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Mittelheisser V, Gensbittel V, Bonati L, Li W, Tang L, Goetz JG. Evidence and therapeutic implications of biomechanically regulated immunosurveillance in cancer and other diseases. NATURE NANOTECHNOLOGY 2024; 19:281-297. [PMID: 38286876 DOI: 10.1038/s41565-023-01535-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 09/26/2023] [Indexed: 01/31/2024]
Abstract
Disease progression is usually accompanied by changes in the biochemical composition of cells and tissues and their biophysical properties. For instance, hallmarks of cancer include the stiffening of tissues caused by extracellular matrix remodelling and the softening of individual cancer cells. In this context, accumulating evidence has shown that immune cells sense and respond to mechanical signals from the environment. However, the mechanisms regulating these mechanical aspects of immune surveillance remain partially understood. The growing appreciation for the 'mechano-immunology' field has urged researchers to investigate how immune cells sense and respond to mechanical cues in various disease settings, paving the way for the development of novel engineering strategies that aim at mechanically modulating and potentiating immune cells for enhanced immunotherapies. Recent pioneer developments in this direction have laid the foundations for leveraging 'mechanical immunoengineering' strategies to treat various diseases. This Review first outlines the mechanical changes occurring during pathological progression in several diseases, including cancer, fibrosis and infection. We next highlight the mechanosensitive nature of immune cells and how mechanical forces govern the immune responses in different diseases. Finally, we discuss how targeting the biomechanical features of the disease milieu and immune cells is a promising strategy for manipulating therapeutic outcomes.
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Affiliation(s)
- Vincent Mittelheisser
- Tumor Biomechanics, INSERM UMR_S1109, Strasbourg, France
- Université de Strasbourg, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Equipe Labellisée Ligue Contre le Cancer, Strasbourg, France
| | - Valentin Gensbittel
- Tumor Biomechanics, INSERM UMR_S1109, Strasbourg, France
- Université de Strasbourg, Strasbourg, France
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France
- Equipe Labellisée Ligue Contre le Cancer, Strasbourg, France
| | - Lucia Bonati
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Weilin Li
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
| | - Li Tang
- Institute of Bioengineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
- Institute of Materials Science and Engineering, EPFL, Lausanne, Switzerland.
| | - Jacky G Goetz
- Tumor Biomechanics, INSERM UMR_S1109, Strasbourg, France.
- Université de Strasbourg, Strasbourg, France.
- Fédération de Médecine Translationnelle de Strasbourg (FMTS), Strasbourg, France.
- Equipe Labellisée Ligue Contre le Cancer, Strasbourg, France.
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2
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Thorpe AE, Donovan C, Kim RY, Vindin HJ, Zakarya R, Miyai H, Chan YL, van Reyk D, Chen H, Oliver BG. Third-Hand Exposure to E-Cigarette Vapour Induces Pulmonary Effects in Mice. TOXICS 2023; 11:749. [PMID: 37755759 PMCID: PMC10536515 DOI: 10.3390/toxics11090749] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 08/18/2023] [Accepted: 08/26/2023] [Indexed: 09/28/2023]
Abstract
In the last decade, e-cigarette usage has increased, with an estimated 82 million e-cigarette users globally. This is, in part, due to the common opinion that they are "healthier" than tobacco cigarettes or simply "water vapour". Third-hand e-vapour exposure is the chemical residue left behind from e-cigarette aerosols, which is of concern due to its invisible nature, especially among young children. However, there is limited information surrounding third-hand e-vapour exposure. This study aimed to investigate the pulmonary effects of sub-chronic third-hand e-vapour exposure in a murine model. BALB/c mice (4 weeks of age) were exposed to a towel containing nicotine free (0 mg) e-vapour, nicotine (18 mg) e-vapour, or no e-vapour (sham) and replaced daily for 4 weeks. At the endpoint, lung function was assessed, and bronchoalveolar lavage fluid and lungs were collected to measure inflammation and fibrosis. Mice exposed to third-hand e-vapour without nicotine had alveolar enlargement compared to sham exposed controls. Mice exposed to third-hand e-vapour with nicotine had reduced bronchial responsiveness to provocation, increased epithelial thickening in large airways, increased epithelial layers in small airways, alveolar enlargement, and increased small airway collagen deposition, compared to sham exposed controls. In conclusion, our study shows that third-hand e-vapour exposure, particularly in the presence of nicotine, negatively affects the lung health of mice and highlights the need for greater public awareness surrounding the dangers of third-hand exposure to e-cigarette vapour.
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Affiliation(s)
- Andrew E. Thorpe
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia (Y.L.C.); (H.C.)
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, Macquarie University, Glebe, NSW 2037, Australia
| | - Chantal Donovan
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia (Y.L.C.); (H.C.)
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, Macquarie University, Glebe, NSW 2037, Australia
- Immune Health Program, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2000, Australia
| | - Richard Y. Kim
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia (Y.L.C.); (H.C.)
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, Macquarie University, Glebe, NSW 2037, Australia
- Immune Health Program, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW 2000, Australia
| | - Howard J. Vindin
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, Macquarie University, Glebe, NSW 2037, Australia
- School of Life and Environmental Sciences, Faculty of Science, Charles Perkins Centre, The University of Sydney, Sydney, NSW 2006, Australia
| | - Razia Zakarya
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia (Y.L.C.); (H.C.)
- Epigenetics of Chronic Disease, Woolcock Institute of Medical Research, Macquarie University, Glebe, NSW 2037, Australia
| | - Hanna Miyai
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia (Y.L.C.); (H.C.)
| | - Yik L. Chan
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia (Y.L.C.); (H.C.)
| | - David van Reyk
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia (Y.L.C.); (H.C.)
| | - Hui Chen
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia (Y.L.C.); (H.C.)
| | - Brian G. Oliver
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW 2007, Australia (Y.L.C.); (H.C.)
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, Macquarie University, Glebe, NSW 2037, Australia
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3
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Mottais A, Riberi L, Falco A, Soccal S, Gohy S, De Rose V. Epithelial-Mesenchymal Transition Mechanisms in Chronic Airway Diseases: A Common Process to Target? Int J Mol Sci 2023; 24:12412. [PMID: 37569787 PMCID: PMC10418908 DOI: 10.3390/ijms241512412] [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: 05/15/2023] [Revised: 07/30/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
Epithelial-to-mesenchymal transition (EMT) is a reversible process, in which epithelial cells lose their epithelial traits and acquire a mesenchymal phenotype. This transformation has been described in different lung diseases, such as lung cancer, interstitial lung diseases, asthma, chronic obstructive pulmonary disease and other muco-obstructive lung diseases, such as cystic fibrosis and non-cystic fibrosis bronchiectasis. The exaggerated chronic inflammation typical of these pulmonary diseases can induce molecular reprogramming with subsequent self-sustaining aberrant and excessive profibrotic tissue repair. Over time this process leads to structural changes with progressive organ dysfunction and lung function impairment. Although having common signalling pathways, specific triggers and regulation mechanisms might be present in each disease. This review aims to describe the various mechanisms associated with fibrotic changes and airway remodelling involved in chronic airway diseases. Having better knowledge of the mechanisms underlying the EMT process may help us to identify specific targets and thus lead to the development of novel therapeutic strategies to prevent or limit the onset of irreversible structural changes.
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Affiliation(s)
- Angélique Mottais
- Pole of Pneumology, ENT, and Dermatology, Institute of Experimental and Clinical Research, Université Catholique de Louvain, 1200 Brussels, Belgium; (A.M.); (S.G.)
| | - Luca Riberi
- Postgraduate School in Respiratory Medicine, University of Torino, 10124 Torino, Italy; (L.R.); (A.F.); (S.S.)
| | - Andrea Falco
- Postgraduate School in Respiratory Medicine, University of Torino, 10124 Torino, Italy; (L.R.); (A.F.); (S.S.)
| | - Simone Soccal
- Postgraduate School in Respiratory Medicine, University of Torino, 10124 Torino, Italy; (L.R.); (A.F.); (S.S.)
| | - Sophie Gohy
- Pole of Pneumology, ENT, and Dermatology, Institute of Experimental and Clinical Research, Université Catholique de Louvain, 1200 Brussels, Belgium; (A.M.); (S.G.)
- Department of Pneumology, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
- Cystic Fibrosis Reference Centre, Cliniques Universitaires Saint-Luc, 1200 Brussels, Belgium
| | - Virginia De Rose
- Department of Molecular Biotechnology and Health Sciences, University of Torino, 10126 Torino, Italy
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Hsieh A, Assadinia N, Hackett TL. Airway remodeling heterogeneity in asthma and its relationship to disease outcomes. Front Physiol 2023; 14:1113100. [PMID: 36744026 PMCID: PMC9892557 DOI: 10.3389/fphys.2023.1113100] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 01/05/2023] [Indexed: 01/20/2023] Open
Abstract
Asthma affects an estimated 262 million people worldwide and caused over 461,000 deaths in 2019. The disease is characterized by chronic airway inflammation, reversible bronchoconstriction, and airway remodeling. Longitudinal studies have shown that current treatments for asthma (inhaled bronchodilators and corticosteroids) can reduce the frequency of exacerbations, but do not modify disease outcomes over time. Further, longitudinal studies in children to adulthood have shown that these treatments do not improve asthma severity or fixed airflow obstruction over time. In asthma, fixed airflow obstruction is caused by remodeling of the airway wall, but such airway remodeling also significantly contributes to airway closure during bronchoconstriction in acute asthmatic episodes. The goal of the current review is to understand what is known about the heterogeneity of airway remodeling in asthma and how this contributes to the disease process. We provide an overview of the existing knowledge on airway remodeling features observed in asthma, including loss of epithelial integrity, mucous cell metaplasia, extracellular matrix remodeling in both the airways and vessels, angiogenesis, and increased smooth muscle mass. While such studies have provided extensive knowledge on different aspects of airway remodeling, they have relied on biopsy sampling or pathological assessment of lungs from fatal asthma patients, which have limitations for understanding airway heterogeneity and the entire asthma syndrome. To further understand the heterogeneity of airway remodeling in asthma, we highlight the potential of in vivo imaging tools such as computed tomography and magnetic resonance imaging. Such volumetric imaging tools provide the opportunity to assess the heterogeneity of airway remodeling within the whole lung and have led to the novel identification of heterogenous gas trapping and mucus plugging as important predictors of patient outcomes. Lastly, we summarize the current knowledge of modification of airway remodeling with available asthma therapeutics to highlight the need for future studies that use in vivo imaging tools to assess airway remodeling outcomes.
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Affiliation(s)
- Aileen Hsieh
- Centre for Heart Lung Innovation, St. Paul’s Hospital, Vancouver, BC, Canada,Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - Najmeh Assadinia
- Centre for Heart Lung Innovation, St. Paul’s Hospital, Vancouver, BC, Canada,Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada
| | - Tillie-Louise Hackett
- Centre for Heart Lung Innovation, St. Paul’s Hospital, Vancouver, BC, Canada,Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, BC, Canada,*Correspondence: Tillie-Louise Hackett,
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5
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Narasimhan H, Wu Y, Goplen NP, Sun J. Immune determinants of chronic sequelae after respiratory viral infection. Sci Immunol 2022; 7:eabm7996. [DOI: 10.1126/sciimmunol.abm7996] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The acute effects of various respiratory viral infections have been well studied, with extensive characterization of the clinical presentation as well as viral pathogenesis and host responses. However, over the course of the recent COVID-19 pandemic, the incidence and prevalence of chronic sequelae after acute viral infections have become increasingly appreciated as a serious health concern. Post-acute sequelae of COVID-19, alternatively described as “long COVID-19,” are characterized by symptoms that persist for longer than 28 days after recovery from acute illness. Although there exists substantial heterogeneity in the nature of the observed sequelae, this phenomenon has also been observed in the context of other respiratory viral infections including influenza virus, respiratory syncytial virus, rhinovirus, severe acute respiratory syndrome coronavirus, and Middle Eastern respiratory syndrome coronavirus. In this Review, we discuss the various sequelae observed following important human respiratory viral pathogens and our current understanding of the immunological mechanisms underlying the failure of restoration of homeostasis in the lung.
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Affiliation(s)
- Harish Narasimhan
- Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA 22908, USA
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA 22908, USA
- Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - Yue Wu
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA 22908, USA
- Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - Nick P. Goplen
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic, MN 55905, USA
| | - Jie Sun
- Carter Immunology Center, University of Virginia, Charlottesville, VA 22908, USA
- Division of Infectious Diseases and International Health, Department of Medicine, University of Virginia, Charlottesville, VA 22908, USA
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia, Charlottesville, VA 22908, USA
- Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
- Division of Pulmonary and Critical Medicine, Department of Medicine, Mayo Clinic, Rochester, MN 55905, USA
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Esteves P, Allard B, Celle A, Dupin I, Maurat E, Ousova O, Thumerel M, Dupuy JW, Leste-Lasserre T, Marthan R, Girodet PO, Trian T, Berger P. Asthmatic bronchial smooth muscle increases rhinovirus replication within the bronchial epithelium. Cell Rep 2022; 38:110571. [PMID: 35354045 DOI: 10.1016/j.celrep.2022.110571] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 12/13/2021] [Accepted: 03/04/2022] [Indexed: 11/27/2022] Open
Abstract
Rhinovirus (RV) infection of the bronchial epithelium is implicated in the vast majority of severe asthma exacerbations. Interestingly, the susceptibility of bronchial epithelium to RV infection is increased in persons with asthma. Bronchial smooth muscle (BSM) remodeling is an important feature of severe asthma pathophysiology, and its reduction using bronchial thermoplasty has been associated with a significant decrease in the exacerbation rate. We hypothesized that asthmatic BSM can play a role in RV infection of the bronchial epithelium. Using an original co-culture model between bronchial epithelium and BSM cells, we show that asthmatic BSM cells increase RV replication in bronchial epithelium following RV infection. These findings are related to the increased production of CCL20 by asthmatic BSM cells. Moreover, we demonstrate an original downregulation of the activity of the epithelial protein kinase RNA-activated (PKR) antiviral pathway. Finally, we identify a direct bottom-up effect of asthmatic BSM cells on bronchial epithelium susceptibility to RV infection.
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Affiliation(s)
- Pauline Esteves
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, 33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux U1045, Plateforme Transcriptome Neurocentre Magendie U1215, Functionnal Genomics Center (CGFB) Proteomics Facility, CIC 1401, PTIB - Hôpital Xavier Arnozan, Avenue du Haut Lévêque, 33600 PESSAC, 33000 Bordeaux, France
| | - Benoit Allard
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, 33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux U1045, Plateforme Transcriptome Neurocentre Magendie U1215, Functionnal Genomics Center (CGFB) Proteomics Facility, CIC 1401, PTIB - Hôpital Xavier Arnozan, Avenue du Haut Lévêque, 33600 PESSAC, 33000 Bordeaux, France
| | - Alexis Celle
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, 33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux U1045, Plateforme Transcriptome Neurocentre Magendie U1215, Functionnal Genomics Center (CGFB) Proteomics Facility, CIC 1401, PTIB - Hôpital Xavier Arnozan, Avenue du Haut Lévêque, 33600 PESSAC, 33000 Bordeaux, France
| | - Isabelle Dupin
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, 33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux U1045, Plateforme Transcriptome Neurocentre Magendie U1215, Functionnal Genomics Center (CGFB) Proteomics Facility, CIC 1401, PTIB - Hôpital Xavier Arnozan, Avenue du Haut Lévêque, 33600 PESSAC, 33000 Bordeaux, France
| | - Elise Maurat
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, 33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux U1045, Plateforme Transcriptome Neurocentre Magendie U1215, Functionnal Genomics Center (CGFB) Proteomics Facility, CIC 1401, PTIB - Hôpital Xavier Arnozan, Avenue du Haut Lévêque, 33600 PESSAC, 33000 Bordeaux, France
| | - Olga Ousova
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, 33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux U1045, Plateforme Transcriptome Neurocentre Magendie U1215, Functionnal Genomics Center (CGFB) Proteomics Facility, CIC 1401, PTIB - Hôpital Xavier Arnozan, Avenue du Haut Lévêque, 33600 PESSAC, 33000 Bordeaux, France
| | - Matthieu Thumerel
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, 33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux U1045, Plateforme Transcriptome Neurocentre Magendie U1215, Functionnal Genomics Center (CGFB) Proteomics Facility, CIC 1401, PTIB - Hôpital Xavier Arnozan, Avenue du Haut Lévêque, 33600 PESSAC, 33000 Bordeaux, France; CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de pharmacologie, CIC 1401, Service de chirurgie thoracique, 33604 Pessac, France
| | - Jean-William Dupuy
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, 33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux U1045, Plateforme Transcriptome Neurocentre Magendie U1215, Functionnal Genomics Center (CGFB) Proteomics Facility, CIC 1401, PTIB - Hôpital Xavier Arnozan, Avenue du Haut Lévêque, 33600 PESSAC, 33000 Bordeaux, France
| | - Thierry Leste-Lasserre
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, 33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux U1045, Plateforme Transcriptome Neurocentre Magendie U1215, Functionnal Genomics Center (CGFB) Proteomics Facility, CIC 1401, PTIB - Hôpital Xavier Arnozan, Avenue du Haut Lévêque, 33600 PESSAC, 33000 Bordeaux, France
| | - Roger Marthan
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, 33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux U1045, Plateforme Transcriptome Neurocentre Magendie U1215, Functionnal Genomics Center (CGFB) Proteomics Facility, CIC 1401, PTIB - Hôpital Xavier Arnozan, Avenue du Haut Lévêque, 33600 PESSAC, 33000 Bordeaux, France; CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de pharmacologie, CIC 1401, Service de chirurgie thoracique, 33604 Pessac, France
| | - Pierre-Olivier Girodet
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, 33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux U1045, Plateforme Transcriptome Neurocentre Magendie U1215, Functionnal Genomics Center (CGFB) Proteomics Facility, CIC 1401, PTIB - Hôpital Xavier Arnozan, Avenue du Haut Lévêque, 33600 PESSAC, 33000 Bordeaux, France; CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de pharmacologie, CIC 1401, Service de chirurgie thoracique, 33604 Pessac, France
| | - Thomas Trian
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, 33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux U1045, Plateforme Transcriptome Neurocentre Magendie U1215, Functionnal Genomics Center (CGFB) Proteomics Facility, CIC 1401, PTIB - Hôpital Xavier Arnozan, Avenue du Haut Lévêque, 33600 PESSAC, 33000 Bordeaux, France.
| | - Patrick Berger
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, Département de Pharmacologie, CIC 1401, 33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux U1045, Plateforme Transcriptome Neurocentre Magendie U1215, Functionnal Genomics Center (CGFB) Proteomics Facility, CIC 1401, PTIB - Hôpital Xavier Arnozan, Avenue du Haut Lévêque, 33600 PESSAC, 33000 Bordeaux, France; CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de pharmacologie, CIC 1401, Service de chirurgie thoracique, 33604 Pessac, France
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7
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Celle A, Esteves P, Cardouat G, Beaufils F, Eyraud E, Dupin I, Maurat E, Lacomme S, Ousova O, Begueret H, Thumerel M, Marthan R, Girodet PO, Berger P, Trian T. Rhinovirus infection of bronchial epithelium induces specific bronchial smooth muscle cell migration of severe asthmatic patients. J Allergy Clin Immunol 2022; 150:104-113. [PMID: 35143808 DOI: 10.1016/j.jaci.2022.01.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 01/17/2022] [Accepted: 01/21/2022] [Indexed: 10/19/2022]
Abstract
BACKGROUND Patients with severe asthma show an increase in both exacerbation frequency and bronchial smooth muscle (BSM) mass. Rhinovirus (RV) infection of the bronchial epithelium (BE) is the main trigger of asthma exacerbations. Histological analysis of biopsies shows that a close connection between BE and hypertrophic BSM is a criterion for severity of asthma. OBJECTIVE We hypothesized that RV infection of BE specifically increases asthmatic BSM cell migration. METHODS Serum samples, biopsies or BSM cells were obtained from 86 patients with severe asthma and 31 non-asthmatic subjects. BE cells from non-asthmatic subjects were cultured in an air-liquid interface and exposed to RV-16. Migration of BSM cells was assessed in response to BE supernatant using chemotaxis assays. Chemokine concentrations were analyzed by transcriptomics and ELISAs. Immunocytochemistry, western blotting and flow cytometry were used to quantify CXCR3 isoform distribution. CXCR3 downstream signaling pathways were assessed by calcium imaging and western blots. RESULTS BSM cells from severe asthmatic patients specifically migrated toward RV-infected BE, whereas those from non-asthmatic subjects did not. This specific migration is driven by BE CXCL10, which was increased in vitro in response to RV infection as well as in vivo in serum from exacerbating patients with severe asthma. The mechanism is related to both decreased expression and activation of the CXCR3-B-specific isoform in severe asthmatic BSM cells. CONCLUSION We have demonstrated a novel mechanism of BSM remodeling in severe asthmatic patients following RV exacerbation. This study highlights the CXCL10/CXCR3-A axis as a potential therapeutic target in severe asthma.
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Affiliation(s)
- Alexis Celle
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4-33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, F-33000 Bordeaux, France
| | - Pauline Esteves
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4-33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, F-33000 Bordeaux, France
| | - Guillaume Cardouat
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4-33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, F-33000 Bordeaux, France
| | - Fabien Beaufils
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4-33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, F-33000 Bordeaux, France; CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de chirurgie, CIC 1401
| | - Edmée Eyraud
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4-33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, F-33000 Bordeaux, France
| | - Isabelle Dupin
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4-33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, F-33000 Bordeaux, France
| | - Elise Maurat
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4-33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, F-33000 Bordeaux, France
| | - Sabrina Lacomme
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4-33000 Bordeaux, France
| | - Olga Ousova
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4-33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, F-33000 Bordeaux, France
| | - Hugues Begueret
- CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de chirurgie, CIC 1401
| | - Matthieu Thumerel
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4-33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, F-33000 Bordeaux, France; CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de chirurgie, CIC 1401
| | - Roger Marthan
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4-33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, F-33000 Bordeaux, France; CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de chirurgie, CIC 1401
| | - Pierre-Olivier Girodet
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4-33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, F-33000 Bordeaux, France; CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de chirurgie, CIC 1401
| | - Patrick Berger
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4-33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, F-33000 Bordeaux, France; CHU de Bordeaux, Service d'exploration fonctionnelle respiratoire, Service de chirurgie, CIC 1401
| | - Thomas Trian
- Univ-Bordeaux, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CNRS, INSERM, Bordeaux Imaging Center, BIC, UMS 3420, US 4-33000 Bordeaux, France; INSERM, Centre de Recherche Cardio-thoracique de Bordeaux, U1045, CIC 1401, F-33000 Bordeaux, France.
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8
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Dekkers BG, Saad SI, van Spelde LJ, Burgess JK. Basement membranes in obstructive pulmonary diseases. Matrix Biol Plus 2021; 12:100092. [PMID: 34877523 PMCID: PMC8632995 DOI: 10.1016/j.mbplus.2021.100092] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 11/04/2021] [Accepted: 11/07/2021] [Indexed: 12/24/2022] Open
Abstract
Basement membrane composition is changed in the airways of patients with obstructive airway diseases. Basement membrane changes are linked to disease characteristics in patients. Mechanisms behind the altered BM composition remain to be elucidated. Laminin and collagen IV affect key pathological processes in obstructive airway diseases.
Increased and changed deposition of extracellular matrix proteins is a key feature of airway wall remodeling in obstructive pulmonary diseases, including asthma and chronic obstructive pulmonary disease. Studies have highlighted that the deposition of various basement membrane proteins in the lung tissue is altered and that these changes reflect tissue compartment specificity. Inflammatory responses in both diseases may result in the deregulation of production and degradation of these proteins. In addition to their role in tissue development and integrity, emerging evidence indicates that basement membrane proteins also actively modulate cellular processes in obstructive airway diseases, contributing to disease development, progression and maintenance. In this review, we summarize the changes in basement membrane composition in airway remodeling in obstructive airway diseases and explore their potential application as innovative targets for treatment development.
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Key Words
- ADAM9, a metalloproteinase domain 9
- ASM, airway smooth muscle
- Airway inflammation
- Airway remodeling
- Asthma
- BM, basement membrane
- COPD, chronic obstructive pulmonary disease
- Chronic obstructive pulmonary disease
- Col IV, collagen IV
- Collagen IV
- ECM, extracellular matrix
- LN, laminin
- Laminin
- MMP, matrix metalloproteinase
- TIMP, tissue inhibitors of metalloproteinase
- Th2, T helper 2
- VSM, vascular smooth muscle
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Affiliation(s)
- Bart G.J. Dekkers
- University of Groningen, University Medical Center Groningen, Department of Clinical Pharmacy and Pharmacology, Groningen, The Netherlands
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
- Corresponding author at: Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands.
| | - Shehab I. Saad
- University of Groningen, University Medical Centre Groningen, Department of Pathology & Medical Biology, Experimental Pulmonology and Inflammation Research, Groningen, The Netherlands
| | - Leah J. van Spelde
- University of Groningen, University Medical Centre Groningen, Department of Pathology & Medical Biology, Experimental Pulmonology and Inflammation Research, Groningen, The Netherlands
| | - Janette K. Burgess
- University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
- University of Groningen, University Medical Centre Groningen, Department of Pathology & Medical Biology, Experimental Pulmonology and Inflammation Research, Groningen, The Netherlands
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9
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Oliver BG. Food for thought: why is there more airway smooth muscle in asthma? Eur Respir J 2021; 58:58/5/2101565. [PMID: 34824128 DOI: 10.1183/13993003.01565-2021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 06/24/2021] [Indexed: 11/05/2022]
Affiliation(s)
- Brian G Oliver
- School of Life Sciences, Faculty of Science, University of Technology Sydney, Sydney, Australia .,Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, Sydney, Australia
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10
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Pfisterer K, Shaw LE, Symmank D, Weninger W. The Extracellular Matrix in Skin Inflammation and Infection. Front Cell Dev Biol 2021; 9:682414. [PMID: 34295891 PMCID: PMC8290172 DOI: 10.3389/fcell.2021.682414] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 05/25/2021] [Indexed: 12/12/2022] Open
Abstract
The extracellular matrix (ECM) is an integral component of all organs and plays a pivotal role in tissue homeostasis and repair. While the ECM was long thought to mostly have passive functions by providing physical stability to tissues, detailed characterization of its physical structure and biochemical properties have uncovered an unprecedented broad spectrum of functions. It is now clear that the ECM not only comprises the essential building block of tissues but also actively supports and maintains the dynamic interplay between tissue compartments as well as embedded resident and recruited inflammatory cells in response to pathologic stimuli. On the other hand, certain pathogens such as bacteria and viruses have evolved strategies that exploit ECM structures for infection of cells and tissues, and mutations in ECM proteins can give rise to a variety of genetic conditions. Here, we review the composition, structure and function of the ECM in cutaneous homeostasis, inflammatory skin diseases such as psoriasis and atopic dermatitis as well as infections as a paradigm for understanding its wider role in human health.
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Affiliation(s)
- Karin Pfisterer
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | | | | | - Wolfgang Weninger
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
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11
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Camoretti-Mercado B, Lockey RF. Airway smooth muscle pathophysiology in asthma. J Allergy Clin Immunol 2021; 147:1983-1995. [PMID: 34092351 DOI: 10.1016/j.jaci.2021.03.035] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 03/06/2021] [Accepted: 03/16/2021] [Indexed: 02/08/2023]
Abstract
The airway smooth muscle (ASM) cell plays a central role in the pathogenesis of asthma and constitutes an important target for treatment. These cells control muscle tone and thus regulate the opening of the airway lumen and air passage. Evidence indicates that ASM cells participate in the airway hyperresponsiveness as well as the inflammatory and remodeling processes observed in asthmatic subjects. Therapeutic approaches require a comprehensive understanding of the structure and function of the ASM in both the normal and disease states. This review updates current knowledge about ASM and its effects on airway narrowing, remodeling, and inflammation in asthma.
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Affiliation(s)
- Blanca Camoretti-Mercado
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, Fla.
| | - Richard F Lockey
- Division of Allergy and Immunology, Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, Fla
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12
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Hough KP, Curtiss ML, Blain TJ, Liu RM, Trevor J, Deshane JS, Thannickal VJ. Airway Remodeling in Asthma. Front Med (Lausanne) 2020; 7:191. [PMID: 32509793 PMCID: PMC7253669 DOI: 10.3389/fmed.2020.00191] [Citation(s) in RCA: 169] [Impact Index Per Article: 42.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 04/21/2020] [Indexed: 02/06/2023] Open
Abstract
Asthma is an inflammatory disease of the airways that may result from exposure to allergens or other environmental irritants, resulting in bronchoconstriction, wheezing, and shortness of breath. The structural changes of the airways associated with asthma, broadly referred to as airway remodeling, is a pathological feature of chronic asthma that contributes to the clinical manifestations of the disease. Airway remodeling in asthma constitutes cellular and extracellular matrix changes in the large and small airways, epithelial cell apoptosis, airway smooth muscle cell proliferation, and fibroblast activation. These pathological changes in the airway are orchestrated by crosstalk of different cell types within the airway wall and submucosa. Environmental exposures to dust, chemicals, and cigarette smoke can initiate the cascade of pro-inflammatory responses that trigger airway remodeling through paracrine signaling and mechanostimulatory cues that drive airway remodeling. In this review, we explore three integrated and dynamic processes in airway remodeling: (1) initiation by epithelial cells; (2) amplification by immune cells; and (3) mesenchymal effector functions. Furthermore, we explore the role of inflammaging in the dysregulated and persistent inflammatory response that perpetuates airway remodeling in elderly asthmatics.
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Affiliation(s)
- Kenneth P Hough
- Division of Pulmonary Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Miranda L Curtiss
- Division of Pulmonary Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Trevor J Blain
- Division of Pulmonary Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Rui-Ming Liu
- Division of Pulmonary Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Jennifer Trevor
- Division of Pulmonary Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Jessy S Deshane
- Division of Pulmonary Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Victor J Thannickal
- Division of Pulmonary Allergy and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, United States
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13
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Frey A, Lunding LP, Ehlers JC, Weckmann M, Zissler UM, Wegmann M. More Than Just a Barrier: The Immune Functions of the Airway Epithelium in Asthma Pathogenesis. Front Immunol 2020; 11:761. [PMID: 32411147 PMCID: PMC7198799 DOI: 10.3389/fimmu.2020.00761] [Citation(s) in RCA: 103] [Impact Index Per Article: 25.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 04/03/2020] [Indexed: 12/11/2022] Open
Abstract
Allergic bronchial asthma is a chronic disease of the airways that is characterized by symptoms like respiratory distress, chest tightness, wheezing, productive cough, and acute episodes of broncho-obstruction. This symptom-complex arises on the basis of chronic allergic inflammation of the airway wall. Consequently, the airway epithelium is central to the pathogenesis of this disease, because its multiple abilities directly have an impact on the inflammatory response and thus the formation of the disease. In turn, its structure and functions are markedly impaired by the inflammation. Hence, the airway epithelium represents a sealed, self-cleaning barrier, that prohibits penetration of inhaled allergens, pathogens, and other noxious agents into the body. This barrier is covered with mucus that further contains antimicrobial peptides and antibodies that are either produced or specifically transported by the airway epithelium in order to trap these particles and to remove them from the body by a process called mucociliary clearance. Once this first line of defense of the lung is overcome, airway epithelial cells are the first cells to get in contact with pathogens, to be damaged or infected. Therefore, these cells release a plethora of chemokines and cytokines that not only induce an acute inflammatory reaction but also have an impact on the alignment of the following immune reaction. In case of asthma, all these functions are impaired by the already existing allergic immune response that per se weakens the barrier integrity and self-cleaning abilities of the airway epithelium making it more vulnerable to penetration of allergens as well as of infection by bacteria and viruses. Recent studies indicate that the history of allergy- and pathogen-derived insults can leave some kind of memory in these cells that can be described as imprinting or trained immunity. Thus, the airway epithelium is in the center of processes that lead to formation, progression and acute exacerbation of asthma.
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Affiliation(s)
- Andreas Frey
- Division of Mucosal Immunology and Diagnostics, Research Center Borstel, Borstel, Germany.,Airway Research Center North, German Center for Lung Research (DZL), Borstel, Germany
| | - Lars P Lunding
- Airway Research Center North, German Center for Lung Research (DZL), Borstel, Germany.,Division of Asthma Exacerbation & Regulation, Research Center Borstel, Borstel, Germany
| | - Johanna C Ehlers
- Airway Research Center North, German Center for Lung Research (DZL), Borstel, Germany.,Division of Experimental Pneumology, Research Center Borstel, Borstel, Germany
| | - Markus Weckmann
- Airway Research Center North, German Center for Lung Research (DZL), Borstel, Germany.,Department of Pediatric Pulmonology and Allergology, University Children's Hospital, Lübeck, Germany
| | - Ulrich M Zissler
- Center of Allergy & Environment (ZAUM), Technical University of Munich and Helmholtz Center Munich, German Research Center for Environmental Health, Munich, Germany.,Member of the German Center for Lung Research (DZL), CPC-M, Munich, Germany
| | - Michael Wegmann
- Airway Research Center North, German Center for Lung Research (DZL), Borstel, Germany.,Division of Asthma Exacerbation & Regulation, Research Center Borstel, Borstel, Germany
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14
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Mills JT, Schwenzer A, Marsh EK, Edwards MR, Sabroe I, Midwood KS, Parker LC. Airway Epithelial Cells Generate Pro-inflammatory Tenascin-C and Small Extracellular Vesicles in Response to TLR3 Stimuli and Rhinovirus Infection. Front Immunol 2019; 10:1987. [PMID: 31497021 PMCID: PMC6712508 DOI: 10.3389/fimmu.2019.01987] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 08/06/2019] [Indexed: 12/26/2022] Open
Abstract
Viral infections are a common cause of asthma exacerbations, with human rhinoviruses (RV) the most common trigger. RV signals through a number of different receptors, including toll-like receptor (TLR)3. Tenascin-C (TN-C) is an immunomodulatory extracellular matrix protein present in high quantities in the airway of people with asthma, and expression is also upregulated in nasal lavage fluid in response to RV infection. Respiratory viral infection has been demonstrated to induce the release of small extracellular vesicles (sEV) such as exosomes, whilst exosomal cargo can also be modified in the bronchoalveolar lavage fluid of people with asthma. These sEVs may potentiate airway inflammation and regulate the immune response to infection. This study characterizes the relationship between RV infection of bronchial epithelial cells and the release of TN-C, and the release of sEVs following stimulation with the TLR3 agonist and synthetic viral mimic, poly(I:C), as well as the function of the released protein/vesicles. The BEAS-2B airway epithelial cell line and primary human bronchial epithelial cells (PBECs) from asthmatic and non-asthmatic donors were infected with RV or treated with poly(I:C). TN-C expression, release and localization to sEVs was quantified. TN-C expression was also assessed following intra-nasal challenge of C57BL/6 mice with poly(I:C). BEAS-2B cells and macrophages were subsequently challenged with TN-C, or with sEVs generated from BEAS-2B cells pre-treated with siRNA targeted to TN-C or control. The results revealed that poly(I:C) stimulation induced TN-C release in vivo, whilst both poly(I:C) stimulation and RV infection promoted release in vitro, with elevated TN-C release from PBECs obtained from people with asthma. Poly(I:C) also induced the release of TN-C-rich sEVs from BEAS-2B cells. TN-C, and sEVs from poly(I:C) challenged cells, induced cytokine synthesis in macrophages and BEAS-2B cells, whilst sEVs from control cells did not. Moreover, sEVs with ~75% reduced TN-C content did not alter the capacity of sEVs to induce inflammation. This study identifies two novel components of the inflammatory pathway that regulates the immune response following RV infection and TLR3 stimulation, highlighting TN-C release and pro-inflammatory sEVs in the airway as relevant to the biology of virally induced exacerbations of asthma.
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Affiliation(s)
- Jake T. Mills
- Department of Infection, Immunity and Cardiovascular Disease, School of Medicine, Dentistry and Health, University of Sheffield, Sheffield, United Kingdom
- Faculty of Biological Sciences, Astbury Centre for Structural Molecular Biology, School of Molecular and Cellular Biology, University of Leeds, Leeds, United Kingdom
| | - Anja Schwenzer
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom
| | - Elizabeth K. Marsh
- School of Human Sciences, College of Life and Natural Sciences, University of Derby, Derby, United Kingdom
| | - Michael R. Edwards
- Department of Respiratory Medicine, National Heart and Lung Institute, Imperial College London, London, United Kingdom
| | - Ian Sabroe
- Department of Infection, Immunity and Cardiovascular Disease, School of Medicine, Dentistry and Health, University of Sheffield, Sheffield, United Kingdom
| | - Kim S. Midwood
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, Kennedy Institute of Rheumatology, University of Oxford, Oxford, United Kingdom
| | - Lisa C. Parker
- Department of Infection, Immunity and Cardiovascular Disease, School of Medicine, Dentistry and Health, University of Sheffield, Sheffield, United Kingdom
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15
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Rutting S, Papanicolaou M, Xenaki D, Wood LG, Mullin AM, Hansbro PM, Oliver BG. Dietary ω-6 polyunsaturated fatty acid arachidonic acid increases inflammation, but inhibits ECM protein expression in COPD. Respir Res 2018; 19:211. [PMID: 30390648 PMCID: PMC6215599 DOI: 10.1186/s12931-018-0919-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 10/21/2018] [Indexed: 02/06/2023] Open
Abstract
Background The obesity paradox in COPD describes protective effects of obesity on lung pathology and inflammation. However, the underlying relationships between obesity, diet and disease outcomes in COPD are not fully understood. In this study we measured the response to dietary fatty acids upon markers of inflammation and remodelling in human lung cells from people with and without COPD. Methods Pulmonary fibroblasts were challenged with ω-3 polyunsaturated fatty acids (PUFAs), ω-6 PUFAs, saturated fatty acids (SFAs) or the obesity-associated cytokine TNFα. After 48–72 h release of the pro-inflammatory cytokines interleukin (IL)-6 and CXCL8 was measured using ELISA and mRNA expression and deposition of the extracellular matrix (ECM) proteins fibronectin, type I collagen, tenascin and perlecan were measured using qPCR or ECM ELISA, respectively. Results Challenge with the ω-6 PUFA arachidonic acid (AA), but not ω-3 PUFAs or SFAs, resulted in increased IL-6 and CXCL8 release from fibroblasts, however IL-6 and CXCL8 release was reduced in COPD (n = 19) compared to non-COPD (n = 36). AA-induced cytokine release was partially mediated by downstream mediators of cyclooxygenase (COX)-2 in both COPD and non-COPD. In comparison, TNFα-induced IL-6 and CXCL8 release was similar in COPD and non-COPD, indicating a specific interaction of AA in COPD. In patients with or without COPD, regression analysis revealed no relationship between BMI and cytokine release. In addition, AA, but not SFAs or ω-3 PUFAs reduced the basal deposition of fibronectin, type I collagen, tenascin and perlecan into the ECM in COPD fibroblasts. In non-COPD fibroblasts, AA-challenge decreased basal deposition of type I collagen and perlecan, but not fibronectin and tenascin. Conclusions This study shows that AA has disease-specific effects on inflammation and ECM protein deposition. The impaired response to AA in COPD might in part explain why obesity appears to have less detrimental effects in COPD, compared to other lung diseases. Electronic supplementary material The online version of this article (10.1186/s12931-018-0919-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Sandra Rutting
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, The University of Sydney, Sydney, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Michael Papanicolaou
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, The University of Sydney, Sydney, Australia.,School of Life Sciences, University of Technology Sydney, Sydney, Australia
| | - Dia Xenaki
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, The University of Sydney, Sydney, Australia
| | - Lisa G Wood
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Alexander M Mullin
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, The University of Sydney, Sydney, Australia
| | - Philip M Hansbro
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and The University of Newcastle, Newcastle, NSW, Australia
| | - Brian G Oliver
- Respiratory Cellular and Molecular Biology, Woolcock Institute of Medical Research, The University of Sydney, Sydney, Australia. .,School of Life Sciences, University of Technology Sydney, Sydney, Australia.
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16
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Tomlin H, Piccinini AM. A complex interplay between the extracellular matrix and the innate immune response to microbial pathogens. Immunology 2018; 155:186-201. [PMID: 29908065 PMCID: PMC6142291 DOI: 10.1111/imm.12972] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 04/26/2018] [Accepted: 06/01/2018] [Indexed: 12/18/2022] Open
Abstract
The role of the host extracellular matrix (ECM) in infection tends to be neglected. However, the complex interactions between invading pathogens, host tissues and immune cells occur in the context of the ECM. On the pathogen side, a variety of surface and secreted molecules, including microbial surface components recognizing adhesive matrix molecules and tissue-degrading enzymes, are employed that interact with different ECM proteins to effectively establish an infection at specific sites. Microbial pathogens can also hijack or misuse host proteolytic systems to modify the ECM, evade immune responses or process biologically active molecules such as cell surface receptors and cytokines that direct cell behaviour and immune defence. On the host side, the ECM composition and three-dimensional ultrastructure undergo significant modifications, which have a profound impact on the specific signals that the ECM conveys to immune cells at the forefront of infection. Unexpectedly, activated immune cells participate in the remodelling of the local ECM by synthesizing ECM glycoproteins, proteoglycans and collagen molecules. The close interplay between the ECM and the innate immune response to microbial pathogens ultimately affects the outcome of infection. This review explores and discusses recent data that implicate an active role for the ECM in the immune response to infection, encompassing antimicrobial activities, microbial recognition, macrophage activation, phagocytosis, leucocyte population balance, and transcriptional and post-transcriptional regulation of inflammatory networks, and may foster novel antimicrobial approaches.
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Affiliation(s)
- Hannah Tomlin
- School of PharmacyUniversity of NottinghamNottinghamUK
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17
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Hill MR, Philp CJ, Billington CK, Tatler AL, Johnson SR, O'Dea RD, Brook BS. A theoretical model of inflammation- and mechanotransduction-driven asthmatic airway remodelling. Biomech Model Mechanobiol 2018; 17:1451-1470. [PMID: 29968161 PMCID: PMC6154265 DOI: 10.1007/s10237-018-1037-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 05/22/2018] [Indexed: 12/28/2022]
Abstract
Inflammation, airway hyper-responsiveness and airway remodelling are well-established hallmarks of asthma, but their inter-relationships remain elusive. In order to obtain a better understanding of their inter-dependence, we develop a mechanochemical morphoelastic model of the airway wall accounting for local volume changes in airway smooth muscle (ASM) and extracellular matrix in response to transient inflammatory or contractile agonist challenges. We use constrained mixture theory, together with a multiplicative decomposition of growth from the elastic deformation, to model the airway wall as a nonlinear fibre-reinforced elastic cylinder. Local contractile agonist drives ASM cell contraction, generating mechanical stresses in the tissue that drive further release of mitogenic mediators and contractile agonists via underlying mechanotransductive signalling pathways. Our model predictions are consistent with previously described inflammation-induced remodelling within an axisymmetric airway geometry. Additionally, our simulations reveal novel mechanotransductive feedback by which hyper-responsive airways exhibit increased remodelling, for example, via stress-induced release of pro-mitogenic and pro-contractile cytokines. Simulation results also reveal emergence of a persistent contractile tone observed in asthmatics, via either a pathological mechanotransductive feedback loop, a failure to clear agonists from the tissue, or a combination of both. Furthermore, we identify various parameter combinations that may contribute to the existence of different asthma phenotypes, and we illustrate a combination of factors which may predispose severe asthmatics to fatal bronchospasms.
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Affiliation(s)
- Michael R Hill
- Centre for Mathematical Medicine and Biology, School of Mathematical Sciences, University of Nottingham, Room C25, Mathematical Sciences Building, University Park, Nottingham, NG7 2RD, UK.
| | - Christopher J Philp
- Division of Respiratory Medicine, Nottingham Biomedical Research Centre, University of Nottingham, D Floor, South Block, Queen's Medical Centre Campus, Nottingham, NG7 2UH, UK
| | - Charlotte K Billington
- Division of Respiratory Medicine, Nottingham Biomedical Research Centre, University of Nottingham, D Floor, South Block, Queen's Medical Centre Campus, Nottingham, NG7 2UH, UK
| | - Amanda L Tatler
- Division of Respiratory Medicine, Nottingham Biomedical Research Centre, Nottingham City Hospital, University of Nottingham, Hucknall Road, Nottingham, NG5 1PB, UK
| | - Simon R Johnson
- Division of Respiratory Medicine, Nottingham Biomedical Research Centre, University of Nottingham, D Floor, South Block, Queen's Medical Centre Campus, Nottingham, NG7 2UH, UK
| | - Reuben D O'Dea
- Centre for Mathematical Medicine and Biology, School of Mathematical Sciences, University of Nottingham, Room C28, Mathematical Sciences Building, University Park, Nottingham, NG7 2RD, UK
| | - Bindi S Brook
- Centre for Mathematical Medicine and Biology, School of Mathematical Sciences, University of Nottingham, Room C26, Mathematical Sciences Building, University Park, Nottingham, NG7 2RD, UK
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18
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Villalba M, Pérez V, Herrera L, Stepke C, Maldonado N, Fredericksen F, Yáñez A, Olavarría VH. Infectious pancreatic necrosis virus infection of fish cell lines: Preliminary analysis of gene expressions related to extracellular matrix remodeling and immunity. Vet Immunol Immunopathol 2017; 193-194:10-17. [PMID: 29129223 DOI: 10.1016/j.vetimm.2017.09.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 09/27/2017] [Accepted: 09/30/2017] [Indexed: 12/30/2022]
Abstract
The pathogenic infectious pancreatic necrosis virus (IPNV) causes high economic losses in fish farming. This virus can modulate several cellular processes during infection, but little is known about the infection mechanism. To investigate gene activation in response to IPNV, CHSE/F and SHK-1 cell line were infected with a cytopathic Sp field isolate of IPNV, and the expression profiles of proinflammatory, antiviral cytokine, and extracellular matrix markers were analyzed. IPNV induced the production of perlecan, fibulin-1, matrix metalloproteinase-2, 14-3-3β, interleukin-1β, Mx1, and interferon regulatory factors-1, -3, and -9. Interestingly, IPNV-mediated activity was blocked by pharmacological inhibitors of the NF-κB signaling pathway. These results, together with in silico analyses showing the presence of several regulatory consensus-target motifs, suggest that IPNV regulates gene expressions in fish through the activation of several key transcription factors. Collectively, these data indicate that IPNV is a viral regulator of expression for extracellular-matrix and immune markers, even during early infection. Finally, this is the first report in fish to find IPNV modulating the activation of interleukin-1β production primarily through the NF-κB pathway.
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Affiliation(s)
- Melina Villalba
- Facultad de Ciencias, Instituto de Bioquímica y Microbiología, Universidad Austral de Chile, Campus Isla Teja S/N, Valdivia, Chile
| | - Valeria Pérez
- Facultad de Ciencias, Instituto de Bioquímica y Microbiología, Universidad Austral de Chile, Campus Isla Teja S/N, Valdivia, Chile
| | - Laura Herrera
- Facultad de Ciencias, Instituto de Bioquímica y Microbiología, Universidad Austral de Chile, Campus Isla Teja S/N, Valdivia, Chile
| | - Cristopher Stepke
- Facultad de Ciencias, Instituto de Bioquímica y Microbiología, Universidad Austral de Chile, Campus Isla Teja S/N, Valdivia, Chile
| | - Nicolas Maldonado
- Facultad de Ciencias, Instituto de Bioquímica y Microbiología, Universidad Austral de Chile, Campus Isla Teja S/N, Valdivia, Chile
| | - Fernanda Fredericksen
- Facultad de Ciencias, Instituto de Bioquímica y Microbiología, Universidad Austral de Chile, Campus Isla Teja S/N, Valdivia, Chile
| | - Alejandro Yáñez
- Facultad de Ciencias, Instituto de Bioquímica y Microbiología, Universidad Austral de Chile, Campus Isla Teja S/N, Valdivia, Chile; Interdisciplinary Center for Aquaculture Research (INCAR), Universidad Austral de Chile, Valdivia, Chile
| | - Víctor H Olavarría
- Facultad de Ciencias, Instituto de Bioquímica y Microbiología, Universidad Austral de Chile, Campus Isla Teja S/N, Valdivia, Chile.
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19
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Zhang Q, Fu XL, Qian FH, Cao Q, Mao ZD, Bai JL, Du Q, Shi Y. Polymorphisms in Toll-like receptor 3 are associated with asthma-related phenotypes in the Chinese Han patients. Int J Immunogenet 2016; 43:383-390. [PMID: 27682462 DOI: 10.1111/iji.12290] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Revised: 07/25/2016] [Accepted: 09/01/2016] [Indexed: 12/16/2022]
Abstract
Toll-like receptor (TLR) 3 mediates antivirus immunity and is involved in asthma exacerbation and development. However, the genetic association between TLR3 and asthma remains unclear. This study aimed to evaluate the effects of polymorphisms within TLR3 on asthma risk and asthma-related phenotypes in the Chinese Han population. A total number of 462 unrelated adult patients with asthma and 398 healthy volunteers were enrolled in this study. The genotypes of tagging single nucleotide polymorphisms (SNPs) in TLR3 gene were determined using multiplex SNaPshot SNP genotyping assays. Case-control and case-only studies were used to assess any links with asthma and asthma-related phenotypes. The results showed that the genetic variants in TLR3 were associated with asthma-related phenotypes, including eosinophil counts, serum immunoglobulin E levels and lung function. However, there was no obvious association between the TLR3 SNPs and asthma susceptibility or asthma severity. TLR3 polymorphisms may play a considerable role in the pathogenesis of asthma. It will help in better understanding the pathogenesis of asthma and development of more effective strategies for the prevention, prediction and treatment of asthma.
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Affiliation(s)
- Q Zhang
- Department of Respiratory Medicine, Affiliated Changzhou No. 2 People's Hospital, Nanjing Medical University, Changzhou, China.,Department of Respiratory Medicine, Nanjing General Hospital of Nanjing Military Command, Nanjing, China
| | - X L Fu
- Health Science Center, Jiangsu University, Zhenjiang, China
| | - F H Qian
- Department of Respiratory Medicine, Affiliated Jiangbing Hospital, Jiangsu University, Zhenjiang, China
| | - Q Cao
- Department of Respiratory Medicine, Affiliated Changzhou No. 2 People's Hospital, Nanjing Medical University, Changzhou, China
| | - Z D Mao
- Department of Respiratory Medicine, Affiliated Changzhou No. 2 People's Hospital, Nanjing Medical University, Changzhou, China
| | - J L Bai
- Department of Biostatistics, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Q Du
- Department of Respiratory Medicine, Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Y Shi
- Department of Respiratory Medicine, Nanjing General Hospital of Nanjing Military Command, Nanjing, China
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20
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Jamieson KC, Warner SM, Leigh R, Proud D. Rhinovirus in the Pathogenesis and Clinical Course of Asthma. Chest 2016; 148:1508-1516. [PMID: 26270739 DOI: 10.1378/chest.15-1335] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
In healthy individuals, human rhinovirus (HRV) infections are the major cause of the common cold. These are generally uncomplicated infections except for occasional cases of otitis media or sinusitis. In individuals with asthma, however, HRV infections can have a major impact on disease development and progression. HRV-induced wheezing illnesses in early life are a significant risk factor for subsequent development of asthma, and growing evidence supports a role of recurrent HRV infections in the development and progression of several aspects of airway remodeling in asthma. In addition, HRV infections are one of the most common triggers for acute exacerbations of asthma, which represent a major burden to health-care systems around the world. None of the currently prescribed medications for asthma are effective in preventing or reversing asthma development and airway remodeling or are ideal for treating HRV-induced exacerbations of asthma. Thus, a better understanding of the role of HRV in asthma is important if we are to develop more effective therapies. In the past decade, we have gained new insights into the role of HRV infections in the development and progression of airway remodeling as well as a new appreciation for the proinflammatory and host defense responses to HRV infections that may help to regulate susceptibility to asthma exacerbations. This article reviews the current understanding of the role HRV infections play in the pathogenesis of asthma and identifies possible avenues to new therapeutic strategies for limiting the effects of HRV infections in asthma.
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Affiliation(s)
- Kyla C Jamieson
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Stephanie M Warner
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Richard Leigh
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - David Proud
- Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
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21
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Abstract
Airway hyperresponsiveness (AHR) is a defining characteristic of asthma that refers to the capacity of the airways to undergo exaggerated narrowing in response to stimuli that do not result in comparable degrees of airway narrowing in healthy subjects. Airway smooth muscle (ASM) contraction mediates airway narrowing, but it remains uncertain as to whether the smooth muscle is intrinsically altered in asthmatic subjects or is responding abnormally as a result of the milieu in which it sits. ASM in the trachea or major bronchi does not differ in its contractile characteristics in asthmatics, but the more pertinent peripheral airways await complete exploration. The mass of ASM is increased in many but not all asthmatics and therefore cannot be a unifying hypothesis for AHR, although when increased in mass it may contribute to AHR. The inability of a deep breath to reverse or prevent bronchial narrowing in asthma may reflect an intrinsic difference in the mechanisms that lead to softening of contracted ASM when subjected to stretch. Cytokines such as interleukin-13 and tumor necrosis factor-α promote a more contractile ASM phenotype. The composition and increased stiffness of the matrix in which ASM is embedded promotes a more proliferative and pro-inflammatory ASM phenotype, but the expected dedifferentiation and loss of contractility have not been shown. Airway epithelium may drive ASM proliferation and/or molecular remodeling in ways that may lead to AHR. In conclusion, AHR is likely multifactorial in origin, reflecting the plasticity of ASM properties in the inflammatory environment of the asthmatic airway.
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Affiliation(s)
- Anne-Marie Lauzon
- Meakins-Christie Laboratories, McGill University Health Center Research Institute, Montreal, QC, Canada; Department of Medicine, McGill University, Montreal, QC, Canada
| | - James G Martin
- Meakins-Christie Laboratories, McGill University Health Center Research Institute, Montreal, QC, Canada; Department of Medicine, McGill University, Montreal, QC, Canada
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22
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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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23
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Feldman AS, He Y, Moore ML, Hershenson MB, Hartert TV. Toward primary prevention of asthma. Reviewing the evidence for early-life respiratory viral infections as modifiable risk factors to prevent childhood asthma. Am J Respir Crit Care Med 2015; 191:34-44. [PMID: 25369458 DOI: 10.1164/rccm.201405-0901pp] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
A first step in primary disease prevention is identifying common, modifiable risk factors that contribute to a significant proportion of disease development. Infant respiratory viral infection and childhood asthma are the most common acute and chronic diseases of childhood, respectively. Common clinical features and links between these diseases have long been recognized, with early-life respiratory syncytial virus (RSV) and rhinovirus (RV) lower respiratory tract infections (LRTIs) being strongly associated with increased asthma risk. However, there has long been debate over the role of these respiratory viruses in asthma inception. In this article, we systematically review the evidence linking early-life RSV and RV LRTIs with asthma inception and whether they could therefore be targets for primary prevention efforts.
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Affiliation(s)
- Amy S Feldman
- 1 Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, and Center for Asthma Research, Vanderbilt University School of Medicine, Nashville, Tennessee
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24
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Ichikawa T, Sugiura H, Koarai A, Minakata Y, Kikuchi T, Morishita Y, Oka A, Kanai K, Kawabata H, Hiramatsu M, Akamatsu K, Hirano T, Nakanishi M, Matsunaga K, Yamamoto N, Ichinose M. TLR3 activation augments matrix metalloproteinase production through reactive nitrogen species generation in human lung fibroblasts. THE JOURNAL OF IMMUNOLOGY 2014; 192:4977-88. [PMID: 24760149 DOI: 10.4049/jimmunol.1302919] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Viral infection often triggers asthma exacerbation and contributes to airway remodeling. Cell signaling in viral infection is mainly mediated through TLR3. Many mediators are involved in airway remodeling, but matrix metalloproteinases (MMPs) are key players in this process in asthma. However, the role of TLR3 activation in production of MMPs is unknown. In this study, we examined the effects of polyinosinic-polycytidylic acid [poly(I:C)], a ligand for TLR3, on production of MMPs in human lung fibroblasts, with a focus on nitrosative stress in TLR3 modulation of MMP production. After lung fibroblasts were treated with poly(I:C), production of MMP-1, -2, and -9 and inducible NO synthase (iNOS) was assessed. The roles of NF-κB and IFN regulatory factor-3 (IRF-3) in the poly(I:C)-mediated production of MMPs and the responsiveness to poly(I:C) of normal lung fibroblasts and asthmatic lung fibroblasts were also investigated. Poly(I:C) augmented production of MMPs and iNOS in fibroblasts, and an iNOS inhibitor diminished this production of MMPs. Poly(I:C) stimulated translocation of NF-κB and IRF-3 into the nucleus in fibroblasts and inhibition of NF-κB or IRF-3 abrogated the poly(I:C)-induced increase in both iNOS expression and release of MMPs. Poly(I:C)-induced production of iNOS and MMPs was greater in asthmatic fibroblasts than in normal fibroblasts. We conclude that viral infection may induce nitrosative stress and subsequent MMP production via NF-κB- and IRF-3-dependent pathways, thus potentiating viral-induced airway remodeling in asthmatic airways.
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Affiliation(s)
- Tomohiro Ichikawa
- Third Department of Internal Medicine, Wakayama Medical University, School of Medicine, Wakayama 641-8509, Japan; and
| | - Hisatoshi Sugiura
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan
| | - Akira Koarai
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan
| | - Yoshiaki Minakata
- Third Department of Internal Medicine, Wakayama Medical University, School of Medicine, Wakayama 641-8509, Japan; and
| | - Takashi Kikuchi
- Third Department of Internal Medicine, Wakayama Medical University, School of Medicine, Wakayama 641-8509, Japan; and
| | - Yukiko Morishita
- Third Department of Internal Medicine, Wakayama Medical University, School of Medicine, Wakayama 641-8509, Japan; and
| | - Asako Oka
- Third Department of Internal Medicine, Wakayama Medical University, School of Medicine, Wakayama 641-8509, Japan; and
| | - Kuninobu Kanai
- Third Department of Internal Medicine, Wakayama Medical University, School of Medicine, Wakayama 641-8509, Japan; and
| | - Hiroki Kawabata
- Third Department of Internal Medicine, Wakayama Medical University, School of Medicine, Wakayama 641-8509, Japan; and
| | - Masataka Hiramatsu
- Third Department of Internal Medicine, Wakayama Medical University, School of Medicine, Wakayama 641-8509, Japan; and
| | - Keiichiro Akamatsu
- Third Department of Internal Medicine, Wakayama Medical University, School of Medicine, Wakayama 641-8509, Japan; and
| | - Tsunahiko Hirano
- Third Department of Internal Medicine, Wakayama Medical University, School of Medicine, Wakayama 641-8509, Japan; and
| | - Masanori Nakanishi
- Third Department of Internal Medicine, Wakayama Medical University, School of Medicine, Wakayama 641-8509, Japan; and
| | - Kazuto Matsunaga
- Third Department of Internal Medicine, Wakayama Medical University, School of Medicine, Wakayama 641-8509, Japan; and
| | - Nobuyuki Yamamoto
- Third Department of Internal Medicine, Wakayama Medical University, School of Medicine, Wakayama 641-8509, Japan; and
| | - Masakazu Ichinose
- Department of Respiratory Medicine, Tohoku University Graduate School of Medicine, Sendai 980-8574, Japan
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25
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Abstract
In the last decade, many epidemiologic studies have investigated the link between vitamin D deficiency and asthma. Most studies have shown that vitamin D deficiency increases the risk of asthma and allergies. Low levels of vitamin D have been associated with asthma severity and loss of control, together with recurrent exacerbations. Remodeling is an early event in asthma described as a consequence of production of mediators and growth factors by inflammatory and resident bronchial cells. Consequently, lung function is altered, with a decrease in forced expiratory volume in one second and exacerbated airway hyperresponsiveness. Subepithelial fibrosis and airway smooth muscle cell hypertrophy are typical features of structural changes in the airways. In animal models, vitamin D deficiency enhances inflammation and bronchial anomalies. In severe asthma of childhood, major remodeling is observed in patients with low vitamin D levels. Conversely, the antifibrotic and antiproliferative effects of vitamin D in smooth muscle cells have been described in several experiments. In this review, we briefly summarize the current knowledge regarding the relationship between vitamin D and asthma, and focus on its effect on airway remodeling and its potential therapeutic impact for asthma.
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Affiliation(s)
- Anissa Berraies
- Pediatric Respiratory Diseases Department, Abderrahmen Mami Hospital, Ariana, and Research Unit 12SP15 Tunis El Manar University, Tunis, Tunisia
| | - Kamel Hamzaoui
- Pediatric Respiratory Diseases Department, Abderrahmen Mami Hospital, Ariana, and Research Unit 12SP15 Tunis El Manar University, Tunis, Tunisia
| | - Agnes Hamzaoui
- Pediatric Respiratory Diseases Department, Abderrahmen Mami Hospital, Ariana, and Research Unit 12SP15 Tunis El Manar University, Tunis, Tunisia
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26
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Berankova K, Uhlik J, Honkova L, Pohunek P. Structural changes in the bronchial mucosa of young children at risk of developing asthma. Pediatr Allergy Immunol 2014; 25:136-42. [PMID: 24028346 DOI: 10.1111/pai.12119] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/18/2013] [Indexed: 12/14/2022]
Abstract
BACKGROUND Bronchial asthma often starts in early childhood. Clinical manifestation of the disease is likely due to inflammatory processes in the airways initiated by various stimuli. Developed remodelling is regularly observed in the bronchial mucosa of adult asthmatics but we still lack information about its onset and latter development with the natural course of the disease. In this study, we analysed histological findings in bronchial biopsies obtained from very young children (under 4 yr of age). We hypothesized that initial undetectable changes in the airway epithelium of children predisposed to asthma may be one of the first mechanisms leading to morphological changes in the bronchial mucosa. METHODS We measured the thickness of the basement membrane using a light microscope and analysed the presence of its three basic structural glycoproteins: laminin, tenascin and collagen IV, using immunohistochemical techniques. We compared these findings in children predisposed to asthma according to the selected clinical criteria of the Asthma Predictive Index and in a control group of children. RESULTS We found a significant difference in the thickness of the basement membrane between the two groups. We also found a difference in the subepithelial deposition of laminin and collagen IV in the basement membrane but no difference in the deposition of tenascin. CONCLUSIONS We conclude that initial changes leading to further remodelling may start at a very early age even before clinical manifestation of the disease.
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Affiliation(s)
- Katarina Berankova
- Department of Paediatrics, 2nd Faculty of Medicine, Charles University and University Hospital Motol, Prague, Czech Republic
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27
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Prakash YS. Airway smooth muscle in airway reactivity and remodeling: what have we learned? Am J Physiol Lung Cell Mol Physiol 2013; 305:L912-33. [PMID: 24142517 PMCID: PMC3882535 DOI: 10.1152/ajplung.00259.2013] [Citation(s) in RCA: 159] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Accepted: 10/12/2013] [Indexed: 12/12/2022] Open
Abstract
It is now established that airway smooth muscle (ASM) has roles in determining airway structure and function, well beyond that as the major contractile element. Indeed, changes in ASM function are central to the manifestation of allergic, inflammatory, and fibrotic airway diseases in both children and adults, as well as to airway responses to local and environmental exposures. Emerging evidence points to novel signaling mechanisms within ASM cells of different species that serve to control diverse features, including 1) [Ca(2+)]i contractility and relaxation, 2) cell proliferation and apoptosis, 3) production and modulation of extracellular components, and 4) release of pro- vs. anti-inflammatory mediators and factors that regulate immunity as well as the function of other airway cell types, such as epithelium, fibroblasts, and nerves. These diverse effects of ASM "activity" result in modulation of bronchoconstriction vs. bronchodilation relevant to airway hyperresponsiveness, airway thickening, and fibrosis that influence compliance. This perspective highlights recent discoveries that reveal the central role of ASM in this regard and helps set the stage for future research toward understanding the pathways regulating ASM and, in turn, the influence of ASM on airway structure and function. Such exploration is key to development of novel therapeutic strategies that influence the pathophysiology of diseases such as asthma, chronic obstructive pulmonary disease, and pulmonary fibrosis.
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Affiliation(s)
- Y S Prakash
- Dept. of Anesthesiology, Mayo Clinic, 4-184 W Jos SMH, 200 First St. SW, Rochester, MN 55905.
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28
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Månsson Kvarnhammar A, Tengroth L, Adner M, Cardell LO. Innate immune receptors in human airway smooth muscle cells: activation by TLR1/2, TLR3, TLR4, TLR7 and NOD1 agonists. PLoS One 2013; 8:e68701. [PMID: 23861935 PMCID: PMC3701658 DOI: 10.1371/journal.pone.0068701] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2013] [Accepted: 06/02/2013] [Indexed: 12/25/2022] Open
Abstract
Background Pattern-recognition receptors (PRRs), including Toll-like receptors (TLRs), NOD-like receptors (NLRs) and RIG-I-like receptors (RLRs), recognize microbial components and trigger a host defense response. Respiratory tract infections are common causes of asthma exacerbations, suggesting a role for PRRs in this process. The present study aimed to examine the expression and function of PRRs on human airway smooth muscle cells (HASMCs). Methods Expression of TLR, NLR and RLR mRNA and proteins was determined using real-time RT-PCR, flow cytometry and immunocytochemistry. The functional responses to ligand stimulation were investigated in terms of cytokine and chemokine release, cell surface marker expression, proliferation and proteins regulating the contractile state. Results HASMCs expressed functional TLR2, TLR3, TLR4, TLR7 and NOD1. Stimulation with the corresponding agonists Pam3CSK4, poly(I:C), LPS, R-837 and iE-DAP, respectively, induced IL-6, IL-8 and GM-CSF release and up-regulation of ICAM-1 and HLA-DR, while poly(I:C) also affected the release of eotaxin and RANTES. The proliferative response was slightly increased by LPS. Stimulation, most prominently with poly(I:C), down-regulated myosin light chain kinase and cysteinyl leukotriene 1 receptor expression and up-regulated β2-adrenoceptor expression. No effects were seen for agonist to TLR2/6, TLR5, TLR8, TLR9, NOD2 or RIG-I/MDA-5. Conclusion Activation of TLR2, TLR3, TLR4, TLR7 and NOD1 favors a synthetic phenotype, characterized by an increased ability to release inflammatory mediators, acquire immunomodulatory properties by recruiting and interacting with other cells, and reduce the contractile state. The PRRs might therefore be of therapeutic use in the management of asthma and infection-induced disease exacerbations.
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Affiliation(s)
- Anne Månsson Kvarnhammar
- Division of ENT Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Lotta Tengroth
- Division of ENT Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Mikael Adner
- Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Lars-Olaf Cardell
- Division of ENT Diseases, Department of Clinical Sciences, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
- * E-mail:
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29
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Campbell-Harding G, Sawkins H, Bedke N, Holgate ST, Davies DE, Andrews AL. The innate antiviral response upregulates IL-13 receptor α2 in bronchial fibroblasts. J Allergy Clin Immunol 2013; 131:849-55. [PMID: 23069489 DOI: 10.1016/j.jaci.2012.08.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Revised: 08/13/2012] [Accepted: 08/22/2012] [Indexed: 02/08/2023]
Abstract
BACKGROUND IL-13 is key mediator of allergic inflammation in asthmatic patients. We have previously shown that the decoy receptor IL-13 receptor (IL-13R) α2 attenuates responses of fibroblasts to IL-13. Because the expression of IL-13Rα2 can be regulated by IFN-γ, a type II interferon, we hypothesized that innate antiviral responses characterized by type I interferon expression can also induce IL-13Rα2 expression. OBJECTIVE We sought to induce an innate antiviral response in primary fibroblasts using exposure to double-stranded RNA (dsRNA) and to examine the expression and function of IL-13Rα2. METHODS Primary human fibroblasts were cultured from endobronchial biopsy specimens obtained from healthy or asthmatic volunteers and challenged with dsRNA. Upregulation of IL-13Rα2 mRNA was measured by using real-time quantitative PCR, and cell-surface IL-13Rα2 protein expression was measured by using fluorescence-activated cell sorting. Eotaxin release was determined by means of ELISA. RESULTS Direct treatment with IFN-β led to an upregulation of IL-13Rα2. Exposure to dsRNA rapidly induced IFN-β mRNA in fibroblasts, and this was followed by significant induction of IL-13Rα2 mRNA and cell-surface protein expression, which was dependent on de novo protein synthesis. A neutralizing antibody to the IFN-α/β receptor blocked cell-surface expression of IL-13Rα2 in the presence of dsRNA. Pretreatment of fibroblasts with dsRNA led to attenuation of IL-13-stimulated eotaxin production. However, the presence of an IL-13Rα2 neutralizing antibody restored IL-13-stimulated eotaxin production in dsRNA-treated cells. CONCLUSION IFN-β induces IL-13Rα2 expression, leading to a consequential suppression of responsiveness to IL-13. These data suggest cross-talk between TH1 and TH2 pathways and point to an immunomodulatory role for IL-13Rα2 in human bronchial fibroblasts during viral infection.
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Affiliation(s)
- Gemma Campbell-Harding
- Academic Unit of Clinical and Experimental Sciences and the Southampton NIHR Respiratory Biomedical Research Unit, University of Southampton Faculty of Medicine, Sir Henry Wellcome Laboratories, Southampton General Hospital, Southampton, United Kingdom
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Van Ly D, Faiz A, Jenkins C, Crossett B, Black JL, McParland B, Burgess JK, Oliver BGG. Characterising the mechanism of airway smooth muscle β2 adrenoceptor desensitization by rhinovirus infected bronchial epithelial cells. PLoS One 2013; 8:e56058. [PMID: 23457497 PMCID: PMC3574065 DOI: 10.1371/journal.pone.0056058] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Accepted: 01/04/2013] [Indexed: 11/19/2022] Open
Abstract
Rhinovirus (RV) infections account for approximately two thirds of all virus-induced asthma exacerbations and often result in an impaired response to β2 agonist therapy. Using an in vitro model of RV infection, we investigated the mechanisms underlying RV-induced β2 adrenoceptor desensitization in primary human airway smooth muscle cells (ASMC). RV infection of primary human bronchial epithelial cells (HBEC) for 24 hours produced conditioned medium that caused β2 adrenoceptor desensitization on ASMCs without an effect on ASMCs viability. Less than 3 kDa size fractionation together with trypsin digestion of RV-induced conditioned medium did not prevent β2 adrenoceptor desensitization, suggesting it could potentially be mediated by a small peptide or lipid. RV infection of BECs, ASMCs and fibroblasts produced prostaglandins, of which PGE2, PGF2α and PGI2 had the ability to cause β2 adrenoceptor desensitization on ASMCs. RV-induced conditioned medium from HBECs depleted of PGE2 did not prevent ASMC β2 adrenoceptor desensitization; however this medium induced PGE2 from ASMCs, suggesting that autocrine prostaglandin production may be responsible. Using inhibitors of cyclooxygenase and prostaglandin receptor antagonists, we found that β2 adrenoceptor desensitization was mediated through ASMC derived COX-2 induced prostaglandins. Since ASMC prostaglandin production is unlikely to be caused by RV-induced epithelial derived proteins or lipids we next investigated activation of toll-like receptors (TLR) by viral RNA. The combination of TLR agonists poly I:C and imiquimod induced PGE2 and β2 adrenoceptor desensitization on ASMC as did the RNA extracted from RV-induced conditioned medium. Viral RNA but not epithelial RNA caused β2 adrenoceptor desensitization confirming that viral RNA and not endogenous human RNA was responsible. It was deduced that the mechanism by which β2 adrenoceptor desensitization occurs was by pattern recognition receptor activation of COX-2 induced prostaglandins.
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Affiliation(s)
- David Van Ly
- Woolcock Institute of Medical Research, Sydney, Australia.
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Xia YC, Redhu NS, Moir LM, Koziol-White C, Ammit AJ, Al-Alwan L, Camoretti-Mercado B, Clifford RL. Pro-inflammatory and immunomodulatory functions of airway smooth muscle: Emerging concepts. Pulm Pharmacol Ther 2013; 26:64-74. [DOI: 10.1016/j.pupt.2012.05.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2012] [Revised: 05/08/2012] [Accepted: 05/09/2012] [Indexed: 12/22/2022]
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Van Ly D, Burgess JK, Brock TG, Lee TH, Black JL, Oliver BGG. Prostaglandins but not leukotrienes alter extracellular matrix protein deposition and cytokine release in primary human airway smooth muscle cells and fibroblasts. Am J Physiol Lung Cell Mol Physiol 2012; 303:L239-50. [PMID: 22637153 DOI: 10.1152/ajplung.00097.2012] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Eicosanoids are lipid-signaling mediators released by many cells in response to various stimuli. Increasing evidence suggests that eicosanoids such as leukotrienes and prostaglandins (PGs) may directly mediate remodeling. In this study, we assessed whether these substances could alter extracellular matrix (ECM) proteins and the inflammatory profiles of primary human airway smooth muscle cells (ASM) and fibroblasts. PGE(2) decreased both fibronectin and tenascin C in fibroblasts but only fibronectin in ASM. PGD(2) decreased both fibronectin and tenascin C in both ASM and fibroblasts, whereas PGF(2α) had no effect on ECM deposition. The selective PGI(2) analog, MRE-269, decreased fibronectin but not tenascin C in both cell types. All the PGs increased IL-6 and IL-8 release in a dose-dependent manner in ASM and fibroblasts. Changes in ECM deposition and cytokine release induced by prostaglandins in both ASM and fibroblasts were independent of an effect on cell number. Neither the acute nor repeated stimulation with leukotrienes had an effect on the deposition of ECM proteins or cytokine release from ASM or fibroblasts. We concluded that, collectively, these results provide evidence that PGs may contribute to ECM remodeling to a greater extent than leukotrienes in airway cells.
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Affiliation(s)
- David Van Ly
- Respiratory Research Group, Cell Biology, Woolcock Institute of Medical Research, PO Box M77, Missenden Rd., Camperdown NSW 2050 Australia.
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Rosenthal LA, Szakaly RJ, Amineva SP, Xing Y, Hill MR, Palmenberg AC, Gern JE, Sorkness RL. Lower respiratory tract infection induced by a genetically modified picornavirus in its natural murine host. PLoS One 2012; 7:e32061. [PMID: 22355409 PMCID: PMC3280220 DOI: 10.1371/journal.pone.0032061] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2011] [Accepted: 01/23/2012] [Indexed: 12/21/2022] Open
Abstract
Infections with the picornavirus, human rhinovirus (HRV), are a major cause of wheezing illnesses and asthma exacerbations. In developing a murine model of picornaviral airway infection, we noted the absence of murine rhinoviruses and that mice are not natural hosts for HRV. The picornavirus, mengovirus, induces lethal systemic infections in its natural murine hosts, but small genetic differences can profoundly affect picornaviral tropism and virulence. We demonstrate that inhalation of a genetically attenuated mengovirus, vMC0, induces lower respiratory tract infections in mice. After intranasal vMC0 inoculation, lung viral titers increased, peaking at 24 h postinoculation with viral shedding persisting for 5 days, whereas HRV-A01a lung viral titers decreased and were undetectable 24 h after intranasal inoculation. Inhalation of vMC0, but not vehicle or UV-inactivated vMC0, induced an acute respiratory illness, with body weight loss and lower airway inflammation, characterized by increased numbers of airway neutrophils and lymphocytes and elevated pulmonary expression of neutrophil chemoattractant CXCR2 ligands (CXCL1, CXCL2, CXCL5) and interleukin-17A. Mice inoculated with vMC0, compared with those inoculated with vehicle or UV-inactivated vMC0, exhibited increased pulmonary expression of interferon (IFN-α, IFN-β, IFN-λ), viral RNA sensors [toll-like receptor (TLR)3, TLR7, nucleotide-binding oligomerization domain containing 2 (NOD2)], and chemokines associated with HRV infection in humans (CXCL10, CCL2). Inhalation of vMC0, but not vehicle or UV-inactivated vMC0, was accompanied by increased airway fluid myeloperoxidase levels, an indicator of neutrophil activation, increased MUC5B gene expression, and lung edema, a sign of infection-related lung injury. Consistent with experimental HRV inoculations of nonallergic, nonasthmatic human subjects, there were no effects on airway hyperresponsiveness after inhalation of vMC0 by healthy mice. This novel murine model of picornaviral airway infection and inflammation should be useful for defining mechanisms of HRV pathogenesis in humans.
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Affiliation(s)
- Louis A Rosenthal
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin, United States of America.
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Koziol-White CJ, Damera G, Panettieri RA. Targeting airway smooth muscle in airways diseases: an old concept with new twists. Expert Rev Respir Med 2011; 5:767-77. [PMID: 22082163 PMCID: PMC3276206 DOI: 10.1586/ers.11.77] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Airway smooth muscle (ASM) manifests a hyper-responsive phenotype in airway disorders such as asthma. ASM also modulates immune responses by secreting mediators and expressing cell-surface molecules that promote recruitment of inflammatory cells to the lungs. The aim of the current article is to highlight therapeutics that may modulate ASM responses in airway disorders and exacerbations.
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Affiliation(s)
- Cynthia J Koziol-White
- Pulmonary, Allergy and Critical Care Division, Airways Biology Initiative, University of Pennsylvania, Philadelphia, PA 19104-3413, USA
| | - Gautam Damera
- Pulmonary, Allergy and Critical Care Division, Airways Biology Initiative, University of Pennsylvania, Philadelphia, PA 19104-3413, USA
| | - Reynold A Panettieri
- Pulmonary, Allergy and Critical Care Division, Airways Biology Initiative, University of Pennsylvania, Philadelphia, PA 19104-3413, USA
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Takayama S, Tamaoka M, Takayama K, Okayasu K, Tsuchiya K, Miyazaki Y, Sumi Y, Martin JG, Inase N. Synthetic double-stranded RNA enhances airway inflammation and remodelling in a rat model of asthma. Immunology 2011; 134:140-50. [PMID: 21896009 PMCID: PMC3194222 DOI: 10.1111/j.1365-2567.2011.03473.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Respiratory viral infections are frequently associated with exacerbations of asthma. Double-stranded RNA (dsRNA) produced during viral infections may be one of the stimuli for exacerbation. We aimed to assess the potential effect of dsRNA on certain aspects of chronic asthma through the administration of polyinosine-polycytidylic acid (poly I:C), synthetic dsRNA, to a rat model of asthma. Brown Norway rats were sensitized to ovalbumin and challenged three times to evoke airway remodelling. The effect of poly I:C on the ovalbumin-induced airway inflammation and structural changes was assessed from bronchoalveolar lavage fluid and histological findings. The expression of cytokines and chemokines was evaluated by real-time quantitative reverse transcription PCR and ELISA. Ovalbumin-challenged animals showed an increased number of total cells and eosinophils in bronchoalveolar lavage fluid compared with PBS-challenged controls. Ovalbumin-challenged animals treated with poly I:C showed an increased number of total cells and neutrophils in bronchoalveolar lavage fluid compared with those without poly I:C treatment. Ovalbumin-challenged animals showed goblet cell hyperplasia, increased airway smooth muscle mass, and proliferation of both airway epithelial cells and airway smooth muscle cells. Treatment with poly I:C enhanced these structural changes. Among the cytokines and chemokines examined, the expression of interleukins 12 and 17 and of transforming growth factor-β(1) in ovalbumin-challenged animals treated with poly I:C was significantly increased compared with those of the other groups. Double-stranded RNA enhanced airway inflammation and remodelling in a rat model of bronchial asthma. These observations suggest that viral infections may promote airway remodelling.
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Affiliation(s)
- Satoshi Takayama
- Department of Integrated Pulmonology, Tokyo Medical and Dental University, Tokyo, Japan.
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Ichimaru Y, Krimmer DI, Burgess JK, Black JL, Oliver BGG. TGF-β enhances deposition of perlecan from COPD airway smooth muscle. Am J Physiol Lung Cell Mol Physiol 2011; 302:L325-33. [PMID: 22003087 DOI: 10.1152/ajplung.00453.2010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) and asthma are characterized by irreversible remodeling of the airway walls, including thickening of the airway smooth muscle layer. Perlecan is a large, multidomain, proteoglycan that is expressed in the lungs, and in other organ systems, and has been described to have a role in cell adhesion, angiogenesis, and proliferation. This study aimed to investigate functional properties of the different perlecan domains in relation to airway smooth muscle cells (ASMC). Primary human ASMC obtained from donors with asthma (n = 13), COPD (n = 12), or other lung disease (n = 20) were stimulated in vitro with 1 ng/ml transforming growth factor-β(1) (TGF-β(1)) before perlecan deposition and cytokine release were analyzed. In some experiments, inhibitors of signaling molecules were added. Perlecan domains I-V were seeded on tissue culture plates at 10 μg/ml with 1 μg/ml collagen I as a control. ASM was incubated on top of the peptides before being analyzed for attachment, proliferation, and wound healing. TGF-β(1) upregulated deposition of perlecan by ASMC from COPD subjects only. TGF-β(1) upregulated release of IL-6 into the supernatant of ASMC from all subjects. Inhibitors of SMAD and JNK signaling molecules decreased TGF-β(1)-induced perlecan deposition by COPD ASMC. Attachment of COPD ASMC was upregulated by collagen I and perlecan domains IV and V, while perlecan domain II upregulated attachment only of asthmatic ASMC. Seeding on perlecan domains did not increase proliferation of any ASMC type. TGF-β(1)-induced perlecan deposition may enhance attachment of migrating ASMC in vivo and thus may be a mechanism for ASMC layer hypertrophy in COPD.
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Affiliation(s)
- Yukikazu Ichimaru
- Cell Biology group, Woolcock Institute of Medical Research, NSW, Australia
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