1
|
Novel Immunomodulatory Therapies for Respiratory Pathologies. COMPREHENSIVE PHARMACOLOGY 2022. [PMCID: PMC8238403 DOI: 10.1016/b978-0-12-820472-6.00073-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
2
|
Asthma and COVID-19: Emphasis on Adequate Asthma Control. Can Respir J 2021; 2021:9621572. [PMID: 34457096 PMCID: PMC8397565 DOI: 10.1155/2021/9621572] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 07/18/2021] [Accepted: 08/13/2021] [Indexed: 12/15/2022] Open
Abstract
Asthmatics are at an increased risk of developing exacerbations after being infected by respiratory viruses such as influenza virus, parainfluenza virus, and human and severe acute respiratory syndrome coronaviruses (SARS-CoV). Asthma, especially when poorly controlled, is an independent risk factor for developing pneumonia. A subset of asthmatics can have significant defects in their innate, humoral, and cell-mediated immunity arms, which may explain the increased susceptibility to infections. Adequate asthma control is associated with a significant decrease in episodes of exacerbation. Because of their wide availability and potency to promote adequate asthma control, glucocorticoids, especially inhaled ones, are the cornerstone of asthma management. The current COVID-19 pandemic affects millions of people worldwide and possesses mortality several times that of seasonal influenza; therefore, it is necessary to revisit this subject. The pathogenesis of SARS-CoV-2, the virus that causes COVID-19, can potentiate the development of acute asthmatic exacerbation with the potential to worsen the state of chronic airway inflammation. The relationship is evident from several studies that show asthmatics experiencing a more adverse clinical course of SARS-CoV-2 infection than nonasthmatics. Recent studies show that dexamethasone, a potent glucocorticoid, and other inhaled corticosteroids significantly reduce morbidity and mortality among hospitalized COVID-19 patients. Hence, while we are waiting for more studies with higher level of evidence that further narrate the association between COVID-19 and asthma, we advise clinicians to try to achieve adequate disease control in asthmatics as it may reduce incidences and severity of exacerbations especially from SARS-CoV-2 infection.
Collapse
|
3
|
Pohlmeier L, Sonar SS, Rodewald H, Kopf M, Tortola L. Comparative analysis of the role of mast cells in murine asthma models using Kit-sufficient mast cell-deficient animals. Allergy 2021; 76:2030-2043. [PMID: 33559884 DOI: 10.1111/all.14765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 12/15/2020] [Accepted: 01/04/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Asthma is a frequent chronic disease that can potentially severely affect the respiratory capacity and well-being of patients. Mast cells (MCs) are regarded as major players in human asthma due to their capacity to release crucial inflammatory mediators following allergen exposure. However, unambiguous characterization of their role in animal models has long been hindered by the unavailability of specific MC-deficient models lacking confounding MC-unrelated effects. This study aims to examine the role of MCs in Kit-sufficient MC-deficient Cpa3Cre /+ mice. METHODS We used a variety of models of acute and chronic asthma employing distinct routes and regimes of sensitization. These sensitizations were done via the peritoneal cavity, the skin, or the lung. Additionally, different allergens, i.e. ovalbumin and house dust mite extract, were used. RESULTS Our results show that the absence of MCs had no impact on the severity of allergic airway inflammation in any of the tested mouse models, as measured by leukocyte infiltration in the airways, cytokine expression, antibody production, airway hyper-responsiveness and mucus production. CONCLUSION This indicates that MCs do not play a major role in murine allergic airway inflammation.
Collapse
Affiliation(s)
- Lea Pohlmeier
- Institute of Molecular Health Sciences ETH Zurich Zurich Switzerland
| | | | - Hans‐Reimer Rodewald
- Division for Cellular Immunology German Cancer Research Center Heidelberg Germany
| | - Manfred Kopf
- Institute of Molecular Health Sciences ETH Zurich Zurich Switzerland
| | - Luigi Tortola
- Institute of Molecular Health Sciences ETH Zurich Zurich Switzerland
| |
Collapse
|
4
|
Plaza J, Torres R, Urbano A, Picado C, de Mora F. In Vitro and In Vivo Validation of EP2-Receptor Agonism to Selectively Achieve Inhibition of Mast Cell Activity. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2020; 12:712-728. [PMID: 32400135 PMCID: PMC7225001 DOI: 10.4168/aair.2020.12.4.712] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 02/27/2020] [Accepted: 03/01/2020] [Indexed: 02/01/2023]
Abstract
Purpose Agonism of the prostaglandin E2 receptor, E-prostanoid receptor 2 (EP2), may represent an alternative protective mechanism in mast cell (MC)-mediated diseases. Previous studies have suggested that activation of the MC EP2 receptor prevents pathological changes in the murine models of allergic asthma. This work aimed to analytically validate the EP2 receptor on MCs as a therapeutic target. Methods Murine MC lines and primary cultures, and MCs bearing the human immunoglobulin E (IgE) receptor were subjected to IgE-mediated activation subsequent to incubation with selective EP2 agonists. Two molecularly unrelated agonists, butaprost and CP-533536, were tested either in vitro or in 2 in vivo models of allergy. Results The diverse range of MC populations was consistently inhibited through selective EP2 agonism in spite of exhibiting a heterogeneous phenotype. Such inhibition occurred in both mouse and human IgE (hIgE)-mediated activation. The use of molecularly unrelated selective EP2 agonists allowed for the confirmation of the specificity of this protective mechanism. This effect was further demonstrated in 2 in vivo murine models of allergy where MCs are a key to pathological changes: cutaneous anaphylaxis in a transgenic mouse model expressing the hIgE receptor and aeroallergen-induced murine model of asthma. Conclusions Selective EP2 agonism is a powerful pharmacological strategy to prevent MCs from being activated through IgE-mediated mechanisms and from causing deleterious effects. The MC EP2 receptor may be an effective pharmacological target in allergic and other MC-mediated conditions.
Collapse
Affiliation(s)
- Judith Plaza
- Department of Pharmacology, Therapeutics and Toxicology, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Rosa Torres
- Department of Pharmacology, Therapeutics and Toxicology, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Adrián Urbano
- Department of Pharmacology, Therapeutics and Toxicology, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - César Picado
- Department of Pneumology and Respiratory Allergy, Hospital Clínic i Universitari de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), CIBER de Enfermedades Respiratorias (CIBERES), Barcelona, Spain
| | - Fernando de Mora
- Department of Pharmacology, Therapeutics and Toxicology, Universitat Autònoma de Barcelona, Barcelona, Spain.
| |
Collapse
|
5
|
Role of Mast Cells and Type 2 Innate Lymphoid (ILC2) Cells in Lung Transplantation. J Immunol Res 2018; 2018:2785971. [PMID: 30510964 PMCID: PMC6232810 DOI: 10.1155/2018/2785971] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 08/10/2018] [Accepted: 09/14/2018] [Indexed: 01/10/2023] Open
Abstract
The multifunctional role of mast cells (MCs) in the immune system is complex and has not fully been explored. MCs reside in tissues and mucous membranes such as the lung, digestive tract, and skin which are strategically located at interfaces with the external environment. These cells, therefore, will encounter external stimuli and pathogens. MCs modulate both the innate and the adaptive immune response in inflammatory disorders including transplantation. MCs can have pro- and anti-inflammatory functions, thereby regulating the outcome of lung transplantation through secretion of mediators that allow interaction with other cell types, particularly innate lymphoid cells (ILC2). ILC2 cells are a unique population of hematopoietic cells that coordinate the innate immune response against a variety of threats including infection, tissue damage, and homeostatic disruption. In addition, MCs can modulate alloreactive T cell responses or assist in T regulatory (Treg) cell activity. This paper outlines the current understanding of the role of MCs in lung transplantation, with a specific focus on their interaction with ILC2 cells within the engrafted organ.
Collapse
|
6
|
Balbino B, Conde E, Marichal T, Starkl P, Reber LL. Approaches to target IgE antibodies in allergic diseases. Pharmacol Ther 2018; 191:50-64. [PMID: 29909239 DOI: 10.1016/j.pharmthera.2018.05.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2018] [Accepted: 05/08/2018] [Indexed: 12/26/2022]
Abstract
IgE is the antibody isotype found at the lowest concentration in the circulation. However IgE can undeniably play an important role in mediating allergic reactions; best exemplified by the clinical benefits of anti-IgE monoclonal antibody (omalizumab) therapy for some allergic diseases. This review will describe our current understanding of the interactions between IgE and its main receptors FcεRI and CD23 (FcεRII). We will review the known and potential functions of IgE in health and disease: in particular, its detrimental roles in allergic diseases and chronic spontaneous urticaria, and its protective functions in host defense against parasites and venoms. Finally, we will present an overview of the drugs that are in clinical development or have therapeutic potential for IgE-mediated allergic diseases.
Collapse
Affiliation(s)
- Bianca Balbino
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France; INSERM, U1222, Paris, France; Université Pierre et Marie Curie, Paris, France
| | - Eva Conde
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France; INSERM, U1222, Paris, France; Université Pierre et Marie Curie, Paris, France; Neovacs SA, Paris, France
| | - Thomas Marichal
- GIGA-Research and Faculty of Veterinary Medicine, University of Liege, 4000, Liege, Belgium; Walloon Excellence in Life Sciences and Biotechnology, Wallonia, Belgium
| | - Philipp Starkl
- CeMM, Research Center for Molecular Medicine of the Austrian Academy of Sciences, Austria; Department of Medicine I, Research Laboratory of Infection Biology, Medical University of Vienna, Vienna, Austria
| | - Laurent L Reber
- Institut Pasteur, Department of Immunology, Unit of Antibodies in Therapy and Pathology, Paris, France; INSERM, U1222, Paris, France.
| |
Collapse
|
7
|
Xue L, Geng Y, Li M, Jin YF, Ren HX, Li X, Wu F, Wang B, Cheng WY, Chen T, Chen YJ. Inhibitory effects of methamphetamine on mast cell activation and cytokine/chemokine production stimulated by lipopolysaccharide in C57BL/6J mice. Exp Ther Med 2018; 15:3544-3550. [PMID: 29545881 PMCID: PMC5841010 DOI: 10.3892/etm.2018.5837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 10/13/2017] [Indexed: 01/09/2023] Open
Abstract
Previous studies have demonstrated that methamphetamine (MA) influences host immunity; however, the effect of MA on lipopolysaccharide (LPS)-induced immune responses remains unknown. Mast cells (MCs) are considered to serve an important role in the innate and acquired immune response, but it remains unknown whether MA modulates MC activation and LPS-stimulated cytokine production. The present study aimed to investigate the effect of MA on LPS-induced MC activation and the production of MC-derived cytokines in mice. Markers for MC activation, including cluster of differentiation 117 and the type I high affinity immunoglobulin E receptor, were assessed in mouse intestines. Levels of MC-derived cytokines in the lungs and thymus were also examined. The results demonstrated that cytokines were produced in the bone marrow-derived mast cells (BMMCs) of mice. The present study demonstrated that MA suppressed the LPS-mediated MC activation in mouse intestines. MA also altered the release of MC cytokines in the lung and thymus following LPS stimulation. In addition, LPS-stimulated cytokines were decreased in the BMMCs of mice following treatment with MA. The present study demonstrated that MA may regulate LPS-stimulated MC activation and cytokine production.
Collapse
Affiliation(s)
- Li Xue
- Department of Immunology and Pathogenic Biology, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an, Shaanxi 710061, P.R. China
- Department of Laboratory, The Second Affiliated Hospital of Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yan Geng
- Department of Laboratory, The Second Affiliated Hospital of Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Ming Li
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Yao-Feng Jin
- Department of Pathology, The Second Affiliated Hospital Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710004, P.R. China
| | - Hui-Xun Ren
- Department of Immunology and Pathogenic Biology, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an, Shaanxi 710061, P.R. China
| | - Xia Li
- VIP Internal Medicine Department, Lanzhou University Second Hospital, Lanzhou, Gansu 730030, P.R. China
| | - Feng Wu
- Graduate Teaching and Experiment Centre, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an, Shaanxi 710061, P.R. China
| | - Biao Wang
- Department of Immunology and Pathogenic Biology, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an, Shaanxi 710061, P.R. China
| | - Wei-Ying Cheng
- Department of Immunology and Pathogenic Biology, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an, Shaanxi 710061, P.R. China
| | - Teng Chen
- Forensic Medicine College of Xi'an Jiaotong University, Key Laboratory of The Health Ministry for Forensic Medicine, Key Laboratory of The Ministry of Education for Environment and Genes Related to Diseases, Xi'an, Shaanxi 710061, P.R. China
| | - Yan-Jiong Chen
- Department of Immunology and Pathogenic Biology, Xi'an Jiaotong University School of Basic Medical Sciences, Xi'an, Shaanxi 710061, P.R. China
| |
Collapse
|
8
|
Garcia-Rodriguez KM, Goenka A, Alonso-Rasgado MT, Hernández-Pando R, Bulfone-Paus S. The Role of Mast Cells in Tuberculosis: Orchestrating Innate Immune Crosstalk? Front Immunol 2017; 8:1290. [PMID: 29089945 PMCID: PMC5650967 DOI: 10.3389/fimmu.2017.01290] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Accepted: 09/26/2017] [Indexed: 12/30/2022] Open
Abstract
Tuberculosis causes more annual deaths globally than any other infectious disease. However, progress in developing novel vaccines, diagnostics, and therapies has been hampered by an incomplete understanding of the immune response to Mycobacterium tuberculosis (Mtb). While the role of many immune cells has been extensively explored, mast cells (MCs) have been relatively ignored. MCs are tissue resident cells involved in defense against bacterial infections playing an important role mediating immune cell crosstalk. This review discusses specific interactions between MCs and Mtb, their contribution to both immunity and disease pathogenesis, and explores their role in orchestrating other immune cells against infections.
Collapse
Affiliation(s)
- Karen M. Garcia-Rodriguez
- Manchester Collaborative Centre for Inflammation Research, Faculty of Biology, Medicine and Health, School of Biological Sciences, Manchester, United Kingdom
- Faculty of Science and Engineering, School of Materials, University of Manchester, Manchester, United Kingdom
| | - Anu Goenka
- Manchester Collaborative Centre for Inflammation Research, Faculty of Biology, Medicine and Health, School of Biological Sciences, Manchester, United Kingdom
| | - Maria T. Alonso-Rasgado
- Faculty of Science and Engineering, School of Materials, University of Manchester, Manchester, United Kingdom
| | - Rogelio Hernández-Pando
- Departamento de Patología Experimental, Instituto Nacional de Ciencias Médicas y Nutrición “Salvador Zubiran”, Mexico City, Mexico
| | - Silvia Bulfone-Paus
- Manchester Collaborative Centre for Inflammation Research, Faculty of Biology, Medicine and Health, School of Biological Sciences, Manchester, United Kingdom
- Division of Musculoskeletal and Dermatological Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| |
Collapse
|
9
|
Bui TT, Piao CH, Song CH, Lee CH, Shin HS, Chai OH. Baicalein, wogonin, and Scutellaria baicalensis ethanol extract alleviate ovalbumin-induced allergic airway inflammation and mast cell-mediated anaphylactic shock by regulation of Th1/Th2 imbalance and histamine release. Anat Cell Biol 2017; 50:124-134. [PMID: 28713616 PMCID: PMC5509896 DOI: 10.5115/acb.2017.50.2.124] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 03/09/2017] [Accepted: 03/18/2017] [Indexed: 12/20/2022] Open
Abstract
Asthma is characterized by chronic inflammation, goblet cell hyperplasia, the aberrant production of the Th2 cytokines, and eosinophil infiltration into the lungs. In this study, we examined the effects of baicalein, wogonin, and Scutellaria baicalensis ethanol extract on ovalbumin (OVA)-induced asthma by evaluating Th1/Th2 cytokine levels, histopathologic analysis, and compound 48/80-induced systemic anaphylaxis and mast cell activation, focusing on the histamine release from rat peritoneal mast cells. Baicalein, wogonin, and S. baicalensis ethanol extract also decreased the number of inflammatory cells especially eosinophils and downregulated peribronchial and perivascular inflammation in the lungs of mice challenged by OVA. Baicalein, wogonin, and S. baicalensis ethanol extract significantly reduced the levels of tumor necrosis factor α, interleukin (IL)-1β, IL-4, IL-5 and the production of OVA-specific IgE and IgG1, and upregulated the level of interferon-γ and OVA-specific IgG2a. In addition, oral administration of baicalein, wogonin, and S. baicalensis ethanol extract inhibited compound 48/80-induced systemic anaphylaxis and plasma histamine release in mice. Moreover, baicalein, wogonin, and S. baicalensis ethanol extract suppressed compound 48/80-induced mast cell degranulation and histamine release from rat peritoneal mast cells. Conclusively, baicalein and wogonin as major flavonoids of S. baicalensis may have therapeutic potential for allergic asthma through modulation of Th1/Th2 cytokine imbalance and histamine release from mast cells.
Collapse
Affiliation(s)
- Thi Tho Bui
- Department of Anatomy, Chonbuk National University Medical School, Jeonju, Korea
| | - Chun Hua Piao
- Department of Anatomy, Chonbuk National University Medical School, Jeonju, Korea
| | - Chang Ho Song
- Department of Anatomy, Chonbuk National University Medical School, Jeonju, Korea.,Institute for Medical Sciences, Chonbuk National University Medical School, Jeonju, Korea
| | - Chang-Hyun Lee
- Department of Anatomy, College of Korean Medicine, Woosuk University, Samrye, Korea
| | - Hee Soon Shin
- Food Biotechnology Program, Korea University of Science and Technology, Daejeon, Korea.,Division of Nutrition and Metabolism Research, Korea Food Research Institute, Seongnam, Korea
| | - Ok Hee Chai
- Department of Anatomy, Chonbuk National University Medical School, Jeonju, Korea.,Institute for Medical Sciences, Chonbuk National University Medical School, Jeonju, Korea
| |
Collapse
|
10
|
Corren J. Inflammatory Disorders Associated with Allergy: Overview of Immunopathogenesis and Implications for Treatment. Immunol Allergy Clin North Am 2017; 37:233-246. [PMID: 28366474 DOI: 10.1016/j.iac.2017.01.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A number of chronic inflammatory diseases are associated with IgE-mediated immunologic hypersensitivity, including atopic dermatitis, chronic rhinosinusitis, and asthma. Pathogenetic studies of well-characterized patient groups has allowed investigators to more precisely define the molecular pathways involved in these diseases. Specific cytokines and chemokines, as well as other unique proteins, have now been identified in each of these common disorders and a number of medications are currently in development for inhibiting their actions. Continual refinement of our understanding of the pathogenesis of these diseases will undoubtedly yield increasingly precise, and potentially more effective, treatments.
Collapse
Affiliation(s)
- Jonathan Corren
- Department of Medicine, Section of Clinical Immunology and Allergy, David Geffen School of Medicine at UCLA, 10780 Santa Monica Boulevard, Suite 280, Los Angeles, CA 90025, USA.
| |
Collapse
|
11
|
Veerappan A, Thompson M, Savage AR, Silverman ML, Chan WS, Sung B, Summers B, Montelione KC, Benedict P, Groh B, Vicencio AG, Peinado H, Worgall S, Silver RB. Mast cells and exosomes in hyperoxia-induced neonatal lung disease. Am J Physiol Lung Cell Mol Physiol 2016; 310:L1218-32. [DOI: 10.1152/ajplung.00299.2015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 04/26/2016] [Indexed: 11/22/2022] Open
Abstract
Chronic lung disease of prematurity (CLD) is a frequent sequela of premature birth and oxygen toxicity is a major associated risk factor. Impaired alveolarization, scarring, and inflammation are hallmarks of CLD. Mast cell hyperplasia is a feature of CLD but the role of mast cells in its pathogenesis is unknown. We hypothesized that mast cell hyperplasia is a consequence of neonatal hyperoxia and contributes to CLD. Additionally, mast cell products may have diagnostic and prognostic value in preterm infants predisposed to CLD. To model CLD, neonatal wild-type and mast cell-deficient mice were placed in an O2 chamber delivering hyperoxic gas mixture [inspired O2 fraction (FiO2) of 0.8] (HO) for 2 wk and then returned to room air (RA) for an additional 3 wk. Age-matched controls were kept in RA (FiO2 of 0.21). Lungs from HO mice had increased numbers of mast cells, alveolar simplification and enlargement, and increased lung compliance. Mast cell deficiency proved protective by preserving air space integrity and lung compliance. The mast cell mediators β-hexosaminidase (β-hex), histamine, and elastase increased in the bronchoalveolar lavage fluid of HO wild-type mice. Tracheal aspirate fluids (TAs) from oxygenated and mechanically ventilated preterm infants were analyzed for mast cell products. In TAs from infants with confirmed cases of CLD, β-hex was elevated over time and correlated with FiO2. Mast cell exosomes were also present in the TAs. Collectively, these data show that mast cells play a significant role in hyperoxia-induced lung injury and their products could serve as potential biomarkers in evolving CLD.
Collapse
Affiliation(s)
- A. Veerappan
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York
| | - M. Thompson
- Department of Pediatrics, Weill Cornell Medicine, New York, New York
| | - A. R. Savage
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York
| | - M. L. Silverman
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York
| | - W. S. Chan
- Department of Pediatrics, Weill Cornell Medicine, New York, New York
| | - B. Sung
- Department of Genetic Medicine, Weill Cornell Medicine, New York, New York; and
| | - B. Summers
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York
| | - K. C. Montelione
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York
| | - P. Benedict
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York
| | - B. Groh
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York
| | - A. G. Vicencio
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, New York
| | - H. Peinado
- Department of Pediatrics, Weill Cornell Medicine, New York, New York
| | - S. Worgall
- Department of Pediatrics, Weill Cornell Medicine, New York, New York
- Department of Genetic Medicine, Weill Cornell Medicine, New York, New York; and
| | - R. B. Silver
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, New York
| |
Collapse
|
12
|
The Protective Effect of Naringin against Bleomycin-Induced Pulmonary Fibrosis in Wistar Rats. Pulm Med 2016; 2016:7601393. [PMID: 26977316 PMCID: PMC4764747 DOI: 10.1155/2016/7601393] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 12/23/2015] [Accepted: 01/14/2016] [Indexed: 12/22/2022] Open
Abstract
The aim of the current study was to investigate the protective effect of naringin on bleomycin-induced pulmonary fibrosis in rats. Twenty-four Wistar rats randomly divided into four groups (control, bleomycin alone, bleomycin + naringin 40, and bleomycin + naringin 80) were used. Rats were administered a single dose of bleomycin (5 mg/kg; via the tracheal cannula) alone or followed by either naringin 40 mg/kg (orally) or naringin 80 mg/kg (orally) or water (1 mL, orally) for 14 days. Rats and lung tissue were weighed to determine the lung index. TNF-α and IL-1β levels, hydroxyproline content, and malondialdehyde (MDA) levels were assayed. Glutathione peroxidase (GSH-Px) and superoxide dismutase (SOD) activities were determined. Tissue sections were stained with hematoxylin-eosin, Masson's trichrome, and 0.1% toluidine blue. TNF-α, IL-1β, and MDA levels and hydroxyproline content significantly increased (p < 0.01) and GPx and SOD activities significantly decreased in bleomycin group (p < 0.01). Naringin at a dose of 80 mg/kg body weight significantly decreased TNF-α and IL-1β activity, hydroxyproline content, and MDA level (p < 0.01) and increased GPx and SOD activities (p < 0.05). Histological evidence supported the results. These results show that naringin has the potential of reducing the toxic effects of bleomycin and may provide supportive therapy for conventional treatment methods for idiopathic pulmonary fibrosis.
Collapse
|
13
|
Muala A, Rankin G, Sehlstedt M, Unosson J, Bosson JA, Behndig A, Pourazar J, Nyström R, Pettersson E, Bergvall C, Westerholm R, Jalava PI, Happo MS, Uski O, Hirvonen MR, Kelly FJ, Mudway IS, Blomberg A, Boman C, Sandström T. Acute exposure to wood smoke from incomplete combustion--indications of cytotoxicity. Part Fibre Toxicol 2015; 12:33. [PMID: 26511835 PMCID: PMC4625445 DOI: 10.1186/s12989-015-0111-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 10/21/2015] [Indexed: 12/16/2022] Open
Abstract
Background Smoke from combustion of biomass fuels is a major risk factor for respiratory disease, but the underlying mechanisms are poorly understood. The aim of this study was to determine whether exposure to wood smoke from incomplete combustion would elicit airway inflammation in humans. Methods Fourteen healthy subjects underwent controlled exposures on two separate occasions to filtered air and wood smoke from incomplete combustion with PM1 concentration at 314 μg/m3 for 3 h in a chamber. Bronchoscopy with bronchial wash (BW), bronchoalveolar lavage (BAL) and endobronchial mucosal biopsies was performed after 24 h. Differential cell counts and soluble components were analyzed, with biopsies stained for inflammatory markers using immunohistochemistry. In parallel experiments, the toxicity of the particulate matter (PM) generated during the chamber exposures was investigated in vitro using the RAW264.7 macrophage cell line. Results Significant reductions in macrophage, neutrophil and lymphocyte numbers were observed in BW (p < 0.01, <0.05, <0.05, respectively) following the wood smoke exposure, with a reduction in lymphocytes numbers in BAL fluid (<0.01. This unexpected cellular response was accompanied by decreased levels of sICAM-1, MPO and MMP-9 (p < 0.05, <0.05 and <0.01). In contrast, significant increases in submucosal and epithelial CD3+ cells, epithelial CD8+ cells and submucosal mast cells (p < 0.01, <0.05, <0.05 and <0.05, respectively), were observed after wood smoke exposure. The in vitro data demonstrated that wood smoke particles generated under these incomplete combustion conditions induced cell death and DNA damage, with only minor inflammatory responses. Conclusions Short-term exposure to sooty PAH rich wood smoke did not induce an acute neutrophilic inflammation, a classic hallmark of air pollution exposure in humans. While minor proinflammatory lymphocytic and mast cells effects were observed in the bronchial biopsies, significant reductions in BW and BAL cells and soluble components were noted. This unexpected observation, combined with the in vitro data, suggests that wood smoke particles from incomplete combustion could be potentially cytotoxic. Additional research is required to establish the mechanism of this dramatic reduction in airway leukocytes and to clarify how this acute response contributes to the adverse health effects attributed to wood smoke exposure. Trial registration NCT01488500 Electronic supplementary material The online version of this article (doi:10.1186/s12989-015-0111-7) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Ala Muala
- Department of Public Health and Clinical Medicine, Division of Medicine/Respiratory Medicine, Umeå University, Umeå, Sweden
| | - Gregory Rankin
- Department of Public Health and Clinical Medicine, Division of Medicine/Respiratory Medicine, Umeå University, Umeå, Sweden
| | - Maria Sehlstedt
- Department of Public Health and Clinical Medicine, Division of Medicine/Respiratory Medicine, Umeå University, Umeå, Sweden
| | - Jon Unosson
- Department of Public Health and Clinical Medicine, Division of Medicine/Respiratory Medicine, Umeå University, Umeå, Sweden
| | - Jenny A Bosson
- Department of Public Health and Clinical Medicine, Division of Medicine/Respiratory Medicine, Umeå University, Umeå, Sweden
| | - Annelie Behndig
- Department of Public Health and Clinical Medicine, Division of Medicine/Respiratory Medicine, Umeå University, Umeå, Sweden
| | - Jamshid Pourazar
- Department of Public Health and Clinical Medicine, Division of Medicine/Respiratory Medicine, Umeå University, Umeå, Sweden
| | - Robin Nyström
- Department of Applied Physics and Electronics, Thermochemical Energy Conversion Laboratory, Umeå University, Umeå, Sweden
| | - Esbjörn Pettersson
- Department of Applied Physics and Electronics, Thermochemical Energy Conversion Laboratory, Umeå University, Umeå, Sweden
| | - Christoffer Bergvall
- Department of Environmental Science and Analytical Chemistry, Arrhenius Laboratory, Stockholm University, Stockholm, Sweden
| | - Roger Westerholm
- Department of Environmental Science and Analytical Chemistry, Arrhenius Laboratory, Stockholm University, Stockholm, Sweden
| | - Pasi I Jalava
- Department of Environmental Science, University of Eastern Finland, Kuopio, Finland
| | - Mikko S Happo
- Department of Environmental Science, University of Eastern Finland, Kuopio, Finland
| | - Oskari Uski
- Department of Environmental Science, University of Eastern Finland, Kuopio, Finland
| | | | - Frank J Kelly
- Environmental Research Group, MRC-PHE Centre for Environment and Health, King's College London, London, UK
| | - Ian S Mudway
- Environmental Research Group, MRC-PHE Centre for Environment and Health, King's College London, London, UK
| | - Anders Blomberg
- Department of Public Health and Clinical Medicine, Division of Medicine/Respiratory Medicine, Umeå University, Umeå, Sweden
| | - Christoffer Boman
- Department of Applied Physics and Electronics, Thermochemical Energy Conversion Laboratory, Umeå University, Umeå, Sweden
| | - Thomas Sandström
- Department of Public Health and Clinical Medicine, Division of Medicine/Respiratory Medicine, Umeå University, Umeå, Sweden.
| |
Collapse
|
14
|
Orai/CRACM1 and KCa3.1 ion channels interact in the human lung mast cell plasma membrane. Cell Commun Signal 2015; 13:32. [PMID: 26177720 PMCID: PMC4504158 DOI: 10.1186/s12964-015-0112-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2015] [Accepted: 07/09/2015] [Indexed: 11/23/2022] Open
Abstract
Background Orai/CRACM1 ion channels provide the major Ca2+ influx pathway for FcεRI-dependent human lung mast cell (HLMC) mediator release. The Ca2+-activated K+ channel KCa3.1 modulates Ca2+ influx and the secretory response through hyperpolarisation of the plasma membrane. We hypothesised that there is a close functional and spatiotemporal interaction between these Ca2+- and K+-selective channels. Results Activation of FcεRI-dependent HLMC KCa3.1 currents was dependent on the presence of extracellular Ca2+, and attenuated in the presence of the selective Orai blocker GSK-7975A. Currents elicited by the KCa3.1 opener 1-EBIO were also attenuated by GSK-7975A. The Orai1 E106Q dominant-negative mutant ablated 1-EBIO and FcεRI-dependent KCa3.1 currents in HLMCs. Orai1 but not Orai2 was shown to co-immunoprecipitate with KCa3.1 when overexpressed in HEK293 cells, and Orai1 and KCa3.1 were seen to co-localise in the HEK293 plasma membrane using confocal microscopy. Conclusion KCa3.1 activation in HLMCs is highly dependent on Ca2+ influx through Orai1 channels, mediated via a close spatiotemporal interaction between the two channels.
Collapse
|
15
|
Xue L, Li X, Ren HX, Wu F, Li M, Wang B, Chen FY, Cheng WY, Li JP, Chen YJ, Chen T. The dopamine D3 receptor regulates the effects of methamphetamine on LPS-induced cytokine production in murine mast cells. Immunobiology 2015; 220:744-52. [DOI: 10.1016/j.imbio.2014.12.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 12/20/2014] [Accepted: 12/23/2014] [Indexed: 12/21/2022]
|
16
|
Mast cells in airway diseases and interstitial lung disease. Eur J Pharmacol 2015; 778:125-38. [PMID: 25959386 DOI: 10.1016/j.ejphar.2015.04.046] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 04/01/2015] [Accepted: 04/07/2015] [Indexed: 12/31/2022]
Abstract
Mast cells are major effector cells of inflammation and there is strong evidence that mast cells play a significant role in asthma pathophysiology. There is also a growing body of evidence that mast cells contribute to other inflammatory and fibrotic lung diseases such as chronic obstructive pulmonary disease and idiopathic pulmonary fibrosis. This review discusses the role that mast cells play in airway diseases and highlights how mast cell microlocalisation within specific lung compartments and their cellular interactions are likely to be critical for their effector function in disease.
Collapse
|
17
|
Jungraithmayr W. The putative role of mast cells in lung transplantation. Am J Transplant 2015; 15:594-600. [PMID: 25693471 DOI: 10.1111/ajt.13126] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 11/04/2014] [Accepted: 11/25/2014] [Indexed: 01/25/2023]
Abstract
Mast cells (MCs) were primarily recognized as effector cells of allergy. These cells are acting predominantly at the interface between the host and the external environment, such as skin, gastrointestinal and the respiratory tract. Only recently, MCs have gained increased recognition as cells of functional plasticity with immune-regulatory properties that influence both the innate and the adaptive immune response in inflammatory disorders, cancer and transplantation. Through the secretion of both proinflammatory and antiinflammatory mediators, MCs can either ameliorate or deteriorate the course and outcome in lung transplantation. Recent research from other models recognized the immune-protective activity of MCs including its role as an important source of IL-10 and TGF-β for the modulation of alloreactive T cell responses or assistance in Treg activity. This paper summarizes the current understanding of MCs in lung transplantation and discusses MC-mediated immune-mechanisms by which the outcome of the engrafted organ is modulated.
Collapse
Affiliation(s)
- W Jungraithmayr
- Division of Thoracic Surgery, University Hospital Zurich, Zurich, Switzerland
| |
Collapse
|
18
|
Moiseeva EP, Straatman KR, Leyland ML, Bradding P. CADM1 controls actin cytoskeleton assembly and regulates extracellular matrix adhesion in human mast cells. PLoS One 2014; 9:e85980. [PMID: 24465823 PMCID: PMC3899107 DOI: 10.1371/journal.pone.0085980] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Accepted: 12/03/2013] [Indexed: 12/21/2022] Open
Abstract
CADM1 is a major receptor for the adhesion of mast cells (MCs) to fibroblasts, human airway smooth muscle cells (HASMCs) and neurons. It also regulates E-cadherin and alpha6beta4 integrin in other cell types. Here we investigated a role for CADM1 in MC adhesion to both cells and extracellular matrix (ECM). Downregulation of CADM1 in the human MC line HMC-1 resulted not only in reduced adhesion to HASMCs, but also reduced adhesion to their ECM. Time-course studies in the presence of EDTA to inhibit integrins demonstrated that CADM1 provided fast initial adhesion to HASMCs and assisted with slower adhesion to ECM. CADM1 downregulation, but not antibody-dependent CADM1 inhibition, reduced MC adhesion to ECM, suggesting indirect regulation of ECM adhesion. To investigate potential mechanisms, phosphotyrosine signalling and polymerisation of actin filaments, essential for integrin-mediated adhesion, were examined. Modulation of CADM1 expression positively correlated with surface KIT levels and polymerisation of cortical F-actin in HMC-1 cells. It also influenced phosphotyrosine signalling and KIT tyrosine autophosphorylation. CADM1 accounted for 46% of surface KIT levels and 31% of F-actin in HMC-1 cells. CADM1 downregulation resulted in elongation of cortical actin filaments in both HMC-1 cells and human lung MCs and increased cell rigidity of HMC-1 cells. Collectively these data suggest that CADM1 is a key adhesion receptor, which regulates MC net adhesion, both directly through CADM1-dependent adhesion, and indirectly through the regulation of other adhesion receptors. The latter is likely to occur via docking of KIT and polymerisation of cortical F-actin. Here we propose a stepwise model of adhesion with CADM1 as a driving force for net MC adhesion.
Collapse
Affiliation(s)
- Elena P. Moiseeva
- Institute for Lung Health, Dept. of Infection, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
- * E-mail:
| | - Kees R. Straatman
- Centre for Core Biotechnology Services, University of Leicester, Leicester, United Kingdom
| | - Mark L. Leyland
- Department of Biochemistry, University of Leicester, Leicester, United Kingdom
| | - Peter Bradding
- Institute for Lung Health, Dept. of Infection, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
| |
Collapse
|
19
|
A nebulized complex traditional Chinese medicine inhibits Histamine and IL-4 production by ovalbumin in guinea pigs and can stabilize mast cells in vitro. Altern Ther Health Med 2013; 13:174. [PMID: 23849630 PMCID: PMC3716888 DOI: 10.1186/1472-6882-13-174] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2013] [Accepted: 07/01/2013] [Indexed: 11/24/2022]
Abstract
Background Traditional Chinese medicines have been used for anti-asthma treatment for several centuries in many Asian countries, and have been shown to effectively relieve symptoms. Our previous study demonstrated that a complex traditional Chinese medicine (CTCM) administered in nebulized form through the intratracheal route is effective against early-phase air-flow obstruction and can inhibit IL-5 production in ovalbumin (OVA)-sensitized guinea pigs. However, the antiasthmatic mechanisms of CTCMs are still unclear. Methods In this study, we examined the underlying mechanism of a CTCM that we used in our previous study in order to ascertain its function in the early-phase response to OVA challenge. In each group, 10–12 unsensitized or OVA-sensitized guinea pigs were treated with nebulized CTCM before OVA challenge, and the airway responses of the animals to OVA were recorded. Bronchoalveolar lavage fluid (BALF) samples were collected 5 min after OVA challenge, and the histamine and IL-4 contents in the BALF were measured. P815 cells (a mouse mast cell line) were untreated or pretreated with CTCM or cromolyn sodium (a mast cell stabilizer), and incubated with Compound 48/80 (mast cell activator) for 9 hr. The levels of histamine and IL-4 released from the cells were quantified. Results We found that the inhibition of bronchoconstriction by the CTCM was attenuated by pretreatment with propranolol, suggesting that the CTCM has a bronchodilator effect that is associated with beta-adrenergic receptor. Our results also showed that the CTCM inhibited histamine and IL-4 secretion in the OVA-induced airway hypersensitivity in guinea pigs at 5 min post-OVA challenge, and in vitro study revealed that the CTCM is able to stabilize mast cells. Conclusion In conclusion, our results suggested that the CTCM is a kind of bronchodilator and also a mast cell stabilizer. Our findings provide useful information regarding the possible mechanism of the CTCM, and show its potential for application in the treatment of allergenic airway disease.
Collapse
|
20
|
Vukman KV, Ravidà A, Aldridge AM, O'Neill SM. Mannose receptor and macrophage galactose-type lectin are involved in Bordetella pertussis mast cell interaction. J Leukoc Biol 2013; 94:439-48. [PMID: 23794711 DOI: 10.1189/jlb.0313130] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Mast cells are crucial in the development of immunity against Bordetella pertussis, and the function of TLRs in this process has been investigated. Here, the interaction between mast cells and B. pertussis with an emphasis on the role of CLRs is examined. In this study, two CLRs, MGL and MR, were detected for the first time on the surface of mast cells. The involvement of MR and MGL in the stimulation of mast cells by heat-inactivated BP was investigated by the use of blocking antibodies and specific carbohydrate ligands. The cell wall LOS of BP was also isolated to explore its role in this interaction. Mast cells stimulated with heat-inactivated BP or BP LOS induced TNF-α, IL-6, and IFN-γ secretion, which was suppressed by blocking MR or MGL. Inhibition of CLRs signaling during BP stimulation affected the ability of mast cells to promote cytokine secretion in T cells but had no effect on the cell-surface expression of ICAM1. Blocking MR or MGL suppressed BP-induced NF-κB expression but not ERK phosphorylation. Syk was involved in the CLR-mediated activation of mast cells by BP. Bacterial recognition by immune cells has been predominantly attributed to TLRs; in this study, the novel role of CLRs in the BP-mast cell interaction is highlighted.
Collapse
Affiliation(s)
- Krisztina V Vukman
- Parasite Immune Modulation Group, School of Biotechnology, Faculty of Science and Health, Dublin City University, Glasnevin, Dublin, Ireland
| | | | | | | |
Collapse
|
21
|
Moiseeva EP, Roach KM, Leyland ML, Bradding P. CADM1 is a key receptor mediating human mast cell adhesion to human lung fibroblasts and airway smooth muscle cells. PLoS One 2013; 8:e61579. [PMID: 23620770 PMCID: PMC3631237 DOI: 10.1371/journal.pone.0061579] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Accepted: 03/11/2013] [Indexed: 02/05/2023] Open
Abstract
Background Mast cells (MCs) play a central role in the development of many diseases including asthma and pulmonary fibrosis. Interactions of human lung mast cells (HLMCs) with human airway smooth muscle cells (HASMCs) are partially dependent on adhesion mediated by cell adhesion molecule-1 (CADM1), but the adhesion mechanism through which HLMCs interact with human lung fibroblasts (HLFs) is not known. CADM1 is expressed as several isoforms (SP4, SP1, SP6) in HLMCs, with SP4 dominant. These isoforms differentially regulate HLMC homotypic adhesion and survival. Objective In this study we have investigated the role of CADM1 isoforms in the adhesion of HLMCs and HMC-1 cells to primary HASMCs and HLFs. Methods CADM1 overexpression or downregulation was achieved using adenoviral delivery of CADM1 short hairpin RNAs or isoform-specific cDNAs respectively. Results Downregulation of CADM1 attenuated both HLMC and HMC-1 adhesion to both primary HASMCs and HLFs. Overexpression of either SP1 or SP4 isoforms did not alter MC adhesion to HASMCs, whereas overexpression of SP4, but not SP1, significantly increased both HMC-1 cell and HLMC adhesion to HLFs. The expression level of CADM1 SP4 strongly predicted the extent of MC adhesion; linear regression indicated that CADM1 accounts for up to 67% and 32% of adhesion to HLFs for HMC-1 cells and HLMCs, respectively. HLFs supported HLMC proliferation and survival through a CADM1-dependent mechanism. With respect to CADM1 counter-receptor expression, HLFs expressed both CADM1 and nectin-3, whereas HASMCs expressed only nectin-3. Conclusion and Clinical Relevance Collectively these data indicate that the CADM1 SP4 isoform is a key receptor mediating human MC adhesion to HASMCs and HLFs. The differential expression of CADM1 counter-receptors on HLFs compared to HASMCs may allow the specific targeting of either HLMC-HLF or HLMC-HASMC interactions in the lung parenchyma and airways.
Collapse
Affiliation(s)
- Elena P. Moiseeva
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
| | - Katy M. Roach
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
| | - Mark L. Leyland
- Department of Biochemistry, University of Leicester, Leicester, United Kingdom
| | - Peter Bradding
- Institute for Lung Health, Department of Infection, Immunity and Inflammation, University of Leicester, Leicester, United Kingdom
- * E-mail:
| |
Collapse
|
22
|
Graham AC, Hilmer KM, Zickovich JM, Obar JJ. Inflammatory response of mast cells during influenza A virus infection is mediated by active infection and RIG-I signaling. THE JOURNAL OF IMMUNOLOGY 2013; 190:4676-84. [PMID: 23526820 DOI: 10.4049/jimmunol.1202096] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Influenza A virus (IAV) is a major respiratory pathogen of both humans and animals. The lung is protected from pathogens by alveolar epithelial cells, tissue-resident alveolar macrophages, dendritic cells, and mast cells. The role of alveolar epithelial cells, endothelial cells, and alveolar macrophages during IAV infection has been studied previously. In this study, we address the role of mast cells during IAV infection. Respiratory infection with A/WSN/33 causes significant disease and immunopathology in C57BL/6 mice but not in B6.Cg-Kit(W-sh) mice, which lack mast cells. During in vitro coculture, A/WSN/33 caused mast cells to release histamine, secrete cytokines and chemokines, and produce leukotrienes. Moreover, when mast cells were infected with IAV, the virus did not replicate within mast cells. Importantly, human H1N1, H3N2, and influenza B virus isolates also could activate mast cells in vitro. Mast cell production of cytokines and chemokines occurs in a RIG-I/MAVS-dependent mechanism; in contrast, histamine production occurred through a RIG-I/MAVS-independent mechanism. Our data highlight that, following IAV infection, the response of mast cells is controlled by multiple receptors. In conclusion, we identified a unique inflammatory cascade activated during IAV infection that could potentially be targeted to limit morbidity following IAV infection.
Collapse
Affiliation(s)
- Amy C Graham
- Department of Immunology and Infectious Diseases, Montana State University, Bozeman, MT 59718, USA
| | | | | | | |
Collapse
|
23
|
Sismanopoulos N, Delivanis DA, Mavrommati D, Hatziagelaki E, Conti P, Theoharides TC. Do mast cells link obesity and asthma? Allergy 2013; 68:8-15. [PMID: 23066905 DOI: 10.1111/all.12043] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2012] [Indexed: 12/13/2022]
Abstract
Asthma is a chronic inflammatory disease of the lungs. Both the number of cases and severity of asthma have been increasing without a clear explanation. Recent evidence suggests that obesity, which has also been increasing alarmingly, may worsen or precipitate asthma, but there is little evidence of how obesity may contribute to lung inflammation. We propose that mast cells are involved in both asthma and obesity by being the target and source of adipocytokines, 'alarmins' such as interleukin-9 (IL-9) and interleukin-33 (IL-33), and stress molecules including corticotropin-releasing hormone (CRH) and neurotensin (NT), secreted in response to the metabolic burden. In particular, CRH and NT have synergistic effects on mast cell secretion of vascular endothelial growth factor (VEGF). IL-33 augments VEGF release induced by substance P (SP) and tumor necrosis factor (TNF) release induced by NT. Both IL-9 and IL-33 also promote lung mast cell infiltration and augment allergic inflammation. These molecules are also expressed in human mast cells leading to autocrine effects. Obese patients are also less sensitive to glucocorticoids and bronchodilators. Development of effective mast cell inhibitors may be a novel approach for the management of both asthma and obesity. Certain flavonoid combinations may be a promising new treatment approach.
Collapse
Affiliation(s)
- N. Sismanopoulos
- Laboratory of Molecular Immunopharmacology and Drug Discovery; Department of Molecular Physiology and Pharmacology; Tufts University School of Medicine; Boston; MA; USA
| | - D.-A. Delivanis
- Laboratory of Molecular Immunopharmacology and Drug Discovery; Department of Molecular Physiology and Pharmacology; Tufts University School of Medicine; Boston; MA; USA
| | - D. Mavrommati
- Laboratory of Molecular Immunopharmacology and Drug Discovery; Department of Molecular Physiology and Pharmacology; Tufts University School of Medicine; Boston; MA; USA
| | - E. Hatziagelaki
- Second Department of Internal Medicine; Athens University Medical School; ‘Attikon’ General Hospital; Athens; Greece
| | - P. Conti
- Department of Oncology and Experimental Medicine; University of Chieti-Pescara; Chieti; Italy
| | | |
Collapse
|
24
|
Abstract
Immunoglobulin E (IgE) antibodies and mast cells have been so convincingly linked to the pathophysiology of anaphylaxis and other acute allergic reactions that it can be difficult to think of them in other contexts. However, a large body of evidence now suggests that both IgE and mast cells are also key drivers of the long-term pathophysiological changes and tissue remodeling associated with chronic allergic inflammation in asthma and other settings. Such potential roles include IgE-dependent regulation of mast-cell functions, actions of IgE that are largely independent of mast cells and roles of mast cells that do not directly involve IgE. In this review, we discuss findings supporting the conclusion that IgE and mast cells can have both interdependent and independent roles in the complex immune responses that manifest clinically as asthma and other allergic disorders.
Collapse
Affiliation(s)
- Stephen J Galli
- Department of Pathology, Stanford University School of Medicine, California, USA.
| | | |
Collapse
|
25
|
Contribution of stress to asthma worsening through mast cell activation. Ann Allergy Asthma Immunol 2012; 109:14-9. [PMID: 22727152 DOI: 10.1016/j.anai.2012.03.003] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2011] [Revised: 02/22/2012] [Accepted: 03/04/2012] [Indexed: 12/12/2022]
Abstract
OBJECTIVE To review the available evidence linking stress to asthma and to investigate whether mast cells contribute to the effect of stress through activation by corticotropin-releasing hormone (CRH). DATA SOURCE The PubMed database was searched for articles (1998-2011) using the keywords anxiety, asthma, exacerbation, inflammation, mast cells, socioeconomic status, stress, violence, and worsening. STUDY SELECTION Articles were selected based on their relevance to the topic, with emphasis on clinical or epidemiologic data linking stress to asthma and studies that offered possible explanations for how stress may affect asthma. RESULTS Many articles point to an association between stress (socioeconomic status, interpersonal conflicts, emotional distress, terrorism) and asthma exacerbations but without any distinct pathogenetic mechanism. A few articles have reported reduced circulating cortisol and/or sensitivity to corticosteroids. We propose that mast cells, known to be involved in the pathophysiology of asthma, can be activated by CRH, which is secreted under stress in the lungs, leading to selective release of proinflammatory mediators. This effect may be augmented by neuropeptides or cytokines. CRH also reduces T-regulatory cell production of interleukin 10, which in known to inhibit allergic mast cell activation. CONCLUSION More studies are required to investigate lung levels of CRH and selective mast cell mediators. Reducing stress and using CRH receptor antagonists and/or mast cell blockers may serve as possible new therapeutic approaches for asthma.
Collapse
|
26
|
CADM1 isoforms differentially regulate human mast cell survival and homotypic adhesion. Cell Mol Life Sci 2012; 69:2751-64. [PMID: 22438059 PMCID: PMC3400039 DOI: 10.1007/s00018-012-0948-y] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Revised: 01/25/2012] [Accepted: 02/20/2012] [Indexed: 12/28/2022]
Abstract
Cell adhesion molecule 1 (CADM1), expressed by human lung mast cells (HLMCs), mediates their adhesion to airway smooth muscle (ASM), and contributes to ASM-dependent HLMC proliferation and survival. CADM1 is expressed in alternatively spliced isoforms, but those present in HLMCs and their function are not known. We cloned three functional and one cryptic non-functional isoform with alternative splicing between exons 7/11 and 1/2, respectively, from HLMCs and human MC lines (HMC-1 and LAD2). Differentiated HLMCs and LAD2 cells expressed the functional isoform SP4 containing exons 7/8/11 (~80% of clones), as well as SP1 (exons 7/8/9/11) and a novel SP6 (exons 7/8/9/10/11). In contrast, immature HMC-1 cells expressed only functional SP4. SP4 overexpression in HMC-1 cells and HLMCs augmented homotypic adhesion to a greater extent than SP1 in various conditions. In contrast, CADM1 downregulation abolished homotypic adhesion, indicating that CADM1 is the sole receptor mediating mast cell aggregation. CADM1-mediated adhesion was enhanced by the presence of cell survival factors. SP1 overexpression in HMC-1 cells compromised survival compared to SP4 overexpression or control. CADM1 downregulation resulted in reduced viability and decreased expression of the pro-survival protein Mcl-1L, but not Blc-2 or Bcl-XL, and increased caspase-3/7 activity in both HMC-1 cells and HLMCs. This coincided with decreased basal Kit levels in HLMCs. In summary, human MCs express multiple CADM1 isoforms which exhibit differential regulation of survival and homotypic adhesion. The most highly expressed SP4 isoform is likely to contribute to MC aggregation and longevity in mastocytosis, and augment the pathophysiology of allergic diseases.
Collapse
|
27
|
Abstract
Mast cells are multifunctional cells that initiate not only IgE-dependent allergic diseases but also play a fundamental role in innate and adaptive immune responses to microbial infection. They are also thought to play a role in angiogenesis, tissue remodeling, wound healing, and tumor repression or growth. The broad scope of these physiologic and pathologic roles illustrates the flexible nature of mast cells, which is enabled in part by their phenotypic adaptability to different tissue microenvironments and their ability to generate and release a diverse array of bioactive mediators in response to multiple types of cell-surface and cytosolic receptors. There is increasing evidence from studies in cell cultures that release of these mediators can be selectively modulated depending on the types or groups of receptors activated. The intent of this review is to foster interest in the interplay among mast cell receptors to help understand the underlying mechanisms for each of the immunological and non-immunological functions attributed to mast cells. The second intent of this review is to assess the pathophysiologic roles of mast cells and their products in health and disease. Although mast cells have a sufficient repertoire of bioactive mediators to mount effective innate and adaptive defense mechanisms against invading microorganisms, these same mediators can adversely affect surrounding tissues in the host, resulting in autoimmune disease as well as allergic disorders.
Collapse
Affiliation(s)
- Alasdair M Gilfillan
- Laboratory of Allergic Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892-1881, USA.
| | | |
Collapse
|
28
|
Mast cell biology: introduction and overview. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2011; 716:2-12. [PMID: 21713648 DOI: 10.1007/978-1-4419-9533-9_1] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
In recent years, the field of mast cell biology has expanded well beyond the boundaries of atopic disorders and anaphy laxis, on which it has been historically focused. The biochemical and signaling events responsible for the development and regulation of mast cells has been increasingly studied, aided in large part by novel breakthroughs in laboratory techniques used to study these cells. The result of these studies has been a more comprehensive definition of mast cells that includes added insights to their overall biology as well as the various disease states that can now be traced to defects in mast cells. This introductory chapter outlines and highlights the various topics of mast cell biology that will be discussed in further detail in subsequent chapters.
Collapse
|