cytokines, their longitudinal stability, their response to clinical interventions, and for mechanistic studies determining whether they are protective or pathogenic. IL-17 cytokines have been implicated in neutrophilic asthma by genetic, murine and human data. Here, previous studies are critiqued and the assumption their dominant role is pathogenic rather than protective of airway epithelial barrier integrity is challenged.http://bit.ly/3axB4Zs
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Affiliation(s)
- Gareth M Hynes
- Respiratory Medicine Unit and National Institute for Health Research Oxford Biomedical Research Centre, Nuffield Dept of Medicine, Experimental Medicine, University of Oxford, Oxford, UK
| | - Timothy S C Hinks
- Respiratory Medicine Unit and National Institute for Health Research Oxford Biomedical Research Centre, Nuffield Dept of Medicine, Experimental Medicine, University of Oxford, Oxford, UK
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18
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Cheng M, Chen Y, Huang D, Chen W, Xu W, Chen Y, Shen G, Xu T, Shen G, Tian Z, Hu S. Intrinsically altered lung-resident γδT cells control lung melanoma by producing interleukin-17A in the elderly. Aging Cell 2020; 19:e13099. [PMID: 31903715 PMCID: PMC6996947 DOI: 10.1111/acel.13099] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 11/28/2019] [Accepted: 12/07/2019] [Indexed: 01/12/2023] Open
Abstract
Cancer is an age‐associated disease, potentially related to the altered immune system of elderly individuals. However, cancer has gradually decreased incidence in the eldest globally such as the most common lung cancer, the mechanisms of which remain to be elucidated. In this study, it was found that the number of lung‐resident γδT cells was significantly increased with altered gene expression in aged mice (20–24 months) versus young mice (10–16 weeks). Aged lung Vγ4+ and Vγ6+ γδT cells predominantly produced interleukin‐17A (IL‐17A), resulting in increased levels in the serum and lungs. Moreover, the aged mice exhibited smaller tumors and reduced numbers of tumor foci in the lungs after challenge with intravenous injection of B16/F10 melanoma cells compared with the young mice. Aged lung Vγ4+ and Vγ6+ γδT cells were highly cytotoxic to B16/F10 melanoma cells with higher expression levels of CD103. The markedly longer survival of the challenged aged mice was dependent on γδT17 cells, since neutralization of IL‐17A or depletion of indicated γδT cells significantly shortened the survival time. Consistently, supplementation of IL‐17A significantly enhanced the survival time of young mice with lung melanoma. Furthermore, the anti‐tumor activity of aged lung γδT17 cells was not affected by alterations in the load and composition of commensal microbiota, as demonstrated through co‐housing of the aged and young mice. Intrinsically altered lung γδT17 cells underlying age‐dependent changes control lung melanoma, which will help to better understand the lung cancer progression in the elderly and the potential use of γδT17 cells in anti‐tumor immunotherapy.
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Affiliation(s)
- Min Cheng
- Gerontology Institute of Anhui Province The First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital) Hefei China
- Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy Hefei China
- Cancer Immunotherapy Center The First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital) Hefei China
| | - Yongyan Chen
- Institute of Immunology and The CAS Key Laboratory of Innate Immunity and Chronic Disease School of Life Science and Medical Center University of Science and Technology of China Hefei China
| | - Dake Huang
- Comprehensive Laboratory School of Basic Medical Sciences Anhui Medical University Hefei China
| | - Wen Chen
- Gerontology Institute of Anhui Province The First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital) Hefei China
- Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy Hefei China
- Cancer Immunotherapy Center The First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital) Hefei China
| | - Weiping Xu
- Gerontology Institute of Anhui Province The First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital) Hefei China
- Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy Hefei China
| | - Yin Chen
- Gerontology Institute of Anhui Province The First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital) Hefei China
- Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy Hefei China
| | - Guodong Shen
- Gerontology Institute of Anhui Province The First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital) Hefei China
- Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy Hefei China
| | - Tingjuan Xu
- Gerontology Institute of Anhui Province The First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital) Hefei China
- Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy Hefei China
| | - Gan Shen
- Gerontology Institute of Anhui Province The First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital) Hefei China
- Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy Hefei China
| | - Zhigang Tian
- Cancer Immunotherapy Center The First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital) Hefei China
- Institute of Immunology and The CAS Key Laboratory of Innate Immunity and Chronic Disease School of Life Science and Medical Center University of Science and Technology of China Hefei China
| | - Shilian Hu
- Gerontology Institute of Anhui Province The First Affiliated Hospital of University of Science and Technology of China (Anhui Provincial Hospital) Hefei China
- Anhui Provincial Key Laboratory of Tumor Immunotherapy and Nutrition Therapy Hefei China
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19
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Yang Q, Li C, Wang W, Zheng R, Huang X, Deng H, Jin P, Tan K, Yan Y, Wang D. Infiltration pattern of gammadelta T cells and its association with local inflammatory response in the nasal mucosa of patients with allergic rhinitis. Int Forum Allergy Rhinol 2019; 9:1318-1326. [PMID: 31545872 DOI: 10.1002/alr.22421] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 07/29/2019] [Accepted: 07/29/2019] [Indexed: 01/02/2023]
Abstract
BACKGROUND gammadelta (γδ) T cells play important roles in allergic lower airway inflammation. However, little is known about their infiltration pattern in the nasal mucosa during upper airway inflammation. This study investigated γδ T cell distribution in nasal tissues of allergic rhinitis (AR) patients and the relationship between γδ T cells and other inflammatory cell types. METHODS A total of 30 patients with septal deviation were examined, including 22 with and 8 without AR. The localization of γδ T cells and other cells (eosinophils, neutrophils, mast cells, macrophages, B cells, cluster of differentiation [CD]4+ T cells, CD8+ T cells, regulatory T cells [Tregs], interferon [IFN]-γ+ cells, interleukin [IL]17+ cells, and IL10+ cells) was evaluated by histological analysis and immunohistochemistry. T helper cell (Th)1/Th2/Th17 and Treg gene expression was analyzed by quantitative polymerase chain reaction (PCR). RESULTS γδ T cells were localized in the epithelium or subepithelial region of nasal mucosa, and their infiltration was higher in AR patients relative to control subjects. The number of γδ T cells was associated with the presence of eosinophils, macrophages, mast cells, B cells, CD8+ T cells, Forkhead box (Fox)p3+ Tregs, IL17+ cells, and IL10+ cells but not of neutrophils or IFN-γ+ cells. The messenger RNA (mRNA) level of a γδ T cell subunit was positively correlated with those of Th1 genes (T-bet and IFN-γ), Th2 cytokine (C-C motif chemokine ligand 18), and Treg genes (Foxp3 and IL10). CONCLUSION γδ T cells play multiple roles in mucosal inflammation in AR including immune surveillance and adaptive and innate immune responses.
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Affiliation(s)
- Qintai Yang
- Department of Otorhinolaryngology-Head and Neck Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chunwei Li
- Department of Otorhinolaryngology-Head and Neck Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Weihao Wang
- Department of Otorhinolaryngology-Head and Neck Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Rui Zheng
- Department of Otorhinolaryngology-Head and Neck Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xuekun Huang
- Department of Otorhinolaryngology-Head and Neck Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Huiyi Deng
- Department of Otorhinolaryngology-Head and Neck Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Peng Jin
- Department of Otolaryngology, The Second Hospital of Shandong University, Shandong, China
| | - Kaisen Tan
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yan Yan
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, China
| | - Deyun Wang
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
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20
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Ramakrishnan RK, Al Heialy S, Hamid Q. Role of IL-17 in asthma pathogenesis and its implications for the clinic. Expert Rev Respir Med 2019; 13:1057-1068. [PMID: 31498708 DOI: 10.1080/17476348.2019.1666002] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Introduction: Asthma is a respiratory disorder typically characterized by T-helper type 2 (Th2) inflammation that is mediated by cytokines, including IL-4, IL-5, and IL-13. Pathophysiologically, airway inflammation involving prominent eosinophilia, elevated IgE synthesis, airway hyperresponsiveness, mucus hypersecretion, and airway remodeling manifest clinically in patients as wheezing, breathlessness, chest tightness and episodic coughing. However, the Th2 paradigm falls short in interpreting the full spectrum of asthma severity. Areas covered: Severe asthmatics represent a distinct phenotype with their mixed pattern of neutrophilic-eosinophilic infiltration and glucocorticoid insensitivity making them refractory to currently available therapies. Th17 cells and their signature cytokine, IL-17, have been implicated in the development of severe asthma. Here, we review the contribution of IL-17 in the pathological features of asthma, gathered from both human and animal studies published in Pubmed during the past 10 years, and briefly discuss the clinical implications of targeting IL-17 imbalance in asthmatic patients. Expert opinion: With advancement in our understanding of the role of IL-17 in asthma pathology, it is clear that IL-17 is a targetable pathway which may lead to improvement in clinical symptoms of asthma. However, further elucidation of the complex interactions unfurled by IL-17 is essential in the empirical development of effective therapeutic options for refractory asthmatics.
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Affiliation(s)
- Rakhee K Ramakrishnan
- College of Medicine, University of Sharjah , Sharjah , United Arab Emirates.,Sharjah Institute for Medical Research, University of Sharjah , Sharjah , United Arab Emirates
| | - Saba Al Heialy
- College of Medicine, Mohammed bin Rashid University of Medicine and Health Sciences , Dubai , United Arab Emirates.,Meakins-Christie Laboratories, Research Institute of the McGill University Healthy Center , Montreal , Quebec , Canada
| | - Qutayba Hamid
- College of Medicine, University of Sharjah , Sharjah , United Arab Emirates.,Meakins-Christie Laboratories, Research Institute of the McGill University Healthy Center , Montreal , Quebec , Canada
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21
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de‐Oliveira MG, Lira AAL, Sgnotto FR, Inoue AHS, Santos LS, Nakamatsu BY, Duarte AJS, Leite‐de‐Moraes M, Victor JR. Maternal IgG impairs the maturation of offspring intrathymic IL‐17‐producing γδT cells: Implications for murine and human allergies. Clin Exp Allergy 2019; 49:1000-1012. [DOI: 10.1111/cea.13393] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 02/20/2019] [Accepted: 03/23/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Marília G. de‐Oliveira
- Laboratory of Medical Investigation LIM 56, Division of Clinical Dermatology, Medical School University of Sao Paulo Sao Paulo Brazil
| | - Aline A. L. Lira
- Laboratory of Medical Investigation LIM 56, Division of Clinical Dermatology, Medical School University of Sao Paulo Sao Paulo Brazil
| | - Fábio R. Sgnotto
- Division of Hematology, Medical School University of Sao Paulo Sao Paulo Brazil
| | - Amanda H. S. Inoue
- Laboratory of Medical Investigation LIM 56, Division of Clinical Dermatology, Medical School University of Sao Paulo Sao Paulo Brazil
| | - Ludimila S. Santos
- Laboratory of Medical Investigation LIM 56, Division of Clinical Dermatology, Medical School University of Sao Paulo Sao Paulo Brazil
- Division of Environmental Health Faculdades Metropolitanas Unidas (FMU), Laureate International Universities Sao Paulo Brazil
| | - Bernardo Y. Nakamatsu
- Division of Environmental Health Faculdades Metropolitanas Unidas (FMU), Laureate International Universities Sao Paulo Brazil
| | - Alberto J. S. Duarte
- Laboratory of Medical Investigation LIM 56, Division of Clinical Dermatology, Medical School University of Sao Paulo Sao Paulo Brazil
- Division of Pathology, Medical School University of Sao Paulo Sao Paulo Brazil
| | - Maria Leite‐de‐Moraes
- Laboratory of Immunoregulation and Immunopathology INEM (Institut Necker‐Enfants Malades), CNRS UMR8253, INSERM UMR1151, Université Paris Descartes Paris France
| | - Jefferson R. Victor
- Laboratory of Medical Investigation LIM 56, Division of Clinical Dermatology, Medical School University of Sao Paulo Sao Paulo Brazil
- Division of Environmental Health Faculdades Metropolitanas Unidas (FMU), Laureate International Universities Sao Paulo Brazil
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22
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Vroman H, Das T, Bergen IM, van Hulst JAC, Ahmadi F, van Loo G, Lubberts E, Hendriks RW, Kool M. House dust mite-driven neutrophilic airway inflammation in mice with TNFAIP3-deficient myeloid cells is IL-17-independent. Clin Exp Allergy 2018; 48:1705-1714. [PMID: 30171721 DOI: 10.1111/cea.13262] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Revised: 06/25/2018] [Accepted: 07/23/2018] [Indexed: 01/08/2023]
Abstract
BACKGROUND Asthma is a heterogeneous disease of the airways that involves several types of granulocytic inflammation. Recently, we have shown that the activation status of myeloid cells regulated by TNFAIP3/A20 is a crucial determinant of eosinophilic or neutrophilic airway inflammation. However, whether neutrophilic inflammation observed in this model is dependent on IL-17 remains unknown. OBJECTIVE In this study, we investigated whether IL-17RA-signalling is essential for eosinophilic or neutrophilic inflammation in house dust mite (HDM)-driven airway inflammation. METHODS Tnfaip3fl/fl xLyz2+/cre (Tnfaip3LysM-KO ) mice were crossed to Il17raKO mice, generating Tnfaip3LysM Il17raKO mice and subjected to an HDM-driven airway inflammation model. RESULTS Both eosinophilic and neutrophilic inflammation observed in HDM-exposed WT and Tnfaip3LysM-KO mice respectively were unaltered in the absence of IL-17RA. Production of IL-5, IL-13 and IFN-γ by CD4+ T cells was similar between WT, Tnfaip3LysM-KO and Il17raKO mice, whereas mucus-producing cells in Tnfaip3LysM-KO Il17raKO mice were reduced compared to controls. Strikingly, spontaneous accumulation of pulmonary Th1, Th17 and γδ-17 T cells was observed in Tnfaip3LysM-KO Il17raKO mice, but not in the other genotypes. Th17 cell-associated cytokines such as GM-CSF and IL-22 were increased in the lungs of HDM-exposed Tnfaip3LysM-KO Il17raKO mice, compared to IL-17RA-sufficient controls. Moreover, neutrophilic chemo-attractants CXCL1, CXCL2, CXCL12 and Th17-promoting cytokines IL-1β and IL-6 were unaltered between Tnfaip3LysM-KO and Tnfaip3LysM-KO Il17raKO mice. CONCLUSION AND CLINICAL RELEVANCE These findings show that neutrophilic airway inflammation induced by activated TNFAIP3/A20-deficient myeloid cells can develop in the absence of IL-17RA-signalling. Neutrophilic inflammation is likely maintained by similar quantities of pro-inflammatory cytokines IL-1β and IL-6 that can, independently of IL-17-signalling, induce the expression of neutrophil chemo-attractants.
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Affiliation(s)
- Heleen Vroman
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Tridib Das
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Ingrid M Bergen
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
| | | | - Fatemeh Ahmadi
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Geert van Loo
- VIB Center for Inflammation Research, VIB, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Erik Lubberts
- Department of Rheumatology, Erasmus MC, Rotterdam, The Netherlands
| | - Rudi W Hendriks
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
| | - Mirjam Kool
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, The Netherlands
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23
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Rajput C, Han M, Bentley JK, Lei J, Ishikawa T, Wu Q, Hinde JL, Callear AP, Stillwell TL, Jackson WT, Martin ET, Hershenson MB. Enterovirus D68 infection induces IL-17-dependent neutrophilic airway inflammation and hyperresponsiveness. JCI Insight 2018; 3:121882. [PMID: 30135310 PMCID: PMC6141171 DOI: 10.1172/jci.insight.121882] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 07/03/2018] [Indexed: 12/15/2022] Open
Abstract
Enterovirus D68 (EV-D68) shares biologic features with rhinovirus (RV). In 2014, a nationwide outbreak of EV-D68 was associated with severe asthma-like symptoms. We sought to develop a mouse model of EV-D68 infection and determine the mechanisms underlying airway disease. BALB/c mice were inoculated intranasally with EV-D68 (2014 isolate), RV-A1B, or sham, alone or in combination with anti-IL-17A or house dust mite (HDM) treatment. Like RV-A1B, lung EV-D68 viral RNA peaked 12 hours after infection. EV-D68 induced airway inflammation, expression of cytokines (TNF-α, IL-6, IL-12b, IL-17A, CXCL1, CXCL2, CXCL10, and CCL2), and airway hyperresponsiveness, which were suppressed by anti-IL-17A antibody. Neutrophilic inflammation and airway responsiveness were significantly higher after EV-D68 compared with RV-A1B infection. Flow cytometry showed increased lineage-, NKp46-, RORγt+ IL-17+ILC3s and γδ T cells in the lungs of EV-D68-treated mice compared with those in RV-treated mice. EV-D68 infection of HDM-exposed mice induced additive or synergistic increases in BAL neutrophils and eosinophils and expression of IL-17, CCL11, IL-5, and Muc5AC. Finally, patients from the 2014 epidemic period with EV-D68 showed significantly higher nasopharyngeal IL-17 mRNA levels compared with patients with RV-A infection. EV-D68 infection induces IL-17-dependent airway inflammation and hyperresponsiveness, which is greater than that generated by RV-A1B, consistent with the clinical picture of severe asthma-like symptoms.
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Affiliation(s)
- Charu Rajput
- Departments of Pediatrics and Communicable Diseases, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Mingyuan Han
- Departments of Pediatrics and Communicable Diseases, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - J. Kelley Bentley
- Departments of Pediatrics and Communicable Diseases, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Jing Lei
- Departments of Pediatrics and Communicable Diseases, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Tomoko Ishikawa
- Departments of Pediatrics and Communicable Diseases, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Qian Wu
- Departments of Pediatrics and Communicable Diseases, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Joanna L. Hinde
- Departments of Pediatrics and Communicable Diseases, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - Amy P. Callear
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, Michigan, USA
| | - Terri L. Stillwell
- Departments of Pediatrics and Communicable Diseases, University of Michigan Medical School, Ann Arbor, Michigan, USA
| | - William T. Jackson
- Department of Microbiology and Immunology, University of Maryland School of Medicine, Baltimore, MD, USA
| | - Emily T. Martin
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, Michigan, USA
| | - Marc B. Hershenson
- Departments of Pediatrics and Communicable Diseases, University of Michigan Medical School, Ann Arbor, Michigan, USA
- Department of Molecular and Integrative Physiology, University of Michigan Medical School, Ann Arbor, Michigan, USA
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24
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Diesel exhaust particles up-regulate interleukin-17A expression via ROS/NF-κB in airway epithelium. Biochem Pharmacol 2018; 151:1-8. [PMID: 29499168 DOI: 10.1016/j.bcp.2018.02.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Accepted: 02/22/2018] [Indexed: 01/10/2023]
Abstract
IL-17A is implicated in many aspects of pathogenesis of severe asthma, including inducing neutrophilic inflammation, airway hyperresponsiveness, steroid insensitivity and airway remodeling. Diesel exhaust particles (DEP) emission from vehicles has been shown to expand Th17 cells to increase IL-17A release that contributes to DEP-mediated exacerbation of asthma severity. It is not known whether non-immune cells in airways may also release IL-17A in response to DEP exposure. In this study, We found IL-17A expression was upregulated in the epithelium of severe allergic asthma patients from high road traffic pollution areas compared to those in low. Furthermore, we found DEP concentration-dependently increased IL-17A synthesis and release by 122.3 ± 15.72% and 235.5 ± 18.37%, respectively in primary bronchial epithelial cells (PBEC), accompanied with increased ROS production. Pretreatment of ROS scavenger (NAC) significantly inhibited DEP-induced IL-17A mRNA expression. DEP-induced IκBα degradation can be inhibited by NAC. We also found DEP increased p65 and RelB subunits expression, and pretreatment of NF-κB inhibitor (SN50) also inhibited DEP-induced IL-17A expression. We further found DEP increased NF-κB subunit RelB recruitment to IL-17A promoter in PBEC and airway tissue of severe allergic asthma patients from high road traffic pollution areas. These results indicate DEP stimulates IL-17A expression in airway epithelium through ROS/NF-κB pathway, and provide a possible link between traffic pollution exposure and IL-17A-related responses in severe allergic asthma patients.
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25
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Russo RC, Savino B, Mirolo M, Buracchi C, Germano G, Anselmo A, Zammataro L, Pasqualini F, Mantovani A, Locati M, Teixeira MM. The atypical chemokine receptor ACKR2 drives pulmonary fibrosis by tuning influx of CCR2 + and CCR5 + IFNγ-producing γδT cells in mice. Am J Physiol Lung Cell Mol Physiol 2018; 314:L1010-L1025. [PMID: 29469612 DOI: 10.1152/ajplung.00233.2017] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Chemokines coordinate lung inflammation and fibrosis by acting on chemokine receptors expressed on leukocytes and other cell types. Atypical chemokine receptors (ACKRs) bind, internalize, and degrade chemokines, tuning homeostasis and immune responses. ACKR2 recognizes and decreases the levels of inflammatory CC chemokines. The role of ACKR2 in fibrogenesis is unknown. The purpose of the study was to investigate the role of ACKR2 in the context of pulmonary fibrosis. The effects of ACKR2 expression and deficiency during inflammation and fibrosis were analyzed using a bleomycin-model of fibrosis, ACKR2-deficient mice, bone marrow chimeras, and antibody-mediated leukocyte depletion. ACKR2 was upregulated acutely in response to bleomycin and normalized over time. ACKR2-/- mice showed reduced lethality and lung fibrosis. Bone marrow chimeras showed that lethality and fibrosis depended on ACKR2 expression in pulmonary resident (nonhematopoietic) cells but not on leukocytes. ACKR2-/- mice exhibited decreased expression of tissue-remodeling genes, reduced leukocyte influx, pulmonary injury, and dysfunction. ACKR2-/- mice had early increased levels of CCL5, CCL12, CCL17, and IFNγ and an increased number of CCR2+ and CCR5+ IFNγ-producing γδT cells in the airways counterbalanced by low Th17-lymphocyte influx. There was reduced accumulation of IFNγ-producing γδT cells in CCR2-/- and CCR5-/- mice. Moreover, depletion of γδT cells worsened the clinical symptoms induced by bleomycin and reversed the phenotype of ACKR2-/- mice exposed to bleomycin. ACKR2 controls the CC chemokine expression that drives the influx of CCR2+ and CCR5+ IFNγ-producing γδT cells, tuning the Th17 response that mediated pulmonary fibrosis triggered by bleomycin instillation.
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Affiliation(s)
- Remo C Russo
- Laboratory of Pulmonary Immunology and Mechanics, Department of Physiology and Biophysics, Institute of Biological Sciences, Universidade Federal de Minas Gerais , Belo Horizonte , Brazil.,Laboratory of Immunopharmacology, Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais , Belo Horizonte , Brazil.,Humanitas Clinical and Research Center, Rozzano, Italy
| | - Benedetta Savino
- Humanitas Clinical and Research Center, Rozzano, Italy.,Department of Medical Biotechnology and Translational Medicine, University of Milan , Milan , Italy
| | | | | | | | | | | | | | - Alberto Mantovani
- Humanitas Clinical and Research Center, Rozzano, Italy.,Humanitas University, Rozzano, Italy
| | - Massimo Locati
- Humanitas Clinical and Research Center, Rozzano, Italy.,Department of Medical Biotechnology and Translational Medicine, University of Milan , Milan , Italy
| | - Mauro M Teixeira
- Laboratory of Immunopharmacology, Department of Biochemistry and Immunology, Institute of Biological Sciences, Universidade Federal de Minas Gerais , Belo Horizonte , Brazil
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26
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Zaidi I, Diallo H, Conteh S, Robbins Y, Kolasny J, Orr-Gonzalez S, Carter D, Butler B, Lambert L, Brickley E, Morrison R, Sissoko M, Healy SA, Sim BKL, Doumbo OK, Hoffman SL, Duffy PE. γδ T Cells Are Required for the Induction of Sterile Immunity during Irradiated Sporozoite Vaccinations. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2017; 199:3781-3788. [PMID: 29079696 PMCID: PMC5698172 DOI: 10.4049/jimmunol.1700314] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 10/02/2017] [Indexed: 11/19/2022]
Abstract
Whole-sporozoite vaccines confer sterilizing immunity to malaria-naive individuals by unknown mechanisms. In the first PfSPZ Vaccine trial ever in a malaria-endemic population, Vδ2 γδ T cells were significantly elevated and Vγ9/Vδ2 transcripts ranked as the most upregulated in vaccinees who were protected from Plasmodium falciparum infection. In a mouse model, absence of γδ T cells during vaccination impaired protective CD8 T cell responses and ablated sterile protection. γδ T cells were not required for circumsporozoite protein-specific Ab responses, and γδ T cell depletion before infectious challenge did not ablate protection. γδ T cells alone were insufficient to induce protection and required the presence of CD8α+ dendritic cells. In the absence of γδ T cells, CD8α+ dendritic cells did not accumulate in the livers of vaccinated mice. Altogether, our results show that γδ T cells were essential for the induction of sterile immunity during whole-organism vaccination.
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Affiliation(s)
- Irfan Zaidi
- Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852
| | - Hama Diallo
- Malaria Research and Training Center, Mali-National Institute of Allergy and Infectious Diseases International Center for Excellence in Research, University of Science, Techniques and Technologies of Bamako, Bamako, Mali; and
| | - Solomon Conteh
- Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852
| | - Yvette Robbins
- Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852
| | - Jacqueline Kolasny
- Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852
| | - Sachy Orr-Gonzalez
- Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852
| | - Dariyen Carter
- Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852
| | - Brandi Butler
- Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852
| | - Lynn Lambert
- Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852
| | - Elizabeth Brickley
- Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852
| | - Robert Morrison
- Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852
| | - Mahamadou Sissoko
- Malaria Research and Training Center, Mali-National Institute of Allergy and Infectious Diseases International Center for Excellence in Research, University of Science, Techniques and Technologies of Bamako, Bamako, Mali; and
| | - Sara A Healy
- Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852
| | | | - Ogobara K Doumbo
- Malaria Research and Training Center, Mali-National Institute of Allergy and Infectious Diseases International Center for Excellence in Research, University of Science, Techniques and Technologies of Bamako, Bamako, Mali; and
| | | | - Patrick E Duffy
- Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, MD 20852;
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27
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Lee W, Chang L, Huang Z, Huang J, Yang L, Wang Z, Zhang G. A Retrospective Analysis of γδ T Cell Expression in Chronic Rhinosinusitis and Its Association with Recurrence of Nasal Polyps. ORL J Otorhinolaryngol Relat Spec 2017; 79:251-263. [PMID: 28858878 DOI: 10.1159/000458444] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 01/27/2017] [Indexed: 12/15/2022]
Abstract
BACKGROUND/AIMS To examine whether γδ T cell is expressed in the nasal mucosa of chronic rhinosinusitis (CRS) patients and its potential association with recurrence of nasal polyps. METHODS Thirty-six patients with CRS with nasal polyps (CRSwNP) and 25 patients with CRS without nasal polyps (CRSsNP) were recruited. Twenty-six patients with other nasal diseases served as controls. The CRSwNP group was divided into the eosinophilic CRSwNP and noneosinophilic CRSwNP groups. The expression of γδ T cells was detected by immunohistochemistry. The expression of each subtype of γδ T cells was detected by using qRT-PCR. All patients underwent nasal endoscopy, and postoperative follow-up lasted over 12 months. CRS patients were evaluated by preoperative VAS scores of symptoms and nasal endoscopy Lund-Kennedy scores. RESULTS The expression of γδ T cells in the CRSwNP groups was stronger than in the CRSsNP and the control group (p < 0.05, p < 0.05). The expression of Vγ1+γδ T cells in the eosinophilic CRSwNP group was higher than that in the CRSsNP group and the control group (p < 0.05, p < 0.05). The expression of γδ T cells was associated with high rate of recurrence, tissue eosinophil infiltration, worse symptom score of nasal obstruction, and higher Lund-Kennedy score (all p < 0.05). CONCLUSIONS Increased expression of γδ T cells in CRSwNP may be associated with recurrence of nasal polyps.
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Affiliation(s)
- Wenting Lee
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangdong, China
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28
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Xue C, Wen M, Bao L, Li H, Li F, Liu M, Lv Q, An Y, Zhang X, Cao B. Vγ4 +γδT Cells Aggravate Severe H1N1 Influenza Virus Infection-Induced Acute Pulmonary Immunopathological Injury via Secreting Interleukin-17A. Front Immunol 2017; 8:1054. [PMID: 28912779 PMCID: PMC5583159 DOI: 10.3389/fimmu.2017.01054] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 08/14/2017] [Indexed: 12/23/2022] Open
Abstract
The influenza A (H1N1) pdm09 virus remains a critical global health concern and causes high levels of morbidity and mortality. Severe acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are the major outcomes among severely infected patients. Our previous study found that interleukin (IL)-17A production by humans or mice infected with influenza A (H1N1) pdm09 substantially contributes to ALI and subsequent morbidity and mortality. However, the cell types responsible for IL-17A production during the early stage of severe influenza A (H1N1) pdm09 infection remained unknown. In this study, a mouse model of severe influenza A (H1N1) pdm09 infection was established. Our results show that, in the lungs of infected mice, the percentage of γδT cells, but not the percentages of CD4+Th and CD8+Tc cells, gradually increased and peaked at 3 days post-infection (dpi). Further analysis revealed that the Vγ4+γδT subset, but not the Vγ1+γδT subset, was significantly increased among the γδT cells. At 3 dpi, the virus induced significant increases in IL-17A in the bronchoalveolar lavage fluid (BALF) and serum. IL-17A was predominantly secreted by γδT cells (especially the Vγ4+γδT subset), but not CD4+Th and CD8+Tc cells at the early stage of infection, and IL-1β and/or IL-23 were sufficient to induce IL-17A production by γδT cells. In addition to secreting IL-17A, γδT cells secreted interferon (IFN)-γ and expressed both an activation-associated molecule, natural killer group 2, member D (NKG2D), and an apoptosis-associated molecule, FasL. Depletion of γδT cells or the Vγ4+γδT subset significantly rescued the virus-induced weight loss and improved the survival rate by decreasing IL-17A secretion and reducing immunopathological injury. This study demonstrated that, by secreting IL-17A, lung Vγ4+γδT cells, at least, in part mediated influenza A (H1N1) pdm09-induced immunopathological injury. This mechanism might serve as a promising new target for the prevention and treatment of ALI induced by influenza A (H1N1) pdm09.
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Affiliation(s)
- Chunxue Xue
- Department of Respiratory and Critical Care Medicine, Beijing Luhe Hospital, Capital Medical University, Beijing, China
| | - Mingjie Wen
- Department of Immunology, The Research Centre of Microbiome, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Linlin Bao
- Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Hui Li
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China
| | - Fengdi Li
- Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Meng Liu
- Department of Pulmonary and Critical Care Medicine, Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical University, Beijing, China
| | - Qi Lv
- Institute of Laboratory Animal Sciences, Chinese Academy of Medical Sciences, Beijing, China
| | - Yunqing An
- Department of Immunology, The Research Centre of Microbiome, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Xulong Zhang
- Department of Immunology, The Research Centre of Microbiome, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Bin Cao
- Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, Beijing, China.,Center for Respiratory Diseases, Department of Pulmonary and Critical Care Medicine, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, Beijing, China.,Department of Respiratory Medicine, Capital Medical University, Beijing, China
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29
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Cheng M, Hu S. Lung-resident γδ T cells and their roles in lung diseases. Immunology 2017; 151:375-384. [PMID: 28555812 PMCID: PMC5506441 DOI: 10.1111/imm.12764] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Revised: 05/12/2017] [Accepted: 05/20/2017] [Indexed: 12/15/2022] Open
Abstract
γδ T cells are greatly enriched in mucosal and epithelial sites, such as the skin, respiratory, digestive and reproductive tracts, and they are defined as tissue-resident immune cells. In these tissues, the characteristics and biological roles of γδ T cells are distinguished from each other. The lungs represent the most challenging immunological dilemma for the host, and they have their own effective immune system. The abundance of γδ T cells, an estimated 8-20% of resident pulmonary lymphocytes in the lung, maintains lung tissue homeostasis. In this review, we summarize the recent research progress regarding lung-resident γδ T cells, including their development, residency and immune characteristics, and discuss the involvement of γδ T cells in infectious diseases of the lung, including bacterial, viral and fungal infections; lung allergic disease; lung inflammation and fibrosis; and lung cancer.
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Affiliation(s)
- Min Cheng
- Gerontology Institute of Anhui ProvinceAnhui Province HospitalAnhui Medical UniversityHefeiChina
- Anhui Provincial Key Laboratory of Tumour Immunotherapy and Nutrition TherapyHefeiChina
| | - Shilian Hu
- Gerontology Institute of Anhui ProvinceAnhui Province HospitalAnhui Medical UniversityHefeiChina
- Anhui Provincial Key Laboratory of Tumour Immunotherapy and Nutrition TherapyHefeiChina
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30
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Banuelos J, Cao Y, Shin SC, Lu NZ. Immunopathology alters Th17 cell glucocorticoid sensitivity. Allergy 2017; 72:331-341. [PMID: 27646878 PMCID: PMC5315659 DOI: 10.1111/all.13051] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2016] [Indexed: 12/14/2022]
Abstract
Th17 cells contribute to several inflammatory conditions and increasing evidence supports that Th17 cells are glucocorticoid resistant. However, Th17 cells in psoriasis and related diseases are glucocorticoid sensitive. We compare glucocorticoid sensitive and resistant immunological diseases and suggest that several aspects in Th17-related diseases alter glucocorticoid sensitivity of Th17 cells. We identify molecular pathways that are implicated in glucocorticoid sensitivity of Th17 cells in the literature, as this information is useful for developing approaches to overcome glucocorticoid-resistant immunopathology.
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Affiliation(s)
- J. Banuelos
- Division of Allergy-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - Y. Cao
- Division of Allergy-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - S. C. Shin
- Division of Allergy-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - N. Z. Lu
- Division of Allergy-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, IL
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Veres TZ, Kopcsányi T, van Panhuys N, Gerner MY, Liu Z, Rantakari P, Dunkel J, Miyasaka M, Salmi M, Jalkanen S, Germain RN. Allergen-Induced CD4+ T Cell Cytokine Production within Airway Mucosal Dendritic Cell-T Cell Clusters Drives the Local Recruitment of Myeloid Effector Cells. THE JOURNAL OF IMMUNOLOGY 2016; 198:895-907. [PMID: 27903737 DOI: 10.4049/jimmunol.1601448] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 11/07/2016] [Indexed: 12/14/2022]
Abstract
Allergic asthma develops in the mucosal tissue of small bronchi. At these sites, local cytokine production by Th2/Th17 cells is believed to be critical for the development of tissue eosinophilia/neutrophilia. Using the mouse trachea as a relevant model of human small airways, we performed advanced in vivo dynamic and in situ static imaging to visualize individual cytokine-producing T cells in the airway mucosa and to define their immediate cellular environment. Upon allergen sensitization, newly recruited CD4+ T cells formed discrete Ag-driven clusters with dendritic cells (DCs). Within T cell-DC clusters, a small fraction of CD4+ T cells produced IL-13 or IL-17 following prolonged Ag-specific interactions with DCs. As a result of local Th2 cytokine signaling, eosinophils were recruited into these clusters. Neutrophils also infiltrated these clusters in a T cell-dependent manner, but their mucosal distribution was more diffuse. Our findings reveal the focal nature of allergen-driven responses in the airways and define multiple steps with potential for interference with the progression of asthmatic pathology.
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Affiliation(s)
- Tibor Z Veres
- MediCity Research Laboratory, University of Turku, 20520 Turku, Finland; .,Lymphocyte Biology Section, Laboratory of Systems Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Tamás Kopcsányi
- MediCity Research Laboratory, University of Turku, 20520 Turku, Finland
| | - Nicholas van Panhuys
- Lymphocyte Biology Section, Laboratory of Systems Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892.,Sidra Medical and Research Center, Doha, Qatar
| | - Michael Y Gerner
- Lymphocyte Biology Section, Laboratory of Systems Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Zhiduo Liu
- Lymphocyte Biology Section, Laboratory of Systems Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892
| | - Pia Rantakari
- MediCity Research Laboratory, University of Turku, 20520 Turku, Finland
| | - Johannes Dunkel
- MediCity Research Laboratory, University of Turku, 20520 Turku, Finland
| | - Masayuki Miyasaka
- MediCity Research Laboratory, University of Turku, 20520 Turku, Finland.,World Premier International Immunology Frontier Research Center, Osaka University, Osaka 565-0871, Japan; and
| | - Marko Salmi
- MediCity Research Laboratory, University of Turku, 20520 Turku, Finland.,Department of Medical Microbiology and Immunology, University of Turku, 20520 Turku, Finland
| | - Sirpa Jalkanen
- MediCity Research Laboratory, University of Turku, 20520 Turku, Finland.,Department of Medical Microbiology and Immunology, University of Turku, 20520 Turku, Finland
| | - Ronald N Germain
- Lymphocyte Biology Section, Laboratory of Systems Biology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892;
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Zhao J, Chen C, Guo M, Tao Y, Cui P, Zhou Y, Qin N, Zheng J, Zhang J, Xu L. MicroRNA-7 Deficiency Ameliorates the Pathologies of Acute Lung Injury through Elevating KLF4. Front Immunol 2016; 7:389. [PMID: 27774091 PMCID: PMC5054040 DOI: 10.3389/fimmu.2016.00389] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 09/15/2016] [Indexed: 01/13/2023] Open
Abstract
Recent evidence showed that microRNA-7 (miR-7) played an important role in the pathologies of lung-related diseases. However, the potential role of miR-7 in acute lung injury (ALI) still remains poorly understood. Here, we assessed the effect of miR-7 deficiency on the pathology of ALI. We, first, found that the expression of miR-7 was upregulated in lung tissue in murine LPS-induced ALI model. Notably, we generated miR-7 knock down mice by using miRNA-Sponge technique and found that miR-7 deficiency could ameliorate the pathologies of lung as evidenced by accelerated body weight recovery, reduced level of bronchoalveolar lavage (BAL) proinflammatory cytokines and decreased number of BAL cells in ALI mice. Moreover, the proportion and number of various immune cells in BAL, including innate immune cell F4/80+ macrophages, γδT cells, NK1.1+ T cells, and CD11c+DCs, as well as adaptive immune cell CD4+ T cells and CD8+ T cells, also significantly changed, respectively. Mechanistic evidence showed that KLF4, a target molecule of miR-7, was upregulated in lung tissues in ALI model, accompanied by altered transduction of NF-κB, AKT, and ERK pathway. These data provided a previously unknown role of miR-7 in pathology of ALI, which could ultimately aid the understanding of development of ALI and the development of new therapeutic strategies against clinical inflammatory lung diseases.
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Affiliation(s)
- Juanjuan Zhao
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - Chao Chen
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - Mengmeng Guo
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - Yijin Tao
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - PanPan Cui
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - Ya Zhou
- Department of Medical Physics, Zunyi Medical College , Guizhou , China
| | - Nalin Qin
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - Jing Zheng
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - Jidong Zhang
- Department of Immunology, Zunyi Medical College , Guizhou , China
| | - Lin Xu
- Department of Immunology, Zunyi Medical College , Guizhou , China
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Pham Van L, Germaud N, Ramadan A, Thieblemont N. MyD88 modulates eosinophil and neutrophil recruitment as well as IL-17A production during allergic inflammation. Cell Immunol 2016; 310:116-122. [PMID: 27614844 DOI: 10.1016/j.cellimm.2016.08.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Revised: 08/03/2016] [Accepted: 08/25/2016] [Indexed: 12/24/2022]
Abstract
The contribution of dysregulated innate immune responses to the pathogenesis of allergic disease remains largely unknown. Herein, we addressed the role of Toll-like receptor signaling in airway inflammation by studying mice rendered deficient for the myeloid differentiation factor 88 (MyD88-/-) which results in concurrent deficiencies in TLR and IL-1R1 signaling pathways. We show that the lack of MyD88 offers a partial protection from allergic disease evidenced by reduced airway eosinophilia and production of the Th17-associated effector cytokine IL-17A. By contrast, airway hyperreactivity and Th2 cytokine production, the cardinal features of allergic disease, remained unchanged. We found that the impaired IL-17A production in MyD88-/- mice was associated with defective CD4+ T cells, which failed to respond to IL-23 stimulation. The total number of Th17-associated effectors in lymph nodes was likewise decreased. Taken together, our results demonstrate that MyD88-dependent mechanisms are critical for orchestrating lung inflammatory responses, in terms of IL-17A production, as well as eosinophil and neutrophil recruitment.
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Affiliation(s)
- Linh Pham Van
- Université Paris Descartes, Paris 75015, France; CNRS UMR 8147, Necker Hospital, Paris 75015, France
| | - Nathalie Germaud
- Université Paris Descartes, Paris 75015, France; CNRS UMR 8147, Necker Hospital, Paris 75015, France
| | - Abdulraouf Ramadan
- Université Paris Descartes, Paris 75015, France; CNRS UMR 8147, Necker Hospital, Paris 75015, France
| | - Nathalie Thieblemont
- Université Paris Descartes, Paris 75015, France; CNRS UMR 8147, Necker Hospital, Paris 75015, France; INSERM U1016, Institut Cochin, Paris, France; CNRS UMR8104, Paris, France; Center of Excellence, INFLAMEX, France.
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Hall SL, Baker T, Lajoie S, Richgels PK, Yang Y, McAlees JW, van Lier A, Wills-Karp M, Sivaprasad U, Acciani TH, LeCras TD, Myers JB, Kovacic MB, Lewkowich IP. IL-17A enhances IL-13 activity by enhancing IL-13-induced signal transducer and activator of transcription 6 activation. J Allergy Clin Immunol 2016; 139:462-471.e14. [PMID: 27417023 DOI: 10.1016/j.jaci.2016.04.037] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 03/22/2016] [Accepted: 04/25/2016] [Indexed: 01/08/2023]
Abstract
BACKGROUND Increased IL-17A production has been associated with more severe asthma; however, the mechanisms whereby IL-17A can contribute to IL-13-driven pathology in asthmatic patients remain unclear. OBJECTIVE We sought to gain mechanistic insight into how IL-17A can influence IL-13-driven responses. METHODS The effect of IL-17A on IL-13-induced airway hyperresponsiveness, gene expression, mucus hypersecretion, and airway inflammation was assessed by using in vivo models of IL-13-induced lung pathology and in vitro culture of murine fibroblast cell lines and primary fibroblasts and human epithelial cell lines or primary human epithelial cells exposed to IL-13, IL-17A, or both. RESULTS Compared with mice given intratracheal IL-13 alone, those exposed to IL-13 and IL-17A had augmented airway hyperresponsiveness, mucus production, airway inflammation, and IL-13-induced gene expression. In vitro, IL-17A enhanced IL-13-induced gene expression in asthma-relevant murine and human cells. In contrast to the exacerbating influence of IL-17A on IL-13-induced responses, coexposure to IL-13 inhibited IL-17A-driven antimicrobial gene expression in vivo and in vitro. Mechanistically, in both primary human and murine cells, the IL-17A-driven increase in IL-13-induced gene expression was associated with enhanced IL-13-driven signal transducer and activator of transcription 6 activation. CONCLUSIONS Our data suggest that IL-17A contributes to asthma pathophysiology by increasing the capacity of IL-13 to activate intracellular signaling pathways, such as signal transducer and activator of transcription 6. These data represent the first mechanistic explanation of how IL-17A can directly contribute to the pathogenesis of IL-13-driven pathology.
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Affiliation(s)
- Sara L Hall
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Theresa Baker
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Stephane Lajoie
- Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Md
| | - Phoebe K Richgels
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Yanfen Yang
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Jaclyn W McAlees
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Adelaide van Lier
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Marsha Wills-Karp
- Bloomberg School of Public Health, Johns Hopkins University, Baltimore, Md
| | - Umasundari Sivaprasad
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Thomas H Acciani
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Timothy D LeCras
- Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Jocelyn Biagini Myers
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Melinda Butsch Kovacic
- Division of Asthma Research, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Ian P Lewkowich
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio.
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Tian BP, Hua W, Xia LX, Jin Y, Lan F, Lee JJ, Lee NA, Li W, Ying SM, Chen ZH, Shen HH. Exogenous interleukin-17A inhibits eosinophil differentiation and alleviates allergic airway inflammation. Am J Respir Cell Mol Biol 2016; 52:459-70. [PMID: 25180833 DOI: 10.1165/rcmb.2014-0097oc] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
IL-17 is known to play important roles in immune and inflammatory disease, such as in asthma, but its functions in allergic airway inflammation are still controversial, and the molecular mechanisms mediating these functions remain unclear. Increased production of eosinophils in bone marrow and their emergence in the airway have been linked to the onset and progression of allergic asthma. In this study, we investigated the effects of exogenous IL-17 on allergic airway inflammation and explored the underlying molecular mechanisms through eosinophil generation. Exogenous IL-17 significantly attenuated the features of allergic inflammation induced by ovalbumin in mice. It inhibited eosinophil differentiation both in vivo and in vitro, accompanied by down-regulated expression of CC chemokine receptor 3, GATA binding protein 1 (GATA-1), and GATA binding protein 2 (GATA-2), as well as reduced formation of common myeloid progenitors and eosinophil progenitors, but without influencing eosinophil apoptosis. IL-17 also significantly decreased the number of eosinophils in IL-5-transgenic mice, although it notably increased the levels of IL-3, IL-5, and granulocyte/macrophage colony-stimulating factor. In addition, IL-17 had little effect on secretion of the inflammatory cytokines by eosinophils. Neutralization of endogenous IL-17 significantly augmented eosinophil recruitment in the airways. Together, these findings suggest that exogenous IL-17 protects against allergic airway inflammation, most likely through inhibition of the eosinophil differentiation in bone marrow.
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Affiliation(s)
- Bao-ping Tian
- 1 Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
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Graser A, Ekici AB, Sopel N, Melichar VO, Zimmermann T, Papadopoulos NG, Taka S, Ferrazzi F, Vuorinen T, Finotto S. Rhinovirus inhibits IL-17A and the downstream immune responses in allergic asthma. Mucosal Immunol 2016; 9:1183-92. [PMID: 26732679 PMCID: PMC7099698 DOI: 10.1038/mi.2015.130] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2014] [Accepted: 11/09/2015] [Indexed: 02/04/2023]
Abstract
The proinflammatory cytokine interleukin-17A (IL-17A) is known to mediate antimicrobial activity, but its role during rhinovirus (RV) infections and in asthma needs further investigation. Therefore, we addressed the role of IL-17A during allergic asthma and antiviral immune response in human and murine immunocompetent cells. In this study we found that asthmatic children with a RV infection in their upper airways have upregulated mRNA levels of the antiviral cytokine interferon type I (IFN)-β and the transcription factor T-box 21 (TBX21) and reduced levels of IL-17A protein in their peripheral blood mononuclear cells (PBMCs). We also found that IL-17A inhibited RV1b replication in infected human lung epithelial cells A549. Furthermore, by using gene array analysis we discovered that targeted deletion of Il17a in murine lung CD4(+) T cells impaired Oas1g mRNA downstream of Ifnβ, independently from RV infection. Additionally, in PBMCs of children with a RV infection in their nasalpharyngeal fluid OAS1 gene expression was found downregulated. Finally RV1b inhibited IL-17A production in lung CD4(+) T cells in a setting of experimental asthma. These results indicate that the RV1b inhibits IL-17A in T helper type 17 cells and IL-17A clears RV1b infection in epithelial cells. In both cases IL-17A contributes to fend off RV1b infection by inducing genes downstream of interferon type I pathway.
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Affiliation(s)
- A Graser
- grid.411668.c0000 0000 9935 6525Department of Molecular Pneumology, Universitätsklinikum Erlangen, Erlangen, Germany
| | - A B Ekici
- grid.411668.c0000 0000 9935 6525Institute of Humangenetics, Universitätsklinikum Erlangen, Erlangen, Germany
| | - N Sopel
- grid.411668.c0000 0000 9935 6525Department of Molecular Pneumology, Universitätsklinikum Erlangen, Erlangen, Germany
| | - V O Melichar
- grid.411668.c0000 0000 9935 6525Department of Paediatrics and Adolescent Medicine, Paediatric Pneumology-Allergology, Universitätsklinikum Erlangen, Erlangen, Germany
| | - T Zimmermann
- grid.411668.c0000 0000 9935 6525Department of Paediatrics and Adolescent Medicine, Paediatric Pneumology-Allergology, Universitätsklinikum Erlangen, Erlangen, Germany
| | - N G Papadopoulos
- grid.5216.00000 0001 2155 0800Allergy and Clinical Immunology Unit, 2nd Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - S Taka
- grid.5216.00000 0001 2155 0800Allergy and Clinical Immunology Unit, 2nd Pediatric Clinic, National and Kapodistrian University of Athens, Athens, Greece
| | - F Ferrazzi
- grid.411668.c0000 0000 9935 6525Institute of Humangenetics, Universitätsklinikum Erlangen, Erlangen, Germany
| | - T Vuorinen
- grid.1374.10000 0001 2097 1371Department of Virology, University of Turku, Turku, Finland
| | - S Finotto
- grid.411668.c0000 0000 9935 6525Department of Molecular Pneumology, Universitätsklinikum Erlangen, Erlangen, Germany
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γδ T Cells Are Required for M2 Macrophage Polarization and Resolution of Ozone-Induced Pulmonary Inflammation in Mice. PLoS One 2015; 10:e0131236. [PMID: 26135595 PMCID: PMC4489797 DOI: 10.1371/journal.pone.0131236] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 05/29/2015] [Indexed: 12/21/2022] Open
Abstract
We examined the role of γδ T cells in the induction of alternatively activated M2 macrophages and the resolution of inflammation after ozone exposure. Wildtype (WT) mice and mice deficient in γδ T cells (TCRδ-/- mice) were exposed to air or to ozone (0.3 ppm for up to 72h) and euthanized immediately or 1, 3, or 5 days after cessation of exposure. In WT mice, M2 macrophages accumulated in the lungs over the course of ozone exposure. Pulmonary mRNA abundance of the M2 genes, Arg1, Retnla, and Clec10a, also increased after ozone. In contrast, no evidence of M2 polarization was observed in TCRδ-/- mice. WT but not TCRδ-/- mice expressed the M2c polarizing cytokine, IL-17A, after ozone exposure and WT mice treated with an IL-17A neutralizing antibody exhibited attenuated ozone-induced M2 gene expression. In WT mice, ozone-induced increases in bronchoalveolar lavage neutrophils and macrophages resolved quickly after cessation of ozone exposure returning to air exposed levels within 3 days. However, lack of M2 macrophages in TCRδ-/- mice was associated with delayed clearance of inflammatory cells after cessation of ozone and increased accumulation of apoptotic macrophages in the lungs. Delayed restoration of normal lung architecture was also observed in TCRδ-/- mice. In summary, our data indicate that γδ T cells are required for the resolution of ozone-induced inflammation, likely because γδ T cells, through their secretion of IL-17A, contribute to changes in macrophage polarization that promote clearance of apoptotic cells.
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Costa MFDS, de Negreiros CBT, Bornstein VU, Valente RH, Mengel J, Henriques MDG, Benjamim CF, Penido C. Murine IL-17+ Vγ4 T lymphocytes accumulate in the lungs and play a protective role during severe sepsis. BMC Immunol 2015; 16:36. [PMID: 26037291 PMCID: PMC4451961 DOI: 10.1186/s12865-015-0098-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Accepted: 05/19/2015] [Indexed: 12/14/2022] Open
Abstract
Background Lung inflammation is a major consequence of the systemic inflammatory response caused by severe sepsis. Increased migration of γδ T lymphocytes into the lungs has been previously demonstrated during experimental sepsis; however, the involvement of the γδ T cell subtype Vγ4 has not been previously described. Methods Severe sepsis was induced by cecal ligation and puncture (CLP; 9 punctures, 21G needle) in male C57BL/6 mice. γδ and Vγ4 T lymphocyte depletion was performed by 3A10 and UC3-10A6 mAb i.p. administration, respectively. Lung infiltrating T lymphocytes, IL-17 production and mortality rate were evaluated. Results Severe sepsis induced by CLP in C57BL/6 mice led to an intense lung inflammatory response, marked by the accumulation of γδ T lymphocytes (comprising the Vγ4 subtype). γδ T lymphocytes present in the lungs of CLP mice were likely to be originated from peripheral lymphoid organs and migrated towards CCL2, CCL3 and CCL5, which were highly produced in response to CLP-induced sepsis. Increased expression of CD25 by Vγ4 T lymphocytes was observed in spleen earlier than that by αβ T cells, suggesting the early activation of Vγ4 T cells. The Vγ4 T lymphocyte subset predominated among the IL-17+ cell populations present in the lungs of CLP mice (unlike Vγ1 and αβ T lymphocytes) and was strongly biased toward IL-17 rather than toward IFN-γ production. Accordingly, the in vivo administration of anti-Vγ4 mAb abrogated CLP-induced IL-17 production in mouse lungs. Furthermore, anti-Vγ4 mAb treatment accelerated mortality rate in severe septic mice, demonstrating that Vγ4 T lymphocyte play a beneficial role in host defense. Conclusions Overall, our findings provide evidence that early-activated Vγ4 T lymphocytes are the main responsible cells for IL-17 production in inflamed lungs during the course of sepsis and delay mortality of septic mice. Electronic supplementary material The online version of this article (doi:10.1186/s12865-015-0098-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Maria Fernanda de Souza Costa
- Laboratório de Farmacologia Aplicada, Departamento de Farmacologia, Farmanguinhos, Fundação Oswaldo Cruz, Rua Sizenando Nabuco 100, Manguinhos, Rio de Janeiro, RJ, CEP 21041-250, Brazil. .,Centro de Desenvolvimento Tecnológico em Saúde, Instituto Nacional de Ciência e Tecnologia de Inovação em Doenças Negligenciadas (INCT-IDN), Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
| | - Catarina Bastos Trigo de Negreiros
- Laboratório de Farmacologia Aplicada, Departamento de Farmacologia, Farmanguinhos, Fundação Oswaldo Cruz, Rua Sizenando Nabuco 100, Manguinhos, Rio de Janeiro, RJ, CEP 21041-250, Brazil.
| | - Victor Ugarte Bornstein
- Laboratório de Farmacologia Aplicada, Departamento de Farmacologia, Farmanguinhos, Fundação Oswaldo Cruz, Rua Sizenando Nabuco 100, Manguinhos, Rio de Janeiro, RJ, CEP 21041-250, Brazil. .,Mount Sinai School of Medicine, New York City, USA.
| | - Richard Hemmi Valente
- Laboratório de Toxinologia, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
| | - José Mengel
- Laboratório de Imunologia, Faculdade de Medicina de Petrópolis, Petrópolis, Rio de Janeiro, Brazil. .,Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
| | - Maria das Graças Henriques
- Laboratório de Farmacologia Aplicada, Departamento de Farmacologia, Farmanguinhos, Fundação Oswaldo Cruz, Rua Sizenando Nabuco 100, Manguinhos, Rio de Janeiro, RJ, CEP 21041-250, Brazil. .,Centro de Desenvolvimento Tecnológico em Saúde, Instituto Nacional de Ciência e Tecnologia de Inovação em Doenças Negligenciadas (INCT-IDN), Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
| | - Claudia Farias Benjamim
- Laboratório de Inflamação, Estresse Oxidativo e Câncer, Centro de Ciências da Saúde, Instituto de Ciências Biomédicas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
| | - Carmen Penido
- Laboratório de Farmacologia Aplicada, Departamento de Farmacologia, Farmanguinhos, Fundação Oswaldo Cruz, Rua Sizenando Nabuco 100, Manguinhos, Rio de Janeiro, RJ, CEP 21041-250, Brazil. .,Centro de Desenvolvimento Tecnológico em Saúde, Instituto Nacional de Ciência e Tecnologia de Inovação em Doenças Negligenciadas (INCT-IDN), Fundação Oswaldo Cruz, Rio de Janeiro, Brazil.
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Ullah MA, Revez JA, Loh Z, Simpson J, Zhang V, Bain L, Varelias A, Rose-John S, Blumenthal A, Smyth MJ, Hill GR, Sukkar MB, Ferreira MAR, Phipps S. Allergen-induced IL-6 trans-signaling activates γδ T cells to promote type 2 and type 17 airway inflammation. J Allergy Clin Immunol 2015; 136:1065-73. [PMID: 25930193 DOI: 10.1016/j.jaci.2015.02.032] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 01/08/2015] [Accepted: 02/26/2015] [Indexed: 12/15/2022]
Abstract
BACKGROUND A variant in the IL-6 receptor (IL-6R) gene increases asthma risk and is predicted to decrease IL-6 classic signaling and increase IL-6 trans-signaling. This suggests that inhibition of IL-6 trans-signaling, but not classic signaling, might suppress allergic airway inflammation. OBJECTIVES We sought to determine whether IL-6 signaling contributes to (1) acute experimental asthma induced by clinically relevant allergens and (2) variation in asthma clinical phenotypes in asthmatic patients. METHODS Mice were sensitized to house dust mite (HDM) or cockroach at day 0, treated with IL-6R inhibitors at day 13, and challenged with the same allergen at days 14 to 17. End points were measured 3 hours after the final challenge. IL-6 and soluble IL-6 receptor (sIL-6R) expression in induced sputum of asthmatic patients was correlated with asthma clinical phenotypes. RESULTS Both HDM and cockroach induced a type 2/type 17 cytokine profile and mixed granulocytic inflammation in the airways. Both allergens increased IL-6 expression in the airways, but only cockroach induced sIL-6R expression. Therefore HDM challenge promoted IL-6 classic signaling but not trans-signaling; in this model treatment with anti-IL-6R did not suppress airway inflammation. In contrast, cockroach-induced inflammation involved activation of IL-6 trans-signaling and production of IL-17A by γδ T cells. Anti-IL-6R, selective blockade of sIL-6R, or γδ T-cell deficiency significantly attenuated cockroach-induced inflammation. Asthmatic patients with high airway IL-6 and sIL-6R levels were enriched for the neutrophilic and mixed granulocytic subtypes. CONCLUSION Experimental asthma associated with both high IL-6 and high sIL-6R levels in the airways is attenuated by treatment with IL-6R inhibitors.
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Affiliation(s)
- Md Ashik Ullah
- Woolcock Institute of Medical Research, Sydney Medical School, University of Sydney, Sydney, Australia; Laboratory for Respiratory Neuroscience and Mucosal Immunity, School of Biomedical Sciences, University of Queensland, Brisbane, Australia; QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Joana A Revez
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Zhixuan Loh
- Laboratory for Respiratory Neuroscience and Mucosal Immunity, School of Biomedical Sciences, University of Queensland, Brisbane, Australia
| | - Jennifer Simpson
- Laboratory for Respiratory Neuroscience and Mucosal Immunity, School of Biomedical Sciences, University of Queensland, Brisbane, Australia
| | - Vivian Zhang
- Laboratory for Respiratory Neuroscience and Mucosal Immunity, School of Biomedical Sciences, University of Queensland, Brisbane, Australia
| | - Lisa Bain
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | | | - Stefan Rose-John
- Department of Biochemistry, Christian-Albrechts-Universität of Kiel, Kiel, Germany
| | - Antje Blumenthal
- University of Queensland Diamantina Institute, Translational Research Institute, Brisbane, Australia
| | - Mark J Smyth
- QIMR Berghofer Medical Research Institute, Brisbane, Australia; School of Medicine, University of Queensland, Herston, Australia
| | - Geoffrey R Hill
- QIMR Berghofer Medical Research Institute, Brisbane, Australia; Department of Bone Marrow Transplantation, Royal Brisbane Hospital, Brisbane, Australia
| | - Maria B Sukkar
- Woolcock Institute of Medical Research, Sydney Medical School, University of Sydney, Sydney, Australia; School of Pharmacy, Graduate School of Health, University of Technology Sydney, Sydney, Australia
| | | | - Simon Phipps
- Laboratory for Respiratory Neuroscience and Mucosal Immunity, School of Biomedical Sciences, University of Queensland, Brisbane, Australia.
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Nitric oxide sustains IL-1β expression in human dendritic cells enhancing their capacity to induce IL-17-producing T-cells. PLoS One 2015; 10:e0120134. [PMID: 25853810 PMCID: PMC4390375 DOI: 10.1371/journal.pone.0120134] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Accepted: 02/04/2015] [Indexed: 01/09/2023] Open
Abstract
The role played by lung dendritic cells (DCs) which are influenced by external antigens and by their redox state in controlling inflammation is unclear. We studied the role played by nitric oxide (NO) in DC maturation and function. Human DCs were stimulated with a long-acting NO donor, DPTA NONOate, prior to exposure to lipopolysaccharide (LPS). Dose-and time-dependent experiments were performed with DCs with the aim of measuring the release and gene expression of inflammatory cytokines capable of modifying T-cell differentiation, towardsTh1, Th2 and Th17 cells. NO changed the pattern of cytokine release by LPS-matured DCs, dependent on the concentration of NO, as well as on the timing of its addition to the cells during maturation. Addition of NO before LPS-induced maturation strongly inhibited the release of IL-12, while increasing the expression and release of IL-23, IL-1β and IL-6, which are all involved in Th17 polarization. Indeed, DCs treated with NO efficiently induced the release of IL-17 by T-cells through IL-1β. Our work highlights the important role that NO may play in sustaining inflammation during an infection through the preferential differentiation of the Th17 lineage.
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Chesné J, Braza F, Mahay G, Brouard S, Aronica M, Magnan A. IL-17 in severe asthma. Where do we stand? Am J Respir Crit Care Med 2015; 190:1094-101. [PMID: 25162311 DOI: 10.1164/rccm.201405-0859pp] [Citation(s) in RCA: 258] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
Asthma is a major chronic disease ranging from mild to severe refractory disease and is classified into various clinical phenotypes. Severe asthma is difficult to treat and frequently requires high doses of systemic steroids. In some cases, severe asthma even responds poorly to steroids. Several studies have suggested a central role of IL-17 (also called IL-17A) in severe asthma. Indeed, high levels of IL-17 are found in induced sputum and bronchial biopsies obtained from patients with severe asthma. The recent identification of a steroid-insensitive pathogenic Th17 pathway is therefore of major interest. In addition, IL-17A has been described in multiple aspects of asthma pathogenesis, including structural alterations of epithelial cells and smooth muscle contraction. In this perspective article, we frame the topic of IL-17A effects in severe asthma by reviewing updated information from human studies. We summarize and discuss the implications of IL-17 in the induction of neutrophilic airway inflammation, steroid insensitivity, the epithelial cell profile, and airway remodeling.
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Affiliation(s)
- Julie Chesné
- 1 Institut national de la santé et de la recherche médicale (INSERM), Unité mixte de recherche (UMR) 1087, l'Institut du Thorax, Nantes, France
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Busman-Sahay KO, Walrath T, Huber S, O'Connor W. Cytokine crowdsourcing: multicellular production of TH17-associated cytokines. J Leukoc Biol 2015; 97:499-510. [PMID: 25548251 PMCID: PMC5477895 DOI: 10.1189/jlb.3ru0814-386r] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 11/17/2014] [Accepted: 11/20/2014] [Indexed: 12/14/2022] Open
Abstract
In the 2 decades since its discovery, IL-17A has become appreciated for mounting robust, protective responses against bacterial and fungal pathogens. When improperly regulated, however, IL-17A can play a profoundly pathogenic role in perpetuating inflammation and has been linked to a wide variety of debilitating diseases. IL-17A is often present in a composite milieu that includes cytokines produced by TH17 cells (i.e., IL-17F, IL-21, IL-22, and IL-26) or associated with other T cell lineages (e.g., IFN-γ). These combinatorial effects add mechanistic complexity and more importantly, contribute differentially to disease outcome. Whereas TH17 cells are among the best-understood cell types that secrete IL-17A, they are frequently neither the earliest nor dominant producers. Indeed, non-TH17 cell sources of IL-17A can dramatically alter the course and severity of inflammatory episodes. The dissection of the temporal regulation of TH17-associated cytokines and the resulting net signaling outcomes will be critical toward understanding the increasingly intricate role of IL-17A and TH17-associated cytokines in disease, informing our therapeutic decisions. Herein, we discuss important non-TH17 cell sources of IL-17A and other TH17-associated cytokines relevant to inflammatory events in mucosal tissues.
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Affiliation(s)
- Kathleen O Busman-Sahay
- *Center for Immunology and Microbial Disease, Albany Medical Center, Albany, New York, USA; and Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Travis Walrath
- *Center for Immunology and Microbial Disease, Albany Medical Center, Albany, New York, USA; and Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Samuel Huber
- *Center for Immunology and Microbial Disease, Albany Medical Center, Albany, New York, USA; and Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - William O'Connor
- *Center for Immunology and Microbial Disease, Albany Medical Center, Albany, New York, USA; and Department of Internal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Patil RS, Bhat SA, Dar AA, Chiplunkar SV. The Jekyll and Hyde story of IL17-Producing γδT Cells. Front Immunol 2015; 6:37. [PMID: 25699053 PMCID: PMC4316782 DOI: 10.3389/fimmu.2015.00037] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 01/20/2015] [Indexed: 12/19/2022] Open
Abstract
In comparison to conventional αβT cells, γδT cells are considered as specialized T cells based on their contributions in regulating immune response. γδT cells sense early environmental signals and initiate local immune-surveillance. The development of functional subtypes of γδT cells takes place in the thymus but they also exhibit plasticity in response to the activating signals and cytokines encountered in the extrathymic region. Thymic development of Tγδ1 requires strong TCR, CD27, and Skint-1 signals. However, differentiation of IL17-producing γδT cells (Tγδ17) is independent of Skint-1 or CD27 but requires notch signaling along with IL6 and TGFβ cytokines in the presence of weak TCR signal. In response to cytokines like IL23, IL6, and IL1β, Tγδ17 outshine Th17 cells for early activation and IL17 secretion. Despite expressing similar repertoire of lineage transcriptional factors, cytokines, and chemokine receptors, Tγδ17 cells differ from Th17 in spatial and temporal fashion. There are compelling reasons to consider significant role of Tγδ17 cells in regulating inflammation and thereby disease outcome. Tγδ17 cells regulate mobilization of innate immune cells and induce keratinocytes to secrete anti-microbial peptides thus exhibiting protective functions in anti-microbial immunity. In contrast, dysregulated Tγδ17 cells inhibit Treg cells, exacerbate autoimmunity, and are also known to support carcinogenesis by enhancing angiogenesis. The mechanism associated with this dual behavior of Tγδ17 is not clear. To exploit, Tγδ17 cells for beneficial use requires comprehensive analysis of their biology. Here, we summarize the current understanding on the characteristics, development, and functions of Tγδ17 cells in various pathological scenarios.
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Affiliation(s)
- Rushikesh S Patil
- Chiplunkar Laboratory, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre , Kharghar , India
| | - Sajad A Bhat
- Chiplunkar Laboratory, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre , Kharghar , India
| | - Asif A Dar
- Chiplunkar Laboratory, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre , Kharghar , India
| | - Shubhada V Chiplunkar
- Chiplunkar Laboratory, Advanced Centre for Treatment, Research and Education in Cancer (ACTREC), Tata Memorial Centre , Kharghar , India
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Murdoch JR, Gregory LG, Lloyd CM. γδT cells regulate chronic airway inflammation and development of airway remodelling. Clin Exp Allergy 2014; 44:1386-98. [PMID: 25146585 PMCID: PMC4238847 DOI: 10.1111/cea.12395] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 06/25/2014] [Accepted: 07/10/2014] [Indexed: 01/22/2023]
Abstract
BACKGROUND γδT cells play a crucial immunoregulatory role in the lung, maintaining normal airway tone and preventing hyperresponsiveness to innocuous allergen. During acute inflammatory episodes, γδT cells promote resolution of acute inflammation. However, their contribution to inflammation-associated airway remodelling remains unexplored. Here we investigate the effects of γδT cell blockade on established allergic airway inflammation and development of remodelling. METHODS Sensitised mice were exposed to prolonged ovalbumin challenge or continuous house-dust mite exposure to induce chronic inflammation and remodelling. Functional blocking anti-TCRδ antibody was administered therapeutically, and parameters of airway inflammation and remodelling were examined. RESULTS Therapeutic blockade of γδT cells prevented the typical resolution of acute airway inflammation characterised by elevated eosinophil and Th2 cell numbers. Moreover, the lung displayed exacerbated airway remodelling, typified by excess peribronchiolar collagen deposition. CONCLUSIONS These results demonstrate a unique role for γδT cells in constraining allergen-induced airway remodelling. Manipulating the γδT cell compartment may therefore contribute to strategies to prevent and treat remodelling.
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Affiliation(s)
- J R Murdoch
- Leukocyte Biology Section, Faculty of Medicine, National Heart and Lung Institute, Imperial College LondonLondon, UK
| | - L G Gregory
- Leukocyte Biology Section, Faculty of Medicine, National Heart and Lung Institute, Imperial College LondonLondon, UK
| | - C M Lloyd
- Leukocyte Biology Section, Faculty of Medicine, National Heart and Lung Institute, Imperial College LondonLondon, UK
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Impaired gamma delta T cell-derived IL-17A and inflammasome activation during early respiratory syncytial virus infection in infants. Immunol Cell Biol 2014; 93:126-35. [PMID: 25267484 PMCID: PMC4323740 DOI: 10.1038/icb.2014.79] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Revised: 08/26/2014] [Accepted: 08/26/2014] [Indexed: 12/25/2022]
Abstract
Respiratory syncytial virus (RSV) infection remains a significant global health burden disproportionately affecting infants and leading to long-term lung disease. IL-17A has been shown to be involved in regulating viral and allergic lung inflammatory responses, which has led to a more recent interest in its role in RSV infection. Using a neonatal mouse model of RSV, we demonstrate that neonates fail to develop IL-17A responses compared to adult mice; the main immediate IL-17A contributor in adults were γδ T cells. Antibody neutralization of IL-17A in adult mice caused increased lung inflammation and airway mucus from RSV, while exogenous IL-17A administration to RSV-infected neonates caused decreased inflammation but no change in airway mucus. We also observed a lack of pro-inflammatory cytokine production (IL-1β, IL-6) from infected neonates. Using human cord blood mononuclear cells (CBMCs) and adult peripheral blood mononuclear cells (PBMCs), we compared inflammasome activation by direct retinoic acid-inducible gene I (RIG-I) agonism; CBMCs failed to induce pro-inflammatory cytokines or IL-17A+ γδ T cells compared to PBMCs. Our results indicate that RSV disease severity is in part mediated by a lack of inflammasome activation and IL-17A production in neonates.
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46
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Nakada EM, Shan J, Kinyanjui MW, Fixman ED. Adjuvant-dependent regulation of interleukin-17 expressing γδ T cells and inhibition of Th2 responses in allergic airways disease. Respir Res 2014; 15:90. [PMID: 25123451 PMCID: PMC4151193 DOI: 10.1186/s12931-014-0090-5] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 07/28/2014] [Indexed: 01/07/2023] Open
Abstract
Background Th2 immune responses are linked primarily to mild and moderate asthma, while Th17 cells, Interleukin-17A (IL-17) and neutrophilia have been implicated in more severe forms of disease. How Th2-dependent allergic reactions are influenced by Th17 and IL-17-γδ T cells is poorly understood. In murine models, under some conditions, IL-17 promotes Th2-biased airway inflammatory responses. However, IL-17-γδ T cells have been implicated in the inhibition and resolution of allergic airway inflammation and hyperresponsiveness (AHR). Methods We compared airway responses in Balb/c mice sensitized to OVA with (and without) a Th2-skewing aluminum-based adjuvant and the IL-17 skewing, complete Freund’s adjuvant (CFA). AHR was measured invasively by flexiVent, while serum OVA-IgE was quantified by an enzyme immunoassay. Airway inflammatory and cytokine profiles, and cellular sources of IL-17 were assessed from bronchoalveolar lavage and/or lungs. The role of γδ T cells in these responses was addressed in OVA/CFA sensitized mice using a γδ T cell antibody. Results Following OVA challenge, all mice exhibited mixed eosinophilic/neutrophilic airway inflammatory profiles and elevated serum OVA-IgE. Whereas OVA/alum sensitized mice had moderate inflammation and AHR, OVA/CFA sensitized mice had significantly greater inflammation but lacked AHR. This correlated with a shift in IL-17 production from CD4+ to γδ T cells. Additionally, OVA/CFA sensitized mice, given a γδ TCR stimulatory antibody, showed increased frequencies of IL-17-γδ T cells and diminished airway reactivity and eosinophilia. Conclusions Thus, the conditions of antigen sensitization influence the profile of cells that produce IL-17, the balance of which may then modulate the airway inflammatory responses, including AHR. The possibility for IL-17-γδ T cells to reduce AHR and robust eosinophilic inflammation provides evidence that therapeutic approaches focused on stimulating and increasing airway IL-17-γδ T cells may be an effective alternative in treating steroid resistant, severe asthma. Electronic supplementary material The online version of this article (doi:10.1186/s12931-014-0090-5) contains supplementary material, which is available to authorized users.
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47
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Influence of maternal immunization with allergens on the thymic maturation of lymphocytes with regulatory potential in children: a broad field for further exploration. J Immunol Res 2014; 2014:780386. [PMID: 25009823 PMCID: PMC4070472 DOI: 10.1155/2014/780386] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Accepted: 05/30/2014] [Indexed: 11/26/2022] Open
Abstract
A variety of mechanisms are involved in the regulation of offspring allergy development through maternal immunization with allergens. The passive transfer of antigens, antibodies, and cytokines, the induction of phenotypic alterations in offspring lymphocytes, and the induction of regulatory populations in offspring have been proposed, but these mechanisms remain incompletely understood. It is likely that maternal immunization could affect the intrathymic maturation of offspring TCD4+, TCD8+, γδT, nTreg, iNKT, and B lymphocytes, although there are currently no human maternal immunization protocols for the regulation of allergic responses in children. Some studies have suggested a direct interaction between the maternal immune status and the offspring intrathymic microenvironment; this interaction could influence the maturation of offspring regulatory cells and must be explored for the development of therapies to control allergy development in children.
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48
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Martinu T, Kinnier CV, Sun J, Kelly FL, Nelson ME, Garantziotis S, Foster WM, Palmer SM. Allogeneic splenocyte transfer and lipopolysaccharide inhalations induce differential T cell expansion and lung injury: a novel model of pulmonary graft-versus-host disease. PLoS One 2014; 9:e97951. [PMID: 24844383 PMCID: PMC4028236 DOI: 10.1371/journal.pone.0097951] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Accepted: 04/26/2014] [Indexed: 12/31/2022] Open
Abstract
Background Pulmonary GVHD (pGVHD) is an important complication of hematopoietic cell transplant (HCT) and is thought to be a consequence of the HCT conditioning regimen, allogeneic donor cells, and posttransplant lung exposures. We have previously demonstrated that serial inhaled lipopolysaccharide (LPS) exposures potentiate the development of pGVHD after murine allogeneic HCT. In the current study we hypothesized that allogeneic lymphocytes and environmental exposures alone, in the absence of a pre-conditioning regimen, would cause features of pGVHD and would lead to a different T cell expansion pattern compared to syngeneic cells. Methods Recipient Rag1−/− mice received a transfer of allogeneic (Allo) or syngeneic (Syn) spleen cells. After 1 week of immune reconstitution, mice received 5 daily inhaled LPS exposures and were sacrificed 72 hours after the last LPS exposure. Lung physiology, histology, and protein levels in bronchoalveolar lavage (BAL) were assessed. Lung cells were analyzed by flow cytometry. Results Both Allo and Syn mice that undergo LPS exposures (AlloLPS and SynLPS) have prominent lymphocytic inflammation in their lungs, resembling pGVHD pathology, not seen in LPS-unexposed or non-transplanted controls. Compared to SynLPS, however, AlloLPS have significantly increased levels of BAL protein and enhancement of airway hyperreactivity, consistent with more severe lung injury. This injury in AlloLPS mice is associated with an increase in CD8 T cells and effector CD4 T cells, as well as a decrease in regulatory to effector CD4 T cell ratio. Additionally, cytokine analysis is consistent with a preferential Th1 differentiation and upregulation of pulmonary CCL5 and granzyme B. Conclusions Allogeneic lymphocyte transfer into lymphocyte-deficient mice, followed by LPS exposures, causes features of pGVHD and lung injury in the absence of a pre-conditioning HCT regimen. This lung disease associated with an expansion of allogeneic effector T cells provides a novel model to dissect mechanisms of pGVHD independent of conditioning.
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Affiliation(s)
- Tereza Martinu
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, United States of America
- * E-mail:
| | - Christine V. Kinnier
- Department of General Surgery, Massachusetts General Hospital, Boston, Massachusetts, United States of America
| | - Jesse Sun
- School of medicine, University of North Carolina, Chapel Hill, North Carolina, United States of America
| | - Francine L. Kelly
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, United States of America
| | - Margaret E. Nelson
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, United States of America
| | - Stavros Garantziotis
- Respiratory Biology Branch, National Institutes of Environmental Health Sciences, Research Triangle Park, North Carolina, United States of America
| | - W. Michael Foster
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, United States of America
| | - Scott M. Palmer
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, United States of America
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Blink SE, Caldis MW, Goings GE, Harp CT, Malissen B, Prinz I, Xu D, Miller SD. γδ T cell subsets play opposing roles in regulating experimental autoimmune encephalomyelitis. Cell Immunol 2014; 290:39-51. [PMID: 24860937 DOI: 10.1016/j.cellimm.2014.04.013] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 04/21/2014] [Accepted: 04/28/2014] [Indexed: 12/29/2022]
Abstract
γδ T cells are resident in cerebrospinal fluid and central nervous system (CNS) lesions of multiple sclerosis (MS) patients, but as multifaceted cells exhibiting innate and adaptive characteristics, their function remains unknown. Previous studies in experimental autoimmune encephalomyelitis (EAE) are contradictory and identified these cells as either promoting or suppressing disease pathogenesis. This study examines distinct γδ T cell subsets during EAE and indicates they mediate differential functions in CNS inflammation and demyelination resulting in pathogenesis or protection. We identified two γδ subsets in the CNS, Vγ1(+) and Vγ4(+), with distinct cytokine profiles and tissue specificity. Anti-γδ T cell receptor (TCR) monoclonal antibody (mAb) administration results in activation and downregulation of surface TCR, rendering the cells undetectable, but with opposing effects: anti-Vγ4 treatment exacerbates disease whereas anti-Vγ1 treatment is protective. The Vγ4(+) subset produces multiple pro-inflammatory cytokines including high levels of IL-17, and accounts for 15-20% of the interleukin-17 (IL-17) producing cells in the CNS, but utilize a variant transcriptional program than CD4(+) Th17 cells. In contrast, the Vγ1 subset produces CCR5 ligands, which may promote regulatory T cell differentiation. γδ T cell subsets thus play distinct and opposing roles during EAE, providing an explanation for previous reports and suggesting selective targeting to optimize regulation as a potential therapy for MS.
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Affiliation(s)
- Sarah E Blink
- Department of Microbiology-Immunology and Interdepartmental Immunobiology Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Matthew W Caldis
- Department of Microbiology-Immunology and Interdepartmental Immunobiology Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Gwendolyn E Goings
- Department of Microbiology-Immunology and Interdepartmental Immunobiology Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Christopher T Harp
- Department of Microbiology-Immunology and Interdepartmental Immunobiology Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Bernard Malissen
- Centre d'Immunologie de Marseille-Luminy, Université de la Méditerranée, Case 906, Institut National de la Santé et de la Recherche Médicale, U631, Centre National de la Recherche Scientifique, UMR6102, 13288 Marseille, France
| | - Immo Prinz
- Hannover Medical School, Institute for Immunology, 30625 Hannover, Germany
| | - Dan Xu
- Department of Microbiology-Immunology and Interdepartmental Immunobiology Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Stephen D Miller
- Department of Microbiology-Immunology and Interdepartmental Immunobiology Center, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States.
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Foronjy RF, Dabo AJ, Taggart CC, Weldon S, Geraghty P. Respiratory syncytial virus infections enhance cigarette smoke induced COPD in mice. PLoS One 2014; 9:e90567. [PMID: 24587397 PMCID: PMC3938768 DOI: 10.1371/journal.pone.0090567] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Accepted: 02/03/2014] [Indexed: 12/02/2022] Open
Abstract
Respiratory syncytial viral (RSV) infections are a frequent cause of chronic obstructive pulmonary disease (COPD) exacerbations, which are a major factor in disease progression and mortality. RSV is able to evade antiviral defenses to persist in the lungs of COPD patients. Though RSV infection has been identified in COPD, its contribution to cigarette smoke-induced airway inflammation and lung tissue destruction has not been established. Here we examine the long-term effects of cigarette smoke exposure, in combination with monthly RSV infections, on pulmonary inflammation, protease production and remodeling in mice. RSV exposures enhanced the influx of macrophages, neutrophils and lymphocytes to the airways of cigarette smoke exposed C57BL/6J mice. This infiltration of cells was most pronounced around the vasculature and bronchial airways. By itself, RSV caused significant airspace enlargement and fibrosis in mice and these effects were accentuated with concomitant smoke exposure. Combined stimulation with both smoke and RSV synergistically induced cytokine (IL-1α, IL-17, IFN-γ, KC, IL-13, CXCL9, RANTES, MIF and GM-CSF) and protease (MMP-2, -8, -12, -13, -16 and cathepsins E, S, W and Z) expression. In addition, RSV exposure caused marked apoptosis within the airways of infected mice, which was augmented by cigarette smoke exposure. RSV and smoke exposure also reduced protein phosphatase 2A (PP2A) and protein tyrosine phosphates (PTP1B) expression and activity. This is significant as these phosphatases counter smoke-induced inflammation and protease expression. Together, these findings show for the first time that recurrent RSV infection markedly enhances inflammation, apoptosis and tissue destruction in smoke-exposed mice. Indeed, these results indicate that preventing RSV transmission and infection has the potential to significantly impact on COPD severity and progression.
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Affiliation(s)
- Robert F. Foronjy
- St. Luke’s Roosevelt Hospital, Mount Sinai Health System, Division of Pulmonary and Critical Care Medicine, New York, New York, United States of America
| | - Abdoulaye J. Dabo
- St. Luke’s Roosevelt Hospital, Mount Sinai Health System, Division of Pulmonary and Critical Care Medicine, New York, New York, United States of America
| | - Clifford C. Taggart
- Centre for Infection and Immunity, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, Northern Ireland, United Kingdom
| | - Sinead Weldon
- Centre for Infection and Immunity, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, Northern Ireland, United Kingdom
| | - Patrick Geraghty
- St. Luke’s Roosevelt Hospital, Mount Sinai Health System, Division of Pulmonary and Critical Care Medicine, New York, New York, United States of America
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