1
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Yoshida K, Morishima Y, Ishii Y, Mastuzaka T, Shimano H, Hizawa N. Abnormal saturated fatty acids and sphingolipids metabolism in asthma. Respir Investig 2024; 62:526-530. [PMID: 38640569 DOI: 10.1016/j.resinv.2024.04.006] [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: 02/08/2024] [Revised: 03/26/2024] [Accepted: 04/11/2024] [Indexed: 04/21/2024]
Abstract
Recent advances in fatty acid analysis have highlighted the links between lipid disruption and disease development. Lipid abnormalities are well-established risk factors for many of the most common chronic illnesses, and their involvement in asthma is also becoming clear. Here, we review research demonstrating the role of abnormal lipid metabolism in asthma, with a focus on saturated fatty acids and sphingolipids. High levels of palmitic acid, the most abundant saturated fatty acid in the human body, have been found in the airways of asthmatic patients with obesity, and were shown to worsen eosinophilic airway inflammation in asthma model mice on a high-fat diet. Aside from being a building block of longer-chain fatty acids, palmitic acid is also the starting point for de novo synthesis of ceramides, a class of sphingolipids. We outline the three main pathways for the synthesis of ceramides, which have been linked to the severity of asthma and act as precursors for the dynamic lipid mediator sphingosine 1-phosphate (S1P). S1P signaling is involved in allergen-induced eosinophilic inflammation, airway hyperresponsiveness, and immune-cell trafficking. A recent study of mice with mutations for the elongation of very long-chain fatty acid family member 6 (Elovl6), an enzyme that elongates fatty acid chains, has highlighted the potential role of palmitic acid composition, and thus lipid balance, in the pathophysiology of allergic airway inflammation. Elovl6 may be a potential therapeutic target in severe asthma.
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Affiliation(s)
- Kazufumi Yoshida
- Department of Pulmonary Medicine, Institute of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan.
| | - Yuko Morishima
- Department of Pulmonary Medicine, Institute of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Yukio Ishii
- Department of Respiratory Medicine, National Hospital Organization Ibaraki Higashi National Hospital, 825 Terunuma, Tokai-Mura, Naka-Gun, Ibaraki, 319-1113, Japan
| | - Takashi Mastuzaka
- Department of Endocrinology and Metabolism, Institute of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Hitoshi Shimano
- Department of Endocrinology and Metabolism, Institute of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Nobuyuki Hizawa
- Department of Pulmonary Medicine, Institute of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8575, Japan
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2
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Kan LLY, Li P, Hon SSM, Lai AYT, Li A, Wong KCY, Huang D, Wong CK. Deciphering the Interplay between the Epithelial Barrier, Immune Cells, and Metabolic Mediators in Allergic Disease. Int J Mol Sci 2024; 25:6913. [PMID: 39000023 PMCID: PMC11241838 DOI: 10.3390/ijms25136913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2024] [Revised: 06/19/2024] [Accepted: 06/20/2024] [Indexed: 07/14/2024] Open
Abstract
Chronic exposure to harmful pollutants, chemicals, and pathogens from the environment can lead to pathological changes in the epithelial barrier, which increase the risk of developing an allergy. During allergic inflammation, epithelial cells send proinflammatory signals to group 2 innate lymphoid cell (ILC2s) and eosinophils, which require energy and resources to mediate their activation, cytokine/chemokine secretion, and mobilization of other cells. This review aims to provide an overview of the metabolic regulation in allergic asthma, atopic dermatitis (AD), and allergic rhinitis (AR), highlighting its underlying mechanisms and phenotypes, and the potential metabolic regulatory roles of eosinophils and ILC2s. Eosinophils and ILC2s regulate allergic inflammation through lipid mediators, particularly cysteinyl leukotrienes (CysLTs) and prostaglandins (PGs). Arachidonic acid (AA)-derived metabolites and Sphinosine-1-phosphate (S1P) are significant metabolic markers that indicate immune dysfunction and epithelial barrier dysfunction in allergy. Notably, eosinophils are promoters of allergic symptoms and exhibit greater metabolic plasticity compared to ILC2s, directly involved in promoting allergic symptoms. Our findings suggest that metabolomic analysis provides insights into the complex interactions between immune cells, epithelial cells, and environmental factors. Potential therapeutic targets have been highlighted to further understand the metabolic regulation of eosinophils and ILC2s in allergy. Future research in metabolomics can facilitate the development of novel diagnostics and therapeutics for future application.
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Affiliation(s)
- Lea Ling-Yu Kan
- Institute of Chinese Medicine, State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Hong Kong, China
| | - Peiting Li
- Institute of Chinese Medicine, State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Hong Kong, China
| | - Sharon Sze-Man Hon
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Andrea Yin-Tung Lai
- Institute of Chinese Medicine, State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Hong Kong, China
| | - Aixuan Li
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Katie Ching-Yau Wong
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Danqi Huang
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Chun-Kwok Wong
- Institute of Chinese Medicine, State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants, The Chinese University of Hong Kong, Hong Kong, China
- Department of Chemical Pathology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Li Dak Sum Yip Yio Chin R & D Centre for Chinese Medicine, The Chinese University of Hong Kong, Hong Kong, China
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3
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Sethi GS, Gracias D, Croft M. Contribution of circulatory cells to asthma exacerbations and lung tissue-resident CD4 T cell memory. Front Immunol 2022; 13:951361. [PMID: 35936001 PMCID: PMC9353789 DOI: 10.3389/fimmu.2022.951361] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 06/24/2022] [Indexed: 11/13/2022] Open
Abstract
Tissue-resident memory CD4 T cells (Trm) are thought to be a major contributor to asthma relapse, but the role of circulatory T cells in asthma exacerbations or to maintaining the population of lung Trm cells is not fully understood. Here, we used a house dust mite allergen-based murine model of asthma relapse, and monitored the development of lung effector/Trm phenotype CD44hiCD62LloCD69+ CD4 T cells. To determine the contribution of circulatory cells, mice were treated with FTY720, to block lymphocyte egress from lymph nodes. Inhibiting the primary migration of circulatory cells to the lungs mitigated the accumulation and expansion of allergen-driven Trm phenotype cells, but subsequent allergen challenges still resulted in strong lung inflammation and Trm cell accumulation. This was blocked if FTY720 was also given at the time of allergen re-exposure, showing that new circulatory cells contributed to this lung memory/effector T cell pool at times well after the initial sensitization. However, once lung-localized Trm cells developed at high frequency, circulatory cells were not required to maintain this population following allergen re-encounter, even though circulatory cells still were major contributors to the overall asthmatic lung inflammatory response. Our results suggest that strategies that target the response of circulatory memory T cells and Trm cells together might be required to strongly inhibit T cell reactivity to airborne allergens and to limit exacerbations of asthma and their reoccurrence, but the contribution of circulatory T cells might vary in long-term asthmatics possessing a large stable Trm cell population in the lungs.
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Affiliation(s)
- Gurupreet S. Sethi
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA, United States
| | - Donald Gracias
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA, United States
| | - Michael Croft
- Center for Autoimmunity and Inflammation, La Jolla Institute for Immunology, La Jolla, CA, United States
- Department of Medicine, University of California San Diego, La Jolla, CA, United States
- *Correspondence: Michael Croft,
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4
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Díaz-Perales A, Escribese MM, Garrido-Arandia M, Obeso D, Izquierdo-Alvarez E, Tome-Amat J, Barber D. The Role of Sphingolipids in Allergic Disorders. FRONTIERS IN ALLERGY 2022; 2:675557. [PMID: 35386967 PMCID: PMC8974723 DOI: 10.3389/falgy.2021.675557] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 05/10/2021] [Indexed: 12/12/2022] Open
Abstract
Allergy is defined as a complex chronic inflammatory condition in which genetic and environmental factors are implicated. Sphingolipids are involved in multiple biological functions, from cell membrane components to critical signaling molecules. To date, sphingolipids have been studied in different human pathologies such as neurological disorders, cancer, autoimmunity, and infections. Sphingolipid metabolites, in particular, ceramide and sphingosine-1-phosphate (S1P), regulate a diverse range of cellular processes that are important in immunity and inflammation. Moreover, variations in the sphingolipid concentrations have been strongly associated with allergic diseases. This review will focus on the role of sphingolipids in the development of allergic sensitization and allergic inflammation through the activation of immune cells resident in tissues, as well as their role in barrier remodeling and anaphylaxis. The knowledge gained in this emerging field will help to develop new therapeutic options for allergic disorders.
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Affiliation(s)
- Araceli Díaz-Perales
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - Maria M Escribese
- Basic Medical Sciences Department, Facultad de Medicina, Instituto de Medicina Molecular Aplicada (IMMA), Universidad San Pablo CEU, CEU Universities, Madrid, Spain
| | - María Garrido-Arandia
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - David Obeso
- Centro de Excelencia en Metabolómica y Bioanálisis (CEMBIO), Facultad de Farmacia, Universidad San Pablo CEU, CEU Universities, Madrid, Spain
| | - Elena Izquierdo-Alvarez
- Basic Medical Sciences Department, Facultad de Medicina, Instituto de Medicina Molecular Aplicada (IMMA), Universidad San Pablo CEU, CEU Universities, Madrid, Spain
| | - Jaime Tome-Amat
- Centro de Biotecnología y Genómica de Plantas (CBGP), Universidad Politécnica de Madrid (UPM), Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - Domingo Barber
- Basic Medical Sciences Department, Facultad de Medicina, Instituto de Medicina Molecular Aplicada (IMMA), Universidad San Pablo CEU, CEU Universities, Madrid, Spain
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5
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Lysophospholipids in Lung Inflammatory Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1303:373-391. [PMID: 33788203 DOI: 10.1007/978-3-030-63046-1_20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The lysophospholipids (LPLs) belong to a group of bioactive lipids that play pivotal roles in several physiological and pathological processes. LPLs are derivatives of phospholipids and consist of a single hydrophobic fatty acid chain, a hydrophilic head, and a phosphate group with or without a large molecule attached. Among the LPLs, lysophosphatidic acid (LPA) and sphingosine-1-phosphate (S1P) are the simplest, and have been shown to be involved in lung inflammatory symptoms and diseases such as acute lung injury, asthma, and chronic obstructive pulmonary diseases. G protein-coupled receptors (GPCRs) mediate LPA and S1P signaling. In this chapter, we will discuss on the role of LPA, S1P, their metabolizing enzymes, inhibitors or agonists of their receptors, and their GPCR-mediated signaling in lung inflammatory symptoms and diseases, focusing specially on acute respiratory distress syndrome, asthma, and chronic obstructive pulmonary disease.
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6
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Feng X, Li L, Feng J, He W, Li N, Shi T, Jie Z, Su X. Vagal-α7nAChR signaling attenuates allergic asthma responses and facilitates asthma tolerance by regulating inflammatory group 2 innate lymphoid cells. Immunol Cell Biol 2020; 99:206-222. [PMID: 32893406 DOI: 10.1111/imcb.12400] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/12/2020] [Accepted: 09/04/2020] [Indexed: 12/20/2022]
Abstract
Disorders of immune tolerance may lead to allergic asthma. Group 2 innate lymphoid cells (ILC2s) and inflammatory ILC2s (iILC2s) are key players in asthma. The vagus nerve innervating the airways releases acetylcholine or neuropeptides (i.e. calcitonin gene-related peptide) via pulmonary C-fibers (PCFs), which could regulate ILC2 activity upon binding the α7 nicotinic acetylcholine receptor (α7nAChR, coded by Chrna7) or neuropeptide receptors. Whether and how α7nAChR and PCFs regulate asthma and the formation of asthma tolerance via ILC2s or iILC2s are poorly understood. We used vagotomized, PCF degeneration and Chrna7 knockout mice to investigate ovalbumin (OVA)-induced asthma and oral OVA feeding-induced asthma tolerance. Our results revealed that vagotomy could generally suppress lung ILC2s and iILC2s, which mitigated allergic asthma responses but disrupted asthmatic tolerance. Removal of neuropeptides by PCF degeneration also reduced lung ILC2s and iILC2s, attenuating asthma responses, but did not affect asthma tolerance. In comparison, deletion of Chrna7 increased resident ILC2s and trafficking iILC2s in the lung, worsened allergic inflammation and disrupted oral tolerance. Mechanistically, deletion of Chrna7 in asthma-tolerant conditions upregulated T helper 2 cytokine- (Il4, Il13 and Il25) and sphingosine-1-phosphate (S1P)-related genes (S1pr1 and Sphk1). Blockade of S1P reduced iILC2 recruitment into asthmatic lungs. Our work is the first to demonstrate that vagal-α7nAChR signaling engaging with iILC2s and S1P not only alleviates asthma but also facilitates asthma tolerance. These findings may provide a novel therapeutic target for attenuating asthma by enhancing asthmatic tolerance.
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Affiliation(s)
- Xintong Feng
- Department of Pulmonary and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
| | - Ling Li
- Unit of Respiratory Infection and Immunity, Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Jingjing Feng
- Department of Pulmonary and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
| | - Wei He
- Department of Pulmonary and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
| | - Na Li
- Department of Pulmonary and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
| | - Tianyun Shi
- Department of Pulmonary and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
| | - Zhijun Jie
- Department of Pulmonary and Critical Care Medicine, Shanghai Fifth People's Hospital, Fudan University, Shanghai, China
| | - Xiao Su
- Unit of Respiratory Infection and Immunity, Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
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7
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Pan Y, Liu L, Zhang Q, Shi W, Feng W, Wang J, Wang Q, Li S, Li M. Activation of AMPK suppresses S1P-induced airway smooth muscle cells proliferation and its potential mechanisms. Mol Immunol 2020; 128:106-115. [PMID: 33126079 DOI: 10.1016/j.molimm.2020.09.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 09/27/2020] [Accepted: 09/28/2020] [Indexed: 01/13/2023]
Abstract
The aims of the present study were to investigate the signaling mechanisms for sphingosine-1-phosphate (S1P)-induced airway smooth muscle cells (ASMCs) proliferation and to explore the effect of activation of adenosine monophosphate-activated protein kinase (AMPK) on S1P-induced ASMCs proliferation and its underlying mechanisms. S1P phosphorylated signal transducer and activator of transcription 3 (STAT3) through binding to S1PR2/3, and this further sequentially up-regulated polo-like kinase 1 (PLK1) and inhibitor of differentiation 2 (ID2) protein expression. Pretreatment of cells with S1PR2 antagonist JTE-013, S1PR3 antagonist CAY-10444, knockdown of STAT3, PLK1 and ID2 attenuated S1P-triggered ASMCs proliferation. In addition, activation of AMPK by metformin inhibited S1P-induced ASMCs proliferation by suppressing STAT3 phosphorylation and therefore suppression of PLK1 and ID2 protein expression. Our study suggests that S1P promotes ASMCs proliferation by stimulating S1PR2/3/STAT3/PLK1/ID2 axis, and activation of AMPK suppresses ASMCs proliferation by targeting on STAT3 signaling pathway. Activation of AMPK might benefit asthma by inhibiting airway remodeling.
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Affiliation(s)
- Yilin Pan
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China; Department of Pulmonary and Critical Care Medicine, Shanghai General Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Lu Liu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Qianqian Zhang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Wenhua Shi
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Wei Feng
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Jian Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Qingting Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Shaojun Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Manxiang Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, China.
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8
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Hwang JY, Silva-Sanchez A, Carragher DM, Garcia-Hernandez MDLL, Rangel-Moreno J, Randall TD. Inducible Bronchus-Associated Lymphoid Tissue (iBALT) Attenuates Pulmonary Pathology in a Mouse Model of Allergic Airway Disease. Front Immunol 2020; 11:570661. [PMID: 33101290 PMCID: PMC7545112 DOI: 10.3389/fimmu.2020.570661] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 08/24/2020] [Indexed: 01/09/2023] Open
Abstract
Inducible Bronchus Associated Lymphoid Tissue (iBALT) is an ectopic lymphoid tissue associated with severe forms of chronic lung diseases, including chronic obstructive pulmonary disease, rheumatoid lung disease, hypersensitivity pneumonitis and asthma, suggesting that iBALT may exacerbate these clinical conditions. However, despite the link between pulmonary pathology and iBALT formation, the role of iBALT in pathogenesis remains unknown. Here we tested whether the presence of iBALT in the lung prior to sensitization and challenge with a pulmonary allergen altered the biological outcome of disease. We found that the presence of iBALT did not exacerbate Th2 responses to pulmonary sensitization with ovalbumin. Instead, we found that mice with iBALT exhibited delayed Th2 accumulation in the lung, reduced eosinophil recruitment, reduced goblet cell hyperplasia and reduced mucus production. The presence of iBALT did not alter Th2 priming, but instead delayed the accumulation of Th2 cells in the lung following challenge and altered the spatial distribution of T cells in the lung. These results suggest that the formation of iBALT and sequestration of effector T cells in the context of chronic pulmonary inflammation may be a mechanism by which the immune system attenuates pulmonary inflammation and prevents excessive pathology.
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Affiliation(s)
- Ji Young Hwang
- Division of Clinical Immunology and Rheumatology, The Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States.,Department of Microbiology and Immunology, University of Rochester, Rochester, NY, United States
| | - Aaron Silva-Sanchez
- Division of Clinical Immunology and Rheumatology, The Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | | | - Maria de la Luz Garcia-Hernandez
- Division of Allergy Immunology and Rheumatology, The Department of Medicine, University of Rochester, Rochester, NY, United States
| | - Javier Rangel-Moreno
- Division of Allergy Immunology and Rheumatology, The Department of Medicine, University of Rochester, Rochester, NY, United States
| | - Troy D Randall
- Division of Clinical Immunology and Rheumatology, The Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
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9
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Ha AW, Sudhadevi T, Ebenezer DL, Fu P, Berdyshev EV, Ackerman SJ, Natarajan V, Harijith A. Neonatal therapy with PF543, a sphingosine kinase 1 inhibitor, ameliorates hyperoxia-induced airway remodeling in a murine model of bronchopulmonary dysplasia. Am J Physiol Lung Cell Mol Physiol 2020; 319:L497-L512. [PMID: 32697651 DOI: 10.1152/ajplung.00169.2020] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Hyperoxia (HO)-induced lung injury contributes to bronchopulmonary dysplasia (BPD) in preterm newborns. Intractable wheezing seen in BPD survivors is associated with airway remodeling (AWRM). Sphingosine kinase 1 (SPHK1)/sphingosine-1-phosphate (S1P) signaling promotes HO-mediated neonatal BPD; however, its role in the sequela of AWRM is not known. We noted an increased concentration of S1P in tracheal aspirates of neonatal infants with severe BPD, and earlier, demonstrated that Sphk1-/- mice showed protection against HO-induced BPD. The role of SPHK1/S1P in promoting AWRM following exposure of neonates to HO was investigated in a murine model. Therapy using PF543, the specific SPHK1 inhibitor, during neonatal HO reduced alveolar simplification followed by reduced AWRM in adult mice. This was associated with reduced airway hyperreactivity to intravenous methacholine. Neonatal HO exposure was associated with increased expression of SPHK1 in lung tissue of adult mice, which was reduced with PF543 therapy in the neonatal stage. This was accompanied by amelioration of HO-induced reduction of E-cadherin in airway epithelium. This may be suggestive of arrested partial epithelial mesenchymal transition (EMT) induced by HO. In vitro studies using human primary airway epithelial cells (HAEpCs) showed that SPHK1 inhibition or deletion restored HO-induced reduction in E-cadherin and reduced formation of mitochondrial reactive oxygen species (mtROS). Blocking mtROS with MitoTempo attenuated HO-induced partial EMT of HAEpCs. These results collectively support a therapeutic role for PF543 in preventing HO-induced BPD in neonates and the long-term sequela of AWRM, thus conferring a long-term protection resulting in improved lung development and function.
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Affiliation(s)
- Alison W Ha
- Department of Biochemistry, University of Illinois, Chicago, Illinois
| | - Tara Sudhadevi
- Department of Pediatrics, Case Western Reserve University, Cleveland, Ohio
| | - David L Ebenezer
- Department of Pharmacology, University of Illinois, Chicago, Illinois
| | - Panfeng Fu
- Department of Pharmacology, University of Illinois, Chicago, Illinois
| | | | - Steven J Ackerman
- Department of Biochemistry, University of Illinois, Chicago, Illinois
| | - Viswanathan Natarajan
- Department of Pharmacology, University of Illinois, Chicago, Illinois.,Department of Medicine, University of Illinois, Chicago, Illinois
| | - Anantha Harijith
- Department of Pediatrics, Case Western Reserve University, Cleveland, Ohio
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10
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Sudhadevi T, Ha AW, Ebenezer DL, Fu P, Putherickal V, Natarajan V, Harijith A. Advancements in understanding the role of lysophospholipids and their receptors in lung disorders including bronchopulmonary dysplasia. Biochim Biophys Acta Mol Cell Biol Lipids 2020; 1865:158685. [PMID: 32169655 PMCID: PMC7206974 DOI: 10.1016/j.bbalip.2020.158685] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 01/25/2020] [Accepted: 03/09/2020] [Indexed: 12/14/2022]
Abstract
Bronchopulmonary dysplasia (BPD) is a devastating chronic neonatal lung disease leading to serious adverse consequences. Nearly 15 million babies are born preterm accounting for >1 in 10 births globally. The aetiology of BPD is multifactorial and the survivors suffer lifelong respiratory morbidity. Lysophospholipids (LPL), which include sphingosine-1-phosphate (S1P), and lysophosphatidic acid (LPA) are both naturally occurring bioactive lipids involved in a variety of physiological and pathological processes such as cell survival, death, proliferation, migration, immune responses and vascular development. Altered LPL levels have been observed in a number of lung diseases including BPD, which underscores the importance of these signalling lipids under normal and pathophysiological situations. Due to the paucity of information related to LPLs in BPD, most of the ideas related to BPD and LPL are speculative. This article is intended to promote discussion and generate hypotheses, in addition to the limited review of information related to BPD already established in the literature.
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Affiliation(s)
- Tara Sudhadevi
- Department of Pediatrics, University of Illinois, Chicago, IL, United States of America
| | - Alison W Ha
- Department of Biochemistry and Molecular Genetics, University of Illinois, Chicago, IL, United States of America
| | - David L Ebenezer
- Department of Biochemistry and Molecular Genetics, University of Illinois, Chicago, IL, United States of America
| | - Panfeng Fu
- Department of Pharmacology, University of Illinois, Chicago, IL, United States of America
| | - Vijay Putherickal
- Department of Pharmacology, University of Illinois, Chicago, IL, United States of America
| | - Viswanathan Natarajan
- Department of Pharmacology, University of Illinois, Chicago, IL, United States of America; Department of Medicine, University of Illinois, Chicago, IL, United States of America
| | - Anantha Harijith
- Department of Pediatrics, University of Illinois, Chicago, IL, United States of America; Department of Biochemistry and Molecular Genetics, University of Illinois, Chicago, IL, United States of America; Department of Pharmacology, University of Illinois, Chicago, IL, United States of America.
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11
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Ingram JL. Give Me Some Room to Breathe! Can Targeting SPHK2 Reduce Airway Smooth Muscle Thickening in Asthma? Am J Respir Cell Mol Biol 2020; 62:1-2. [PMID: 31298926 PMCID: PMC6938127 DOI: 10.1165/rcmb.2019-0240ed] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Affiliation(s)
- Jennifer L Ingram
- Department of MedicineDepartment of Surgeryand
- Department of PathologyDuke University Medical CenterDurham, North Carolina
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12
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Debeuf N, Zhakupova A, Steiner R, Van Gassen S, Deswarte K, Fayazpour F, Van Moorleghem J, Vergote K, Pavie B, Lemeire K, Hammad H, Hornemann T, Janssens S, Lambrecht BN. The ORMDL3 asthma susceptibility gene regulates systemic ceramide levels without altering key asthma features in mice. J Allergy Clin Immunol 2019; 144:1648-1659.e9. [PMID: 31330218 DOI: 10.1016/j.jaci.2019.06.041] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 06/27/2019] [Accepted: 06/28/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND Genome-wide association studies in asthma have repeatedly identified single nucleotide polymorphisms in the ORM (yeast)-like protein isoform 3 (ORMDL3) gene across different populations. Although the ORM homologues in yeast are well-known inhibitors of sphingolipid synthesis, it is still unclear whether and how mammalian ORMDL3 regulates sphingolipid metabolism and whether altered sphingolipid synthesis would be causally related to asthma risk. OBJECTIVE We sought to examine the in vivo role of ORMDL3 in sphingolipid metabolism and allergic asthma. METHODS Ormdl3-LacZ reporter mice, gene-deficient Ormdl3-/- mice, and overexpressing Ormdl3Tg/wt mice were exposed to physiologically relevant aeroallergens, such as house dust mite (HDM) or Alternaria alternata, to induce experimental asthma. Mass spectrometry-based sphingolipidomics were performed, and airway eosinophilia, TH2 cytokine production, immunoglobulin synthesis, airway remodeling, and bronchial hyperreactivity were measured. RESULTS HDM challenge significantly increased levels of total sphingolipids in the lungs of HDM-sensitized mice compared with those in control mice. In Ormdl3Tg/wt mice the allergen-induced increase in lung ceramide levels was significantly reduced, whereas total sphingolipid levels were not affected. Conversely, in liver and serum, levels of total sphingolipids, including ceramides, were increased in Ormdl3-/- mice, whereas they were decreased in Ormdl3Tg/wt mice. This difference was independent of allergen exposure. Despite these changes, all features of asthma were identical between wild-type, Ormdl3Tg/wt, and Ormdl3-/- mice across several models of experimental asthma. CONCLUSION ORMDL3 regulates systemic ceramide levels, but genetically interfering with Ormdl3 expression does not result in altered experimental asthma.
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Affiliation(s)
- Nincy Debeuf
- Laboratory of Mucosal Immunology and Immunoregulation, VIB Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Assem Zhakupova
- Institute of Clinical Chemistry, University and University Hospital Zurich, Zurich, Switzerland
| | - Regula Steiner
- Institute of Clinical Chemistry, University and University Hospital Zurich, Zurich, Switzerland
| | - Sofie Van Gassen
- Data Mining and Modeling for Biomedicine, VIB Center for Inflammation Research, Ghent, Belgium; Department of Applied Mathematics, Computer Science and Statistics, Ghent University, Ghent, Belgium
| | - Kim Deswarte
- Laboratory of Mucosal Immunology and Immunoregulation, VIB Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Farzaneh Fayazpour
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium; Laboratory for ER Stress and Inflammation, VIB Center for Inflammation Research, Ghent, Belgium
| | - Justine Van Moorleghem
- Laboratory of Mucosal Immunology and Immunoregulation, VIB Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Karl Vergote
- Laboratory of Mucosal Immunology and Immunoregulation, VIB Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Benjamin Pavie
- VIB Bioimaging Core, VIB Center for Inflammation Research, Ghent, Belgium; Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Kelly Lemeire
- Biomedical Molecular Biology, Ghent University, Ghent, Belgium; VIB Center for Inflammation Research, Ghent, Belgium
| | - Hamida Hammad
- Laboratory of Mucosal Immunology and Immunoregulation, VIB Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Thorsten Hornemann
- Institute of Clinical Chemistry, University and University Hospital Zurich, Zurich, Switzerland
| | - Sophie Janssens
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium; Laboratory for ER Stress and Inflammation, VIB Center for Inflammation Research, Ghent, Belgium
| | - Bart N Lambrecht
- Laboratory of Mucosal Immunology and Immunoregulation, VIB Center for Inflammation Research, Ghent, Belgium; Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium; Department of Pulmonary Medicine, Erasmus Medical Center, Rotterdam, The Netherlands.
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13
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Kowal K, Żebrowska E, Chabowski A. Altered Sphingolipid Metabolism Is Associated With Asthma Phenotype in House Dust Mite-Allergic Patients. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2019; 11:330-342. [PMID: 30912323 PMCID: PMC6439195 DOI: 10.4168/aair.2019.11.3.330] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Revised: 11/18/2018] [Accepted: 12/11/2018] [Indexed: 12/21/2022]
Abstract
Purpose Sphingolipids play an important role in cell growth, survival, inflammation and tissue remodeling. House dust mite (HDM) allergy is a major risk factor for asthma. The aim of the study was to evaluate if allergic asthma phenotype is associated with altered sphingolipid metabolism. Methods Twenty-two HDM-allergic asthmatic patients and 11 HDM-allergic rhinitis patients were challenged intrabronchially with biologically standardized Dermatophagoides pteronyssinus extract. Whole blood and platelet-poor plasma samples were collected before, during early asthmatic response (EAR), late asthmatic response (LAR) and 24 hours after the challenge. Concentrations of sphinganine (SFA), sphinganine-1-phosphate (SFA1P), ceramide, sphingosine (SFO) and sphingosine-1-phosphate (S1P) were measured using high performance liquid chromatography. Results In all house dust mite-allergic patients (HDM-APs), baseline lung function and severity of airway hyperreactivity (AHR) correlated significantly with plasma S1P and SFA1P concentrations. Exhaled nitric oxide concentration, however, correlated with SFA and ceramide, but not with S1P or SFA1P concentration. Allergen challenge increased plasma S1P concentration during EAR, but only in patients who developed both EAR and LAR. The magnitude of the increase determined during EAR correlated with the severity of subsequently developed LAR. Platelet and eosinophil counts were independent predictors of plasma S1P concentration. A significant increase in plasma SFA concentration in response to allergen challenge was seen only in patients who did not develop asthmatic response. Conclusions Altered sphingolipid metabolism, with augmented synthesis of S1P and impaired de novo sphingolipid synthesis in response to allergen challenge, may participate in the development of asthma phenotype in HDM-APs.
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Affiliation(s)
- Krzysztof Kowal
- Department of Experimental Allergology and Immunology, Medical University of Bialystok, Bialystok, Poland.,Department of Allergology and Internal Medicine, Medical University of Bialystok, Bialystok, Poland.
| | - Ewa Żebrowska
- Department of Physiology, Medical University of Bialystok, Bialystok, Poland
| | - Adrian Chabowski
- Department of Physiology, Medical University of Bialystok, Bialystok, Poland
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14
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Sturgill JL. Sphingolipids and their enigmatic role in asthma. Adv Biol Regul 2018; 70:74-81. [PMID: 30197277 PMCID: PMC6560640 DOI: 10.1016/j.jbior.2018.09.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 09/04/2018] [Indexed: 12/24/2022]
Abstract
Asthma is defined as a chronic inflammatory condition in the lung and is characterized by episodic shortness of breath with expiratory wheezing and cough. Asthma is a serious public health concern globally with an estimated incidence over 300 million. Asthma is a complex disease in that it manifests as disease of gene and environmental interactions. Sphingolipids are a unique class of lipids involved in a host of biological functions ranging from serving as key cellular membrane lipids to acting as critical signaling molecules. To date sphingolipids have been studied across various human conditions ranging from neurological disorders to cancer to infection to autoimmunity. This review will focus on the role of sphingolipids in asthma development and pathology with particular focus on the role of mast cell sphingolipid biology.
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Affiliation(s)
- Jamie L Sturgill
- University of Kentucky, Department of Internal Medicine, Division of Pulmonary, Critical Care, & Sleep Medicine, 740 South Limestone St, Lexington, KY 40536, United States.
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15
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Eldridge L, Wagner EM. Angiogenesis in the lung. J Physiol 2018; 597:1023-1032. [PMID: 30022479 DOI: 10.1113/jp275860] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 06/21/2018] [Indexed: 12/12/2022] Open
Abstract
Both systemic (tracheal and bronchial) and pulmonary circulations perfuse the lung. However, documentation of angiogenesis of either is complicated by the presence of the other. Well-documented angiogenesis of the systemic circulations have been identified in asthma, cystic fibrosis, chronic thromboembolism and primary carcinomas. Angiogenesis of the vasa vasorum, which are branches of bronchial arteries, is seen in the walls of large pulmonary vessels after a period of chronic hypoxia. Documentation of increased pulmonary capillaries has been shown in models of chronic hypoxia, after pneumonectomy and in some carcinomas. Although endothelial cell proliferation may occur as part of the repair process in several pulmonary diseases, it is separate from the unique establishment of new functional perfusing networks defined as angiogenesis. Identification of the mechanisms driving the expansion of new vascular beds in the adult needs further investigation. Yet the growth factors and molecular mechanisms of lung angiogenesis remain difficult to separate from underlying disease sequelae.
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Affiliation(s)
- Lindsey Eldridge
- Departments of Medicine and Environmental Health Sciences, Johns Hopkins University, Baltimore, MD, USA
| | - Elizabeth M Wagner
- Departments of Medicine and Environmental Health Sciences, Johns Hopkins University, Baltimore, MD, USA
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16
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Gendron DR, Lecours PB, Lemay AM, Beaulieu MJ, Huppé CA, Lee-Gosselin A, Flamand N, Don AS, Bissonnette É, Blanchet MR, Laplante M, Bourgoin SG, Bossé Y, Marsolais D. A Phosphorylatable Sphingosine Analog Induces Airway Smooth Muscle Cytostasis and Reverses Airway Hyperresponsiveness in Experimental Asthma. Front Pharmacol 2017; 8:78. [PMID: 28270767 PMCID: PMC5318459 DOI: 10.3389/fphar.2017.00078] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Accepted: 02/07/2017] [Indexed: 11/13/2022] Open
Abstract
In asthma, excessive bronchial narrowing associated with thickening of the airway smooth muscle (ASM) causes respiratory distress. Numerous pharmacological agents prevent experimental airway hyperresponsiveness (AHR) when delivered prophylactically. However, most fail to resolve this feature after disease is instated. Although sphingosine analogs are primarily perceived as immune modulators with the ability to prevent experimental asthma, they also influence processes associated with tissue atrophy, supporting the hypothesis that they could interfere with mechanisms sustaining pre-established AHR. We thus assessed the ability of a sphingosine analog (AAL-R) to reverse AHR in a chronic model of asthma. We dissected the pharmacological mechanism of this class of agents using the non-phosphorylatable chiral isomer AAL-S and the pre-phosphorylated form of AAL-R (AFD-R) in vivo and in human ASM cells. We found that a therapeutic course of AAL-R reversed experimental AHR in the methacholine challenge test, which was not replicated by dexamethasone or the non-phosphorylatable isomer AAL-S. AAL-R efficiently interfered with ASM cell proliferation in vitro, supporting the concept that immunomodulation is not necessary to interfere with cellular mechanisms sustaining AHR. Moreover, the sphingosine-1-phosphate lyase inhibitor SM4 and the sphingosine-1-phosphate receptor antagonist VPC23019 failed to inhibit proliferation, indicating that intracellular accumulation of sphingosine-1-phosphate or interference with cell surface S1P1/S1P3 activation, are not sufficient to induce cytostasis. Potent AAL-R-induced cytostasis specifically related to its ability to induce intracellular AFD-R accumulation. Thus, a sphingosine analog that possesses the ability to be phosphorylated in situ interferes with cellular mechanisms that beget AHR.
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Affiliation(s)
- David R Gendron
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec QC, Canada
| | - Pascale B Lecours
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec QC, Canada
| | - Anne-Marie Lemay
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec QC, Canada
| | - Marie-Josée Beaulieu
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec QC, Canada
| | - Carole-Ann Huppé
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec QC, Canada
| | - Audrey Lee-Gosselin
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec QC, Canada
| | - Nicolas Flamand
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, QuébecQC, Canada; Faculty of Medicine, Université Laval, QuébecQC, Canada
| | - Anthony S Don
- Centenary Institute and NHMRC Clinical Trials Centre, University of Sydney, Camperdown NSW, Australia
| | - Élyse Bissonnette
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, QuébecQC, Canada; Faculty of Medicine, Université Laval, QuébecQC, Canada
| | - Marie-Renée Blanchet
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, QuébecQC, Canada; Faculty of Medicine, Université Laval, QuébecQC, Canada
| | - Mathieu Laplante
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, QuébecQC, Canada; Faculty of Medicine, Université Laval, QuébecQC, Canada
| | - Sylvain G Bourgoin
- Faculty of Medicine, Université Laval, QuébecQC, Canada; Division of Infectious Diseases and Immunology, CHU de Québec Research Center, QuébecQC, Canada
| | - Ynuk Bossé
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, QuébecQC, Canada; Faculty of Medicine, Université Laval, QuébecQC, Canada
| | - David Marsolais
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, QuébecQC, Canada; Faculty of Medicine, Université Laval, QuébecQC, Canada
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17
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Abstract
Sphingosine-1-phosphate (S1P), a simple, bioactive sphingolipid metabolite, plays a key role, both intracellularly and extracellularly, in various cellular processes such as proliferation, survival, migration, inflammation, angiogenesis, and endothelial barrier integrity. The cellular S1P level is low and is tightly regulated by its synthesis and degradation. Sphingosine Kinases (SphKs) 1 and 2, catalyze the ATP-dependent phosphorylation of sphingosine to S1P, while the degradation is mediated by the reversible dephosphorylation catalyzed by the S1P phosphatases and lipid phosphate phosphatases and the irreversible degradation to hexadecenal and ethanolamine phosphate by sphingosine-1-phosphate lyase (S1PL). As a ligand for specific G-protein-coupled receptors, S1P1-5, which are differentially expressed in different cell types, S1P generates downstream signals that play crucial role in developmental and disease related pathologies. In addition to acting extracellularly on receptors located on the plasma membrane, S1P can also act intracellularly, independently of S1P1-5, affecting calcium homeostasis and cell proliferation. The SphKs /S1P /S1PL metabolic pathway is implicated in numerous human pathologies including respiratory disorders, thereby raising the possibility that manipulating intracellular S1P levels could offer therapeutic potential in ameliorating lung diseases. This review focuses on the prospects of targeting S1P signaling and S1P metabolizing enzymes using small molecule inhibitors, receptor agonists, and antagonists in the treatment of lung diseases.
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Affiliation(s)
- David L Ebenezer
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, IL, USA
| | - Panfeng Fu
- Department of Pharmacology, University of Illinois at Chicago, IL, USA
| | - Viswanathan Natarajan
- Department of Biochemistry and Molecular Genetics, University of Illinois at Chicago, IL, USA; Department of Pharmacology, University of Illinois at Chicago, IL, USA; Department of Medicine, University of Illinois at Chicago, IL, USA; Department of Bioengineering, University of Illinois at Chicago, IL, USA.
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18
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Lymphangiogenesis in rat asthma model. Angiogenesis 2016; 20:73-84. [PMID: 27787629 DOI: 10.1007/s10456-016-9529-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 10/20/2016] [Indexed: 01/04/2023]
Abstract
Although bronchial angiogenesis has been well documented in allergic asthma, lymphangiogenesis has not been widely studied. Therefore, we evaluated changes in lung lymphatics in a rat model of allergen-induced asthma using house dust mite (Der p 1; 100 μg/challenge). Additionally, properties of isolated lung lymphatic endothelial cells (CD45-, CD141+, LYVE-1+, Prox-1+) were studied in vitro. Three weeks after the onset of intranasal allergen exposure (twice-weekly), an increase in the number of lung lymphatic vessels was measured (34% increase) by lung morphometry. New lymphatic structures were seen predominantly in the peribronchial and periarterial interstitial space but also surrounding large airways. Isolated lymphatic endothelial cells from sensitized lungs showed enhanced proliferation (% Ki67+), chemotaxis, and tube formation (number and length) compared to lymphatic endothelial cells isolated from naive rat lungs. This hyper-proliferative lymphangiogenic phenotype was preserved through multiple cell passages (2-8). Lymphatic endothelial cells isolated from naive and HDM-sensitized rats produced similar in vitro levels of VEGF-C, VEGF-D, and VEGFR3 protein, each recognized as critical lymphangiogenic factors. Inhibition with anti-VEGFR (axitinib, 0.1 μM) blocked proliferation and chemotaxis. Results suggest that in vivo sensitization causes fundamental changes to lymphatic endothelium, which are retained in vitro, and may relate to VEGFR downstream signaling.
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19
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Su X, Ren Y, Yu N, Kong L, Kang J. Thymoquinone inhibits inflammation, neoangiogenesis and vascular remodeling in asthma mice. Int Immunopharmacol 2016; 38:70-80. [PMID: 27240137 DOI: 10.1016/j.intimp.2016.05.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 05/19/2016] [Accepted: 05/19/2016] [Indexed: 01/01/2023]
Abstract
Asthma is a chronic obstructive disease which is characterized by recurring airway inflammation, reversible airway obstruction, airway hyper responsiveness and vascular remodeling. Thymoquinone (TQ), an active ingredient isolated from Nigella sativa, was reported to exhibit anti-inflammation and anti-proliferation of in various cancer cells as well as epithelial cells. The aim of this study was to evaluate the effect of TQ on the inflammation, neoangiogenesis and vascular remodeling induced by Ovalbumin (OVA) in asthma mice in vivo and the anti-angiogenesis effects of TQ in VEGF-induced human umbilical vein endothelial cells (HUVECs) in vitro. Our results revealed that TQ inhibited the production of inflammatory factors interleukin-4/-5 (IL-4/-5) by enzyme-linked immunesorbent assay (ELISA). Immunohistochemistry analysis showed that the increase of platelet endothelial cell adhesion molecule-1, which is also known as CD31 and α-smooth muscle actinalpha (α-SMA) expression in asthma mice challenged by OVA was suppressed by TQ. Moreover, TQ suppressed the activation of VEGFR2-PI3K-Akt pathway and up-regulated the expression of Slit glycoprotein-2 (Slit-2) both in vivo and in vitro with the inhibition of tube information in HUVEC cells. Meanwhile immunofluorescence analysis showed that Slit-2 and Roundabout-4 (Robo-4) were co-expressing after TQ treatment in OVA-challenged asthma mice. Our study demonstrates that TQ attenuated the inflammatory reaction by antagonizing IL-4/-5 while the anti-neoangiogenesis effect of TQ is mediated by inhibition of vascular endothelial growth factor (VEGF) expression through VEGFR2/PI3K/Akt signaling pathway, which supports a potential role for TQ in ameliorating asthma.
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Affiliation(s)
- Xinming Su
- Department of Respiratory Medicine, Institute of Respiratory Diseases, The First Affiliated Hospital of China Medical University, Shenyang 110001, People's Republic of China.
| | - Yuan Ren
- Department of Respiratory Medicine, Institute of Respiratory Diseases, The First Affiliated Hospital of China Medical University, Shenyang 110001, People's Republic of China
| | - Na Yu
- Department of Respiratory Medicine, Institute of Respiratory Diseases, The First Affiliated Hospital of China Medical University, Shenyang 110001, People's Republic of China
| | - Lingfei Kong
- Department of Respiratory Medicine, Institute of Respiratory Diseases, The First Affiliated Hospital of China Medical University, Shenyang 110001, People's Republic of China
| | - Jian Kang
- Department of Respiratory Medicine, Institute of Respiratory Diseases, The First Affiliated Hospital of China Medical University, Shenyang 110001, People's Republic of China
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20
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Petrache I, Berdyshev EV. Ceramide Signaling and Metabolism in Pathophysiological States of the Lung. Annu Rev Physiol 2015; 78:463-80. [PMID: 26667073 DOI: 10.1146/annurev-physiol-021115-105221] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Following the discovery of ceramide as the central signaling and metabolic relay among sphingolipids, studies of its involvement in lung health and pathophysiology have exponentially increased. In this review, we highlight key studies in the context of recent progress in metabolomics and translational research methodologies. Evidence points toward an important role for the ceramide/sphingosine-1-phosphate rheostat in maintaining lung cell survival, vascular barrier function, and proper host response to airway microbial infections. Sphingosine kinase 1 has emerged as an important determinant of sphingosine-1-phosphate lung levels, which, when aberrantly high, contribute to lung fibrosis, maladaptive vascular remodeling, and allergic asthma. New sphingolipid metabolites have been discovered as potential biomarkers of several lung diseases. Although multiple acute and chronic lung pathological conditions involve perturbations in sphingolipid signaling and metabolism, there are specific patterns, unique sphingolipid species, enzymes, metabolites, and receptors, which have emerged that deepen our understanding of lung pathophysiology and inform the development of new therapies for lung diseases.
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Affiliation(s)
- Irina Petrache
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, National Jewish Health, Denver, Colorado 80206; ,
| | - Evgeny V Berdyshev
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, National Jewish Health, Denver, Colorado 80206; ,
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21
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Oyeniran C, Sturgill JL, Hait NC, Huang WC, Avni D, Maceyka M, Newton J, Allegood JC, Montpetit A, Conrad DH, Milstien S, Spiegel S. Aberrant ORM (yeast)-like protein isoform 3 (ORMDL3) expression dysregulates ceramide homeostasis in cells and ceramide exacerbates allergic asthma in mice. J Allergy Clin Immunol 2015; 136:1035-46.e6. [PMID: 25842287 PMCID: PMC4591101 DOI: 10.1016/j.jaci.2015.02.031] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 01/28/2015] [Accepted: 02/27/2015] [Indexed: 12/21/2022]
Abstract
BACKGROUND Asthma, a chronic inflammatory condition defined by episodic shortness of breath with expiratory wheezing and cough, is a serious health concern affecting more than 250 million persons. Genome-wide association studies have identified ORM (yeast)-like protein isoform 3 (ORMDL3) as a gene associated with susceptibility to asthma. Although its yeast ortholog is a negative regulator of de novo ceramide biosynthesis, how ORMDL3 contributes to asthma pathogenesis is not known. OBJECTIVES We sought to decipher the molecular mechanism for the pathologic functions of ORMDL3 in asthma and the relationship to its evolutionarily conserved role in regulation of ceramide homeostasis. METHODS We determined the relationship between expression of ORMDL3 and ceramide in epithelial and inflammatory cells and in asthma pathogenesis in mice. RESULTS Although small increases in ORMDL3 expression decrease ceramide levels, remarkably, higher expression in lung epithelial cells and macrophages in vitro and in vivo increased ceramide production, which promoted chronic inflammation, airway hyperresponsiveness, and mucus production during house dust mite-induced allergic asthma. Moreover, nasal administration of the immunosuppressant drug FTY720/fingolimod reduced ORMDL3 expression and ceramide levels and mitigated airway inflammation and hyperreactivity and mucus hypersecretion in house dust mite-challenged mice. CONCLUSIONS Our findings demonstrate that overexpression of ORMDL3 regulates ceramide homeostasis in cells in a complex manner and suggest that local FTY720 administration might be a useful therapeutic intervention for the control of allergic asthma.
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Affiliation(s)
- Clement Oyeniran
- Department of Biochemistry and Molecular Biology and the Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Jamie L Sturgill
- Department of Microbiology & Immunology, Virginia Commonwealth University School of Medicine, Richmond, Va; School of Nursing, Virginia Commonwealth University, Richmond, Va
| | - Nitai C Hait
- Department of Biochemistry and Molecular Biology and the Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Wei-Ching Huang
- Department of Biochemistry and Molecular Biology and the Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Dorit Avni
- Department of Biochemistry and Molecular Biology and the Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Michael Maceyka
- Department of Biochemistry and Molecular Biology and the Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Jason Newton
- Department of Biochemistry and Molecular Biology and the Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Jeremy C Allegood
- Department of Biochemistry and Molecular Biology and the Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Alison Montpetit
- School of Nursing, Virginia Commonwealth University, Richmond, Va
| | - Daniel H Conrad
- Department of Microbiology & Immunology, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Sheldon Milstien
- Department of Biochemistry and Molecular Biology and the Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, Va
| | - Sarah Spiegel
- Department of Biochemistry and Molecular Biology and the Massey Cancer Center, Virginia Commonwealth University School of Medicine, Richmond, Va.
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22
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Gendron D, Lemay AM, Tremblay C, Lai LJ, Langlois A, Bernatchez É, Flamand N, Blanchet MR, Don AS, Bossé Y, Bissonnette É, Marsolais D. Treatment with a sphingosine analog after the inception of house dust mite-induced airway inflammation alleviates key features of experimental asthma. Respir Res 2015; 16:7. [PMID: 25645346 PMCID: PMC4330646 DOI: 10.1186/s12931-015-0180-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2014] [Accepted: 01/21/2015] [Indexed: 12/23/2022] Open
Abstract
Background In vivo phosphorylation of sphingosine analogs with their ensuing binding and activation of their cell-surface sphingosine-1-phosphate receptors is regarded as the main immunomodulatory mechanism of this new class of drugs. Prophylactic treatment with sphingosine analogs interferes with experimental asthma by impeding the migration of dendritic cells to draining lymph nodes. However, whether these drugs can also alleviate allergic airway inflammation after its onset remains to be determined. Herein, we investigated to which extent and by which mechanisms the sphingosine analog AAL-R interferes with key features of asthma in a murine model during ongoing allergic inflammation induced by Dermatophagoides pteronyssinus. Methods BALB/c mice were exposed to either D. pteronyssinus or saline, intranasally, once-daily for 10 consecutive days. Mice were treated intratracheally with either AAL-R, its pre-phosphorylated form AFD-R, or the vehicle before every allergen challenge over the last four days, i.e. after the onset of allergic airway inflammation. On day 11, airway responsiveness to methacholine was measured; inflammatory cells and cytokines were quantified in the airways; and the numbers and/or viability of T cells, B cells and dendritic cells were assessed in the lungs and draining lymph nodes. Results AAL-R decreased airway hyperresponsiveness induced by D. pteronyssinus by nearly 70%. This was associated with a strong reduction of IL-5 and IL-13 levels in the airways and with a decreased eosinophilic response. Notably, the lung CD4+ T cells were almost entirely eliminated by AAL-R, which concurred with enhanced apoptosis/necrosis in that cell population. This inhibition occurred in the absence of dendritic cell number modulation in draining lymph nodes. On the other hand, the pre-phosphorylated form AFD-R, which preferentially acts on cell-surface sphingosine-1-phosphate receptors, was relatively impotent at enhancing cell death, which led to a less efficient control of T cell and eosinophil responses in the lungs. Conclusion Airway delivery of the non-phosphorylated sphingosine analog, but not its pre-phosphorylated counterpart, is highly efficient at controlling the local T cell response after the onset of allergic airway inflammation. The mechanism appears to involve local induction of lymphocyte apoptosis/necrosis, while mildly affecting dendritic cell and T cell accumulation in draining lymph nodes.
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Affiliation(s)
- David Gendron
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Québec, QC, Canada.
| | - Anne-Marie Lemay
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Québec, QC, Canada.
| | - Claudine Tremblay
- Laboratoires Charles River, Services Précliniques, Montréal, Canada.
| | - Laetitia Ja Lai
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Québec, QC, Canada.
| | - Anick Langlois
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Québec, QC, Canada.
| | - Émilie Bernatchez
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Québec, QC, Canada.
| | - Nicolas Flamand
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Québec, QC, Canada. .,Département de Médecine, Faculté de Médecine, Université Laval, Québec, QC, Canada.
| | - Marie-Renée Blanchet
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Québec, QC, Canada. .,Département de Médecine, Faculté de Médecine, Université Laval, Québec, QC, Canada.
| | - Anthony S Don
- Prince of Wales Clinical School, Faculty of Medicine, University of New South Wales, Sydney, 2052, NSW, Australia.
| | - Ynuk Bossé
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Québec, QC, Canada. .,Département de Médecine, Faculté de Médecine, Université Laval, Québec, QC, Canada.
| | - Élyse Bissonnette
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Québec, QC, Canada. .,Département de Médecine, Faculté de Médecine, Université Laval, Québec, QC, Canada.
| | - David Marsolais
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Québec, QC, Canada. .,Département de Médecine, Faculté de Médecine, Université Laval, Québec, QC, Canada.
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The sphingosine-1-phosphate/sphingosine-1-phosphate receptor 2 axis regulates early airway T-cell infiltration in murine mast cell-dependent acute allergic responses. J Allergy Clin Immunol 2014; 135:1008-1018.e1. [PMID: 25512083 DOI: 10.1016/j.jaci.2014.10.044] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Revised: 10/28/2014] [Accepted: 10/31/2014] [Indexed: 12/13/2022]
Abstract
BACKGROUND Sphingosine-1-phosphate (S1P) is a bioactive sphingolipid produced by mast cells (MCs) on cross-linking of their high-affinity receptors for IgE by antigen that can amplify MC responses by binding to its S1P receptors. An acute MC-dependent allergic reaction can lead to systemic shock, but the early events of its development in lung tissues have not been investigated, and S1P functions in the onset of allergic processes remain to be examined. OBJECTIVE We used a highly specific neutralizing anti-S1P antibody (mAb) and the sphingosine-1-phosphate receptor 2 (S1PR2) antagonist JTE-013 to study the signaling contributions of S1P and S1PR2 to MC- and IgE-dependent airway allergic responses in mice within minutes after antigen challenge. METHODS Allergic reaction was triggered by a single intraperitoneal dose of antigen in sensitized mice pretreated intraperitoneally with anti-S1P, isotype control mAb, JTE-013, or vehicle before antigen challenge. RESULTS Kinetics experiments revealed early pulmonary infiltration of mostly T cells around blood vessels of sensitized mice 20 minutes after antigen exposure. Pretreatment with anti-S1P mAb inhibited in vitro MC activation, as well as in vivo development of airway infiltration and MC activation, reducing serum levels of histamine, cytokines, and the chemokines monocyte chemoattractant protein 1/CCL2, macrophage inflammatory protein 1α/CCL3, and RANTES/CCL5. S1PR2 antagonism or deficiency or MC deficiency recapitulated these results. Both in vitro and in vivo experiments demonstrated MC S1PR2 dependency for chemokine release and the necessity for signal transducer and activator of transcription 3 activation. CONCLUSION Activation of S1PR2 by S1P and downstream signal transducer and activator of transcription 3 signaling in MCs regulate early T-cell recruitment to antigen-challenged lungs through chemokine production.
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Wagner EM, Jenkins J, Schmieder A, Eldridge L, Zhang Q, Moldobaeva A, Zhang H, Allen JS, Yang X, Mitzner W, Keupp J, Caruthers SD, Wickline SA, Lanza GM. Angiogenesis and airway reactivity in asthmatic Brown Norway rats. Angiogenesis 2014; 18:1-11. [PMID: 25149641 DOI: 10.1007/s10456-014-9441-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2014] [Accepted: 08/16/2014] [Indexed: 12/24/2022]
Abstract
Expanded and aberrant bronchial vascularity, a prominent feature of the chronic asthmatic airway, might explain persistent airway wall edema and sustained leukocyte recruitment. Since it is well established that there are causal relationships between exposure to house dust mite (HDM) and the development of asthma, determining the effects of HDM in rats, mammals with a bronchial vasculature similar to humans, provides an opportunity to study the effects of bronchial angiogenesis on airway function directly. We studied rats exposed bi-weekly to HDM (Der p 1; 50 μg/challenge by intranasal aspiration, 1, 2, 3 weeks) and measured the time course of appearance of increased blood vessels within the airway wall. Results demonstrated that within 3 weeks of HDM exposure, the number of vessels counted within airway walls of bronchial airways (0.5-3 mm perimeter) increased significantly. These vascular changes were accompanied by increased airway responsiveness to methacholine. A shorter exposure regimen (2 weeks of bi-weekly exposure) was insufficient to cause a significant increase in functional vessels or reactivity. Yet, 19F/1H MR imaging at 3T following αvβ3-targeted perfluorocarbon nanoparticle infusion revealed a significant increase in 19F signal in rat airways after 2 weeks of bi-weekly HDM, suggesting earlier activation of the process of neovascularization. Although many antigen-induced mouse models exist, mice lack a bronchial vasculature and consequently lack the requisite human parallels to study bronchial edema. Overall, our results provide an important new model to study the impact of bronchial angiogenesis on chronic inflammation and airways hyperreactivity.
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Siddiqui S, Novali M, Tsuchiya K, Hirota N, Geller BJ, McGovern TK, Risse PA, Jo T, Zeroual MA, Martin JG. The modulation of large airway smooth muscle phenotype and effects of epidermal growth factor receptor inhibition in the repeatedly allergen-challenged rat. Am J Physiol Lung Cell Mol Physiol 2013; 304:L853-62. [PMID: 23605002 DOI: 10.1152/ajplung.00047.2012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Allergen challenges induce airway hyperresponsiveness (AHR) and increased airway smooth muscle (ASM) mass in the sensitized rat. Whether the remodeled ASM changes its phenotype is uncertain. We examined, in sensitized Brown Norway rats, the effects of multiple ovalbumin (Ova) challenges on ASM remodeling and phenotype and the role of the epidermal growth factor receptor (EGFR) in these processes. Rats were sensitized with Ova and challenged three times at 5-day intervals with phosphate-buffered saline or Ova and pretreated with the EGFR inhibitor AG-1478 (5 mg/kg) or its vehicle dimethyl sulfoxide. Ova challenges increased ASM mass in all-sized airways and in large airway mRNA expression of smooth muscle myosin heavy chain (sm-MHC), assessed by laser capture. Myosin light chain kinase and the fast myosin isoform SM-B mRNA expressions were not affected. Ova induced AHR to methacholine, and, based on the constant-phase model, this was largely attributable to the small airways and lung derecruitment at 48 h that recovered by 1 wk. The EGFR ligands amphiregulin and heparin-binding epidermal growth factor (HB-EGF) were increased in bronchoalveolar lavage fluid at 48 h after Ova exposure. AG-1478 inhibited AHR and prevented ASM growth. Epithelial gene expression of EGFR, HB-EGF, matrix metalloproteinase (MMP)-9, Gro-α, and transforming growth factor-β was unaffected by Ova challenges. We conclude that EGFR drives remodeling of ASM, which results from repeated Ova challenge. Furthermore, the latter results in excessive small airway and, to a lesser degree, large airway narrowing to methacholine, and large airway gene expression of contractile protein is conserved.
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Affiliation(s)
- S Siddiqui
- Meakins-Christie Laboratories, Department of Medicine, McGill University, Montreal, Quebec, Canada
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