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Beaufils F, Esteves P, Enaud R, Prevel R, Henrot P, Campagnac M, Maurat E, Michelet M, Lavrand F, Begueret H, Trian T, Fayon M, Berger P. Clinical and bronchial parameters associated with the exacerbation frequency of severe preschool wheezers. THE JOURNAL OF ALLERGY AND CLINICAL IMMUNOLOGY. IN PRACTICE 2024; 12:1067-1070. [PMID: 38128699 DOI: 10.1016/j.jaip.2023.12.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 11/30/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023]
Affiliation(s)
- Fabien Beaufils
- INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, University of Bordeaux, Bordeaux, France; Département de Pédiatrie, CIC-P 1401, Service d'Anatomopathologie, Service d'Exploration Fonctionnelle Respiratoire, CHU Bordeaux, Bordeaux, France; INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, Centre d'Investigation Clinique (CIC-P 1401), Bordeaux, France.
| | - Pauline Esteves
- INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, University of Bordeaux, Bordeaux, France; INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, Centre d'Investigation Clinique (CIC-P 1401), Bordeaux, France
| | - Raphael Enaud
- INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, University of Bordeaux, Bordeaux, France; Département de Pédiatrie, CIC-P 1401, Service d'Anatomopathologie, Service d'Exploration Fonctionnelle Respiratoire, CHU Bordeaux, Bordeaux, France; INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, Centre d'Investigation Clinique (CIC-P 1401), Bordeaux, France
| | - Renaud Prevel
- INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, University of Bordeaux, Bordeaux, France; Département de Pédiatrie, CIC-P 1401, Service d'Anatomopathologie, Service d'Exploration Fonctionnelle Respiratoire, CHU Bordeaux, Bordeaux, France; INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, Centre d'Investigation Clinique (CIC-P 1401), Bordeaux, France
| | - Pauline Henrot
- INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, University of Bordeaux, Bordeaux, France; Département de Pédiatrie, CIC-P 1401, Service d'Anatomopathologie, Service d'Exploration Fonctionnelle Respiratoire, CHU Bordeaux, Bordeaux, France; INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, Centre d'Investigation Clinique (CIC-P 1401), Bordeaux, France
| | - Marilyne Campagnac
- INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, University of Bordeaux, Bordeaux, France; INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, Centre d'Investigation Clinique (CIC-P 1401), Bordeaux, France
| | - Elise Maurat
- INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, University of Bordeaux, Bordeaux, France; INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, Centre d'Investigation Clinique (CIC-P 1401), Bordeaux, France
| | - Marine Michelet
- Service de pneumologie-allergologie pédiatrique, Service d'Anatomopathologie, CHU Toulouse, Hôpital des Enfants, Toulouse, France; INSERM U1043 (CPTP), the University of Toulouse-Paul Sabatier, Toulouse, France
| | - Frederic Lavrand
- Département de Pédiatrie, CIC-P 1401, Service d'Anatomopathologie, Service d'Exploration Fonctionnelle Respiratoire, CHU Bordeaux, Bordeaux, France
| | - Hugues Begueret
- Département de Pédiatrie, CIC-P 1401, Service d'Anatomopathologie, Service d'Exploration Fonctionnelle Respiratoire, CHU Bordeaux, Bordeaux, France
| | - Thomas Trian
- INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, University of Bordeaux, Bordeaux, France; INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, Centre d'Investigation Clinique (CIC-P 1401), Bordeaux, France
| | - Michael Fayon
- INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, University of Bordeaux, Bordeaux, France; Département de Pédiatrie, CIC-P 1401, Service d'Anatomopathologie, Service d'Exploration Fonctionnelle Respiratoire, CHU Bordeaux, Bordeaux, France; INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, Centre d'Investigation Clinique (CIC-P 1401), Bordeaux, France
| | - Patrick Berger
- INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, University of Bordeaux, Bordeaux, France; Département de Pédiatrie, CIC-P 1401, Service d'Anatomopathologie, Service d'Exploration Fonctionnelle Respiratoire, CHU Bordeaux, Bordeaux, France; INSERM U1045, Centre de Recherche Cardio-thoracique de Bordeaux, Centre d'Investigation Clinique (CIC-P 1401), Bordeaux, France
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Nasri A, Foisset F, Ahmed E, Lahmar Z, Vachier I, Jorgensen C, Assou S, Bourdin A, De Vos J. Roles of Mesenchymal Cells in the Lung: From Lung Development to Chronic Obstructive Pulmonary Disease. Cells 2021; 10:3467. [PMID: 34943975 PMCID: PMC8700565 DOI: 10.3390/cells10123467] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 12/02/2021] [Accepted: 12/07/2021] [Indexed: 12/28/2022] Open
Abstract
Mesenchymal cells are an essential cell type because of their role in tissue support, their multilineage differentiation capacities and their potential clinical applications. They play a crucial role during lung development by interacting with airway epithelium, and also during lung regeneration and remodeling after injury. However, much less is known about their function in lung disease. In this review, we discuss the origins of mesenchymal cells during lung development, their crosstalk with the epithelium, and their role in lung diseases, particularly in chronic obstructive pulmonary disease.
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Affiliation(s)
- Amel Nasri
- Institute for Regenerative Medicine and Biotherapy, Université de Montpellier, INSERM, Centre Hospitalier Universitaire de Montpellier, 34000 Montpellier, France; (A.N.); (F.F.); (C.J.); (S.A.)
| | - Florent Foisset
- Institute for Regenerative Medicine and Biotherapy, Université de Montpellier, INSERM, Centre Hospitalier Universitaire de Montpellier, 34000 Montpellier, France; (A.N.); (F.F.); (C.J.); (S.A.)
| | - Engi Ahmed
- Department of Respiratory Diseases, Université de Montpellier, INSERM, Centre Hospitalier Universitaire de Montpellier, 34090 Montpellier, France; (E.A.); (Z.L.); (I.V.); (A.B.)
- PhyMedExp, Université de Montpellier, INSERM, Centre Hospitalier Universitaire de Montpellier, 34295 Montpellier, France
| | - Zakaria Lahmar
- Department of Respiratory Diseases, Université de Montpellier, INSERM, Centre Hospitalier Universitaire de Montpellier, 34090 Montpellier, France; (E.A.); (Z.L.); (I.V.); (A.B.)
- PhyMedExp, Université de Montpellier, INSERM, Centre Hospitalier Universitaire de Montpellier, 34295 Montpellier, France
| | - Isabelle Vachier
- Department of Respiratory Diseases, Université de Montpellier, INSERM, Centre Hospitalier Universitaire de Montpellier, 34090 Montpellier, France; (E.A.); (Z.L.); (I.V.); (A.B.)
| | - Christian Jorgensen
- Institute for Regenerative Medicine and Biotherapy, Université de Montpellier, INSERM, Centre Hospitalier Universitaire de Montpellier, 34000 Montpellier, France; (A.N.); (F.F.); (C.J.); (S.A.)
| | - Said Assou
- Institute for Regenerative Medicine and Biotherapy, Université de Montpellier, INSERM, Centre Hospitalier Universitaire de Montpellier, 34000 Montpellier, France; (A.N.); (F.F.); (C.J.); (S.A.)
| | - Arnaud Bourdin
- Department of Respiratory Diseases, Université de Montpellier, INSERM, Centre Hospitalier Universitaire de Montpellier, 34090 Montpellier, France; (E.A.); (Z.L.); (I.V.); (A.B.)
- PhyMedExp, Université de Montpellier, INSERM, Centre Hospitalier Universitaire de Montpellier, 34295 Montpellier, France
| | - John De Vos
- Institute for Regenerative Medicine and Biotherapy, Université de Montpellier, INSERM, Centre Hospitalier Universitaire de Montpellier, 34000 Montpellier, France; (A.N.); (F.F.); (C.J.); (S.A.)
- Department of Cell and Tissue Engineering, Université de Montpellier, Centre Hospitalier Universitaire de Montpellier, 34000 Montpellier, France
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Fayon M, Beaufils F. The lower respiratory airway wall in children in health and disease. ERJ Open Res 2021; 7:00874-2020. [PMID: 34322550 PMCID: PMC8311136 DOI: 10.1183/23120541.00874-2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 03/24/2021] [Indexed: 02/06/2023] Open
Abstract
Alone or in association with other lung or thorax component disorders, the airway wall (AWW) remains one of the most frequently involved elements in paediatric lung diseases. A myriad of AWW disorders will present with similar symptomatology. It is thus important for the clinician to reappraise the normal development and structure of the AWW to better understand the underlying disease patterns. We herein provide an overview of the structure of the AWW and a description of its development from the fetal period to adulthood. We also detail the most common AWW changes observed in several acute and chronic respiratory disorders as well as after cigarette smoke or chronic pollution exposure. We then describe the relationship between the AWW structure and lung function. In addition, we present the different ways of investigating the AWW structure, from biopsies and histological analyses to the most recent noninvasive airway (AW) imaging techniques. Understanding the pathophysiological processes involved in an individual patient will lead to the judicious choice of nonspecific or specific personalised treatments, in order to prevent irreversible AW damage.
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Affiliation(s)
- Michael Fayon
- Université de Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, INSERM U1045, Bordeaux Imaging Center, Bordeaux, France
- CHU de Bordeaux, Département de Pédiatrie, Service d'Exploration Fonctionnelle Respiratoire, Bordeaux, France
- INSERM, Centre d'Investigation Clinique (CIC1401), Bordeaux, France
| | - Fabien Beaufils
- Université de Bordeaux, Centre de Recherche Cardio-Thoracique de Bordeaux, INSERM U1045, Bordeaux Imaging Center, Bordeaux, France
- CHU de Bordeaux, Département de Pédiatrie, Service d'Exploration Fonctionnelle Respiratoire, Bordeaux, France
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Beaufils F, Esteves P, Enaud R, Germande O, Celle A, Marthan R, Trian T, Fayon M, Berger P. Mitochondria are involved in bronchial smooth muscle remodeling in severe preschool wheezers. J Allergy Clin Immunol 2021; 148:645-651.e11. [PMID: 33819511 DOI: 10.1016/j.jaci.2021.03.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 02/01/2021] [Accepted: 03/09/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND Bronchial remodeling is a key feature of asthma that is already present in preschoolers with wheezing. Moreover, bronchial smooth muscle (BSM) remodeling at preschool age is predictive of asthma at school age. However, the mechanism responsible for BSM remodeling in preschoolers with wheezing remains totally unknown. In contrast, in adult asthma, BSM remodeling has been associated with an increase in BSM cell proliferation related to increased mitochondrial mass and biogenesis triggered by an altered calcium homeostasis. Indeed, BSM cell proliferation was decreased in vitro by the calcium channel blocker gallopamil. OBJECTIVE Our aim was to investigate the mechanisms involved in BSM cell proliferation in preschoolers with severe wheezing, with special attention to the role of mitochondria and calcium signaling. METHODS Bronchial tissue samples obtained from 12 preschool controls without wheezing and 10 preschoolers with severe wheezing were used to measure BSM mass and establish primary BSM cell cultures. BSM cell proliferation was assessed by manual counting and flow cytometry, ATP content was assessed by bioluminescence, mitochondrial respiration was assessed by using either the Seahorse or Oroboros technique, mitochondrial mass and biogenesis were assessed by immunoblotting, and calcium response to carbachol was assessed by confocal microscopy. The effect of gallopamil was also evaluated. RESULTS BSM mass, cell proliferation, ATP content, mitochondrial respiration, mass and biogenesis, and calcium response were all increased in preschoolers with severe wheezing compared with in the controls. Gallopamil significantly decreased BSM mitochondrial biogenesis and mass, as well as cell proliferation. CONCLUSION Mitochondria are key players in BSM cell proliferation in preschoolers with severe wheezing and could represent a potential target to treat BSM remodeling at an early stage of the disease.
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Affiliation(s)
- Fabien Beaufils
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France; CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de Pédiatrie médicale, Bordeaux, France
| | - Pauline Esteves
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France
| | - Raphaël Enaud
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France; CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de Pédiatrie médicale, Bordeaux, France
| | - Ophélie Germande
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France
| | - Alexis Celle
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France
| | - Roger Marthan
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France; CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de Pédiatrie médicale, Bordeaux, France
| | - Thomas Trian
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France
| | - Michael Fayon
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France; CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de Pédiatrie médicale, Bordeaux, France
| | - Patrick Berger
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, Bordeaux, France; CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de Pédiatrie médicale, Bordeaux, France.
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Xing G, Woo AYH, Pan L, Lin B, Cheng MS. Recent Advances in β 2-Agonists for Treatment of Chronic Respiratory Diseases and Heart Failure. J Med Chem 2020; 63:15218-15242. [PMID: 33213146 DOI: 10.1021/acs.jmedchem.0c01195] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
β2-Adrenoceptor (β2-AR) agonists are widely used as bronchodilators. The emerge of ultralong acting β2-agonists is an important breakthrough in pulmonary medicine. In this review, we will provide mechanistic insights into the application of β2-agonists in asthma, chronic obstructive pulmonary disease (COPD), and heart failure (HF). Recent studies in β-AR signal transduction have revealed opposing functions of the β1-AR and the β2-AR on cardiomyocyte survival. Thus, β2-agonists and β-blockers in combination may represent a novel strategy for HF management. Allosteric modulation and biased agonism at the β2-AR also provide a theoretical basis for developing drugs with novel mechanisms of action and pharmacological profiles. Overlap of COPD and HF presents a substantial clinical challenge but also a unique opportunity for evaluation of the cardiovascular safety of β2-agonists. Further basic and clinical research along these lines can help us develop better drugs and innovative strategies for the management of these difficult-to-treat diseases.
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Affiliation(s)
- Gang Xing
- Department of Medicinal Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China.,Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Anthony Yiu-Ho Woo
- Department of Pharmacology, School of Life Sciences and Biopharmaceutics, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Li Pan
- Department of Medicinal Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China.,Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Bin Lin
- Department of Medicinal Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China.,Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
| | - Mao-Sheng Cheng
- Department of Medicinal Chemistry, School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, China.,Key Laboratory of Structure-Based Drug Design and Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China
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Wang KCW, Donovan GM, James AL, Noble PB. Asthma: Pharmacological degradation of the airway smooth muscle layer. Int J Biochem Cell Biol 2020; 126:105818. [PMID: 32707120 DOI: 10.1016/j.biocel.2020.105818] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 07/15/2020] [Accepted: 07/20/2020] [Indexed: 12/23/2022]
Abstract
Asthma: A disease characterised by excessive and variable airway narrowing, and pathologies of inflammation and remodelling, particularly thickening of the airway smooth muscle (ASM). Treatment approaches dilate narrowed airways and reduce inflammation; however, remodelling seems largely neglected. This review considers the evolution of remodelling in asthma and whether conventional hypotheses that inflammation causes ASM thickening has mislead the medical community into thinking that anti-inflammatories will remedy this ASM defect. There is instead reasonable evidence that ASM thickening occurs independently of inflammation, such that therapies should employ strategies to directly modify ASM growth. Lessons have been learned from the use of untargeted bronchial thermoplasty and there should also be consideration of pharmacological therapies to ablate ASM. We discuss several new approaches to target ASM remodelling in asthma. A major current obstacle is our inability to image the ASM layer and assess treatment response. In this regard, polarisation-sensitive optical coherence tomography offers future promise.
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Affiliation(s)
- Kimberley C W Wang
- School of Human Sciences, The University of Western Australia, Crawley, 6009, Western Australia, Australia; Telethon Kids Institute, The University of Western Australia, Nedlands, 6009, Western Australia, Australia.
| | - Graham M Donovan
- Department of Mathematics, University of Auckland, Auckland, 1142, New Zealand
| | - Alan L James
- Department of Pulmonary Physiology and Sleep Medicine, West Australian Sleep Disorders Research Institute, Sir Charles Gairdner Hospital, Nedlands, 6009, Western Australia, Australia; Medical School, The University of Western Australia, Nedlands, 6009, Western Australia, Australia
| | - Peter B Noble
- School of Human Sciences, The University of Western Australia, Crawley, 6009, Western Australia, Australia
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Pan S, Deshpande DA. Reply to Letter to the Editor: "Bnip3 as a potential target to treat airway smooth muscle remodeling in asthma?". Am J Physiol Lung Cell Mol Physiol 2020; 318:L213-L214. [PMID: 31910034 DOI: 10.1152/ajplung.00470.2019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Affiliation(s)
- Shi Pan
- Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Deepak A Deshpande
- Center for Translational Medicine, Jane and Leonard Korman Lung Center, Thomas Jefferson University, Philadelphia, Pennsylvania
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Gu Y, Yu X, Li X, Wang X, Gao X, Wang M, Wang S, Li X, Zhang Y. Inhibitory effect of mabuterol on proliferation of rat ASMCs induced by PDGF-BB via regulating [Ca2+]i and mitochondrial fission/fusion. Chem Biol Interact 2019; 307:63-72. [DOI: 10.1016/j.cbi.2019.04.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Revised: 03/19/2019] [Accepted: 04/17/2019] [Indexed: 02/08/2023]
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Fayon M, Lacoste-Rodrigues A, Barat P, Helbling JC, Nacka F, Berger P, Moisan MP, Corcuff JB. Nasal airway epithelial cell IL-6 and FKBP51 gene expression and steroid sensitivity in asthmatic children. PLoS One 2017; 12:e0177051. [PMID: 28493984 PMCID: PMC5426685 DOI: 10.1371/journal.pone.0177051] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 04/21/2017] [Indexed: 12/11/2022] Open
Abstract
Background Many asthmatic patients exhibit uncontrolled asthma despite high-dose inhaled corticosteroids (ICS). Airway epithelial cells (AEC) have distinct activation profiles that can influence ICS response. Objectives A pilot study to identify gene expression markers of AEC dysfunction and markers of corticosteroid sensitivity in asthmatic and non-asthmatic control children, for comparison with published reports in adults. Methods AEC were obtained by nasal brushings and primary submerged cultures, and incubated in control conditions or in the presence of 10 ng/ml TNFalpha, 10-8M dexamethasone, or both. RT-PCR-based expression of FKBP51 (a steroid hormone receptor signalling regulator), NF-kB, IL-6, LIF (an IL-6 family neurotrophic cytokine), serpinB2 (which inhibits plasminogen activation and promotes fibrin deposition) and porin (a marker of mitochondrial mass) were determined. Results 6 patients without asthma (median age 11yr; min-max: 7–13), 8 with controlled asthma (11yr, 7–13; median daily fluticasone dose = 100 μg), and 4 with uncontrolled asthma (12yr, 7–14; 1000 μg fluticasone daily) were included. Baseline expression of LIF mRNA was significantly increased in uncontrolled vs controlled asthmatic children. TNFalpha significantly increased LIF expression in uncontrolled asthma. A similar trend was observed regarding IL-6. Dexamethasone significantly upregulated FKBP51 expression in all groups but the response was blunted in asthmatic children. No significant upregulation was identified regarding NF-kB, serpinB2 and porin. Conclusion LIF and FKBP51 expression in epithelial cells were the most interesting markers of AEC dysfunction/response to corticosteroid treatment.
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Affiliation(s)
- Michael Fayon
- Université de Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Bordeaux, France
- CHU de Bordeaux, Centre d’Investigation Clinique (CIC 1401), Bordeaux, France
- * E-mail:
| | - Aurelie Lacoste-Rodrigues
- Université de Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Bordeaux, France
- CHU de Bordeaux, Centre d’Investigation Clinique (CIC 1401), Bordeaux, France
| | - Pascal Barat
- CHU de Bordeaux, Centre d’Investigation Clinique (CIC 1401), Bordeaux, France
- Université de Bordeaux, Nutrition and Integrative Neurobiology, Bordeaux, France
| | - Jean-Christophe Helbling
- Université de Bordeaux, Nutrition and Integrative Neurobiology, Bordeaux, France
- INRA, UMR1286, Nutrition and Integrative Neurobiology, Bordeaux, France
| | - Fabienne Nacka
- CHU de Bordeaux, Centre d’Investigation Clinique (CIC 1401), Bordeaux, France
| | - Patrick Berger
- Université de Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Bordeaux, France
- CHU de Bordeaux, Centre d’Investigation Clinique (CIC 1401), Bordeaux, France
| | - Marie-Pierre Moisan
- Université de Bordeaux, Nutrition and Integrative Neurobiology, Bordeaux, France
- INRA, UMR1286, Nutrition and Integrative Neurobiology, Bordeaux, France
| | - Jean-Benoit Corcuff
- Université de Bordeaux, Nutrition and Integrative Neurobiology, Bordeaux, France
- INRA, UMR1286, Nutrition and Integrative Neurobiology, Bordeaux, France
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Prakash YS. Emerging concepts in smooth muscle contributions to airway structure and function: implications for health and disease. Am J Physiol Lung Cell Mol Physiol 2016; 311:L1113-L1140. [PMID: 27742732 DOI: 10.1152/ajplung.00370.2016] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2016] [Accepted: 10/06/2016] [Indexed: 12/15/2022] Open
Abstract
Airway structure and function are key aspects of normal lung development, growth, and aging, as well as of lung responses to the environment and the pathophysiology of important diseases such as asthma, chronic obstructive pulmonary disease, and fibrosis. In this regard, the contributions of airway smooth muscle (ASM) are both functional, in the context of airway contractility and relaxation, as well as synthetic, involving production and modulation of extracellular components, modulation of the local immune environment, cellular contribution to airway structure, and, finally, interactions with other airway cell types such as epithelium, fibroblasts, and nerves. These ASM contributions are now found to be critical in airway hyperresponsiveness and remodeling that occur in lung diseases. This review emphasizes established and recent discoveries that underline the central role of ASM and sets the stage for future research toward understanding how ASM plays a central role by being both upstream and downstream in the many interactive processes that determine airway structure and function in health and disease.
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Affiliation(s)
- Y S Prakash
- Departments of Anesthesiology, and Physiology & Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
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Wang SY, Freeman MR, Sathish V, Thompson MA, Pabelick CM, Prakash YS. Sex Steroids Influence Brain-Derived Neurotropic Factor Secretion From Human Airway Smooth Muscle Cells. J Cell Physiol 2015; 231:1586-92. [PMID: 26566264 DOI: 10.1002/jcp.25254] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 11/11/2015] [Indexed: 12/15/2022]
Abstract
Brain derived neurotropic factor (BDNF) is emerging as an important player in airway inflammation, remodeling, and hyperreactivity. Separately, there is increasing evidence that sex hormones contribute to pathophysiology in the lung. BDNF and sex steroid signaling are thought to be intricately linked in the brain. There is currently little information on BDNF and sex steroid interactions in the airway but is relevant to understanding growth factor signaling in the context of asthma in men versus women. In this study, we assessed the effect of sex steroids on BDNF expression and secretion in human airway smooth muscle (ASM). Human ASM was treated with estrogen (E2 ) or testosterone (T, 10 nM each) and intracellular BDNF and secreted BDNF measured. E2 and T significantly reduced secretion of BDNF; effects prevented by estrogen and androgen receptor inhibitor, ICI 182,780 (1 μM), and flutamide (10 μM), respectively. Interestingly, no significant changes were observed in intracellular BDNF mRNA or protein expression. High affinity BDNF receptor, TrkB, was not altered by E2 or T. E2 (but not T) significantly increased intracellular cyclic AMP levels. Notably, Epac1 and Epac2 expression were significantly reduced by E2 and T. Furthermore, SNARE complex protein SNAP25 was decreased. Overall, these novel data suggest that physiologically relevant concentrations of E2 or T inhibit BDNF secretion in human ASM, suggesting a potential interaction of sex steroids with BDNF in the airway that is different from brain. The relevance of sex steroid-BDNF interactions may lie in their overall contribution to airway diseases such as asthma.
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Affiliation(s)
- Sheng-Yu Wang
- Department of Respiratory Medicine, First Affiliated Hospital of Xi'an Medical University, Xi'an, Shaanxi, PR China.,Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota
| | | | - Venkatachalem Sathish
- Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota.,Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
| | | | - Christina M Pabelick
- Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota.,Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
| | - Y S Prakash
- Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota.,Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
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Faksh A, Britt RD, Vogel ER, Thompson MA, Pandya HC, Martin RJ, Pabelick CM, Prakash YS. TLR3 activation increases chemokine expression in human fetal airway smooth muscle cells. Am J Physiol Lung Cell Mol Physiol 2015; 310:L202-11. [PMID: 26589477 DOI: 10.1152/ajplung.00151.2015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Accepted: 11/14/2015] [Indexed: 11/22/2022] Open
Abstract
Viral infections, such as respiratory syncytial virus and rhinovirus, adversely affect neonatal and pediatric populations, resulting in significant lung morbidity, including acute asthma exacerbation. Studies in adults have demonstrated that human airway smooth muscle (ASM) cells modulate inflammation through their ability to secrete inflammatory cytokines and chemokines. The role of ASM in the developing airway during infection remains undefined. In our study, we used human fetal ASM cells as an in vitro model to examine the effect of Toll-like receptor (TLR) agonists on chemokine secretion. We found that fetal ASM express multiple TLRs, including TLR3 and TLR4, which are implicated in the pathogenesis of respiratory syncytial virus and rhinovirus infection. Cells were treated with TLR agonists, polyinosinic-polycytidylic acid [poly(I:C)] (TLR3 agonist), lipopolysaccharide (TLR4 agonist), or R848 (TLR7/8 agonist), and IL-8 and chemokine (C-C motif) ligand 5 (CCL5) secretion were evaluated. Interestingly, poly(I:C), but neither lipopolysaccharide nor R848, increased IL-8 and chemokine (C-C motif) ligand 5 secretion. Examination of signaling pathways suggested that the poly(I:C) effects in fetal ASM involve TLR and ERK signaling, in addition to another major inflammatory pathway, NF-κB. Moreover, there are variations between fetal and adult ASM with respect to poly(I:C) effects on signaling pathways. Pharmacological inhibition suggested that ERK pathways mediate poly(I:C) effects. Overall, our data show that poly(I:C) initiates activation of proinflammatory pathways in developing ASM, which may contribute to immune responses to infection and exacerbation of asthma.
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Affiliation(s)
- Arij Faksh
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine, Mayo Clinic, Rochester, Minnesota
| | - Rodney D Britt
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota
| | - Elizabeth R Vogel
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota; Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota
| | | | - Hitesh C Pandya
- Department of Pediatrics, University of Leicester, Leicester, United Kingdom; Department of Immunology, University of Leicester, Leicester, United Kingdom; and
| | - Richard J Martin
- Department of Pediatrics, Division of Neonatology, Rainbow Babies Children's Hospital, Case Western Reserve University, Cleveland, Ohio
| | - Christina M Pabelick
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota; Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota
| | - Y S Prakash
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota; Department of Anesthesiology, Mayo Clinic, Rochester, Minnesota;
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