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M Yusoff NNF, Ahmad S, Wan Abdul Rahman WF, Mohamud R, C Boer J, Plebanski M, Abdullah B, Chen X, Tengku Din TADAA. CD4+ Foxp3+ Regulatory T-cells in Modulating Inflammatory Microenvironment in Chronic Rhinosinusitis with Nasal Polyps: Progress and Future Prospect. Cytokine 2024; 178:156557. [PMID: 38452440 DOI: 10.1016/j.cyto.2024.156557] [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: 11/15/2023] [Revised: 01/26/2024] [Accepted: 02/20/2024] [Indexed: 03/09/2024]
Abstract
Chronic rhinosinusitis with nasal polyps (CRSwNP) is a subtype of chronic rhinosinusitis (CRS) characterized by the presence of nasal polyps (NP) in the paranasal mucosa. Despite the complex etiology, NP is believed to result from chronic inflammation. The long-term aftermath of the type 2 response is responsible for symptoms seen in NP patients, i.e. rhinorrhea, hyposmia, and nasal obstruction. Immune cellular tolerogenic mechanisms, particularly CD4 + Foxp3 + regulatory T cells (Tregs), are crucial to curtail inflammatory responses. Current evidence suggests impaired Treg activity is the main reason underlying the compromise of self-tolerance, contributing to the onset of CRSwNP. There is compelling evidence that tumor necrosis factor 2 (TNFR2) is preferentially expressed by Tregs, and TNFR2 is able to identify the most potent suppressive subset of Tregs. Tumor necrosis factor (TNF)-TNFR2 interaction plays a decisive role in the activation and expansion of Tregs. This review summarizes current understanding of Tregs biology, focusing on the discussion of the recent advances in the study of TNF-TNFR2 axis in the upregulation of Treg function as a negative feedback mechanism in the control of chronic inflammation. The role of dysregulation of Tregs in the immunopathogenesis of CRSwNP will be analyzed. The future perspective on the harnessing Tregs-mediated self-tolerant mechanism in the management of CRSwNP will be introduced.
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Affiliation(s)
- Nur Najwa Farahin M Yusoff
- Department of Chemical Pathology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Suhana Ahmad
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | | | - Rohimah Mohamud
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Jennifer C Boer
- Translational Immunology and Nanotechnology Unit, School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria 3083, Australia
| | - Magdalena Plebanski
- Translational Immunology and Nanotechnology Unit, School of Health and Biomedical Sciences, RMIT University, Bundoora, Victoria 3083, Australia
| | - Baharudin Abdullah
- Department of Otorhinolaryngology-Head and Neck Surgery, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia.
| | - Xin Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau SAR, China
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A Mohamed R, Fakhr AE, A Baioumy S. Investigating the T regulatory cells and Sirtuin-I serum level in immunotherapy treated house dust mite allergic asthma patients. J Asthma 2024; 61:348-359. [PMID: 37855683 DOI: 10.1080/02770903.2023.2272813] [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: 07/19/2023] [Accepted: 10/15/2023] [Indexed: 10/20/2023]
Abstract
OBJECTIVES House dust mite aeroallergens are predominant triggers of frequent asthma attacks among adults and children. The intensity of asthma and immune reaction necessitates treatment alternatives based on adjusting chosen immunity biomarkers to control the exacerbation of symptoms and establish long-term immune tolerance. In this study, we selected CD4+CD25+Foxp3+ regulatory T cells (Tregs), FOXP3, and Sirtuin-1 as they are known to have a potential role in the immune reaction in different allergic diseases. We investigated their interplay during HDM allergic asthma and its respective immunotherapy. METHODS Eighty-four subjects were divided into 3 groups; healthy controls (CT), HDM asthma patients without immunotherapy (WOIT), and HDM asthma patients treated with subcutaneous immunotherapy for 6 months before recruitment (WIT). They were enrolled according to the pulmonary function, skin prick tests, and HDM-specific IgE. CD4+ CD25+ and CD4+ CD25+ FOXP3+hi T cells Cell percentages, FOXP3 gene expression, and Sirtuin-1 (Sirt1) serum level were analyzed. RESULTS We found that there is a significant difference between WOIT and WIT groups in the CD4+ CD25+ and CD4+ CD25+ FOXP3+hi T cell percentages. While there is no statistically significant difference between WOIT and WIT groups in FOXP3 level. On the controversy, the SIRT1 level in the CT group (4.53 ± 3.880) significantly decreased in the WOIT and WIT groups. CONCLUSION This study revealed that both CD4 CD25 and CD4 CD25 high FOXP3 cell percentages increased in the WIT group and declined in the WOIT group. While, FOXP3 gene expression increased in both groups. In addition, the Sirt1 serum level showed some improvement in WIT group after a serious drop in the WOIT group comparing with the CT group. The modulation of these biomarkers for the remission and control of allergic asthma can be a prognostic outcome of immunotherapy which needs to be confirmed by larger scale studies.
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Affiliation(s)
- Rania A Mohamed
- Department of Biology, Deanship of Educational Services, Qassim University, Unaizah, Qassim, Saudi Arabia
- Department of Parasitology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Ahmed ElSadek Fakhr
- Medical Microbiology and Immunology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
- Laboratory Pathology and Blood Bank, International Medical Center, Jeddah, Egypt
| | - Shereen A Baioumy
- Medical Microbiology and Immunology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
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Klein M, Plante S, Boulay MÈ, Boulet LP, Chakir J. Discrepancy in the suppressive function of regulatory T cells in allergic asthmatic vs. allergic rhinitis subjects upon low-dose allergen challenges. FRONTIERS IN ALLERGY 2023; 4:1296601. [PMID: 38106504 PMCID: PMC10722309 DOI: 10.3389/falgy.2023.1296601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 11/15/2023] [Indexed: 12/19/2023] Open
Abstract
Background Regulatory T cells (Tregs) contribute to the maintenance of immunological tolerance. There is evidence of impaired function of these cells in people with asthma and allergy. In this study, we evaluated and compared the function of Tregs in allergic asthmatic and allergic non-asthmatic patients, both before and after low-dose allergen challenges. Methods Three groups of subjects were recruited for a baseline evaluation: healthy controls without allergy or asthma, allergic asthmatic subjects, and allergic non-asthmatic subjects. All of them were subjected to expiratory flow measurements, sputum induction, and blood sampling. In addition, both groups of allergic subjects underwent low-dose allergen challenges. Tregs were isolated from whole blood using CD4+CD25high and CD127low staining. The suppression function was measured by flow cytometry. The levels of IL-10, IFN-γ, IgG4, IgA, and TGF-β were measured using ELISA, and sputum Foxp3 was evaluated using qRT-PCR. Results The suppressive function of Tregs in healthy controls was significantly higher than in allergic asthmatic or allergic non-asthmatic subjects. Repeated exposure to low doses of allergen increased the suppressor function of Tregs in allergic non-asthmatic subjects but decreased it in allergic asthmatic subjects. Foxp3 gene expression was increased in induced sputum in allergic non-asthmatic subjects, whereas it did not change in asthmatic subjects. Serum IL-10 level was decreased in allergic asthmatic subjects after allergen challenge but not in allergic non-asthmatic subjects. IFN-γ level increased upon allergen challenge in allergic non-asthmatic subjects. IgG4 level was higher in allergic non-asthmatic subjects than in allergic asthmatic subjects. Conclusions Low-dose allergen challenges stimulate the suppressor function of Tregs in non-asthmatic allergic subjects but not in allergic asthmatic subjects.
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Affiliation(s)
| | | | | | | | - Jamila Chakir
- Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec City, QC, Canada
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Abstract
PURPOSE OF REVIEW This review addresses recent progress in our understanding of the role of regulatory T (Treg) cells in enforcing immune tolerance and tissue homeostasis in the lung at steady state and in directing the immune response in asthmatic lung inflammation. RECENT FINDINGS Regulatory T cells regulate the innate and adaptive immune responses at steady state to enforce immune tolerance in lung tissues at steady state and their control of the allergic inflammatory responses induced by allergens. This regulatory function can break down in the context of chronic asthmatic airway inflammation such that the lung tissue Treg cells become skewed towards a pathogenic phenotype that aggravates and perpetuates disease. Subversion of lung tissue Treg cell function involves their upregulation of Notch4 expression, which in turn acts to amplify T helper type 2 and type 17 and innate lymphoid cell type 2 responses in the airways. SUMMARY A dual role for Treg cells has emerged both as immune regulators but also a potential disease effectors in asthma, with implications for disease therapy.
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Affiliation(s)
- Hani Harb
- Institute for Medical Microbiology and Virology, University Hospital Dresden, Technical University Dresden, Germany
| | - Talal A Chatila
- Division of Immunology, Boston Children’s Hospital, Department of Pediatrics, Harvard Medical School, Boston, USA
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Su Q, Ren N, Feng M, Zeng X, Dong Y, Xian M, Shi X, Luo T, Liu G, Li J. Specific immunoglobulin G4 correlates with Th2 cytokine reduction in patients with allergic asthma treated by Dermatophagoides pteronyssinus subcutaneous immunotherapy. World Allergy Organ J 2023; 16:100715. [PMID: 36820309 PMCID: PMC9937843 DOI: 10.1016/j.waojou.2022.100715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 10/12/2022] [Accepted: 10/20/2022] [Indexed: 01/27/2023] Open
Abstract
Background The modulations of lymphocyte subsets and cytokine production due to subcutaneous allergen immunotherapy (SCIT) are not fully clarified. Objective We investigated the changes in T-lymphocyte subsets and serum Dermatophagoides pteronyssinus-specific immunoglobulin G4 (Der-p sIgG4), as well as cytokine production during Der-p SCIT, in patients with allergic asthma. Methods This study involved 20 patients with allergic asthma who were receiving 156-week Der-p SCIT and 20 patients without SCIT (non-SCIT). We measured symptom and medication scores (SMS), serum Der-p sIgG4 levels, CD4+CD25+Foxp3+ T regulatory (Treg), CD4+IL-4-IFN-γ+ T-helper (Th) 1, and CD4+IL-4+IFN-γ- Th2 lymphocyte percentages in peripheral blood mononuclear cells (PBMCs) with/without Der-p extract stimulation at weeks 0, 4, 12, 16, 52, 104, and 156. Cytokine release inhibition assays were performed by incubation with serum from SCIT and non-SCIT patients, Der-p allergen, and PBMCs. Levels of interleukin (IL)-4, IL-5, IL-10, IL-13, IL-17, interferon (IFN)-γ, tumor necrosis factor (TNF)-α, and transforming growth factor (TGF)-β1 were evaluated in supernatant. Results We found that SCIT patients had significantly lower SMS after week 52. Der-p sIgG4 levels in SCIT patients significantly increased at week 16 compared with non-SCIT subjects. CD4+IL-4+IFN-γ- Th2% in SCIT patients showed a significant decrease from weeks 104-156 compared with week 0, while no change was observed in CD4+CD25+Foxp3+ Treg and CD4+IL-4-IFN-γ+ Th1 percentages. IL-5, IL-13, IL-4, IL-17, and TNF-α levels in supernatant of PBMCs cultured with serum of SCIT patients after 16 weeks showed significant lower levels compared with non-SCIT patients, and showed significant reverse associations with Der-p sIgG4 levels. Conclusion SCIT induced Dep-p sIgG4 may be involved in downregulating Th2 cytokine production in Der-p allergic asthma patients.
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Affiliation(s)
- Qiujuan Su
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Nina Ren
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China,Department of Respiratory Medicine, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Mulin Feng
- Yangjiang Key Laboratory of Respiratory Disease, Department of Respiratory Medicine, People's Hospital of Yangjiang, Yangjiang, China
| | - Xueni Zeng
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yan Dong
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Mo Xian
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xu Shi
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Tian Luo
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Gang Liu
- Clinical Research Center, Affiliated Hospital of Guangdong Medical University, Zhanjiang, China
| | - Jing Li
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China,Yangjiang Key Laboratory of Respiratory Disease, Department of Respiratory Medicine, People's Hospital of Yangjiang, Yangjiang, China,Corresponding author. Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China.
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Bryant N, Muehling LM. T-cell responses in asthma exacerbations. Ann Allergy Asthma Immunol 2022; 129:709-718. [PMID: 35918022 PMCID: PMC9987567 DOI: 10.1016/j.anai.2022.07.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 07/22/2022] [Accepted: 07/22/2022] [Indexed: 02/05/2023]
Abstract
OBJECTIVE Asthma is a chronic lung disease comprising multiple endotypes and characterized by periodic exacerbations. A diverse array of T cells has been found to contribute to all endotypes of asthma in pathogenic and regulatory roles. Here, we review the contributions of CD4+, CD8+, and unconventional T cells in allergic and nonallergic asthma. DATA SOURCES Review of published literature pertaining to conventional and unconventional T-cell types in asthma. STUDY SELECTIONS Recent peer-reviewed articles pertaining to T cells in asthma, with additional peer-reviewed studies for context. RESULTS Much research in asthma has focused on the roles of CD4+ TH cells. Roles for TH2 cells in promoting allergic asthma pathogenesis have been well-described, and the recent description of pathogenic TH2A cells provides additional insight into these responses. Other TH types, notably TH1 and TH17, have been linked to neutrophilic and steroid-resistant asthma phenotypes. Beyond CD4+ T cells, CD8+ Tc2 cells are also strongly associated with allergic asthma. An emerging area for study is unconventional T-cell types, including γδT, invariant natural killer T, and mucosal-associated invariant T cells. Although data in asthma remain limited for these cells, their ability to bridge innate and adaptive responses likely makes them key players in asthma. A number of asthma therapies target T-cell responses, and, although data are limited, they seem to modulate T-cell populations. CONCLUSION Given the diversity and heterogeneity of asthma and T-cell responses, there remain many rich avenues for research to better understand the pathogenesis of asthma. Despite the breadth of T cells in asthma, approved therapeutics remain limited to TH2 networks.
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Affiliation(s)
- Naomi Bryant
- Department of Medicine, University of Virginia School of Medicine, Charlottesville, Virginia
| | - Lyndsey M Muehling
- Department of Medicine, University of Virginia School of Medicine, Charlottesville, Virginia.
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Zhang J, Zou Y, Chen L, Xu Q, Wang Y, Xie M, Liu X, Zhao J, Wang CY. Regulatory T Cells, a Viable Target Against Airway Allergic Inflammatory Responses in Asthma. Front Immunol 2022; 13:902318. [PMID: 35757774 PMCID: PMC9226301 DOI: 10.3389/fimmu.2022.902318] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/13/2022] [Indexed: 11/17/2022] Open
Abstract
Asthma is a multifactorial disorder characterized by the airway chronic inflammation, hyper-responsiveness (AHR), remodeling, and reversible obstruction. Although asthma is known as a heterogeneous group of diseases with various clinical manifestations, recent studies suggest that more than half of the clinical cases are ‘‘T helper type 2 (Th2)-high’’ type, whose pathogenesis is driven by Th2 responses to an inhaled allergen from the environmental exposures. The intensity and duration of inflammatory responses to inhaled allergens largely depend on the balance between effector and regulatory cells, but many questions regarding the mechanisms by which the relative magnitudes of these opposing forces are remained unanswered. Regulatory T cells (Tregs), which comprise diverse subtypes with suppressive function, have long been attracted extensive attention owing to their capability to limit the development and progression of allergic diseases. In this review we seek to update the recent advances that support an essential role for Tregs in the induction of allergen tolerance and attenuation of asthma progression once allergic airway inflammation established. We also discuss the current concepts about Treg induction and Treg-expressed mediators relevant to controlling asthma, and the therapies designed based on these novel insights against asthma in clinical settings.
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Affiliation(s)
- Jing Zhang
- Department of Respiratory and Critical Care Medicine, The Center for Biomedical Research, NHC Key Laboratory of Respiratory Disease, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yuan Zou
- Department of Respiratory and Critical Care Medicine, The Center for Biomedical Research, NHC Key Laboratory of Respiratory Disease, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Longmin Chen
- Department of Rheumatology and Immunology, The Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Qianqian Xu
- Department of Respiratory and Critical Care Medicine, The Center for Biomedical Research, NHC Key Laboratory of Respiratory Disease, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yi Wang
- Department of Respiratory and Critical Care Medicine, The Center for Biomedical Research, NHC Key Laboratory of Respiratory Disease, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Min Xie
- Department of Respiratory and Critical Care Medicine, The Center for Biomedical Research, NHC Key Laboratory of Respiratory Disease, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Respiratory and Critical Care Medicine, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
| | - Xiansheng Liu
- Department of Respiratory and Critical Care Medicine, The Center for Biomedical Research, NHC Key Laboratory of Respiratory Disease, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department of Respiratory and Critical Care Medicine, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, China
| | - Jianping Zhao
- Department of Respiratory and Critical Care Medicine, The Center for Biomedical Research, NHC Key Laboratory of Respiratory Disease, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Cong-Yi Wang
- Department of Respiratory and Critical Care Medicine, The Center for Biomedical Research, NHC Key Laboratory of Respiratory Disease, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Nozari P, Mokhtari P, Nemati M, Zainodini N, Taghipour Z, Asadi F, Ayoobi F, Jafarzadeh A. Investigation of the effect of IFN-γ/TNF-α-treated mesenchymal stem cells on Th9- and Treg cell-related parameters in a mouse model of ovalbumin-induced allergic asthma. Immunopharmacol Immunotoxicol 2022; 44:773-785. [PMID: 35620857 DOI: 10.1080/08923973.2022.2082977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Th9- and regulatory T (Treg) cells exert pro- and anti-allergic activity, respectively. Mesenchymal stem cell (MSC)-related immunomodulatory impacts can be enhanced by inflammatory cytokines. Here, the modulatory effects of IFN-γ/TNF-α-induced MSCs on Th9- and Treg cell-related parameters were investigated using an asthma model. METHODS Allergic asthma was induced in BALB/c mice using sensitized and challenging with ovalbumin (OVA). The asthmatic groups were treated intraperitoneally with PBS, MSCs, IFN-γ-induced MSCs, TNF-α-induced MSCs and "IFN-γ + TNF-α"-induced MSCs before the challenge phase. The mice were sacrificed 24 hours after challenge. The serum IL-9 and IL-35 levels, as well as gene expression of IL-9, PU.1, IL-35-EBI3 and FOXP3 in the lung tissues were assessed using ELISA and real time-PCR, respectively. RESULTS The differences of Th9 and Treg-related parameters were not significant between untreated asthmatic mice and those treated with non-induced MSCs. In comparison with untreated asthmatic group, treatment with IFN-γ-induced MSCs significantly reduced serum IL-9 levels, reduced lung expression of IL-9 and PU.1, while increasing serum IL-35 levels as well as lung expression of FOXP3; treatment with TNF-α-induced MSCs significantly reduced serum IL-9 levels as well as lung expression of IL-9, and treatment with "IFN-γ + TNF-α"-induced MSCs significantly modulated all investigated Th9 and Treg-related parameters. In comparison to mice treated with non-induced MSCs, serum IL-9 levels were remarkably decreased in mice treated with IFN-γ-induced and "IFN-γ + TNF-α"-induced MSCs. CONCLUSIONS IFN-γ-and "IFN-γ + TNF-α" treated MSCs exerted almost comparable impacts, but were more efficient than TNF-α-exposed MSCs. Thus, IFN-γ alone can be sufficient to promote immunomodulatory effects of MSCs.
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Affiliation(s)
- Parvin Nozari
- Department of Immunology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Pejman Mokhtari
- Department of Immunology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Maryam Nemati
- Molecular Medicine Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.,Department of Haematology and Laboratory Sciences, School of Para-Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Nahid Zainodini
- Immunology of Infectious Diseases Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Zahra Taghipour
- Department of Histology, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Fatemeh Asadi
- Molecular Medicine Research Center, Research Institute of Basic Medical Sciences, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Fatemeh Ayoobi
- Non-Communicable Diseases Research Center, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
| | - Abdollah Jafarzadeh
- Department of Immunology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran.,Department of Immunology, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran
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Mertowska P, Mertowski S, Podgajna M, Grywalska E. The Importance of the Transcription Factor Foxp3 in the Development of Primary Immunodeficiencies. J Clin Med 2022; 11:jcm11040947. [PMID: 35207219 PMCID: PMC8874698 DOI: 10.3390/jcm11040947] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/29/2022] [Accepted: 02/09/2022] [Indexed: 02/05/2023] Open
Abstract
Transcription factors are an extremely important group of proteins that are responsible for the process of selective activation or deactivation of other cellular proteins, usually at the last stage of signal transmission in the cell. An important family of transcription factors that regulate the body’s response is the FOX family which plays an important role in regulating the expression of genes involved in cell growth, proliferation, and differentiation. The members of this family include the intracellular protein Foxp3, which regulates the process of differentiation of the T lymphocyte subpopulation, and more precisely, is responsible for the development of regulatory T lymphocytes. This protein influences several cellular processes both directly and indirectly. In the process of cytokine production regulation, the Foxp3 protein interacts with numerous proteins and transcription factors such as NFAT, nuclear factor kappa B, and Runx1/AML1 and is involved in the process of histone acetylation in condensed chromatin. Malfunctioning of transcription factor Foxp3 caused by the mutagenesis process affects the development of disorders of the immune response and autoimmune diseases. This applies to the impairment or inability of the immune system to fight infections due to a disruption of the mechanisms supporting immune homeostasis which in turn leads to the development of a special group of disorders called primary immunodeficiencies (PID). The aim of this review is to provide information on the role of the Foxp3 protein in the human body and its involvement in the development of two types of primary immunodeficiency diseases: IPEX (Immunodysregulation Polyendocrinopathy Enteropathy X-linked syndrome) and CVID (Common Variable Immunodeficiency).
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Ahmad S, Hatmal MM, Lambuk L, Al-Hatamleh MAI, Alshaer W, Mohamud R. The role of TNFR2 + Tregs in COVID-19: An overview and a potential therapeutic strategy. Life Sci 2021; 286:120063. [PMID: 34673116 PMCID: PMC8523334 DOI: 10.1016/j.lfs.2021.120063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 10/12/2021] [Accepted: 10/13/2021] [Indexed: 02/08/2023]
Abstract
COVID-19 is a multi-faceted disease ranging from asymptomatic to severely ill condition that primarily affects the lungs and could advance to other organs as well. It's causing factor, SARS-CoV-2 is recognized to develop robust cell-mediated immunity that responsible to either control or exaggerate the infection. As an important cell subset that control immune responses and are significantly dysregulated in COVID-19, Tregs is proposed to be considered for COVID-19 management. Among its hallmark, TNFR2 is recently recognized to play important role in the function and survival of Tregs. This review gathers available TNFR2 agonists to directly target Tregs as a potential approach to overcome immune dysregulation that affect the severity in COVID-19. Furthermore, this review performs a rigid body docking of TNF-TNFR2 interaction and such interaction with TNFR2 agonist to predict the optimal targeting approach.
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Affiliation(s)
- Suhana Ahmad
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
| | - Ma'mon M Hatmal
- Department of Medical Laboratory Sciences, Faculty of Applied Health Sciences, The Hashemite University, P.O. Box 330127, Zarqa 13133, Jordan
| | - Lidawani Lambuk
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
| | - Mohammad A I Al-Hatamleh
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia
| | - Walhan Alshaer
- Cell Therapy Center (CTC), The University of Jordan, Amman 11942, Jordan
| | - Rohimah Mohamud
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia.
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11
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Surface Phenotype Changes and Increased Response to Oxidative Stress in CD4 +CD25 high T Cells. Biomedicines 2021; 9:biomedicines9060616. [PMID: 34072455 PMCID: PMC8229188 DOI: 10.3390/biomedicines9060616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/25/2021] [Accepted: 05/25/2021] [Indexed: 11/16/2022] Open
Abstract
Conversion of CD4+CD25+FOXP3+ T regulatory cells (Tregs) from the immature (CD45RA+) to mature (CD45RO+) phenotype has been shown during development and allergic reactions. The relative frequencies of these Treg phenotypes and their responses to oxidative stress during development and allergic inflammation were analysed in samples from paediatric and adult subjects. The FOXP3lowCD45RA+ population was dominant in early childhood, while the percentage of FOXP3highCD45RO+ cells began increasing in the first year of life. These phenotypic changes were observed in subjects with and without asthma. Further, there was a significant increase in phosphorylated ERK1/2 (pERK1/2) protein in hydrogen peroxide (H2O2)-treated CD4+CD25high cells in adults with asthma compared with those without asthma. Increased pERK1/2 levels corresponded with increased Ca2+ response to T cell receptor stimulation. mRNA expression of peroxiredoxins declined in Tregs from adults with asthma. Finally, CD4+CD25high cells from paediatric subjects were more sensitive to oxidative stress than those from adults in vitro. The differential Treg sensitivity to oxidative stress observed in children and adults was likely dependent on phenotypic CD45 isoform switching. Increased sensitivity of Treg cells from adults with asthma to H2O2 resulted from a reduction of peroxiredoxin-2, -3, -4 and increased pERK1/2 via impaired Ca2+ response in these cells.
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Azid NA, Ahmad S, Boer JC, Al-Hatamleh MAI, Mohammad N, Mohd Ashari NS, Tan HT, Chen X, Plebanski M, Mohamud R. A profile of TNFR2 + regulatory T cells and CD103 + dendritic cells in the peripheral blood of patients with asthma. Hum Immunol 2020; 81:634-643. [PMID: 32771274 DOI: 10.1016/j.humimm.2020.07.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 07/15/2020] [Accepted: 07/15/2020] [Indexed: 02/07/2023]
Abstract
The interaction of tolerogenic CD103+ dendritic cells (DCs) with regulatory T (Tregs) cells modulates immune responses by inducing immune tolerance. Hence, we determined the proportion of these cells in the peripheral blood mononuclear cells (PBMC) of asthmatic patients. We observed lower trends of CD11b-CD103+ DCs and CD86 within CD11b-CD103+ DCs, while increased levels of Foxp3 expressing CD25+/-TNFR2+ cells in asthmatics. There was a positive correlation in the expression of Foxp3 within CD3+CD4+CD25+TNFR2+ Tregs and CD11b-CD103+ as well as the expression of CD86 within HLA-DR+CD11c+CD11b-CD103+ DCs. In conclusion, we suggest that the increased levels of Tregs in blood could continuously suppress the T helper 2 (Th2) cells activation in the circulation which is also supported by the increase of anti-inflammatory cytokines IL-10 and TNF. Overall, functional immunoregulation of the regulatory cells, particularly Tregs, exhibit immune suppression and induce immune tolerance linked with the immune activation by the antigen presenting cells (APC).
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Affiliation(s)
- Nor Azrini Azid
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Suhana Ahmad
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Jennifer C Boer
- Translational Immunology and Nanotechnology Unit, School of Health and Biomedical Sciences, RMIT University, Bundoora 3083, Australia.
| | - Mohammad A I Al-Hatamleh
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Nurashikin Mohammad
- Department of Internal Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia; Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Kelantan, Malaysia.
| | - Noor Suryani Mohd Ashari
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia; Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Kelantan, Malaysia.
| | - Hern Tze Tan
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia; Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Xin Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, China.
| | - Magdalena Plebanski
- Translational Immunology and Nanotechnology Unit, School of Health and Biomedical Sciences, RMIT University, Bundoora 3083, Australia.
| | - Rohimah Mohamud
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia; Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Kelantan, Malaysia.
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13
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Lynch JP, Werder RB, Curren BF, Sikder MAA, Ullah A, Sebina I, Rashid RB, Zhang V, Upham JW, Hill GR, Steptoe RJ, Phipps S. Long-lived regulatory T cells generated during severe bronchiolitis in infancy influence later progression to asthma. Mucosal Immunol 2020; 13:652-664. [PMID: 32066837 DOI: 10.1038/s41385-020-0268-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 01/22/2020] [Accepted: 01/26/2020] [Indexed: 02/04/2023]
Abstract
The type-2 inflammatory response that promotes asthma pathophysiology occurs in the absence of sufficient immunoregulation. Impaired regulatory T cell (Treg) function also predisposes to severe viral bronchiolitis in infancy, a major risk factor for asthma. Hence, we hypothesized that long-lived, aberrantly programmed Tregs causally link viral bronchiolitis with later asthma. Here we found that transient plasmacytoid dendritic cell (pDC) depletion during viral infection in early-life, which causes the expansion of aberrant Tregs, predisposes to allergen-induced or virus-induced asthma in later-life, and is associated with altered airway epithelial cell (AEC) responses and the expansion of impaired, long-lived Tregs. Critically, the adoptive transfer of aberrant Tregs (unlike healthy Tregs) to asthma-susceptible mice failed to prevent the development of viral-induced or allergen-induced asthma. Lack of protection was associated with increased airway epithelial cytoplasmic-HMGB1 (high-mobility group box 1), a pro-type-2 inflammatory alarmin, and granulocytic inflammation. Aberrant Tregs expressed lower levels of CD39, an ectonucleotidase that hydrolyzes extracellular ATP, a known inducer of alarmin release. Using cultured mouse AECs, we identify that healthy Tregs suppress allergen-induced HMGB1 translocation whereas this ability is markedly impaired in aberrant Tregs. Thus, defective Treg programming in infancy has durable consequences that underlie the association between bronchiolitis and subsequent asthma.
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Affiliation(s)
- Jason P Lynch
- Respiratory Immunology, QIMR Berghofer Medical Research Institute, Herston, Queensland, 4006, Australia.,School of Biomedical Sciences, University of Queensland, Queensland, 4072, Australia
| | - Rhiannon B Werder
- Respiratory Immunology, QIMR Berghofer Medical Research Institute, Herston, Queensland, 4006, Australia.,School of Biomedical Sciences, University of Queensland, Queensland, 4072, Australia
| | - Bodie F Curren
- Respiratory Immunology, QIMR Berghofer Medical Research Institute, Herston, Queensland, 4006, Australia.,School of Biomedical Sciences, University of Queensland, Queensland, 4072, Australia
| | - Md Al Amin Sikder
- Respiratory Immunology, QIMR Berghofer Medical Research Institute, Herston, Queensland, 4006, Australia.,School of Biomedical Sciences, University of Queensland, Queensland, 4072, Australia
| | - Ashik Ullah
- Respiratory Immunology, QIMR Berghofer Medical Research Institute, Herston, Queensland, 4006, Australia
| | - Ismail Sebina
- Respiratory Immunology, QIMR Berghofer Medical Research Institute, Herston, Queensland, 4006, Australia
| | - Ridwan B Rashid
- Respiratory Immunology, QIMR Berghofer Medical Research Institute, Herston, Queensland, 4006, Australia.,School of Biomedical Sciences, University of Queensland, Queensland, 4072, Australia
| | - Vivian Zhang
- Respiratory Immunology, QIMR Berghofer Medical Research Institute, Herston, Queensland, 4006, Australia.,School of Biomedical Sciences, University of Queensland, Queensland, 4072, Australia
| | - John W Upham
- UQ Diamantina Institute, The University of Queensland, Queensland, 4102, Australia.,Australian Infectious Diseases Research Centre, The University of Queensland, Queensland, 4072, Australia
| | - Geoff R Hill
- Fred Hutchinson Cancer Research Center, Seattle, WA, 1100, USA
| | - Raymond J Steptoe
- UQ Diamantina Institute, The University of Queensland, Queensland, 4102, Australia
| | - Simon Phipps
- Respiratory Immunology, QIMR Berghofer Medical Research Institute, Herston, Queensland, 4006, Australia. .,Australian Infectious Diseases Research Centre, The University of Queensland, Queensland, 4072, Australia.
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14
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Regulatory T Cells in Respiratory Health and Diseases. Pulm Med 2019; 2019:1907807. [PMID: 31827925 PMCID: PMC6886321 DOI: 10.1155/2019/1907807] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 09/05/2019] [Accepted: 09/10/2019] [Indexed: 02/06/2023] Open
Abstract
Respiratory diseases compromise the health of millions of people all over the world and are strongly linked to the immune dysfunction. CD4+FOXP3+ T regulatory cells, also known as Tregs, have a central role maintaining tissue homeostasis during immune responses. Their activity and clinical impact have been widely studied in different clinical conditions including autoimmune diseases, inflammatory conditions, and cancer, amongst others. Tregs express transcription factor forkhead box P3 (FOXP3), which allows regulation of the immune response through anti-inflammatory cytokines such as IL-10 or transforming growth factor beta (TGF-β) and direct cell-to-cell interaction. Maintenance of immune tolerance is achieved via modulation of effector CD4+ T helper 1, 2 or 17 (Th1, Th2, Th17) cells by Tregs. This review highlights the recent progress in the understanding of Tregs in different disorders of the respiratory system.
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15
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Pandey R, Prakash V. Expression of FOXP3 and GATA3 Transcription Factors Among Bronchial Asthmatics in Northern Population. Indian J Clin Biochem 2019; 36:88-93. [PMID: 33505132 DOI: 10.1007/s12291-019-00853-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 10/09/2019] [Indexed: 12/11/2022]
Abstract
Asthma is a common chronic airways inflammatory disorder in which the expression of genes for the transcription factors FoxP3 and GATA3 plays crucial roles in activation of specific T cells population and pathogenesis of asthma. Recent data have shown that Hb, Eosinophils, total leucocytes count (TLC), absolute eosinophil count (AEC), and IgE, may be involved in adversely influencing the status of several chronic diseases including asthma. In this communication, we have carried out a case control study in order to evaluate the expression of FoxP3, GATA-3 genes in 80 bronchial asthmatic patients using real time polymerase chain reaction technique, and also to analyse and compare the values of Hb, TLC, AEC, and IgE in asthmatics with 80 control subjects. The numbers of eosinophils and total leucocytes and the level of serum IgE were higher in asthmatics compared to healthy subjects. The relative expressions of FoxP3 and GATA-3 genes in control versus asthmatics were 12.42 ± 1.413 versus 5.79 ± 0.260 (P value = < 0.0001) and 4.731 ± 0.350 versus 8.415 ± 0.359 (P value = 0.0043), respectively. The asthmatics displayed comparatively decreased level of FoxP3 expression and higher level of GATA-3 expression. There was a positive and significant correlation between the level of IgE and expression of GATA-3 in asthmatics. Relatively lower level of FoxP3 mRNA expression in bronchial asthmatics may be linked with the sustained inflammatory process and decreased immune tolerance by asthmatics. A positive correlation of GATA-3 expression with the increase in IgE level shows it to be a characteristic of asthma. However, extensive work is required to delineate the targets involved in the pathogenesis of asthma for adequate therapeutic interventions.
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Affiliation(s)
- Rashmi Pandey
- Departments of Pulmonary and Critical Care Medicine, KGMU, Lucknow, India
| | - Ved Prakash
- Departments of Pulmonary and Critical Care Medicine, KGMU, Lucknow, India
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16
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Kalicki B, Wawrzyniak A, Lipińska-Opałka A, Lewicki S, Zdanowski R. Influence of Vitamin D and Cotinine on T-Regulatory Cells and Asthma Severity in Children. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1021:27-36. [PMID: 28730377 DOI: 10.1007/5584_2017_27] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Asthma is a common chronic respiratory diseases in children. Understanding the immune mechanisms of epigenetic factors may contribute to a better control of asthma. This study seeks to determine the effects of serum vitamin D and urine cotinine on asthma severity and on T regulatory cells (Tregs) and other immune-related factors such as CD3, CD4, CD8, CD19, CD16/56, and anti-CD3 HLA-DR3. The study involved 34 children with asthma. Disease severity was assessed with the Asthma Control Test, spirometry, and the fractional exhaled nitric oxide (FeNO). The control group consisted of 18 healthy children. We found a significantly lower proportion of Tregs in the serum of asthmatic children compared with the control group (p < 0.002). There were no significant differences in the other immunological factors investigated. Nor was there any appreciable association between vitamin D or cotinine and the course of asthma, FeNO, Tregs, and the other immune factors. However, the percentage of Tregs was positively associated with the level of FeNO (p < 0.02). In conclusion, the study shows a role of T regulatory cells in the pathogenesis of asthma in children, but fails to show any influence of serum vitamin D or urine cotinine on disease course.
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Affiliation(s)
- Bolesław Kalicki
- Department of Pediatrics, Nephrology and Allergology, Military Institute of Medicine, 128 Szaserow Street, 04-141, Warsaw, Poland
| | - Agata Wawrzyniak
- Department of Pediatrics, Nephrology and Allergology, Military Institute of Medicine, 128 Szaserow Street, 04-141, Warsaw, Poland.
| | - Agnieszka Lipińska-Opałka
- Department of Pediatrics, Nephrology and Allergology, Military Institute of Medicine, 128 Szaserow Street, 04-141, Warsaw, Poland
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17
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Zhang YL, Shin HJ, Lee JH, Lee J. Antiallergic Effect of Hizikia fusiformis in an Ovalbumin-Induced Allergic Rhinitis Mouse Model. Clin Exp Otorhinolaryngol 2019; 12:196-205. [PMID: 30942049 PMCID: PMC6453782 DOI: 10.21053/ceo.2019.00094] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 02/14/2019] [Indexed: 12/21/2022] Open
Abstract
Objectives The extract of Hizikia fusiformis is known to exhibit anticancer, antiatopic and antioxidant activities. We aimed to investigate the extract of H. fusiformis on allergic rhinitis inflammation in a mouse model. Methods The 4-week-old BALB/c mice were randomly assigned into four groups: group A, control group (n=9); group B, allergic rhinitis group (n=10); group C (n=10) received 300 mg/kg of H. fusiformis during nasal challenging period; group D (n=10) received 600 mg/kg of H. fusiformis during general sensitization period and 300 mg/kg of H. fusiformis during nasal challenging period. Allergic inflammation was made with ovalbumin (OVA) and alum then challenged intranasally with OVA. H. fusiformis was intraperitoneally administered 3 hours before the OVA administration. Allergic symptom score and the levels of immunoglobulin G1 (IgG1), IgG2a, OVA-specific IgE antibodies, levels of cytokines in the nasal mucosa and in spleen cell culture supernatant, such as tumor necrosis factor alpha (TNF-α), interleukin 4 (IL-4), IL-5, IL-13, and IL-10 were assessed. The percentage of regulatory T cell was analyzed by flow cytometry. Eosinophilic infiltration and goblet cell hyperplasia were also evaluated. Results H. fusiformis administered groups C and D showed significant inhibitory effects on nasal symptoms, IL-13 mRNA expression and eosinophil infiltration/goblet cell hyperplasia in the nasal tissue; OVA-specific IgE production in serum (P<0.05). In group D, H. fusiformis treatment downregulated IL-4, IL-5, IL-13, TNF-α, and IL-10 cytokine expression in splenocyte culture as well as significantly decreased IgG2a, IgG1 levels in serum compared with group B (P<0.05). However, the expressions of IL-5, interferon-γ and forkhead box P3 mRNA did not change in groups C and D. Conclusion H. fusiformis could induce antiallergic inflammation by suppressing the T-helper type 2 cytokine production (IL-13) locally and systemically, OVA-specific IgE formation, goblet cell hyperplasia, and eosinophilic infiltration in a mouse model of allergic rhinitis. Thus, H. fusiformis could be considered as a potential therapeutic agent in treating allergic rhinitis.
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Affiliation(s)
- Yu-Lian Zhang
- Center of Morphological Experiment, Medical College of Yanbian University, Yanji, China
| | - Hyun-Jae Shin
- Department of Biochemical and Polymer Engineering, Chosun University, Gwangju, Korea
| | - Jung-Heon Lee
- Department of Biochemical and Polymer Engineering, Chosun University, Gwangju, Korea
| | - Jieun Lee
- Department of Otorhinolaryngology-Head and Neck Surgery, Chosun University College of Medicine, Gwangju, Korea
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18
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Nguyen QT, Jang E, Le HT, Kim S, Kim D, Dvorina N, Aronica MA, Baldwin WM, Asosingh K, Comhair S, Min B. IL-27 targets Foxp3+ Tregs to mediate antiinflammatory functions during experimental allergic airway inflammation. JCI Insight 2019; 4:123216. [PMID: 30674714 DOI: 10.1172/jci.insight.123216] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Accepted: 12/05/2018] [Indexed: 12/17/2022] Open
Abstract
Foxp3+ CD4 Tregs are central regulators of inflammation, including allergic inflammation in the lung. There is increasing evidence that inflammatory factors undermine adequate Treg functions and homeostasis, resulting in prolonged and exacerbated inflammation. Therefore, identifying the factors is of the utmost important. IL-27 is an antiinflammatory cytokine implicated in immune regulation and tolerance. However, the cellular mechanisms underlying IL-27-mediated immune regulation in vivo remain largely unknown. Utilizing a cockroach antigen-induced allergic inflammation model in mice, we sought to test the roles of Tregs during IL-27-mediated regulation of allergic inflammation. Intranasally delivered IL-27 significantly reduced the development of airway inflammation. Unexpectedly, the IL-27-induced reduction occurred only in the presence of Tregs. Il27ra-/- and Treg-specific Il27ra-/- mice developed severe airway inflammation, and IL-27 treatment had little impact on diminishing the inflammatory responses. IL-27-induced treatment was restored following transfer of WT Tregs but not of Tregs deficient in Lag3, a molecule induced by IL-27 in Tregs. Finally, Tregs from asthmatic patients exhibited blunted STAT1 phosphorylation following IL-27 stimulation. Taken together, our results uncover that Tregs are the primary target cells of IL-27 in vivo to mediate its antiinflammatory functions, suggesting that altered IL-27 responsiveness in Tregs may underlie inadequate Treg functions and perpetuation of inflammation.
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19
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Ahmad S, Azid NA, Boer JC, Lim J, Chen X, Plebanski M, Mohamud R. The Key Role of TNF-TNFR2 Interactions in the Modulation of Allergic Inflammation: A Review. Front Immunol 2018; 9:2572. [PMID: 30473698 PMCID: PMC6238659 DOI: 10.3389/fimmu.2018.02572] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 10/18/2018] [Indexed: 12/14/2022] Open
Abstract
Tumor necrosis factor-alpha (TNF) is a pleiotropic cytokine, which is thought to play a major role in the pathogenesis of inflammatory diseases, including allergy. TNF is produced at the early stage of allergen sensitization, and then continues to promote the inflammation cascade in the effector phase of allergic reactions. Consequently, anti-TNF treatment has been proposed as a potential therapeutic option. However, recent studies reveal anti-intuitive effects of TNF in the activation and proliferative expansion of immunosuppressive Tregs, tolerogenic DCs and MDSCs. This immunosuppressive effect of TNF is mediated by TNFR2, which is preferentially expressed by immunosuppressive cells. These findings redefine the role of TNF in allergic reaction, and suggest that targeting TNF-TNFR2 interaction itself may represent a novel strategy in the treatment of allergy.
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Affiliation(s)
- Suhana Ahmad
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Nor Azrini Azid
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Jennifer C Boer
- Department of Immunology and Pathology, Monash University, Melbourne, VIC, Australia
| | - JitKang Lim
- School of Chemical Engineering, Universiti Sains Malaysia, Pulau Pinang, Malaysia
| | - Xin Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Taipa, China
| | | | - Rohimah Mohamud
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kelantan, Malaysia.,Hospital Universiti Sains Malaysia, Universiti Sains Malaysia, Kelantan, Malaysia
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20
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Antigen-specific regulatory T-cell responses against aeroantigens and their role in allergy. Mucosal Immunol 2018; 11:1537-1550. [PMID: 29858582 DOI: 10.1038/s41385-018-0038-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 04/11/2018] [Accepted: 04/14/2018] [Indexed: 02/04/2023]
Abstract
The mucosal immune system of the respiratory tract is specialized to continuously monitor the external environment and to protect against invading pathogens, while maintaining tolerance to innocuous inhaled particles. Allergies result from a loss of tolerance against harmless antigens characterized by formation of allergen-specific Th2 cells and IgE. Tolerance is often described as a balance between harmful Th2 cells and various types of protective "regulatory" T cells. However, the identity of the protective T cells in healthy vs. allergic individuals or following successful allergen-specific therapy is controversially discussed. Recent technological progress enabling the identification of antigen-specific effector and regulatory T cells has significantly contributed to our understanding of tolerance. Here we discuss the experimental evidence for the various tolerance mechanisms described. We try to integrate the partially contradictory data into a new model proposing different mechanism of tolerance depending on the quality and quantity of the antigens as well as the way of antigen exposure. Understanding the basis of tolerance is essential for the rational design of novel and more efficient immunotherapies.
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21
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Xin L, Gao J, Ge X, Tian C, Ma W, Tian Z, Zheng X, Hou J. Increased pro-inflammatory cytokine-secreting regulatory T cells are correlated with the plasticity of T helper cell differentiation and reflect disease status in asthma. Respir Med 2018; 143:129-138. [PMID: 30261984 DOI: 10.1016/j.rmed.2018.09.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Revised: 09/09/2018] [Accepted: 09/10/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND Human regulatory T cells (Tregs) are a heterogeneous population which consists of three distinct subpopulations: CD25+CD45RA+ resting Treg (rTreg) cells; CD25hiCD45RA- activated Treg (aTreg) cells, which are both suppressive; and CD25+CD45RA- cytokine-secreting T cells with pro-inflammatory capacity. OBJECTIVE We investigated variation in peripheral Treg subpopulations of asthma and explored their potential roles in asthma inflammation. METHODS Twenty-eight mild asthma patients, 26 moderate asthma patients, 18 severe asthma patients, and 36 healthy controls were recruited for a cross-sectional study. Phenotyping of peripheral CD4+ Tregs was performed based on flow cytometry results. RESULTS The proportions of rTreg and aTreg cells among CD4+ T cells were higher in mild and moderate asthma patients than in healthy controls. All three groups of asthmatics had a higher proportion of pro-inflammatory Tregs than healthy controls, and these increased with asthma severity. The proportion of IL-17-producing Foxp3+ cells and IFN-ɤ-producing Foxp3+ cells strongly correlated with T helper 17 (Th17) cells (r = 0.66, p < 0.001) and Th1 cells (r = 0.48, p < 0.001). The pro-inflammatory Treg subpopulation was correlated with the severity of asthma and may be insensitive to corticosteroids. CONCLUSIONS Our data suggest that pro-inflammatory Treg subpopulations may be relevant to the plasticity of Th17 and Th1 differentiation and play an important role in the pathogenesis of asthma.
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Affiliation(s)
- Lei Xin
- Ningxia Medical University, Ningxia, China.
| | - Junjie Gao
- Ningxia Medical University, Ningxia, China.
| | - Xiahui Ge
- Department of Respiratory Medicine, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China.
| | | | - Weirong Ma
- Department of Respiratory and Critical Care Medicine, General Hospital of Ningxia Medical University, Ningxia, China.
| | - Zhigang Tian
- Department of Respiratory and Critical Care Medicine, General Hospital of Ningxia Medical University, Ningxia, China.
| | - Xiwei Zheng
- Department of Respiratory and Critical Care Medicine, General Hospital of Ningxia Medical University, Ningxia, China.
| | - Jia Hou
- Department of Respiratory and Critical Care Medicine, General Hospital of Ningxia Medical University, Ningxia, China.
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22
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Moldaver DM, Bharhani MS, Rudulier CD, Wattie J, Inman MD, Larché M. Induction of bystander tolerance and immune deviation after Fel d 1 peptide immunotherapy. J Allergy Clin Immunol 2018; 143:1087-1099.e4. [PMID: 29906527 DOI: 10.1016/j.jaci.2018.03.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 02/08/2018] [Accepted: 03/28/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Treatment of patients with cat allergy with peptides derived from Fel d 1 (the major cat allergen) ameliorated symptoms of cat allergy in phase 2 clinical trials. OBJECTIVE We sought to demonstrate that the tolerance induced by Fel d 1 peptide immunotherapy can be exploited to reduce allergic responses to a second allergen, ovalbumin (OVA), in mice sensitized dually to OVA and Fel d 1. METHODS Induction of tolerance to OVA was achieved through simultaneous exposure to both allergens after peptide treatment. Functional tolerance to each allergen was assessed in a model of allergic airways disease in which treated mice were protected from eosinophilia, goblet cell hyperplasia, and TH2 cell infiltration. RESULTS Suppression of allergic responses to cat allergen challenge was associated with significant increases in numbers of CD4+CD25+Foxp3+ T cells, IL-10+ cells, and CD19+IL-10+ B cells, whereas the response to OVA was associated with a marked reduction in numbers of TH2 cytokine-secreting T cells and less prominent changes in outcomes associated with immune regulation. CONCLUSIONS These observations suggest that immune tolerance induced by peptide immunotherapy can be used experimentally to treat an allergic response to another allergen and that the molecular mechanisms underlying induction of tolerance to a treatment-specific allergen and a bystander allergen might be different.
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Affiliation(s)
- Daniel M Moldaver
- Firestone Institute for Respiratory Health, St Joseph's Healthcare, Divisions of Respirology, and Clinical Immunology & Allergy, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Mantej S Bharhani
- Firestone Institute for Respiratory Health, St Joseph's Healthcare, Divisions of Respirology, and Clinical Immunology & Allergy, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Christopher D Rudulier
- Firestone Institute for Respiratory Health, St Joseph's Healthcare, Divisions of Respirology, and Clinical Immunology & Allergy, Department of Medicine, McMaster University, Hamilton, Ontario, Canada; Division of Respirology, Critical Care and Sleep Medicine, Department of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Jennifer Wattie
- Firestone Institute for Respiratory Health, St Joseph's Healthcare, Divisions of Respirology, and Clinical Immunology & Allergy, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Mark D Inman
- Firestone Institute for Respiratory Health, St Joseph's Healthcare, Divisions of Respirology, and Clinical Immunology & Allergy, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Mark Larché
- Firestone Institute for Respiratory Health, St Joseph's Healthcare, Divisions of Respirology, and Clinical Immunology & Allergy, Department of Medicine, McMaster University, Hamilton, Ontario, Canada.
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Wiest M, Upchurch K, Yin W, Ellis J, Xue Y, Lanier B, Millard M, Joo H, Oh S. Clinical implications of CD4 + T cell subsets in adult atopic asthma patients. Allergy Asthma Clin Immunol 2018; 14:7. [PMID: 29507584 PMCID: PMC5833086 DOI: 10.1186/s13223-018-0231-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 01/22/2018] [Indexed: 12/27/2022] Open
Abstract
Background T cells play a central role in chronic inflammation in asthma. However, the roles of individual subsets of T cells in the pathology of asthma in patients remain to be better understood. Methods We investigated the potential signatures of T cell subset phenotypes in asthma using fresh whole blood from adult atopic asthma patients (n = 43) and non-asthmatic control subjects (n = 22). We further assessed their potential clinical implications by correlating asthma severity. Results We report four major features of CD4+ T cells in the blood of atopic asthma patients. First, patients had a profound increase of CCR7+ memory CD4+ T cells, but not CCR7− memory CD4+ T cells. Second, an increase in CCR4+ CD4+ T cells in patients was mainly attributed to the increase of CCR7+ memory CD4+ T cells. Accordingly, the frequency of CCR4+CCR7+ memory CD4+ T cells correlated with asthma severity. Current common asthma therapeutics (including corticosteroids) were not able to affect the frequency of CCR4+CCR7+ memory CD4+ T cell subsets. Third, patients had an increase of Tregs, as assessed by measuring CD25, Foxp3, IL-10 and CTLA-4 expression. However, asthma severity was inversely correlated only with the frequency of CTLA-4+ CD4+ T cells. Lastly, patients and control subjects have similar frequencies of CD4+ T cells that express CCR5, CCR6, CXCR3, CXCR5, CD11a, or α4 integrin. However, the frequency of α4+ CD4+ T cells in patients correlated with asthma severity. Conclusions CCR4+CCR7+ memory, but not CCR4+CCR7− memory, α4+, and CTLA4+ CD4+ T cells in patients show significant clinical implications in atopic asthma. Current common therapeutics cannot alter the frequency of such CD4+ T cell subsets in adult atopic asthma patients. Electronic supplementary material The online version of this article (10.1186/s13223-018-0231-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Matthew Wiest
- 1Baylor Institute for Immunology Research, 3434 Live Oak St., Dallas, TX 75204 USA.,2Institute for Biomedical Studies, Baylor University, Waco, TX USA
| | - Katherine Upchurch
- 1Baylor Institute for Immunology Research, 3434 Live Oak St., Dallas, TX 75204 USA.,2Institute for Biomedical Studies, Baylor University, Waco, TX USA
| | - Wenjie Yin
- 1Baylor Institute for Immunology Research, 3434 Live Oak St., Dallas, TX 75204 USA.,2Institute for Biomedical Studies, Baylor University, Waco, TX USA
| | - Jerome Ellis
- 1Baylor Institute for Immunology Research, 3434 Live Oak St., Dallas, TX 75204 USA
| | - Yaming Xue
- 1Baylor Institute for Immunology Research, 3434 Live Oak St., Dallas, TX 75204 USA
| | | | - Mark Millard
- 4Martha Foster Lung Care Center, Baylor University Medical Center, Dallas, TX USA
| | - HyeMee Joo
- 1Baylor Institute for Immunology Research, 3434 Live Oak St., Dallas, TX 75204 USA.,2Institute for Biomedical Studies, Baylor University, Waco, TX USA
| | - SangKon Oh
- 1Baylor Institute for Immunology Research, 3434 Live Oak St., Dallas, TX 75204 USA.,2Institute for Biomedical Studies, Baylor University, Waco, TX USA
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He D, Liu M, Liu B. Interleukin-35 as a New Biomarker of Renal Involvement in Lupus Nephritis Patients. TOHOKU J EXP MED 2018; 244:263-270. [PMID: 29576585 DOI: 10.1620/tjem.244.263] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Di He
- Department of Rheumatology and Immunology, China-Japan Union Hospital of Jilin University
| | - Min Liu
- Department of Rheumatology and Immunology, China-Japan Union Hospital of Jilin University
| | - Bo Liu
- Department of Rheumatology and Immunology, China-Japan Union Hospital of Jilin University
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25
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De la Cruz-Mosso U, García-Iglesias T, Bucala R, Estrada-García I, González-López L, Cerpa-Cruz S, Parra-Rojas I, Gámez-Nava JI, Pérez-Guerrero EE, Muñoz-Valle JF. MIF promotes a differential Th1/Th2/Th17 inflammatory response in human primary cell cultures: Predominance of Th17 cytokine profile in PBMC from healthy subjects and increase of IL-6 and TNF-α in PBMC from active SLE patients. Cell Immunol 2017; 324:42-49. [PMID: 29397904 DOI: 10.1016/j.cellimm.2017.12.010] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 12/23/2017] [Accepted: 12/25/2017] [Indexed: 01/05/2023]
Abstract
Macrophage migration Inhibitory Factor (MIF) is a cytokine associated with the pathogenesis of autoimmune inflammatory diseases. There is evidence that MIF functions in a positive-feedback-loop with proinflammatory cytokines and could perpetuate the inflammatory process in Systemic Lupus Erythematosus (SLE).The aim of this study was to assess the effect of recombinant-human-MIF (rhMIF) on the expression of Th1, Th2 and Th17 cytokines in Peripheral Blood Mononuclear Cells (PBMC) from Healthy Subjects (HS) and SLE patients. The PBMC were isolated from SLE patients classified according to the 1997 SLE ACR criteria and HS donors; all subjects included were women from an unrelated Mexican-Mestizo population. The PBMC isolated were stimulated with rhMIF, LPS and ISO-1 in different combinations; Th1, Th2 and Th17cytokine profiles levels were determined by MAGPIX Bio-plex assay in supernatants from cell cultures. We observed in supernatants of PBMCs from HS treated with rhMIF a predominance of Th17 cytokine profile with an increase of IL-17A, IL-17F and IL-21 versus PBMCs from SLE patients, which showed an inflammatory profile represented by increase of IL-6 cytokine. According to SLE remission/activity presented at enrollment in the study (Mex-SLEDAI index), the PBMC from active SLE patients showed higher levels of TNF-α and IL-6 versus PBMC from remission SLE patients. In conclusion, our results suggest that MIF can induce a differential inflammatory response in physiological and pathological conditions with a predominance of a Th17 cytokine profile in PBMC from HS and an increase in TNF-α and IL-6 expression in PBMC from active SLE patients.
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Affiliation(s)
- Ulises De la Cruz-Mosso
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - Trinidad García-Iglesias
- Laboratorio de Inmunología, Departamento de Fisiología, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico
| | - Richard Bucala
- Department of Medicine/Section of Rheumatology, Yale University School of Medicine, New Haven, USA
| | - Iris Estrada-García
- Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México, Mexico
| | - Laura González-López
- Departamento de Medicina Interna-Reumatología, Hospital General Regional 110, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
| | - Sergio Cerpa-Cruz
- División de Reumatología, Hospital Civil de Guadalajara "Fray Antonio Alcalde", Guadalajara, Jalisco, Mexico
| | - Isela Parra-Rojas
- Facultad de Ciencias Químico Biológicas, Universidad Autónoma de Guerrero, Chilpancingo, Guerrero, Mexico
| | - Jorge Iván Gámez-Nava
- Unidad de Investigación en Epidemiologia Clínica, Hospital de Especialidades, Centro Médico Nacional de Occidente. Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
| | - Edsaúl Emilio Pérez-Guerrero
- Departamento de Medicina Interna-Reumatología, Hospital General Regional 110, Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico; Unidad de Investigación en Epidemiologia Clínica, Hospital de Especialidades, Centro Médico Nacional de Occidente. Instituto Mexicano del Seguro Social, Guadalajara, Jalisco, Mexico
| | - José Francisco Muñoz-Valle
- Instituto de Investigación en Ciencias Biomédicas, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico.
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26
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Chan CC, Lai CW, Wu CJ, Chen LC, Tao MH, Kuo ML. Liver-Specific Allergen Gene Transfer by Adeno-Associated Virus Suppresses Allergic Airway Inflammation in Mice. Hum Gene Ther 2017; 27:631-42. [PMID: 27178525 DOI: 10.1089/hum.2015.161] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Allergic airway inflammation driven by T helper 2 (Th2)-type immunity is characterized by airway hyperresponsiveness, eosinophilic infiltration, and elevated IgE production. Various novel strategies for managing asthma have been explored, such as DNA vaccines, T-cell peptides, and allergen-specific immunotherapy. A principal goal of most immunotherapeutic approaches is active and long-term allergen-specific tolerance. Liver-specific gene transfer using adeno-associated virus (AAV) has been shown to favorably induce tolerogenic responses to therapeutic products in various experimental models. AAV8 has strong liver tropism and induces immune tolerance in mice. The present study aimed to determine whether hepatocyte-specific allergen expression by pseudotyped AAV2/8 alleviates asthmatic symptoms in ovalbumin (OVA)-sensitized mice. Mice were intravenously injected with AAV2/8 vector carrying membrane-bound OVA transgene under transcriptional control of a hepatocyte-specific alpha 1 antitrypsin promoter (AAV2/8-OVA) and then sensitized with OVA. AAV2/8-OVA specifically transduced the OVA transgene in the liver. Airway hyperresponsiveness, eosinophilia, mucus hypersecretion, and Th2 cytokines were significantly suppressed in both the lungs and secondary lymphoid organs of asthmatic mice infected with AAV2/8-OVA. Significant reduction of OVA-specific antibodies was detected in the bronchoalveolar lavage fluid from AAV2/8-OVA-treated mice. Moreover, AAV2/8-OVA treatment prominently promoted the expression of Foxp3, IL-10, and TGF-β in the liver. Enhanced Foxp3 expression was also detected in the lungs of asthmatic mice after AAV2/8-OVA treatment. Taken together, these results suggest that the induction of immune tolerance by hepatic AAV gene transfer may be beneficial for modulating allergic asthma.
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Affiliation(s)
- Cheng-Chi Chan
- 1 Graduate Institute of Biomedical Sciences, Chang Gung University , Taoyuan, Taiwan
| | - Chin-Wen Lai
- 2 Institute of Biomedical Sciences , Academia Sinica, Taipei, Taiwan .,3 Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University , Taoyuan, Taiwan
| | - Chia-Jen Wu
- 2 Institute of Biomedical Sciences , Academia Sinica, Taipei, Taiwan
| | - Li-Chen Chen
- 4 Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital , Taoyuan, Taiwan
| | - Mi-Hua Tao
- 2 Institute of Biomedical Sciences , Academia Sinica, Taipei, Taiwan
| | - Ming-Ling Kuo
- 1 Graduate Institute of Biomedical Sciences, Chang Gung University , Taoyuan, Taiwan .,4 Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital , Taoyuan, Taiwan .,5 Department of Microbiology and Immunology, College of Medicine, Chang Gung University , Taoyuan, Taiwan .,6 Chang Gung Immunology Consortium, Chang Gung Memorial Hospital and Chang Gung University , Taoyuan, Taiwan
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Dong H, Huang Y, Yao S, Liang B, Long Y, Xie Y, Mai J, Gong S, Zhou Z. The recombinant fusion protein of cholera toxin B and neutrophil-activating protein expressed on Bacillus subtilis spore surface suppresses allergic inflammation in mice. Appl Microbiol Biotechnol 2017; 101:5819-5829. [PMID: 28608279 DOI: 10.1007/s00253-017-8370-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 05/25/2017] [Accepted: 05/29/2017] [Indexed: 12/28/2022]
Abstract
The neutrophil-activating protein of Helicobacter pylori (HP-NAP) has been identified as a modulator with anti-Th2 inflammation activity, and cholera toxin B (CTB) is a mucosal adjuvant that can also induce antigen tolerance. In this study, we constructed a CTB-NAP fusion protein on the surface of Bacillus subtilis spore and evaluate the efficiency of oral administration of the recombinant CTB-NAP spores in preventing asthma in mice. Oral administration of recombinant CTB or CTB-NAP spores significantly decreased serum ovalbumin (OVA)-specific IgE (p < 0.001) and increased fecal IgA (p < 0.01) compared to the treatment with non-recombinant spores. Oral administration of recombinant CTB or CTB-NAP spores induced IL-10 and IFN-γ expression and reduced IL-4 levels in bronchoalveolar lavage fluid (BALF). Moreover, CTB and CTB-NAP spores reduced the eosinophils in BALF and inflammatory cell infiltration in the lungs. Furthermore, CD4+CD25+Foxp3+ Tregs in splenocytes were significantly increased in mice treated with recombinant CTB or CTB-NAP spores. The number of CD4+CD25+Foxp3+ Tregs caused by CTB-NAP was higher than that by CTB alone. Our study indicated that B. subtilis spores with surface expression of subunit CTB or CTB-NAP could inhibit OVA-induced allergic inflammation in mice. The attenuated inflammation was attributed to the induction of CD4+CD25+Foxp3+ Tregs and IgA. Moreover, the fusion protein CTB-NAP demonstrated a better efficiency than CTB alone in inhibiting the inflammation.
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Affiliation(s)
- Hui Dong
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
- The First Women and Children's Hospital of Huizhou, Huizhou, 516000, China
| | - Yanmei Huang
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Shuwen Yao
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Bingshao Liang
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Yan Long
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Yongqiang Xie
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Jialiang Mai
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Sitang Gong
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China
| | - Zhenwen Zhou
- Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, 510120, China.
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28
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Penberthy KK, Buckley MW, Arandjelovic S, Ravichandran K. Ex vivo modulation of the Foxo1 phosphorylation state does not lead to dysfunction of T regulatory cells. PLoS One 2017; 12:e0173386. [PMID: 28267764 PMCID: PMC5340387 DOI: 10.1371/journal.pone.0173386] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 02/20/2017] [Indexed: 12/17/2022] Open
Abstract
Peripheral regulatory CD4+ T cells (Treg cells) prevent maladaptive inflammatory responses to innocuous foreign antigens. Treg cell dysfunction has been linked to many inflammatory diseases, including allergic airway inflammation. Glucocorticoids that are used to treat allergic airway inflammation and asthma are thought to work in part by promoting Treg cell differentiation; patients who are refractory to these drugs have defective induction of anti-inflammatory Treg cells. Previous observations suggest that Treg cells deficient in the transcription factor FoxO1 are pro-inflammatory, and that FoxO1 activity is regulated by its phosphorylation status and nuclear localization. Here, we asked whether altering the phosphorylation state of FoxO1 through modulation of a regulatory phosphatase might affect Treg cell function. In a mouse model of house dust mite-induced allergic airway inflammation, we observed robust recruitment of Treg cells to the lungs and lymph nodes of diseased mice, without an apparent increase in the Treg cytokine interleukin-10 in the airways. Intriguingly, expression of PP2A, a serine/threonine phosphatase linked to the regulation of FoxO1 phosphorylation, was decreased in the mediastinal lymph nodes of HDM-treated mice, mirroring the decreased PP2A expression seen in peripheral blood monocytes of glucocorticoid-resistant asthmatic patients. When we asked whether modulation of PP2A activity alters Treg cell function via treatment with the PP2A inhibitor okadaic acid, we observed increased phosphorylation of FoxO1 and decreased nuclear localization. However, dysregulation of FoxO1 did not impair Treg cell differentiation ex vivo or cause Treg cells to adopt a pro-inflammatory phenotype. Moreover, inhibition of PP2A activity did not affect the suppressive function of Treg cells ex vivo. Collectively, these data suggest that modulation of the phosphorylation state of FoxO1 via PP2A inhibition does not modify Treg cell function ex vivo. Our data also highlight the caveat in using ex vivo assays of Treg cell differentiation and function, in that while these assays are useful, they may not fully recapitulate Treg cell phenotypes that are observed in vivo.
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Affiliation(s)
- Kristen Kelley Penberthy
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, Virginia, United States of America
- Center for Cell Clearance, University of Virginia, Charlottesville, Virginia, United States of America
- Carter Immunology Center, University of Virginia, Charlottesville, Virginia, United States of America
| | - Monica Weaver Buckley
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, Virginia, United States of America
- Center for Cell Clearance, University of Virginia, Charlottesville, Virginia, United States of America
- Carter Immunology Center, University of Virginia, Charlottesville, Virginia, United States of America
| | - Sanja Arandjelovic
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, Virginia, United States of America
- Center for Cell Clearance, University of Virginia, Charlottesville, Virginia, United States of America
- Carter Immunology Center, University of Virginia, Charlottesville, Virginia, United States of America
| | - Kodi Ravichandran
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, Virginia, United States of America
- Center for Cell Clearance, University of Virginia, Charlottesville, Virginia, United States of America
- Carter Immunology Center, University of Virginia, Charlottesville, Virginia, United States of America
- * E-mail:
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29
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Folate status, regulatory T cells and MTHFR C677T polymorphism study in allergic children. Adv Med Sci 2016; 61:300-305. [PMID: 27149557 DOI: 10.1016/j.advms.2016.03.010] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 03/01/2016] [Accepted: 03/30/2016] [Indexed: 12/22/2022]
Abstract
PURPOSE This study aimed to investigate early-life folate serum concentrations in children with food, inhalant or mixed type allergy. The influence of folate levels on the FoxP3 expression in Treg (regulatory T) cells in the studied children, taking into account the MTHFR (5,10-methylenetetrahydrofolate reductase) genotypes was also analyzed. MATERIAL AND METHODS The study was performed in 83 allergic children (study group) and 49 healthy children (control group), aged 2-72 months. Medical history of each child was obtained and laboratory tests (serum folic acid concentrations and MTHFR C677T polymorphism) were carried out. The percentage of Treg cells was evaluated in almost a half of the examined subjects (48.5%). RESULTS Significantly higher serum folate levels in the group of children with food allergy than in those with inhalant allergy was confirmed (P=0.037). In the study group the TT homozygotes were characterized by significantly lower folate concentrations than CC homozygotes (P=0.045). A negative correlation was demonstrated between the FoxP3 expression in CD4+CD25highFoxP3+ peripheral blood lymphocytes and serum folic acid concentrations. The correlation was more pronounced in the group of allergic children and it was statistically significant (r=-0.339, P<0.05). CONCLUSIONS The results of the study indicate a possibility of some effects of folate status on Treg cells, thus suggesting their potential role in the development and course of allergy in children.
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Meyer-Martin H, Hahn SA, Beckert H, Belz C, Heinz A, Jonuleit H, Becker C, Taube C, Korn S, Buhl R, Reuter S, Tuettenberg A. GARP inhibits allergic airway inflammation in a humanized mouse model. Allergy 2016; 71:1274-83. [PMID: 26990894 DOI: 10.1111/all.12883] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2016] [Indexed: 01/04/2023]
Abstract
BACKGROUND Regulatory T cells (Treg) represent a promising target for novel treatment strategies in patients with inflammatory/allergic diseases. A soluble derivate of the Treg surface molecule glycoprotein A repetitions predominant (sGARP) has strong anti-inflammatory and regulatory effects on human cells in vitro as well as in vivo through de novo induction of peripheral Treg. The aim of this study was to investigate the immunomodulatory function of sGARP and its possible role as a new therapeutic option in allergic diseases using a humanized mouse model. METHODS To analyze the therapeutic effects of sGARP, adult NOD/Scidγc(-/-) (NSG) mice received peripheral blood mononuclear cells (PBMC) derived from allergic patients with sensitization against birch allergen. Subsequently, allergic inflammation was induced in the presence of Treg alone or in combination with sGARP. RESULTS In comparison with mice that received Treg alone, additional treatment with sGARP reduced airway hyperresponsiveness (AHR), influx of neutrophils and macrophages into the bronchoalveolar lavage (BAL), and human CD45(+) cells in the lungs. Furthermore, the numbers of mucus-producing goblet cells and inflammatory cell infiltrates were reduced. To elucidate whether the mechanism of action of sGARP involves the TGF-β receptor pathway, mice additionally received anti-TGF-β receptor II (TGF-βRII) antibodies. Blocking the signaling of TGF-β through TGF-βRII abrogated the anti-inflammatory effects of sGARP, confirming its essential role in inhibiting the allergic inflammation. CONCLUSION Induction of peripheral tolerance via sGARP is a promising potential approach to treat allergic airway diseases.
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Affiliation(s)
- H. Meyer-Martin
- The III Medical Department; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - S. A. Hahn
- The Department of Dermatology; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - H. Beckert
- The III Medical Department; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - C. Belz
- The III Medical Department; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - A. Heinz
- The III Medical Department; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - H. Jonuleit
- The Department of Dermatology; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - C. Becker
- The Department of Dermatology; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - C. Taube
- The Department of Pulmonology; University Medical Center; Leiden Netherlands
| | - S. Korn
- The III Medical Department; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - R. Buhl
- The III Medical Department; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - S. Reuter
- The III Medical Department; University Medical Center; Johannes Gutenberg University; Mainz Germany
| | - A. Tuettenberg
- The Department of Dermatology; University Medical Center; Johannes Gutenberg University; Mainz Germany
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31
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Majewska A, Gajewska M, Dembele K, Maciejewski H, Prostek A, Jank M. Lymphocytic, cytokine and transcriptomic profiles in peripheral blood of dogs with atopic dermatitis. BMC Vet Res 2016; 12:174. [PMID: 27553600 PMCID: PMC4995625 DOI: 10.1186/s12917-016-0805-6] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 08/18/2016] [Indexed: 02/06/2023] Open
Abstract
Background Canine atopic dermatitis (cAD) is a common chronic and pruritic skin disease in dogs. The development of cAD involves complex interactions between environmental antigens, genetic predisposition and a number of disparate cell types. The aim of the present study was to perform comprehensive analyses of peripheral blood of AD dogs in relation to healthy subjects in order to determine the changes which would be characteristic for cAD. Results The number of cells in specific subpopulations of lymphocytes was analyzed by flow cytometry, concentration of chosen pro- and anti-inflammatory cytokines (IL-4, IL-10, IL-13, TNF-α, TGF-β1) was determined by ELISA; and microarray analysis was performed on RNA samples isolated from peripheral blood nuclear cells of AD and healthy dogs. The number of Th cells (CD3+CD4+) in AD and healthy dogs was similar, whereas the percentage of Tc (CD3+CD8+) and Treg (CD4+CD25+ Foxp3+) cells increased significantly in AD dogs. Increased concentrations of IL-13 and TNF-α, and decreased levels of IL-10 and TGF-β1 was observed in AD dogs. The level of IL-4 was similar in both groups of animals. Results of the microarray experiment revealed differentially expressed genes involved in transcriptional regulation (e.g., transcription factors: SMAD2, RORA) or signal transduction pathways (e.g., VEGF, SHB21, PROC) taking part in T lymphocytes lineages differentiation and cytokines synthesis. Conclusions Results obtained indicate that CD8+ T cells, beside CD4+ T lymphocytes, contribute to the development of the allergic response. Increased IL-13 concentration in AD dogs suggests that this cytokine may play more important role than IL-4 in mediating changes induced by allergic inflammation. Furthermore, observed increase in Treg cells in parallel with high concentrations of TNF-α and low levels of IL-10 and TGF-β1 in the peripheral blood of AD dogs point at the functional insufficiency of Treg cells in patients with AD. Electronic supplementary material The online version of this article (doi:10.1186/s12917-016-0805-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Alicja Majewska
- Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Warsaw, Poland.
| | - Małgorzata Gajewska
- Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Warsaw, Poland
| | - Kourou Dembele
- Department of Small Animal Diseases with Clinic, Faculty of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Warsaw, Poland
| | - Henryk Maciejewski
- Department of Computer Engineering, Wroclaw University of Technology, Wrocław, Poland
| | - Adam Prostek
- Department of Physiological Sciences, Faculty of Veterinary Medicine, Warsaw University of Life Sciences-SGGW, Warsaw, Poland
| | - Michał Jank
- Veterinary Institute, Faculty of Veterinary Medicine and Animal Sciences, Poznań University of Life Sciences, Poznań, Poland
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Chopra M, Biehl M, Steinfatt T, Brandl A, Kums J, Amich J, Vaeth M, Kuen J, Holtappels R, Podlech J, Mottok A, Kraus S, Jordán-Garrote AL, Bäuerlein CA, Brede C, Ribechini E, Fick A, Seher A, Polz J, Ottmüller KJ, Baker J, Nishikii H, Ritz M, Mattenheimer K, Schwinn S, Winter T, Schäfer V, Krappmann S, Einsele H, Müller TD, Reddehase MJ, Lutz MB, Männel DN, Berberich-Siebelt F, Wajant H, Beilhack A. Exogenous TNFR2 activation protects from acute GvHD via host T reg cell expansion. J Exp Med 2016; 213:1881-900. [PMID: 27526711 PMCID: PMC4995078 DOI: 10.1084/jem.20151563] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Accepted: 06/24/2016] [Indexed: 12/22/2022] Open
Abstract
Activation of TNFR2 with a novel agonist expands T reg cells in vivo and protects allo-HCT recipients from acute GvHD while sparing antilymphoma and antiinfectious properties of transplanted donor T cells. Donor CD4+Foxp3+ regulatory T cells (T reg cells) suppress graft-versus-host disease (GvHD) after allogeneic hematopoietic stem cell transplantation (HCT [allo-HCT]). Current clinical study protocols rely on the ex vivo expansion of donor T reg cells and their infusion in high numbers. In this study, we present a novel strategy for inhibiting GvHD that is based on the in vivo expansion of recipient T reg cells before allo-HCT, exploiting the crucial role of tumor necrosis factor receptor 2 (TNFR2) in T reg cell biology. Expanding radiation-resistant host T reg cells in recipient mice using a mouse TNFR2-selective agonist before allo-HCT significantly prolonged survival and reduced GvHD severity in a TNFR2- and T reg cell–dependent manner. The beneficial effects of transplanted T cells against leukemia cells and infectious pathogens remained unaffected. A corresponding human TNFR2-specific agonist expanded human T reg cells in vitro. These observations indicate the potential of our strategy to protect allo-HCT patients from acute GvHD by expanding T reg cells via selective TNFR2 activation in vivo.
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Affiliation(s)
- Martin Chopra
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany Center for Interdisciplinary Clinical Research, Würzburg University, 97080 Würzburg, Germany
| | - Marlene Biehl
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany Center for Interdisciplinary Clinical Research, Würzburg University, 97080 Würzburg, Germany
| | - Tim Steinfatt
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany Center for Interdisciplinary Clinical Research, Würzburg University, 97080 Würzburg, Germany Graduate School of Life Sciences, Würzburg University, 97080 Würzburg, Germany
| | - Andreas Brandl
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany Center for Interdisciplinary Clinical Research, Würzburg University, 97080 Würzburg, Germany
| | - Juliane Kums
- Division of Molecular Internal Medicine, Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany
| | - Jorge Amich
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany Center for Interdisciplinary Clinical Research, Würzburg University, 97080 Würzburg, Germany
| | - Martin Vaeth
- Department of Molecular Pathology, Institute of Pathology, Würzburg University, 97080 Würzburg, Germany
| | - Janina Kuen
- Department of Molecular Pathology, Institute of Pathology, Würzburg University, 97080 Würzburg, Germany
| | - Rafaela Holtappels
- Institute for Virology and Research Center of Immunotherapy, University Medical Center of the Johannes Gutenberg-University, 55131 Mainz, Germany
| | - Jürgen Podlech
- Institute for Virology and Research Center of Immunotherapy, University Medical Center of the Johannes Gutenberg-University, 55131 Mainz, Germany
| | - Anja Mottok
- Institute of Pathology, Würzburg University, 97080 Würzburg, Germany
| | - Sabrina Kraus
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany Center for Interdisciplinary Clinical Research, Würzburg University, 97080 Würzburg, Germany
| | - Ana-Laura Jordán-Garrote
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany Center for Interdisciplinary Clinical Research, Würzburg University, 97080 Würzburg, Germany Graduate School of Life Sciences, Würzburg University, 97080 Würzburg, Germany
| | - Carina A Bäuerlein
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany Center for Interdisciplinary Clinical Research, Würzburg University, 97080 Würzburg, Germany Graduate School of Life Sciences, Würzburg University, 97080 Würzburg, Germany
| | - Christian Brede
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany Center for Interdisciplinary Clinical Research, Würzburg University, 97080 Würzburg, Germany Graduate School of Life Sciences, Würzburg University, 97080 Würzburg, Germany
| | - Eliana Ribechini
- Institute for Virology and Immunobiology, Würzburg University, 97080 Würzburg, Germany
| | - Andrea Fick
- Division of Molecular Internal Medicine, Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany
| | - Axel Seher
- Division of Molecular Internal Medicine, Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany
| | - Johannes Polz
- Institute of Immunology, Regensburg University, 93053 Regensburg, Germany
| | - Katja J Ottmüller
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany Center for Interdisciplinary Clinical Research, Würzburg University, 97080 Würzburg, Germany Graduate School of Life Sciences, Würzburg University, 97080 Würzburg, Germany
| | - Jeanette Baker
- Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, CA 94305
| | - Hidekazu Nishikii
- Blood and Marrow Transplantation, Stanford University School of Medicine, Stanford, CA 94305
| | - Miriam Ritz
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany Center for Interdisciplinary Clinical Research, Würzburg University, 97080 Würzburg, Germany
| | - Katharina Mattenheimer
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany Center for Interdisciplinary Clinical Research, Würzburg University, 97080 Würzburg, Germany
| | - Stefanie Schwinn
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany Center for Interdisciplinary Clinical Research, Würzburg University, 97080 Würzburg, Germany
| | - Thorsten Winter
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany Center for Interdisciplinary Clinical Research, Würzburg University, 97080 Würzburg, Germany
| | - Viktoria Schäfer
- Division of Molecular Internal Medicine, Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany
| | - Sven Krappmann
- Microbiology Institute, Clinical Microbiology, Immunology and Hygiene, University Hospital Erlangen and Friedrich-Alexander University Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Hermann Einsele
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany
| | - Thomas D Müller
- Department for Molecular Plant Physiology and Biophysics, Julius-von-Sachs Institute, Würzburg University, 97080 Würzburg, Germany
| | - Matthias J Reddehase
- Institute for Virology and Research Center of Immunotherapy, University Medical Center of the Johannes Gutenberg-University, 55131 Mainz, Germany
| | - Manfred B Lutz
- Institute for Virology and Immunobiology, Würzburg University, 97080 Würzburg, Germany
| | - Daniela N Männel
- Institute of Immunology, Regensburg University, 93053 Regensburg, Germany
| | | | - Harald Wajant
- Division of Molecular Internal Medicine, Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany
| | - Andreas Beilhack
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg University, 97080 Würzburg, Germany Center for Interdisciplinary Clinical Research, Würzburg University, 97080 Würzburg, Germany Graduate School of Life Sciences, Würzburg University, 97080 Würzburg, Germany
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Regulation of eosinophilia and allergic airway inflammation by the glycan-binding protein galectin-1. Proc Natl Acad Sci U S A 2016; 113:E4837-46. [PMID: 27457925 DOI: 10.1073/pnas.1601958113] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Galectin-1 (Gal-1), a glycan-binding protein with broad antiinflammatory activities, functions as a proresolving mediator in autoimmune and chronic inflammatory disorders. However, its role in allergic airway inflammation has not yet been elucidated. We evaluated the effects of Gal-1 on eosinophil function and its role in a mouse model of allergic asthma. Allergen exposure resulted in airway recruitment of Gal-1-expressing inflammatory cells, including eosinophils, as well as increased Gal-1 in extracellular spaces in the lungs. In vitro, extracellular Gal-1 exerted divergent effects on eosinophils that were N-glycan- and dose-dependent. At concentrations ≤0.25 µM, Gal-1 increased eosinophil adhesion to vascular cell adhesion molecule-1, caused redistribution of integrin CD49d to the periphery and cell clustering, but inhibited ERK(1/2) activation and eotaxin-1-induced migration. Exposure to concentrations ≥1 µM resulted in ERK(1/2)-dependent apoptosis and disruption of the F-actin cytoskeleton. At lower concentrations, Gal-1 did not alter expression of adhesion molecules (CD49d, CD18, CD11a, CD11b, L-selectin) or of the chemokine receptor CCR3, but decreased CD49d and CCR3 was observed in eosinophils treated with higher concentrations of this lectin. In vivo, allergen-challenged Gal-1-deficient mice exhibited increased recruitment of eosinophils and CD3(+) T lymphocytes in the airways as well as elevated peripheral blood and bone marrow eosinophils relative to corresponding WT mice. Further, these mice had an increased propensity to develop airway hyperresponsiveness and displayed significantly elevated levels of TNF-α in lung tissue. This study suggests that Gal-1 can limit eosinophil recruitment to allergic airways and suppresses airway inflammation by inhibiting cell migration and promoting eosinophil apoptosis.
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Genetic and epigenetic studies of FOXP3 in asthma and allergy. Asthma Res Pract 2015; 1:10. [PMID: 27965764 PMCID: PMC5142332 DOI: 10.1186/s40733-015-0012-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Accepted: 09/24/2015] [Indexed: 12/15/2022] Open
Abstract
Multiple factors interact to trigger allergic diseases, including individual genetic background and factors related to the environment such as exposure to allergens, air pollution and respiratory infections. The FOXP3 transcription factor is constitutively expressed in CD4+CD25+FOXP3+ regulatory T cells (Tregs) and is critical for the maintenance of immune homeostasis. For example, FOXP3 is responsible for the suppression of the Th2 response following exposure to allergens. Studies have shown that expression of the FOXP3 gene is reduced in patients with asthma and allergies compared to healthy controls. Therefore, the impairment of FOXP3 function caused by genetic polymorphisms and/or epigenetic mechanisms may be involved in the etiology of asthma and other allergic diseases. This review discusses some aspects of the role of FOXP3 in the development of asthma and allergy, with a particular emphasis on genetic and epigenetic factors.
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Krogulska A, Polakowska E, Wąsowska-Królikowska K, Małachowska B, Młynarski W, Borowiec M. Decreased FOXP3 mRNA expression in children with atopic asthma and IgE-mediated food allergy. Ann Allergy Asthma Immunol 2015; 115:415-21. [PMID: 26409874 DOI: 10.1016/j.anai.2015.08.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 08/25/2015] [Accepted: 08/31/2015] [Indexed: 12/21/2022]
Abstract
BACKGROUND The role of T regulatory lymphocytes has been investigated in various allergic diseases. However, the precise relation between the phenotype and severity of allergic diseases and the changes in FOXP3 mRNA expression are not fully understood. OBJECTIVE To compare the expression of FOXP3 mRNA in children with asthma with and without concomitant food allergy (FA) with healthy children and children with only FA. METHODS The study included 82 children: 15 with atopic asthma and IgE-dependent FA, 27 with atopic asthma without FA, 20 with IgE-dependent FA without asthma, and 20 healthy children without atopy. Reverse transcription was performed using a commercially available High Capacity cDNA Archive Kit (Applied Biosystems, Carlsbad, California). Analysis was carried out with a 7900HT real-time polymerase chain reaction system (Applied Biosystems). RESULTS The average level of the FOXP3 gene expression in children with allergy was significantly lower compared with healthy children (2.2 ± 1.3 vs 4.2 ± 4.2; P = .014). The lowest mean level of FOXP3 mRNA expression (1.9 ± 1.6) was recorded in children with asthma and FA, and the highest level (4.2 ± 4.2) was recorded in healthy children without atopy (P = .036). A milder course of asthma or the degree of allergic reaction after a food challenge was associated with higher FOXP3 mRNA expression. CONCLUSION Significantly lower levels of FOXP3 gene expression, observed more commonly in children with asthma and IgE-dependent FA than in healthy controls, were associated with a more severe clinical course. Therefore, FOXP3 expression could serve as an indicator of severe asthma with concomitant atopic conditions such as IgE-dependent FA.
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Affiliation(s)
- Aneta Krogulska
- Department of Pediatric Allergology, Gastroenterology and Nutrition, Medical University of Lodz, Lodz, Poland.
| | - Ewa Polakowska
- Department of Pediatrics, Oncology, Hematology and Diabetes, Medical University of Lodz, Lodz, Poland
| | | | - Beata Małachowska
- Department of Pediatrics, Oncology, Hematology and Diabetes, Medical University of Lodz, Lodz, Poland
| | - Wojciech Młynarski
- Department of Pediatrics, Oncology, Hematology and Diabetes, Medical University of Lodz, Lodz, Poland
| | - Maciej Borowiec
- Department of Clinical Genetics, Medical University of Lodz, Lodz, Poland
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El Samahy MH, Attia EAS, Saad AA, Mahmoud EY. Circulating CD4(+) CD25(high) FoxP3(+) T-regulatory cells in patients with atopic dermatitis after narrowband-ultraviolet B phototherapy. Int J Dermatol 2015. [PMID: 26219909 DOI: 10.1111/ijd.12801] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Previous studies showed controversial results regarding CD4(+) CD25(high) FoxP3(+) T-regulatory cells (Tregs) in atopic dermatitis (AD) and effect of therapy. METHODS Circulating CD4(+) CD25(high) FoxP3(+) Tregs were assessed by flow cytometry in 20 controls and 20 patients with AD at baseline and after narrowband ultraviolet B with assessment of disease severity. RESULTS Patients showed higher pretreatment T-effector cells (Teffs) (%) and lower pretreatment Tregs FoxP3 expression% than controls (P = 0.003 and 0.01, respectively). Mild AD showed a lower Tregs/Teffs ratio compared to controls (P = 0.013), while moderate group showed higher Teffs%, and lower Tregs FoxP3 expression% and Tregs/Teffs compared to controls (P = 0.016, 0.007, and 0.009 respectively). The severe group had higher Tregs% and Teffs%, yet with a lower Tregs FoxP3 expression% compared to controls (P < 0.001, P = 0.043, P = 0.044, respectively). There was significant reduction of severity after narrowband ultraviolet B (P = 0.007), with overall significant elevation of Tregs FoxP3 expression% in patients (P = 0.004). All patients' post-treatment laboratory findings were statistically matched to each other and to controls whatever their previous severity or therapeutic response. The improvement of severity score correlated with the change in both Tregs% and Tregs/Teffs. CONCLUSIONS Significant reduction in AD disease severity is correlated with the change in Tregs% and Tregs/Teffs.
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Affiliation(s)
- May H El Samahy
- Department of Dermatology, Venereology, and Andrology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Enas A S Attia
- Department of Dermatology, Venereology, and Andrology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Abeer A Saad
- Department of Clinical Pathology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Eman Y Mahmoud
- Department of Dermatology, Venereology, and Andrology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
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Roediger B, Kyle R, Tay SS, Mitchell AJ, Bolton HA, Guy TV, Tan SY, Forbes-Blom E, Tong PL, Köller Y, Shklovskaya E, Iwashima M, McCoy KD, Le Gros G, Fazekas de St Groth B, Weninger W. IL-2 is a critical regulator of group 2 innate lymphoid cell function during pulmonary inflammation. J Allergy Clin Immunol 2015; 136:1653-1663.e7. [PMID: 26025126 DOI: 10.1016/j.jaci.2015.03.043] [Citation(s) in RCA: 107] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Revised: 02/07/2015] [Accepted: 03/20/2015] [Indexed: 12/16/2022]
Abstract
BACKGROUND Group 2 innate lymphoid cells (ILC2) have been implicated in the pathogenesis of allergic lung diseases. However, the upstream signals that regulate ILC2 function during pulmonary inflammation remain poorly understood. ILC2s have been shown to respond to exogenous IL-2, but the importance of endogenous IL-2 in ILC2 function in vivo remains unclear. OBJECTIVE We sought to understand the role of IL-2 in the regulation of ILC2 function in the lung. METHODS We used histology, flow cytometry, immunohistochemistry, ELISA, and quantitative PCR with knockout and reporter mice to dissect pulmonary ILC2 function in vivo. We examined the role of ILC2s in eosinophilic crystalline pneumonia, an idiopathic type 2 inflammatory lung condition of mice, and the effect of IL-2 deficiency on this disease. We determined the effect of IL-2 administration on pulmonary ILC2 numbers and function in mice in the steady state and after challenge with IL-33. RESULTS We discovered an unexpected role for innate cell-derived IL-2 as a major cofactor of ILC2 function during pulmonary inflammation. Specifically, we found that IL-2 was essential for the development of eosinophilic crystalline pneumonia, a type 2 disease characterized by increased numbers of activated ILC2s. We show that IL-2 signaling serves 2 distinct functions in lung ILC2s, namely promoting cell survival/proliferation and serving as a cofactor for the production of type 2 cytokines. We further demonstrate that group 3 innate lymphoid cells are an innate immune source of IL-2 in the lung. CONCLUSION Innate cell-derived IL-2 is a critical cofactor in regulating ILC2 function in pulmonary type 2 pathology.
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Affiliation(s)
- Ben Roediger
- Centenary Institute, Newtown, Australia; Discipline of Dermatology, Sydney Medical School, University of Sydney, Sydney, Australia.
| | - Ryan Kyle
- Malaghan Institute of Medical Research, Wellington, New Zealand
| | - Szun S Tay
- Centenary Institute, Newtown, Australia; Discipline of Dermatology, Sydney Medical School, University of Sydney, Sydney, Australia
| | - Andrew J Mitchell
- Centenary Institute, Newtown, Australia; Discipline of Dermatology, Sydney Medical School, University of Sydney, Sydney, Australia
| | - Holly A Bolton
- Centenary Institute, Newtown, Australia; Discipline of Dermatology, Sydney Medical School, University of Sydney, Sydney, Australia
| | - Thomas V Guy
- Centenary Institute, Newtown, Australia; Discipline of Dermatology, Sydney Medical School, University of Sydney, Sydney, Australia
| | - Sioh-Yang Tan
- Centenary Institute, Newtown, Australia; Discipline of Dermatology, Sydney Medical School, University of Sydney, Sydney, Australia
| | | | - Philip L Tong
- Centenary Institute, Newtown, Australia; Discipline of Dermatology, Sydney Medical School, University of Sydney, Sydney, Australia; Department of Dermatology, Royal Prince Alfred Hospital, Camperdown, Australia
| | - Yasmin Köller
- Maurice Müller Laboratories, Universitätsklinik für Viszerale Chirurgie und Medizin (UVCM), University of Bern, Bern, Switzerland
| | - Elena Shklovskaya
- Centenary Institute, Newtown, Australia; Discipline of Dermatology, Sydney Medical School, University of Sydney, Sydney, Australia
| | - Makio Iwashima
- Department of Microbiology and Immunology, Loyola University Chicago, Maywood, Ill; Department of Thoracic and Cardiovascular Surgery, Loyola University Chicago, Maywood, Ill
| | - Kathy D McCoy
- Maurice Müller Laboratories, Universitätsklinik für Viszerale Chirurgie und Medizin (UVCM), University of Bern, Bern, Switzerland
| | - Graham Le Gros
- Malaghan Institute of Medical Research, Wellington, New Zealand; Victoria University of Wellington, Wellington, New Zealand
| | - Barbara Fazekas de St Groth
- Centenary Institute, Newtown, Australia; Discipline of Dermatology, Sydney Medical School, University of Sydney, Sydney, Australia.
| | - Wolfgang Weninger
- Centenary Institute, Newtown, Australia; Discipline of Dermatology, Sydney Medical School, University of Sydney, Sydney, Australia; Department of Dermatology, Royal Prince Alfred Hospital, Camperdown, Australia.
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Negoro T, Shimizu S, Narushima M, Banham AH, Wakabayashi H, Takayanagi R, Hagiwara T, Roncador G, Osabe T, Yanai T, Kin M, Ikeda K, Endo A, Akiyama H, Nakano Y. Elevated receptor for activated C kinase 1 expression is involved in intracellular Ca2+ influx and potentially associated with compromised regulatory T cell function in patients with asthma. Clin Exp Allergy 2015; 44:1154-69. [PMID: 25048599 DOI: 10.1111/cea.12375] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Revised: 05/09/2014] [Accepted: 07/02/2014] [Indexed: 12/31/2022]
Abstract
BACKGROUND Regulatory T cells (T(regs)) are activated during anergy in response to T cell receptor (TCR) activation and functional immune suppression. Anergy of paediatric T(regs) is partially dependent on intracellular calcium mobility; following TCR activation, T(regs) do not exhibit increased intracellular Ca(2+) concentration ([Ca(2+) ](i)). OBJECTIVE We determined whether [Ca(2+) ](i) in adult T(regs) defined their anergy, if intracellular Ca(2+) movement was linked to regulatory functions, whether [Ca(2+)](i) was indicative of asthma pathology, and the potential molecular mechanism responsible for Ca(2+) movement in T(regs). METHODS T(regs) were purified by the magnetic bead method, and their regulatory functions were assessed by monitoring carboxyfluorescein succinimidyl ester-labelled responder T cell proliferation. The Ca(2+) response of Fura-2-labelled cells was measured using a video image analysis system. To analyse the functions of T(regs) at the molecular level, we generated Jurkat Tet-On(®) clones with doxycycline (Dox)-induced forkhead box P3 (FOXP3) protein expression. RESULTS CD4(+) CD25(+) CD127(-/low) T(regs) from participants without asthma did not elicit Ca(2+) influx in response to TCR activation, exhibited little proliferation and suppressed proliferation of CD4(+) CD25(-) T cells. In contrast, under similar conditions, T(regs) from patients with asthma exhibited increased [Ca(2+)](i) and robust proliferation with partial loss of regulatory functions. FOXP3 protein levels in Tet-On(®) clones were high after both 2- and 5-day Dox treatment; however, 5-day cells were comparable with T(regs) from patients with asthma, whereas 2-day cells were similar to T(regs) from participants without asthma. Increasing [Ca(2+)](i) induced a high level of receptor for activated C kinase 1 (RACK1) expression in 5-day cells. CONCLUSIONS AND CLINICAL RELEVANCE We confirmed that T(regs) in patients with asthma are functionally impaired and that the abnormal regulatory functions of these cells can be analysed by [Ca(2+)](i) following TCR engagement. Furthermore, the impaired functioning of T(regs) evident in patients with asthma may be due to a high level of RACK1.
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Affiliation(s)
- T Negoro
- Department of Pharmacogenomics, Showa University School of Pharmacy, Shinagawa-ku, Tokyo, Japan
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Raedler D, Ballenberger N, Klucker E, Böck A, Otto R, Prazeres da Costa O, Holst O, Illig T, Buch T, von Mutius E, Schaub B. Identification of novel immune phenotypes for allergic and nonallergic childhood asthma. J Allergy Clin Immunol 2015; 135:81-91. [DOI: 10.1016/j.jaci.2014.07.046] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Revised: 07/16/2014] [Accepted: 07/22/2014] [Indexed: 10/24/2022]
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Abstract
The science of food allergy has been rapidly evolving before our eyes in the past half century. Like other allergic disorders, the prevalence of food allergies has dramatically increased, and coupled with the increased public awareness of anaphylaxis due to food allergy, this has driven an explosion in basic and clinical research in this extremely broad subject. Treatment of food allergies has evolved and practices such as food challenges have become an integral part of an allergy practice. The impact of the increase of food allergy has driven package labeling laws, legislation on emergency treatment availability in schools and other public places, and school policy. But to this day, our knowledge of the pathogenesis of food allergy is still incomplete. There are the most obvious IgE-mediated immediate hypersensitivity reactions, but then multiple previously unidentified conditions such as eosinophilic esophagitis, food protein-induced enterocolitis syndrome, milk protein allergy, food-induced atopic dermatitis, oral allergy syndrome, and others have complicated the diagnosis and management of many of our patients who are unable to tolerate certain foods. Many of these conditions are not IgE-mediated, but may be T cell-driven diseases. The role of T regulatory cells and immune tolerance and the newly discovered immunological role of vitamin D have shed light on the variable clinical presentation of food allergy and the development of new methods of immunotherapy in an example of bench-to-bedside research. Component-resolved diagnostic techniques have already begun to allow us to more precisely define the epitopes that are targeted in food allergic patients. The development of biological modulators, research on genomics and proteomics, and epigenetic techniques all offer promising avenues for new modes of therapy of food allergy in the twenty-first century.
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Affiliation(s)
- Patrick S C Leung
- Division of Rheumatology, Allergy and Clinical Immunology, University of California, 451 Health Sciences Drive, Suite 6510, Davis, CA, 95616, USA,
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Pellerin L, Jenks JA, Bégin P, Bacchetta R, Nadeau KC. Regulatory T cells and their roles in immune dysregulation and allergy. Immunol Res 2014; 58:358-68. [PMID: 24781194 PMCID: PMC4161462 DOI: 10.1007/s12026-014-8512-5] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The main function of the immune system is to fight off potential infections, but also to maintain its activity below a level that would trigger self-reactivity. Regulatory T cells (Tregs) such as forkhead box P3(+) (FOXP3) Tregs and type 1 regulatory T cells (Tr1) play an essential role in this active process, using several distinct suppressive mechanisms. A wide range of pathologies have been associated with altered Treg cell function. This is best exemplified by the impact of mutations of genes essential for Treg function and the associated autoimmune syndromes. This review summarizes the main features of different subtypes of Tregs and focuses on the clinical implications of their altered function in human studies. More specifically, we discuss abnormalities affecting FOXP3(+) Tregs and Tr1 cells that will lead to autoimmune manifestations and/or allergic reactions, and the potential therapeutic use of Tregs.
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Affiliation(s)
- Laurence Pellerin
- Division of Pediatric Immunology and Allergy, Stanford University, Stanford, CA 94305, USA
| | - Jennifer A. Jenks
- Division of Pediatric Immunology and Allergy, Stanford University, Stanford, CA 94305, USA
| | - Philippe Bégin
- Division of Pediatric Immunology and Allergy, Stanford University, Stanford, CA 94305, USA
| | - Rosa Bacchetta
- Division of Pediatric Immunology and Allergy, Stanford University, Stanford, CA 94305, USA
| | - Kari C. Nadeau
- Division of Pediatric Immunology and Allergy, Stanford University, Stanford, CA 94305, USA
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Chopra M, Riedel SS, Biehl M, Krieger S, von Krosigk V, Bäuerlein CA, Brede C, Jordan Garrote AL, Kraus S, Schäfer V, Ritz M, Mattenheimer K, Degla A, Mottok A, Einsele H, Wajant H, Beilhack A. Tumor necrosis factor receptor 2-dependent homeostasis of regulatory T cells as a player in TNF-induced experimental metastasis. Carcinogenesis 2013; 34:1296-303. [PMID: 23385062 DOI: 10.1093/carcin/bgt038] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The cytokine tumor necrosis factor (TNF) has pleiotropic functions both in normal physiology and disease. TNF signals by the virtue of two cell surface receptors, TNF receptor 1 (TNFR1) and TNF receptor 2 (TNFR2). Exogenous TNF promotes experimental metastasis in some models, yet the underlying mechanisms are poorly understood. To study the contribution of host TNFR1 and TNFR2 on tumor cell progression and metastasis, we employed a syngeneic B16F10 melanoma mouse model of lung metastasis combined with in vivo bioluminescence imaging. Treatment of tumor-bearing mice with recombinant human TNF resulted in a significant increase in tumor burden and metastatic foci. This correlated with an increase in pulmonary regulatory CD4(+)/Foxp3(+) T cells. TNF caused an expansion of regulatory T (Treg) cells in vitro in a TNFR2-dependent manner. To assess the contribution of immune cell expression of endogenous TNF and its two receptors on B16F10 metastasis, we generated bone marrow chimeras by reconstituting wild-type mice with bone marrow from different knockout mice. Loss of either TNF or TNFR2 on immune cells resulted in decreased B16F10 metastasis and lower numbers of Treg cells within the lungs of these animals. Selective depletion of Treg cells attenuated metastasis even in conjunction with TNF treatment. We propose a novel mechanism in which TNF activates TNFR2 on Treg cells and thereby expands this immunosuppressive immune cell population. Loss of either TNF or TNFR2 prevents the accumulation of Treg cells and results in a less tolerogenic environment, enabling the immune system to control B16F10 tumor metastasis and growth.
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Affiliation(s)
- Martin Chopra
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany
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Soyer OU, Akdis M, Ring J, Behrendt H, Crameri R, Lauener R, Akdis CA. Mechanisms of peripheral tolerance to allergens. Allergy 2013; 68:161-70. [PMID: 23253293 DOI: 10.1111/all.12085] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/26/2012] [Indexed: 12/24/2022]
Abstract
The immune system is regulated to protect the host from exaggerated stimulatory signals establishing a state of tolerance in healthy individuals. The disequilibrium in immune regulatory vs effector mechanisms results in allergic or autoimmune disorders in genetically predisposed subjects under certain environmental conditions. As demonstrated in allergen-specific immunotherapy and in the healthy immune response to high-dose allergen exposure models in humans, T regulatory cells are essential in the suppression of Th2-mediated inflammation, maintenance of immune tolerance, induction of the two suppressive cytokines interleukin-10 and transforming growth factor-β, inhibition of allergen-specific IgE, and enhancement of IgG4 and IgA. Also, suppression of dendritic cells, mast cells, and eosinophils contributes to the construction of peripheral tolerance to allergens. This review focuses on mechanisms of peripheral tolerance to allergens with special emphasis on recent developments in the area of immune regulation.
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Affiliation(s)
| | | | | | | | - R. Crameri
- Swiss Institute of Allergy and Asthma Research (SIAF); University of Zurich; Davos; Switzerland
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44
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Deppong CM, Green JM. Experimental advances in understanding allergic airway inflammation. Front Biosci (Schol Ed) 2013; 5:167-80. [PMID: 23277043 DOI: 10.2741/s364] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Asthma is largely an inflammatory disease, with the development of T cell mediated inflammation in the lung following exposure to allergen or other precipitating factors. Currently, the major therapies for this disease are directed either at relief of bronchoconstriction (ie beta-agonists) or are non-specific immunomodulators (ie, corticosteroids). While much attention has been paid to factors that regulate the initiation of an inflammatory response, chronic inflammation may also be due to defects in regulatory mechanisms that limit or terminate immune responses. In this review, we explore the elements controlling both the recruitment of T cells to the lung and their function. Possibilities for future therapeutic intervention are highlighted.
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Affiliation(s)
- Christine M Deppong
- Department of Internal Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
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Diao B, Liu Y, Zhang Y, Liu Q, Lu WJ, Xu G. Functional network analysis with the subcellular location and gene ontology information in human allergic asthma. Genet Test Mol Biomarkers 2012; 16:1287-92. [PMID: 23057572 DOI: 10.1089/gtmb.2011.0325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Asthma is a chronic inflammatory disease characterized by airway hyperresponsiveness, tissue remodeling, and airflow obstruction. The pathogenesis of asthma is only partly understood, and there is an urgent need for improved therapeutic strategies for this disease. The protein-protein interaction (PPI) network has considerable promise as a tool for discovery of novel asthma therapeutic targets and their relationship. Among the genes that have been identified by PPI studies, APP, CDKN1B, and SP3 displayed up-regulated expression. Further study depicted that CDKN1B localized in the nucleus or cytoplasm could interact with GRB2 and CASP8, but SP3 localized in the nucleus could interact with histone deacetylase 1, SP1, and E2F1. We anticipate that these types of analyses will provide considerable insight into asthma pathogenesis and will provide a wealth of new molecules for downstream analyses.
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Affiliation(s)
- Bo Diao
- Wuhan General Hospital Guangzhou Military Region, Wuhan, China
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46
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Dominguez-Amorocho O, Duarte S, González JM, Halpert E, Ortega MC, Rodríguez A, García E, Cuellar A. Differences in systemic and skin migrating-specific CD4 T cells in papular urticaria by flea bite. Int Arch Allergy Immunol 2012; 160:165-72. [PMID: 23018588 DOI: 10.1159/000339743] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2011] [Accepted: 05/24/2012] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Papular urticaria by flea bite is a chronic allergic condition in which clinical improvement may occur at the age of 7 years, thus representing a natural model of acquired immunologic tolerance in humans. The aim of this study was to characterize regulatory cells and specific responses to flea antigens of CD4(+) T lymphocytes expressing cutaneous migration markers in patients with papular urticaria caused by flea bite and with different disease evolution times. METHODS Cell populations were characterized by flow cytometry in samples from patients and healthy controls. Specific cell stimulation was performed with a complete flea body extract. The Mann-Whitney U test was used for comparisons. RESULTS Total dendritic cells were lower in patients than in healthy controls. No quantitative differences were found in CD4 regulatory T cells. CD4(+) T cells from patients produced more IL-4, lL-10, IL-17, and IFN-γ. Patients who experienced the onset of symptoms within the first 5 years of age showed a greater percentage of local (cutaneous lymphocyte antigen +) IL-4- and IL-17-producing cells, while patients who experienced the onset of symptoms after the age of 5 years had a higher percentage of systemic (cutaneous lymphocyte antigen -) IL-10-producing cells. CONCLUSION Analysis of the cellular immune response against whole flea antigen in patients with papular urticaria by flea bites suggests a possible participation of inflammatory cytokines in the skin reaction (Th17) and a systemic control mechanism (IL-10). This pattern of cytokine production in patients could be a consequence of an impaired dendritic cell population.
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Affiliation(s)
- Omar Dominguez-Amorocho
- Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia
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47
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Genc S, Eroglu H, Kucuksezer UC, Aktas-Cetin E, Gelincik A, Ustyol-Aycan E, Buyukozturk S, Deniz G. The decreased CD4+CD25+ FoxP3+ T cells in nonstimulated allergic rhinitis patients sensitized to house dust mites. J Asthma 2012; 49:569-74. [PMID: 22793523 DOI: 10.3109/02770903.2012.695418] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVE Regulatory (CD4(+)CD25(+)) T cells have been shown to play an important role in the development of allergic diseases. This study aims to investigate CD4(+)CD25(+) T cells, Forkhead box P3 (FoxP3(+) cells), and T-helper 1/T-helper 2 (Th1/Th2) cytokines in newly diagnosed allergic rhinitis (AR) patients. METHODS Altogether, 10 subjects with AR and 12 age-matched nonallergic healthy subjects were included in this study. CD4(+)CD25(+) T cells, FoxP3(+) T cells in peripheral blood mononuclear cells (PBMCs) were evaluated by flow cytometry, and the Th1/Th2 cytokine levels were determined by cytometric bead array immunoassay in both PBMC supernatants and nasal lavage fluids. RESULTS The percentage of CD4(+)CD25(+) T cells were significantly higher, whereas the percentage of FoxP3(+) cells were lower in AR patients compared with healthy subjects. In PBMC culture supernatants, interleukin-10 (IL-10) levels were significantly lower (p = .012), whereas IL-4, IL-5, and tumor necrosis factor-α (TNF-α) levels in nasal lavage fluids were higher in AR patients compared with healthy subjects (p = .026, p = .015, p = .03, respectively). CONCLUSIONS Our findings indicate that decrease in CD4(+)CD25(+)FoxP3(+) T cell fraction and diminished levels of IL-10 are noteworthy without allergen stimulation in house dust mite AR patients.
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Affiliation(s)
- Sema Genc
- Istanbul Faculty of Medicine, Department of Biochemistry, Istanbul University, Istanbul, Turkey
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Prevention and treatment of allergic inflammation by an Fcγ-Der f2 fusion protein in a murine model of dust mite-induced asthma. Immunol Res 2012; 52:276-83. [PMID: 22539132 DOI: 10.1007/s12026-012-8339-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The immunoglobulin E (IgE) high-affinity receptor FcεRI expressed on mast cells and basophils plays a critical role in triggering allergic disease. The co-aggregation of the FcεRI and FcγRIIb receptors is inhibitory to FcεRI signaling and holds great potential for the treatment of IgE-mediated allergies. In China, Dermatophagoides farinae is a common anaphylaxis trigger. Therefore, in this study, the FcγRIIb-mediated immunomodulating activity of recombinant Fcγ-Der f2 fusion protein was tested in a Der f2-allergic murine model. Following the treatment, bronchoalveolar lavage fluid (BALF) was collected to measure the expression of several Th1/Th2-type cytokines (IL-5, TNF-α, IL-12p70, IL-4, IL-10, IFN-γ and IL-18) and histamine, while blood was used to detect the specific IgE and IgG-types anti-Der f2 antibodies, for measurement. In contrast to the saline-treated allergic mice, the levels of Der f2-specific IgE, cytokines and histamine were lowered in the Fcγ-Der f2-treated allergic mice, in addition to the rare inflammatory cell infiltration in the airways and blood vessels revealed by histopathological examination. The recombinant Fcγ-Der f2 protein was demonstrated to function as an effective immunotherapeutic agent, suggesting that chimeric human Fcγ-allergen proteins could be used in the development of antigen-specific immunotherapy for human allergic diseases.
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Abstract
HDM allergy is associated with asthma, allergic rhinitis and atopic dermatitis. In many countries childhood asthma is predominantly found in HDM-allergic children with their probability of developing disease being proportional to their IgE antibody titers and the early development of Th2 responses. While the pathogenesis is complex and increasingly linked to infection the immunologically-based allergen immunotherapy and anti-IgE antibody therapy are highly beneficial. Immunotherapy could be a short-term treatment providing lifelong relief but the current regimens depend on repeated administration of allergen over years. Immunological investigations point to a contribution of responses outside the Th2 pathway and multiple potential but unproven control mechanisms. Over half of the IgE antibodies are directed to the group 1 and 2 allergens with most of remainder to the group 4, 5, 7 and 21 allergens. This hierarchy found in high and low responders provides a platform for introducing defined allergens into immunotherapy and defined reagents for investigation.
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Affiliation(s)
- Wayne R Thomas
- Centre for Child Health Research, University of Western Australia. wayne @ichr.uwa.edu.au
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50
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Lee WI, Yao TC, Yeh KW, Chen LC, Ou LS, Huang JL. Stronger Toll-like receptor 1/2, 4, and 7/8 but less 9 responses in peripheral blood mononuclear cells in non-infectious exacerbated asthmatic children. Immunobiology 2012; 218:192-200. [PMID: 22727330 DOI: 10.1016/j.imbio.2012.04.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2011] [Revised: 03/08/2012] [Accepted: 04/19/2012] [Indexed: 12/27/2022]
Abstract
Toll-like receptors (TLR) initiate innate and often affect adaptive immune response. This study aimed to determine if TLR response and T regulatory cell (Treg) function in peripheral blood mononuclear cells (PBMC) correlate with clinical severity in non-infectious asthma. TLR1-9 expression and representative response cytokine TNF-α, IL-6, and IFN-β secretions were analyzed after stimulation by TLR1-9 ligands from 17 non-infectious asthmatic children. TNF-α production was higher in TLR1/2 (median 385.4 vs. 250.3 pg/ml in 1 μg/ml Pam3CSK4, p=0.0078), TLR4 (2392.4 vs. 1355.9 in 1 μg/ml LPS; p=0.0005), and TLR7/8 (10,776.2 vs. 4237.0 pg/ml in 1 μg/ml R848, p=0.0079) of patients in exacerbation than those in convalescence and healthy controls despite equal TLR expression. TNF-α production stimulated by TLR9 agonist was significantly lower in exacerbation (17.7 vs. 34.9 pg/ml in 1 μg/ml ODN2216, p=0.0175), while IL-6 production had similar patterns but was significantly lower in TLR3 signaling (119.7 vs. 245.0 pg/ml in 0.1 μg/ml poly(I:C), p=0.0033). IFN-β production by TLR3 agonist also decreased in exacerbation but not statistically significant. Six older children showed decreased FOXP3 percentage in CD4+CD25(high) and decreased suppression capability in exacerbation but restored in stabilization (82.8% vs. 90.0%, p=0.0061 and 60.9% vs. 81.7%, p=0.0071; respectively). In conclusion, normalizing imbalanced TLR signaling and enhancing Treg cell capability may guide possible therapeutic strategies for non-infectious asthma in exacerbation.
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Affiliation(s)
- Wen-I Lee
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, Taiwan
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