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Wang Y, Ninaber DK, Faiz A, van der Linden AC, van Schadewijk A, Lutter R, Hiemstra PS, van der Does AM, Ravi A. Acute cigarette smoke exposure leads to higher viral infection in human bronchial epithelial cultures by altering interferon, glycolysis and GDF15-related pathways. Respir Res 2023; 24:207. [PMID: 37612597 PMCID: PMC10464373 DOI: 10.1186/s12931-023-02511-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 08/13/2023] [Indexed: 08/25/2023] Open
Abstract
BACKGROUND Acute exacerbations of chronic inflammatory lung diseases, such as chronic obstructive pulmonary disease (COPD), are frequently associated with rhinovirus (RV) infections. Despite these associations, the pathogenesis of virus-induced exacerbations is incompletely understood. We aimed to investigate effects of cigarette smoke (CS), a primary risk factor for COPD, on RV infection in airway epithelium and identify novel mechanisms related to these effects. METHODS Primary bronchial epithelial cells (PBEC) from COPD patients and controls were differentiated by culture at the air-liquid interface (ALI) and exposed to CS and RV-A16. Bulk RNA sequencing was performed using samples collected at 6 and 24 h post infection (hpi), and viral load, mediator and L-lactate levels were measured at 6, 24 and 48hpi. To further delineate the effect of CS on RV-A16 infection, we performed growth differentiation factor 15 (GDF15) knockdown, L-lactate and interferon pre-treatment in ALI-PBEC. We performed deconvolution analysis to predict changes in the cell composition of ALI-PBEC after the various exposures. Finally, we compared transcriptional responses of ALI-PBEC to those in nasal epithelium after human RV-A16 challenge. RESULTS CS exposure impaired antiviral responses at 6hpi and increased viral replication at 24 and 48hpi in ALI-PBEC. At 24hpi, CS exposure enhanced expression of RV-A16-induced epithelial interferons, inflammation-related genes and CXCL8. CS exposure increased expression of oxidative stress-related genes, of GDF15, and decreased mitochondrial membrane potential. GDF15 knockdown experiments suggested involvement of this pathway in the CS-induced increase in viral replication. Expression of glycolysis-related genes and L-lactate production were increased by CS exposure, and was demonstrated to contribute to higher viral replication. No major differences were demonstrated between COPD and non-COPD-derived cultures. However, cellular deconvolution analysis predicted higher secretory cells in COPD-derived cultures at baseline. CONCLUSION Altogether, our findings demonstrate that CS exposure leads to higher viral infection in human bronchial epithelium by altering not only interferon responses, but likely also through a switch to glycolysis, and via GDF15-related pathways.
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Affiliation(s)
- Ying Wang
- PulmoScience Lab, Department of Pulmonology, Leiden University Medical Center, 2333 ZA, Leiden, The Netherlands
| | - Dennis K Ninaber
- PulmoScience Lab, Department of Pulmonology, Leiden University Medical Center, 2333 ZA, Leiden, The Netherlands
| | - Alen Faiz
- Respiratory Bioinformatics and Molecular Biology (RBMB), School of Life Sciences, University of Technology Sydney, Ultimo, Sydney, NSW, 2007, Australia
| | - Abraham C van der Linden
- PulmoScience Lab, Department of Pulmonology, Leiden University Medical Center, 2333 ZA, Leiden, The Netherlands
| | - Annemarie van Schadewijk
- PulmoScience Lab, Department of Pulmonology, Leiden University Medical Center, 2333 ZA, Leiden, The Netherlands
| | - René Lutter
- Department of Pulmonary Medicine, Amsterdam University Medical Center, University of Amsterdam, 1081HV, Amsterdam, The Netherlands
| | - Pieter S Hiemstra
- PulmoScience Lab, Department of Pulmonology, Leiden University Medical Center, 2333 ZA, Leiden, The Netherlands
| | - Anne M van der Does
- PulmoScience Lab, Department of Pulmonology, Leiden University Medical Center, 2333 ZA, Leiden, The Netherlands
| | - Abilash Ravi
- PulmoScience Lab, Department of Pulmonology, Leiden University Medical Center, 2333 ZA, Leiden, The Netherlands.
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2
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Lee RE, Reidel B, Nelson MR, Macdonald JK, Kesimer M, Randell SH. Air-Liquid interface cultures to model drug delivery through the mucociliary epithelial barrier. Adv Drug Deliv Rev 2023; 198:114866. [PMID: 37196698 PMCID: PMC10336980 DOI: 10.1016/j.addr.2023.114866] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 03/23/2023] [Accepted: 05/04/2023] [Indexed: 05/19/2023]
Abstract
Epithelial cells from mucociliary portions of the airways can be readily grown and expanded in vitro. When grown on a porous membrane at an air-liquid interface (ALI) the cells form a confluent, electrically resistive barrier separating the apical and basolateral compartments. ALI cultures replicate key morphological, molecular and functional features of the in vivo epithelium, including mucus secretion and mucociliary transport. Apical secretions contain secreted gel-forming mucins, shed cell-associated tethered mucins, and hundreds of additional molecules involved in host defense and homeostasis. The respiratory epithelial cell ALI model is a time-proven workhorse that has been employed in various studies elucidating the structure and function of the mucociliary apparatus and disease pathogenesis. It serves as a critical milestone test for small molecule and genetic therapies targeting airway diseases. To fully exploit the potential of this important tool, numerous technical variables must be thoughtfully considered and carefully executed.
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Affiliation(s)
- Rhianna E Lee
- Marsico Lung Institute and Cystic Fibrosis Research Center, United States; Department of Cell Biology and Physiology, United States
| | - Boris Reidel
- Marsico Lung Institute and Cystic Fibrosis Research Center, United States; Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - Mark R Nelson
- Marsico Lung Institute and Cystic Fibrosis Research Center, United States
| | - Jade K Macdonald
- Marsico Lung Institute and Cystic Fibrosis Research Center, United States
| | - Mehmet Kesimer
- Marsico Lung Institute and Cystic Fibrosis Research Center, United States; Department of Pathology and Laboratory Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, United States
| | - Scott H Randell
- Marsico Lung Institute and Cystic Fibrosis Research Center, United States; Department of Cell Biology and Physiology, United States.
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3
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Reddy-Vari H, Kim Y, Rajput C, Sajjan US. Increased expression of miR146a dysregulates TLR2-induced HBD2 in airway epithelial cells from patients with COPD. ERJ Open Res 2023; 9:00694-2022. [PMID: 37228294 PMCID: PMC10204848 DOI: 10.1183/23120541.00694-2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 02/23/2023] [Indexed: 05/27/2023] Open
Abstract
Background Airway epithelial cells from patients with COPD show suboptimal innate immune responses to nontypeable Haemophilus influenzae (NTHi) and Toll-like receptor (TLR)2 ligands despite expressing TLR2 similar to normal airway epithelial cells, but the underlying mechanisms are poorly understood. Methods Normal or COPD mucociliary-differentiated airway epithelial cells were treated with TLR2 agonists or infected with NTHi and expression of β-defensin (HBD)2 was examined. Interleukin-1 receptor-associated kinase (IRAK)-1 and microRNA (miR)146a were genetically inhibited in normal and COPD airway epithelial cell cultures, respectively, and HBD2 responses to TLR2 ligands were determined. IRAK-1 expression in lung sections was determined by immunofluorescence microscopy. Results Compared to normal, COPD airway epithelial cell cultures showed impaired expression of HBD2 in response to TLR2 agonists or NTHi infection. Apical secretions from TLR2 agonist-treated normal, but not COPD, airway epithelial cells efficiently killed NTHi. Knockdown of HBD2 significantly reduced NTHi killing by apical secretions of normal airway epithelial cells. Compared to normal, COPD cells showed significantly reduced expression of IRAK-1 and this was associated with increased expression of miR146a. Inhibition of miR146a increased the expression of IRAK-1, improved the expression of HBD2 in response to TLR2 agonists in COPD cells and enhanced the killing of bacteria by apical secretions obtained from TLR2 agonist-treated COPD cells. Bronchial epithelium of COPD patients showed reduced expression of IRAK-1. Conclusions These results suggest that reduced levels of IRAK-1 due to increased expression of miR146a may contribute to impaired expression of TLR2-induced HBD2 in COPD airway epithelial cells.
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Affiliation(s)
- Hymavathi Reddy-Vari
- Department of Microbiology Immunology and Inflammation, Lewis Katz Medical School, Temple University, Philadelphia, PA, USA
| | - Yerin Kim
- Department of Microbiology Immunology and Inflammation, Lewis Katz Medical School, Temple University, Philadelphia, PA, USA
| | - Charu Rajput
- Department of Microbiology Immunology and Inflammation, Lewis Katz Medical School, Temple University, Philadelphia, PA, USA
| | - Umadevi S. Sajjan
- Department of Microbiology Immunology and Inflammation, Lewis Katz Medical School, Temple University, Philadelphia, PA, USA
- Department of Thoracic Surgery and Medicine, Lewis Katz Medical School, Temple University, Philadelphia, PA, USA
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4
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Kayongo A, Robertson NM, Siddharthan T, Ntayi ML, Ndawula JC, Sande OJ, Bagaya BS, Kirenga B, Mayanja-Kizza H, Joloba ML, Forslund SK. Airway microbiome-immune crosstalk in chronic obstructive pulmonary disease. Front Immunol 2023; 13:1085551. [PMID: 36741369 PMCID: PMC9890194 DOI: 10.3389/fimmu.2022.1085551] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 12/28/2022] [Indexed: 01/19/2023] Open
Abstract
Chronic Obstructive Pulmonary Disease (COPD) has significantly contributed to global mortality, with three million deaths reported annually. This impact is expected to increase over the next 40 years, with approximately 5 million people predicted to succumb to COPD-related deaths annually. Immune mechanisms driving disease progression have not been fully elucidated. Airway microbiota have been implicated. However, it is still unclear how changes in the airway microbiome drive persistent immune activation and consequent lung damage. Mechanisms mediating microbiome-immune crosstalk in the airways remain unclear. In this review, we examine how dysbiosis mediates airway inflammation in COPD. We give a detailed account of how airway commensal bacteria interact with the mucosal innate and adaptive immune system to regulate immune responses in healthy or diseased airways. Immune-phenotyping airway microbiota could advance COPD immunotherapeutics and identify key open questions that future research must address to further such translation.
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Affiliation(s)
- Alex Kayongo
- Makerere University Lung Institute, Makerere University College of Health Sciences, Kampala, Uganda,Department of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda,Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda,Department of Medicine, Center for Emerging Pathogens, Rutgers, The State University of New Jersey, New Jersey Medical School, Newark, NJ, United States
| | | | - Trishul Siddharthan
- Division of Pulmonary Medicine, School of Medicine, University of Miami, Miami, FL, United States
| | - Moses Levi Ntayi
- Makerere University Lung Institute, Makerere University College of Health Sciences, Kampala, Uganda,Department of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda,Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Josephine Caren Ndawula
- Makerere University Lung Institute, Makerere University College of Health Sciences, Kampala, Uganda
| | - Obondo J. Sande
- Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Bernard S. Bagaya
- Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Bruce Kirenga
- Makerere University Lung Institute, Makerere University College of Health Sciences, Kampala, Uganda
| | - Harriet Mayanja-Kizza
- Department of Medicine, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Moses L. Joloba
- Department of Immunology and Molecular Biology, College of Health Sciences, Makerere University, Kampala, Uganda
| | - Sofia K. Forslund
- Experimental and Clinical Research Center, Max Delbrück Center for Molecular Medicine in the Helmholtz Association, Berlin, Germany,Experimental and Clinical Research Center, a cooperation of Charité - Universitatsmedizin Berlin and Max Delbrück Center for Molecular Medicine, Berlin, Germany,Charité-Universitatsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany,DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany,Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany,*Correspondence: Sofia K. Forslund,
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5
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Di Cristo L, Sabella S. Cell Cultures at the Air-Liquid Interface and Their Application in Cancer Research. Methods Mol Biol 2023; 2645:41-64. [PMID: 37202611 DOI: 10.1007/978-1-0716-3056-3_2] [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] [Indexed: 05/20/2023]
Abstract
Air-liquid interface (ALI) cell cultures are considered a valid tool for the replacement of animals in biomedical research. By mimicking crucial features of the human in vivo epithelial barriers (e.g., lung, intestine, and skin), ALI cell cultures enable proper structural architectures and differentiated functions of normal and diseased tissue barriers. Thereby, ALI models realistically resemble tissue conditions and provide in vivo-like responses. Since their implementation, they are routinely used in several applications, from toxicity testing to cancer research, receiving an appreciable level of acceptance (in some cases a regulatory acceptance) as attractive testing alternatives to animals. In this chapter, an overview of the ALI cell cultures will be presented together with their application in cancer cell culture, highlighting the potential advantages and disadvantages of the model.
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Affiliation(s)
- Luisana Di Cristo
- D3 PharmaChemistry, Nanoregulatory Group, Italian Institute of Technology, Genoa, Italy.
| | - Stefania Sabella
- D3 PharmaChemistry, Nanoregulatory Group, Italian Institute of Technology, Genoa, Italy
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6
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Early transcriptional responses of bronchial epithelial cells to whole cigarette smoke mirror those of in-vivo exposed human bronchial mucosa. Respir Res 2022; 23:227. [PMID: 36056356 PMCID: PMC9440516 DOI: 10.1186/s12931-022-02150-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 08/16/2022] [Indexed: 01/02/2023] Open
Abstract
BACKGROUND Despite the well-known detrimental effects of cigarette smoke (CS), little is known about the complex gene expression dynamics in the early stages after exposure. This study aims to investigate early transcriptomic responses following CS exposure of airway epithelial cells in culture and compare these to those found in human CS exposure studies. METHODS Primary bronchial epithelial cells (PBEC) were differentiated at the air-liquid interface (ALI) and exposed to whole CS. Bulk RNA-sequencing was performed at 1 h, 4 h, and 24 h hereafter, followed by differential gene expression analysis. Results were additionally compared to data retrieved from human CS studies. RESULTS ALI-PBEC gene expression in response to CS was most significantly changed at 4 h after exposure. Early transcriptomic changes (1 h, 4 h post CS exposure) were related to oxidative stress, xenobiotic metabolism, higher expression of immediate early genes and pro-inflammatory pathways (i.e., Nrf2, AP-1, AhR). At 24 h, ferroptosis-associated genes were significantly increased, whereas PRKN, involved in removing dysfunctional mitochondria, was downregulated. Importantly, the transcriptome dynamics of the current study mirrored in-vivo human studies of acute CS exposure, chronic smokers, and inversely mirrored smoking cessation. CONCLUSION These findings show that early after CS exposure xenobiotic metabolism and pro-inflammatory pathways were activated, followed by activation of the ferroptosis-related cell death pathway. Moreover, significant overlap between these transcriptomic responses in the in-vitro model and human in-vivo studies was found, with an early response of ciliated cells. These results provide validation for the use of ALI-PBEC cultures to study the human lung epithelial response to inhaled toxicants.
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7
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Jha A, Ward T, Walker S, Goodwin AT, Chalmers JD. Review of the British Thoracic Society Winter Meeting 2021, 24-26 November 2021. Thorax 2022; 77:1030-1035. [PMID: 35907640 DOI: 10.1136/thorax-2022-219150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 07/13/2022] [Indexed: 11/04/2022]
Abstract
The Winter Meeting of the British Thoracic Society (BTS) is a platform for the latest clinical and scientific research in respiratory medicine. This review summarises the key symposia and presentations from the BTS Winter Meeting 2021 held online due to the COVID-19 pandemic.
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Affiliation(s)
- Akhilesh Jha
- Department of Medicine, University of Cambridge, Cambridge, UK
| | - Tom Ward
- Department of Respiratory Sciences, University of Leicester, Leicester, UK
| | - Steven Walker
- School of Clinical Sciences, University of Bristol Academic Respiratory Unit, Westbury on Trym, UK
| | - Amanda T Goodwin
- Nottingham NIHR Respiratory Biomedical Research Centre, University of Nottingham, Nottingham, UK
| | - James D Chalmers
- Division of Molecular and Clinical Medicine, Ninewells Hospital and Medical School, University of Dundee, Dundee, UK
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8
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Aghapour M, Tulen CBM, Abdi Sarabi M, Weinert S, Müsken M, Relja B, van Schooten FJ, Jeron A, Braun-Dullaeus R, Remels AH, Bruder D. Cigarette Smoke Extract Disturbs Mitochondria-Regulated Airway Epithelial Cell Responses to Pneumococci. Cells 2022; 11:1771. [PMID: 35681466 PMCID: PMC9179351 DOI: 10.3390/cells11111771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 05/21/2022] [Accepted: 05/24/2022] [Indexed: 01/04/2023] Open
Abstract
Mitochondrial functionality is crucial for the execution of physiologic functions of metabolically active cells in the respiratory tract including airway epithelial cells (AECs). Cigarette smoke is known to impair mitochondrial function in AECs. However, the potential contribution of mitochondrial dysfunction in AECs to airway infection and airway epithelial barrier dysfunction is unknown. In this study, we used an in vitro model based on AECs exposed to cigarette smoke extract (CSE) followed by an infection with Streptococcus pneumoniae (Sp). The levels of oxidative stress as an indicator of mitochondrial stress were quantified upon CSE and Sp treatment. In addition, expression of proteins associated with mitophagy, mitochondrial content, and biogenesis as well as mitochondrial fission and fusion was quantified. Transcriptional AEC profiling was performed to identify the potential changes in innate immune pathways and correlate them with indices of mitochondrial function. We observed that CSE exposure substantially altered mitochondrial function in AECs by suppressing mitochondrial complex protein levels, reducing mitochondrial membrane potential and increasing mitochondrial stress and mitophagy. Moreover, CSE-induced mitochondrial dysfunction correlated with reduced enrichment of genes involved in apical junctions and innate immune responses to Sp, particularly type I interferon responses. Together, our results demonstrated that CSE-induced mitochondrial dysfunction may contribute to impaired innate immune responses to Sp.
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Affiliation(s)
- Mahyar Aghapour
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.A.); (A.J.)
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Christy B. M. Tulen
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (C.B.M.T.); (F.-J.v.S.); (A.H.R.)
| | - Mohsen Abdi Sarabi
- Department of Internal Medicine/Cardiology and Angiology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.A.S.); (S.W.)
| | - Sönke Weinert
- Department of Internal Medicine/Cardiology and Angiology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.A.S.); (S.W.)
| | - Mathias Müsken
- Central Facility for Microscopy, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany;
| | - Borna Relja
- Experimental Radiology, Department of Radiology and Nuclear Medicine, 39120 Magdeburg, Germany;
| | - Frederik-Jan van Schooten
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (C.B.M.T.); (F.-J.v.S.); (A.H.R.)
| | - Andreas Jeron
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.A.); (A.J.)
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
| | - Rüdiger Braun-Dullaeus
- Department of Internal Medicine/Cardiology and Angiology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.A.S.); (S.W.)
| | - Alexander H. Remels
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism (NUTRIM), Maastricht University Medical Center, 6229 ER Maastricht, The Netherlands; (C.B.M.T.); (F.-J.v.S.); (A.H.R.)
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, 39120 Magdeburg, Germany; (M.A.); (A.J.)
- Immune Regulation Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany
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9
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Skronska-Wasek W, Durlanik S, Le HQ, Schroeder V, Kitt K, Garnett JP, Pflanz S. The antimicrobial peptide S100A8/A9 produced by airway epithelium functions as a potent and direct regulator of macrophage phenotype and function. Eur Respir J 2022; 59:13993003.02732-2020. [PMID: 34561292 PMCID: PMC8989056 DOI: 10.1183/13993003.02732-2020] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 08/10/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND Elevated counts of alveolar macrophages and attenuated phagocytic capacity are associated with chronic obstructive pulmonary disease (COPD). Factors governing macrophage phagocytosis are poorly understood. In this study we aimed to compare the influence of airway epithelial cell secretions from individuals with COPD and without COPD (non-COPD) on macrophage phagocytic activity, and the role of antimicrobial peptides (AMPs). METHODS Supernatants from non-COPD and COPD small airway epithelial cell (SAEC) cultures exposed to non-typeable Haemophilus influenzae (NTHi) were applied to human monocyte-derived macrophages (MDMs) to assess their influence on phagocytosis. SAECs were analysed for changes in AMP expression by quantitative reverse transcription PCR, and the influence of select AMPs on macrophage phenotype and function was assessed by flow cytometry and metabolic activity assay. RESULTS Secretions from the apical and basolateral surface of NTHi-exposed SAECs from non-COPD donors elicited superior phagocytic capacity in MDMs. Moreover, NTHi exposure led to a rapid increase in the expression of a range of AMPs by non-COPD SAECs, but this response was delayed in COPD SAECs. We demonstrate that treatment with AMPs β-defensin 2 and S100 calcium binding protein A8/S100 calcium binding protein A9 (S100A8/A9) improved the phagocytic capacity of MDMs. In-depth analysis of the influence of S100A8/A9 on MDMs revealed a role for this AMP in macrophage phenotype and function. Furthermore, we show that the expression of S100A8 and S100A9 is directly regulated by WNT/β-catenin signalling, a known deregulated pathway in COPD. CONCLUSION In conclusion, for the first time, we demonstrate that airway epithelium from patients with COPD has a reduced capacity to support the phagocytic function of macrophages in response to acute NTHi exposure, and we identify the WNT/β-catenin signalling-modulated and epithelium-derived S100A8/A9 as a potent regulator of macrophage phenotype and function.
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Affiliation(s)
- Wioletta Skronska-Wasek
- Cancer Immunology and Immune Modulation, Boehringer Ingelheim Pharma GmbH and Co KG, Biberach, Germany,Immunology and Respiratory Diseases Research, Boehringer Ingelheim Pharma GmbH and Co KG, Biberach, Germany,Corresponding author: Wioletta Skronska-Wasek ()
| | - Sibel Durlanik
- Cancer Immunology and Immune Modulation, Boehringer Ingelheim Pharma GmbH and Co KG, Biberach, Germany
| | - Huy Quang Le
- Immunology and Respiratory Diseases Research, Boehringer Ingelheim Pharma GmbH and Co KG, Biberach, Germany
| | - Victoria Schroeder
- Immunology and Respiratory Diseases Research, Boehringer Ingelheim Pharma GmbH and Co KG, Biberach, Germany
| | - Kerstin Kitt
- Cancer Immunology and Immune Modulation, Boehringer Ingelheim Pharma GmbH and Co KG, Biberach, Germany
| | - James Peter Garnett
- Immunology and Respiratory Diseases Research, Boehringer Ingelheim Pharma GmbH and Co KG, Biberach, Germany
| | - Stefan Pflanz
- Cancer Immunology and Immune Modulation, Boehringer Ingelheim Pharma GmbH and Co KG, Biberach, Germany
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10
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Aghapour M, Ubags ND, Bruder D, Hiemstra PS, Sidhaye V, Rezaee F, Heijink IH. Role of air pollutants in airway epithelial barrier dysfunction in asthma and COPD. Eur Respir Rev 2022; 31:31/163/210112. [PMID: 35321933 PMCID: PMC9128841 DOI: 10.1183/16000617.0112-2021] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 11/13/2021] [Indexed: 12/12/2022] Open
Abstract
Chronic exposure to environmental pollutants is a major contributor to the development and progression of obstructive airway diseases, including asthma and COPD. Understanding the mechanisms underlying the development of obstructive lung diseases upon exposure to inhaled pollutants will lead to novel insights into the pathogenesis, prevention and treatment of these diseases. The respiratory epithelial lining forms a robust physicochemical barrier protecting the body from inhaled toxic particles and pathogens. Inhalation of airborne particles and gases may impair airway epithelial barrier function and subsequently lead to exaggerated inflammatory responses and airway remodelling, which are key features of asthma and COPD. In addition, air pollutant-induced airway epithelial barrier dysfunction may increase susceptibility to respiratory infections, thereby increasing the risk of exacerbations and thus triggering further inflammation. In this review, we discuss the molecular and immunological mechanisms involved in physical barrier disruption induced by major airborne pollutants and outline their implications in the pathogenesis of asthma and COPD. We further discuss the link between these pollutants and changes in the lung microbiome as a potential factor for aggravating airway diseases. Understanding these mechanisms may lead to identification of novel targets for therapeutic intervention to restore airway epithelial integrity in asthma and COPD. Exposure to air pollution induces airway epithelial barrier dysfunction through several mechanisms including increased oxidative stress, exaggerated cytokine responses and impaired host defence, which contributes to development of asthma and COPD. https://bit.ly/3DHL1CA
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Affiliation(s)
- Mahyar Aghapour
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Niki D Ubags
- Faculty of Biology and Medicine, University of Lausanne, Service de Pneumologie, CHUV, Epalinges, Switzerland
| | - Dunja Bruder
- Infection Immunology Group, Institute of Medical Microbiology, Infection Control and Prevention, Health Campus Immunology, Infectiology and Inflammation, Otto-von-Guericke University, Magdeburg, Germany.,Immune Regulation Group, Helmholtz Center for Infection Research, Braunschweig, Germany
| | - Pieter S Hiemstra
- Dept of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - Venkataramana Sidhaye
- Pulmonary and Critical Care Medicine, Environmental Health and Engineering, Johns Hopkins University, Baltimore, MD, USA
| | - Fariba Rezaee
- Center for Pediatric Pulmonary Medicine, Cleveland Clinic Children's, Cleveland, OH, USA.,Dept of Inflammation and Immunity, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
| | - Irene H Heijink
- University of Groningen, University Medical Center Groningen, Depts of Pathology and Medical Biology and Pulmonology, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands
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11
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Tulen CBM, Wang Y, Beentjes D, Jessen PJJ, Ninaber DK, Reynaert NL, van Schooten FJ, Opperhuizen A, Hiemstra PS, Remels AHV. Dysregulated mitochondrial metabolism upon cigarette smoke exposure in various human bronchial epithelial cell models. Dis Model Mech 2022; 15:dmm049247. [PMID: 35344036 PMCID: PMC8990921 DOI: 10.1242/dmm.049247] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 12/29/2021] [Indexed: 01/13/2023] Open
Abstract
Exposure to cigarette smoke (CS) is the primary risk factor for developing chronic obstructive pulmonary disease. The impact of CS exposure on the molecular mechanisms involved in mitochondrial quality control in airway epithelial cells is incompletely understood. Undifferentiated or differentiated primary bronchial epithelial cells were acutely/chronically exposed to whole CS (WCS) or CS extract (CSE) in submerged or air-liquid interface conditions. Abundance of key regulators controlling mitochondrial biogenesis, mitophagy and mitochondrial dynamics was assessed. Acute exposure to WCS or CSE increased the abundance of components of autophagy and receptor-mediated mitophagy in all models. Although mitochondrial content and dynamics appeared to be unaltered in response to CS, changes in both the molecular control of mitochondrial biogenesis and a shift toward an increased glycolytic metabolism were observed in particular in differentiated cultures. These alterations persisted, at least in part, after chronic exposure to WCS during differentiation and upon subsequent discontinuation of WCS exposure. In conclusion, smoke exposure alters the regulation of mitochondrial metabolism in airway epithelial cells, but observed alterations may differ between various culture models used. This article has an associated First Person interview with the joint first authors of the paper.
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Affiliation(s)
- Christy B. M. Tulen
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - Ying Wang
- Department of Pulmonology, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands
| | - Daan Beentjes
- Department of Pulmonology, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands
| | - Phyllis J. J. Jessen
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - Dennis K. Ninaber
- Department of Pulmonology, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands
| | - Niki L. Reynaert
- Department of Respiratory Medicine, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, PO Box 616, 6200 MD Maastricht, The Netherlands
- Primary Lung Culture Facility, Maastricht University Medical Center+, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - Frederik-Jan van Schooten
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, PO Box 616, 6200 MD Maastricht, The Netherlands
| | - Antoon Opperhuizen
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, PO Box 616, 6200 MD Maastricht, The Netherlands
- Office of Risk Assessment and Research, Netherlands Food and Consumer Product Safety Authority, PO Box 8433, 3503 RK Utrecht, The Netherlands
| | - Pieter S. Hiemstra
- Department of Pulmonology, Leiden University Medical Center, PO Box 9600, 2300 RC Leiden, The Netherlands
| | - Alexander H. V. Remels
- Department of Pharmacology and Toxicology, School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Center+, PO Box 616, 6200 MD Maastricht, The Netherlands
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12
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Birru RL, Bein K, Bondarchuk N, Wells H, Lin Q, Di YP, Leikauf GD. Antimicrobial and Anti-Inflammatory Activity of Apple Polyphenol Phloretin on Respiratory Pathogens Associated With Chronic Obstructive Pulmonary Disease. Front Cell Infect Microbiol 2021; 11:652944. [PMID: 34881190 PMCID: PMC8645934 DOI: 10.3389/fcimb.2021.652944] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 10/11/2021] [Indexed: 11/13/2022] Open
Abstract
Bacterial infections contribute to accelerated progression and severity of chronic obstructive pulmonary disease (COPD). Apples have been associated with reduced symptoms of COPD and disease development due to their polyphenolic content. We examined if phloretin, an apple polyphenol, could inhibit bacterial growth and inflammation induced by the main pathogens associated with COPD. Phloretin displayed bacteriostatic and anti-biofilm activity against nontypeable Haemophilus influenzae (NTHi), Moraxella catarrhalis, Streptococcus pneumoniae, and to a lesser extent, Pseudomonas aeruginosa. In vitro, phloretin inhibited NTHi adherence to NCI-H292 cells, a respiratory epithelial cell line. Phloretin also exhibited anti-inflammatory activity in COPD pathogen-induced RAW 264.7 macrophages and human bronchial epithelial cells derived from normal and COPD diseased lungs. In mice, NTHi bacterial load and chemokine (C-X-C motif) ligand 1 (CXCL1), a neutrophil chemoattractant, was attenuated by a diet supplemented with phloretin. Our data suggests that phloretin is a promising antimicrobial and anti-inflammatory nutraceutical for reducing bacterial-induced injury in COPD.
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Affiliation(s)
- Rahel L Birru
- Department of Environmental and Occupational Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Kiflai Bein
- Department of Environmental and Occupational Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Natalya Bondarchuk
- Department of Environmental and Occupational Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Heather Wells
- Department of Environmental and Occupational Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Qiao Lin
- Department of Environmental and Occupational Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - Y Peter Di
- Department of Environmental and Occupational Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
| | - George D Leikauf
- Department of Environmental and Occupational Health, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, United States
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13
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Contribution of dipeptidyl peptidase 4 to non-typeable Haemophilus influenzae-induced lung inflammation in COPD. Clin Sci (Lond) 2021; 135:2067-2083. [PMID: 34405230 DOI: 10.1042/cs20210099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 08/17/2021] [Accepted: 08/17/2021] [Indexed: 12/13/2022]
Abstract
Dipeptidyl peptidase 4 (DPP4) expression is increased in the lungs of chronic obstructive pulmonary disease (COPD). DPP4 is known to be associated with inflammation in various organs, including LPS-induced acute lung inflammation. Since non-typeable Haemophilus influenzae (NTHi) causes acute exacerbations in COPD patients, we examined the contribution of DPP4 in NTHi-induced lung inflammation in COPD. Pulmonary macrophages isolated from COPD patients showed higher expression of DPP4 than the macrophages isolated from normal subjects. In response to NTHi infection, COPD, but not normal macrophages show a further increase in the expression of DPP4. COPD macrophages also showed higher expression of IL-1β, and CCL3 responses to NTHi than normal, and treatment with DPP4 inhibitor, diprotin A attenuated this response. To examine the contribution of DPP4 in NTHi-induced lung inflammation, COPD mice were infected with NTHi, treated with diprotin A or PBS intraperitoneally, and examined for DPP4 expression, lung inflammation, and cytokine expression. Mice with COPD phenotype showed increased expression of DPP4, which increased further following NTHi infection. DPP4 expression was primarily observed in the infiltrated inflammatory cells. NTHi-infected COPD mice also showed sustained neutrophilic lung inflammation and expression of CCL3, and this was inhibited by DPP4 inhibitor. These observations indicate that enhanced expression of DPP4 in pulmonary macrophages may contribute to sustained lung inflammation in COPD following NTHi infection. Therefore, inhibition of DPP4 may reduce the severity of NTHi-induced lung inflammation in COPD.
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14
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Paplinska-Goryca M, Misiukiewicz-Stepien P, Proboszcz M, Nejman-Gryz P, Gorska K, Zajusz-Zubek E, Krenke R. Interactions of nasal epithelium with macrophages and dendritic cells variously alter urban PM-induced inflammation in healthy, asthma and COPD. Sci Rep 2021; 11:13259. [PMID: 34168212 PMCID: PMC8225888 DOI: 10.1038/s41598-021-92626-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Accepted: 06/08/2021] [Indexed: 02/05/2023] Open
Abstract
Urban particulate matter (UPM) is an important trigger of airway inflammation. The cross-talk between the external and internal matrix in the respiratory tract occurs due to the transepithelial network of macrophages/dendritic cells. This study characterized the immune processes induced by the epithelium after UPM exposure in special regard to interactions with monocyte-derived dendritic cells (moDCs) and monocyte-derived macrophages (moMφs) in obstructive lung diseases. A triple-cell co-culture model (8 controls, 10 asthma, and 8 patients with COPD) utilized nasal epithelial cells, along with moMφs, and moDCs was exposed to UPM for 24 h. The inflammatory response of nasal epithelial cells to UPM stimulation is affected differently by cell-cell interactions in healthy people, asthma or COPD patients of which the interactions with DCs had the strongest impact on the inflammatory reaction of epithelial cells after UPM exposure. The epithelial remodeling and DCs dysfunction might accelerate the inflammation after air pollution exposure in asthma and COPD.
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Affiliation(s)
- Magdalena Paplinska-Goryca
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Banacha 1a, 02-097, Warsaw, Poland.
| | - Paulina Misiukiewicz-Stepien
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Banacha 1a, 02-097, Warsaw, Poland
- Postgraduate School of Molecular Medicine, Medical University of Warsaw, Warsaw, Poland
| | - Malgorzata Proboszcz
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Banacha 1a, 02-097, Warsaw, Poland
| | - Patrycja Nejman-Gryz
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Banacha 1a, 02-097, Warsaw, Poland
| | - Katarzyna Gorska
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Banacha 1a, 02-097, Warsaw, Poland
| | - Elwira Zajusz-Zubek
- Faculty of Energy and Environmental Engineering, Department of Air Protection, Silesian University of Technology, Gliwice, Poland
| | - Rafal Krenke
- Department of Internal Medicine, Pulmonary Diseases and Allergy, Medical University of Warsaw, Banacha 1a, 02-097, Warsaw, Poland
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15
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Luo Q, Peng X, Zhang H. Effect of terbutaline plus doxofylline on chronic obstructive pulmonary disease. Am J Transl Res 2021; 13:6959-6965. [PMID: 34306449 PMCID: PMC8290766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Accepted: 02/01/2021] [Indexed: 06/13/2023]
Abstract
OBJECTIVES This study focused on patients with chronic obstructive pulmonary disease (COPD) and aimed at investigating the effect of terbutaline plus doxofylline on their pulmonary function and quality of life. METHODS Ninety COPD patients were divided by using a random number table into a control group (administration of doxofylline) and experimental group (administration of terbutaline combined with doxofylline), with 45 patients in each group. The therapeutic efficacy, pre- and post-treatment pulmonary function and the quality of life were compared between the control and experimental groups. RESULTS After treatment, patients in the experimental group had lower levels of interleukin-8, tumor necrosis factor α and C-reactive protein (all P<0.001), higher forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC), and FEVl/FVC (all P<0.001), and lower total score of COPD assessment test (P<0.05) compared with the control group. CONCLUSION Terbutaline combined with doxofylline for the treatment of COPD patients can efficiently decrease inflammatory factor levels, and bring them better pulmonary function and quality of life.
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Affiliation(s)
- Qiuyan Luo
- Department of Respiratory Medicine, Sichuan Provincial Transportation Department Road Bureau HospitalChengdu, Sichuan Province, China
| | - Xue Peng
- Department of Internal Medicine, Sichuan Provincial Transportation Department Road Bureau HospitalChengdu, Sichuan Province, China
| | - Hua Zhang
- Department of Geriatrics, Sichuan Provincial People’s HospitalChengdu, Sichuan Province, China
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16
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Baldassi D, Gabold B, Merkel O. Air-liquid interface cultures of the healthy and diseased human respiratory tract: promises, challenges and future directions. ADVANCED NANOBIOMED RESEARCH 2021; 1:2000111. [PMID: 34345878 PMCID: PMC7611446 DOI: 10.1002/anbr.202000111] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Air-liquid interface (ALI) culture models currently represent a valid instrument to recreate the typical aspects of the respiratory tract in vitro in both healthy and diseased state. They can help reducing the number of animal experiments, therefore, supporting the 3R principle. This review discusses ALI cultures and co-cultures derived from immortalized as well as primary cells, which are used to study the most common disorders of the respiratory tract, in terms of both pathophysiology and drug screening. The article displays ALI models used to simulate inflammatory lung diseases such as chronic obstructive pulmonary disease (COPD), asthma, cystic fibrosis, lung cancer, and viral infections. It also includes a focus on ALI cultures described in literature studying respiratory viruses such as SARS-CoV-2 causing the global Covid-19 pandemic at the time of writing this review. Additionally, commercially available models of ALI cultures are presented. Ultimately, the aim of this review is to provide a detailed overview of ALI models currently available and to critically discuss them in the context of the most prevalent diseases of the respiratory tract.
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Affiliation(s)
- Domizia Baldassi
- Pharmaceutical Technology and Biopharmacy, LMU Munich Butenandtstr. 5-13, 81377 Munich, Germany
| | - Bettina Gabold
- Pharmaceutical Technology and Biopharmacy, LMU Munich Butenandtstr. 5-13, 81377 Munich, Germany
| | - Olivia Merkel
- Pharmaceutical Technology and Biopharmacy, LMU Munich Butenandtstr. 5-13, 81377 Munich, Germany
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17
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Orr JC, Hynds RE. Stem Cell-derived Respiratory Epithelial Cell Cultures as Human Disease Models. Am J Respir Cell Mol Biol 2021; 64:657-668. [PMID: 33428856 PMCID: PMC8456877 DOI: 10.1165/rcmb.2020-0440tr] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 01/11/2021] [Indexed: 12/11/2022] Open
Abstract
Advances in stem cell biology and the understanding of factors that determine lung stem cell self-renewal have enabled long-term in vitro culture of human lung cells derived from airway basal and alveolar type II cells. Improved capability to expand and study primary cells long term, including in clonal cultures that are recently derived from a single cell, will allow experiments that address fundamental questions about lung homeostasis and repair, as well as translational questions in asthma, chronic obstructive pulmonary disease, pulmonary fibrosis, and lung cancer research. Here, we provide a brief history of postnatal lung epithelial cell culture and describe recent methodological advances. We further discuss the applications of primary cultures in defining "normal" epithelium, in modeling lung disease, and in future cell therapies.
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Affiliation(s)
- Jessica C Orr
- Lungs for Living Research Centre, UCL Respiratory, Division of Medicine, and
| | - Robert E Hynds
- UCL Cancer Institute, University College London, London, United Kingdom
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18
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Aguiar JA, Huff RD, Tse W, Stämpfli MR, McConkey BJ, Doxey AC, Hirota JA. Transcriptomic and barrier responses of human airway epithelial cells exposed to cannabis smoke. Physiol Rep 2020; 7:e14249. [PMID: 31646766 PMCID: PMC6811686 DOI: 10.14814/phy2.14249] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2019] [Revised: 08/25/2019] [Accepted: 09/04/2019] [Indexed: 01/04/2023] Open
Abstract
Globally, many jurisdictions are legalizing or decriminalizing cannabis, creating a potential public health issue that would benefit from experimental evidence to inform policy, government regulations, and user practices. Tobacco smoke exposure science has created a body of knowledge that demonstrates the conclusive negative impacts on respiratory health; similar knowledge remains to be established for cannabis. To address this unmet need, we performed in vitro functional and transcriptomic experiments with a human airway epithelial cell line (Calu-3) exposed to cannabis smoke, with tobacco smoke as a positive control. Demonstrating the validity of our in vitro model, tobacco smoke induced gene expression profiles that were significantly correlated with gene expression profiles from published tobacco exposure datasets from bronchial brushings and primary human airway epithelial cell cultures. Applying our model to cannabis smoke, we demonstrate that cannabis smoke induced functional and transcriptional responses that overlapped with tobacco smoke. Ontology and pathway analysis revealed that cannabis smoke induced DNA replication and oxidative stress responses. Functionally, cannabis smoke impaired epithelial cell barrier function, antiviral responses, and increased inflammatory mediator production. Our study reveals striking similarities between cannabis and tobacco smoke exposure on impairing barrier function, suppressing antiviral pathways, potentiating of pro-inflammatory mediators, and inducing oncogenic and oxidative stress gene expression signatures. Collectively our data suggest that cannabis smoke exposure is not innocuous and may possess many of the deleterious properties of tobacco smoke, warranting additional studies to support public policy, government regulations, and user practices.
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Affiliation(s)
- Jennifer A Aguiar
- Department of Biology, University of Waterloo, Waterloo, Ontario, Canada
| | - Ryan D Huff
- Division of Respiratory Medicine, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Wayne Tse
- Division of Respiratory Medicine, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Martin R Stämpfli
- Firestone Institute for Respiratory Health - Division of Respirology, Department of Medicine, McMaster University, Hamilton, Ontario
| | - Brendan J McConkey
- Department of Biology, University of Waterloo, Waterloo, Ontario, Canada.,Firestone Institute for Respiratory Health - Division of Respirology, Department of Medicine, McMaster University, Hamilton, Ontario
| | - Andrew C Doxey
- Department of Biology, University of Waterloo, Waterloo, Ontario, Canada.,Firestone Institute for Respiratory Health - Division of Respirology, Department of Medicine, McMaster University, Hamilton, Ontario
| | - Jeremy A Hirota
- Department of Biology, University of Waterloo, Waterloo, Ontario, Canada.,Division of Respiratory Medicine, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada.,Firestone Institute for Respiratory Health - Division of Respirology, Department of Medicine, McMaster University, Hamilton, Ontario
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19
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Singanayagam A, Glanville N, Cuthbertson L, Bartlett NW, Finney LJ, Turek E, Bakhsoliani E, Calderazzo MA, Trujillo-Torralbo MB, Footitt J, James PL, Fenwick P, Kemp SV, Clarke TB, Wedzicha JA, Edwards MR, Moffatt M, Cookson WO, Mallia P, Johnston SL. Inhaled corticosteroid suppression of cathelicidin drives dysbiosis and bacterial infection in chronic obstructive pulmonary disease. Sci Transl Med 2020; 11:11/507/eaav3879. [PMID: 31462509 DOI: 10.1126/scitranslmed.aav3879] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 02/12/2019] [Accepted: 07/23/2019] [Indexed: 12/11/2022]
Abstract
Bacterial infection commonly complicates inflammatory airway diseases such as chronic obstructive pulmonary disease (COPD). The mechanisms of increased infection susceptibility and how use of the commonly prescribed therapy inhaled corticosteroids (ICS) accentuates pneumonia risk in COPD are poorly understood. Here, using analysis of samples from patients with COPD, we show that ICS use is associated with lung microbiota disruption leading to proliferation of streptococcal genera, an effect that could be recapitulated in ICS-treated mice. To study mechanisms underlying this effect, we used cellular and mouse models of streptococcal expansion with Streptococcus pneumoniae, an important pathogen in COPD, to demonstrate that ICS impairs pulmonary clearance of bacteria through suppression of the antimicrobial peptide cathelicidin. ICS impairment of pulmonary immunity was dependent on suppression of cathelicidin because ICS had no effect on bacterial loads in mice lacking cathelicidin (Camp -/-) and exogenous cathelicidin prevented ICS-mediated expansion of streptococci within the microbiota and improved bacterial clearance. Suppression of pulmonary immunity by ICS was mediated by augmentation of the protease cathepsin D. Collectively, these data suggest a central role for cathepsin D/cathelicidin in the suppression of antibacterial host defense by ICS in COPD. Therapeutic restoration of cathelicidin to boost antibacterial immunity and beneficially modulate the lung microbiota might be an effective strategy in COPD.
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Affiliation(s)
- Aran Singanayagam
- National Heart and Lung Institute, St Mary's Campus, Imperial College London, London W2 1PG, UK.
| | - Nicholas Glanville
- National Heart and Lung Institute, St Mary's Campus, Imperial College London, London W2 1PG, UK
| | - Leah Cuthbertson
- National Heart and Lung Institute, Brompton Campus, Imperial College London, London SW3 6LY, UK
| | - Nathan W Bartlett
- National Heart and Lung Institute, St Mary's Campus, Imperial College London, London W2 1PG, UK.,Faculty of Health and Medicine and Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute and University of Newcastle, Newcastle, NSW 2305, Australia
| | - Lydia J Finney
- National Heart and Lung Institute, Brompton Campus, Imperial College London, London SW3 6LY, UK
| | - Elena Turek
- National Heart and Lung Institute, Brompton Campus, Imperial College London, London SW3 6LY, UK
| | - Eteri Bakhsoliani
- National Heart and Lung Institute, St Mary's Campus, Imperial College London, London W2 1PG, UK
| | | | | | - Joseph Footitt
- National Heart and Lung Institute, St Mary's Campus, Imperial College London, London W2 1PG, UK
| | - Phillip L James
- National Heart and Lung Institute, Brompton Campus, Imperial College London, London SW3 6LY, UK
| | - Peter Fenwick
- National Heart and Lung Institute, Brompton Campus, Imperial College London, London SW3 6LY, UK
| | - Samuel V Kemp
- Royal Brompton Hospital, Fulham Road, London SW2 6NP, UK
| | - Thomas B Clarke
- MRC Centre for Molecular Bacteriology and Infection, Department of Medicine, Imperial College London, London SW7 2AZ, UK
| | - Jadwiga A Wedzicha
- National Heart and Lung Institute, Brompton Campus, Imperial College London, London SW3 6LY, UK
| | - Michael R Edwards
- National Heart and Lung Institute, St Mary's Campus, Imperial College London, London W2 1PG, UK
| | - Miriam Moffatt
- National Heart and Lung Institute, Brompton Campus, Imperial College London, London SW3 6LY, UK
| | - William O Cookson
- National Heart and Lung Institute, Brompton Campus, Imperial College London, London SW3 6LY, UK
| | - Patrick Mallia
- National Heart and Lung Institute, St Mary's Campus, Imperial College London, London W2 1PG, UK
| | - Sebastian L Johnston
- National Heart and Lung Institute, St Mary's Campus, Imperial College London, London W2 1PG, UK.
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20
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Movia D, Prina-Mello A. Preclinical Development of Orally Inhaled Drugs (OIDs)-Are Animal Models Predictive or Shall We Move Towards In Vitro Non-Animal Models? Animals (Basel) 2020; 10:E1259. [PMID: 32722259 PMCID: PMC7460012 DOI: 10.3390/ani10081259] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 12/18/2022] Open
Abstract
Respiratory diseases constitute a huge burden in our society, and the global respiratory drug market currently grows at an annual rate between 4% and 6%. Inhalation is the preferred administration method for treating respiratory diseases, as it: (i) delivers the drug directly at the site of action, resulting in a rapid onset; (ii) is painless, thus improving patients' compliance; and (iii) avoids first-pass metabolism reducing systemic side effects. Inhalation occurs through the mouth, with the drug generally exerting its therapeutic action in the lungs. In the most recent years, orally inhaled drugs (OIDs) have found application also in the treatment of systemic diseases. OIDs development, however, currently suffers of an overall attrition rate of around 70%, meaning that seven out of 10 new drug candidates fail to reach the clinic. Our commentary focuses on the reasons behind the poor OIDs translation into clinical products for the treatment of respiratory and systemic diseases, with particular emphasis on the parameters affecting the predictive value of animal preclinical tests. We then review the current advances in overcoming the limitation of animal animal-based studies through the development and adoption of in vitro, cell-based new approach methodologies (NAMs).
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Affiliation(s)
- Dania Movia
- Laboratory for Biological Characterisation of Advanced Materials (LBCAM), Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College, The University of Dublin, Dublin D8, Ireland;
| | - Adriele Prina-Mello
- Laboratory for Biological Characterisation of Advanced Materials (LBCAM), Department of Clinical Medicine, Trinity Translational Medicine Institute, Trinity College, The University of Dublin, Dublin D8, Ireland;
- AMBER Centre, CRANN Institute, Trinity College, The University of Dublin, Dublin D2, Ireland
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21
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Sidletskaya K, Vitkina T, Denisenko Y. The Role of Toll-Like Receptors 2 and 4 in the Pathogenesis of Chronic Obstructive Pulmonary Disease. Int J Chron Obstruct Pulmon Dis 2020; 15:1481-1493. [PMID: 32606656 PMCID: PMC7320879 DOI: 10.2147/copd.s249131] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 05/24/2020] [Indexed: 12/14/2022] Open
Abstract
Currently, chronic obstructive pulmonary disease (COPD) is one of the leading causes of morbidity and mortality worldwide. The determination of immune mechanisms of inflammation in the disease presents an important challenge for fundamental medical research. According to modern views, Toll-like receptors (TLRs), among which TLR2 and TLR4 play a key role, are one of the essential components of inflammatory process in COPD. This review focuses on following aspects: the role of TLR2 and TLR4 in the initiation of inflammatory process in COPD; the mechanisms of influence of various exogenous factors (cigarette smoke, suspended particulate matter, and bacteria) on the expression of TLR2 and TLR4; the contribution of these TLRs to the T-helper (Th) immune response development in COPD, in particular to the Th17 immune response, which contributes to the progression of the disease and therapeutic implications of TLR2 and TLR4 in COPD.
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Affiliation(s)
- Karolina Sidletskaya
- Vladivostok Branch of Federal State Budgetary Science Institution "Far Eastern Scientific Center of Physiology and Pathology of Respiration" - Institute of Medical Climatology and Rehabilitative Treatment, Vladivostok, Russia
| | - Tatyana Vitkina
- Vladivostok Branch of Federal State Budgetary Science Institution "Far Eastern Scientific Center of Physiology and Pathology of Respiration" - Institute of Medical Climatology and Rehabilitative Treatment, Vladivostok, Russia
| | - Yulia Denisenko
- Vladivostok Branch of Federal State Budgetary Science Institution "Far Eastern Scientific Center of Physiology and Pathology of Respiration" - Institute of Medical Climatology and Rehabilitative Treatment, Vladivostok, Russia
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22
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Choi KYG, Wu BC, Lee AHY, Baquir B, Hancock REW. Utilizing Organoid and Air-Liquid Interface Models as a Screening Method in the Development of New Host Defense Peptides. Front Cell Infect Microbiol 2020; 10:228. [PMID: 32509598 PMCID: PMC7251080 DOI: 10.3389/fcimb.2020.00228] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 04/23/2020] [Indexed: 12/24/2022] Open
Abstract
Host defense peptides (HDPs), also known as antimicrobial peptides, are naturally occurring polypeptides (~12–50 residues) composed of cationic and hydrophobic amino acids that adopt an amphipathic conformation upon folding usually after contact with membranes. HDPs have a variety of biological activities including immunomodulatory, anti-inflammatory, anti-bacterial, and anti-biofilm functions. Although HDPs have the potential to address the global threat of antibiotic resistance and to treat immune and inflammatory disorders, they have yet to achieve this promise. Indeed, there are several challenges associated with bringing peptide-based drug candidates from the lab bench to clinical practice, including identifying appropriate indications, stability, toxicity, and cost. These challenges can be addressed in part by the development of innate defense regulator (IDR) peptides and peptidomimetics, which are synthetic derivatives of HDPs with similar or better efficacy, increased stability, and reduced toxicity and cost of the original HDP. However, one of the largest gaps between basic research and clinical application is the validity and translatability of conventional model systems, such as cell lines and animal models, for screening HDPs and their derivatives as potential drug therapies. Indeed, such translation has often relied on animal models, which have only limited validity. Here we discuss the recent development of human organoids for disease modeling and drug screening, assisted by the use of omics analyses. Organoids, developed from primary cells, cell lines, or human pluripotent stem cells, are three-dimensional, self-organizing structures that closely resemble their corresponding in vivo organs with regards to immune responses, tissue organization, and physiological properties; thus, organoids represent a reliable method for studying efficacy, formulation, toxicity and to some extent drug stability and pharmacodynamics. The use of patient-derived organoids enables the study of patient-specific efficacy, toxicogenomics and drug response predictions. We outline how organoids and omics data analysis can be leveraged to aid in the clinical translation of IDR peptides.
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Affiliation(s)
- Ka-Yee Grace Choi
- Department of Microbiology and Immunology, Centre for Microbial Diseases and Immunity Research, University of British Columbia, Vancouver, BC, Canada
| | - Bing Catherine Wu
- Department of Microbiology and Immunology, Centre for Microbial Diseases and Immunity Research, University of British Columbia, Vancouver, BC, Canada
| | - Amy Huei-Yi Lee
- Department of Microbiology and Immunology, Centre for Microbial Diseases and Immunity Research, University of British Columbia, Vancouver, BC, Canada.,Department of Molecular Biology and Biochemistry, Simon Fraser University, Burnaby, BC, Canada
| | - Beverlie Baquir
- Department of Microbiology and Immunology, Centre for Microbial Diseases and Immunity Research, University of British Columbia, Vancouver, BC, Canada
| | - Robert E W Hancock
- Department of Microbiology and Immunology, Centre for Microbial Diseases and Immunity Research, University of British Columbia, Vancouver, BC, Canada
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23
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van Riet S, van Schadewijk A, de Vos S, Vandeghinste N, Rottier RJ, Stolk J, Hiemstra PS, Khedoe P. Modulation of Airway Epithelial Innate Immunity and Wound Repair by M(GM-CSF) and M(M-CSF) Macrophages. J Innate Immun 2020; 12:410-421. [PMID: 32289801 DOI: 10.1159/000506833] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 02/26/2020] [Indexed: 12/25/2022] Open
Abstract
Airway epithelial cells and macrophages participate in inflammatory responses to external noxious stimuli, which can cause epithelial injury. Upon injury, epithelial cells and macrophages act in concert to ensure rapid restoration of epithelial integrity. The nature of the interactions between these cell types during epithelial repair is incompletely understood. We used an in vitro human coculture model of primary bronchial epithelial cells cultured at the air-liquid interface (ALI-PBEC) and polarized primary monocyte-derived macrophages. Using this coculture, we studied the contribution of macrophages to epithelial innate immunity, wound healing capacity, and epithelial exposure to whole cigarette smoke (WCS). Coculture of ALI-PBEC with lipopolysaccharide (LPS)-activated M(GM-CSF) macrophages increased the expression of DEFB4A, CXCL8, and IL6 at 24 h in the ALI-PBEC, whereas LPS-activated M(M-CSF) macrophages only increased epithelial IL6 expression. Furthermore, wound repair was accelerated by coculture with both activated M(GM-CSF) and M(M-CSF) macrophages, also following WCS exposure. Coculture of ALI-PBEC and M(GM-CSF) macrophages resulted in increased CAMP expression in M(GM-CSF) macrophages, which was absent in M(M-CSF) macrophages. CAMP encodes LL-37, an antimicrobial peptide with immune-modulating and repair-enhancing activities. In conclusion, dynamic crosstalk between ALI-PBEC and macrophages enhances epithelial innate immunity and wound repair, even upon concomitant cigarette smoke exposure.
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Affiliation(s)
- Sander van Riet
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands,
| | | | | | | | - Robbert J Rottier
- Department of Pediatric Surgery, Erasmus MC-Sophia Children's Hospital, Rotterdam, The Netherlands
| | - Jan Stolk
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - Pieter S Hiemstra
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - Padmini Khedoe
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
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24
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Burkes RM, Ceppe AS, Couper DJ, Comellas AP, Wells JM, Peters SP, Criner GJ, Kanner RE, Paine R, Christenson SA, Cooper CB, Barjaktarevic IZ, Krishnan JA, Labaki WW, Han MK, Curtis JL, Hansel NN, Wise RA, Drummond MB. Plasma Cathelicidin is Independently Associated with Reduced Lung Function in COPD: Analysis of the Subpopulations and Intermediate Outcome Measures in COPD Study Cohort. CHRONIC OBSTRUCTIVE PULMONARY DISEASES-JOURNAL OF THE COPD FOUNDATION 2020; 7:370-381. [PMID: 33108110 DOI: 10.15326/jcopdf.7.4.2020.0142] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Ratrionale The antimicrobial peptide cathelicidin, also known in humans as LL-37, is a defensin secreted by immune and airway epithelial cells. Deficiencies in this peptide may contribute to adverse pulmonary outcomes in chronic obstructive pulmonary disease (COPD). Objectives Using clinical and biological samples from the SubPopulations and InteRmediate Outcome Measures In COPD Study (SPIROMICS), we assessed the associations of plasma cathelicidin levels with cross-sectional and longitudinal COPD outcomes. Methods A total of 1609 SPIROMICS participants with COPD and available plasma samples were analyzed. Cathelicidin was modeled dichotomously (lowest quartile [< 50 ng/ml] versus highest 75% [≥ 50 ng/ml]) and continuously per 10 ng/ml. Fixed-effect multilevel regression analyses were used to assess associations between cathelicidin and cross-sectional as well as longitudinal lung function. The associations between cathelicidin and participant-reported retrospective and prospective COPD exacerbations were assessed via logistic regression. Measurements and Main Results Cathelicidin < 50 ng/ml (N=383) was associated with female sex, black race, and lower body mass index (BMI).At baseline,cathelicidin < 50 ng/ml was independently associated with 3.55% lower % predicted forced expiratory volume in 1 second (FEV1)(95% confidence interval [CI] -6.22% to -0.88% predicted; p=0.01), while every 10 ng/ml lower cathelicidin was independently associated with 0.65% lower % predicted FEV1 (95% CI -1.01% to -0.28% predicted; p< 0.001). No independent associations with longitudinal lung function decline or participant-reported COPD exacerbations were observed. Conclusions Reduced cathelicidin is associated with lower lung function at baseline. Plasma cathelicidin may potentially identify COPD patients at increased risk for more severe lung disease.
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Affiliation(s)
- Robert M Burkes
- Division of Pulmonary Diseases and Critical Care Medicine, University of North Carolina, Chapel Hill
| | - Agathe S Ceppe
- Marsico Lung Institute, University of North Carolina, Chapel Hill
| | - David J Couper
- Gillings School of Global Public Health, University of North Carolina, Chapel Hill
| | - Alejandro P Comellas
- Division of Pulmonary, Critical Care, and Occupational Medicine, Carver College of Medicine, University of Iowa, Iowa City
| | - J Michael Wells
- Division of Pulmonary, Allergy, and Critical Care Medicine, University of Alabama, Birmingham
| | - Stephen P Peters
- Section of Pulmonary, Critical Care, Allergy, and Immunologic Disease, Wake Forest University, Winston-Salem, North Carolina
| | - Gerard J Criner
- Division of Thoracic Medicine and Surgery, Temple University, Philadelphia, Pennsylvania
| | - Richard E Kanner
- Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, Department of Internal Medicine, School of Medicine, University of Utah, Salt Lake City
| | - Robert Paine
- Division of Respiratory, Critical Care and Occupational Pulmonary Medicine, Department of Internal Medicine, School of Medicine, University of Utah, Salt Lake City
| | - Stephanie A Christenson
- Division of Pulmonary Critical Care, Allergy, and Sleep Medicine, University of California, San Francisco
| | - Christopher B Cooper
- Division of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, University of California, Los Angeles
| | - Igor Z Barjaktarevic
- Division of Pulmonary and Critical Care Medicine, David Geffen School of Medicine, University of California, Los Angeles
| | - Jerry A Krishnan
- Division of Pulmonary, Critical Care, Sleep, and Allergy Medicine, University of Illinois, Chicago
| | - Wassim W Labaki
- Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor
| | - MeiLan K Han
- Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor
| | - Jeffrey L Curtis
- Division of Pulmonary and Critical Care Medicine, University of Michigan, Ann Arbor.,Medicine Service, VA Ann Arbor Healthcare System, Ann Arbor, Michigan
| | - Nadia N Hansel
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University Baltimore, Maryland
| | - Robert A Wise
- Division of Pulmonary and Critical Care Medicine, Johns Hopkins University Baltimore, Maryland
| | - M Bradley Drummond
- Division of Pulmonary Diseases and Critical Care Medicine, University of North Carolina, Chapel Hill.,Marsico Lung Institute, University of North Carolina, Chapel Hill
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25
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Tanner L, Single AB. Animal Models Reflecting Chronic Obstructive Pulmonary Disease and Related Respiratory Disorders: Translating Pre-Clinical Data into Clinical Relevance. J Innate Immun 2019; 12:203-225. [PMID: 31527372 PMCID: PMC7265725 DOI: 10.1159/000502489] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 07/25/2019] [Accepted: 07/25/2019] [Indexed: 12/17/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) affects the lives of an ever-growing number of people worldwide. The lack of understanding surrounding the pathophysiology of the disease and its progression has led to COPD becoming the third leading cause of death worldwide. COPD is incurable, with current treatments only addressing associated symptoms and sometimes slowing its progression, thus highlighting the need to develop novel treatments. However, this has been limited by the lack of experimental standardization within the respiratory disease research area. A lack of coherent animal models that accurately represent all aspects of COPD clinical presentation makes the translation of promising in vitrodata to human clinical trials exceptionally challenging. Here, we review current knowledge within the COPD research field, with a focus on current COPD animal models. Moreover, we include a set of advantages and disadvantages for the selection of pre-clinical models for the identification of novel COPD treatments.
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Affiliation(s)
- Lloyd Tanner
- Respiratory Medicine and Allergology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden,
| | - Andrew Bruce Single
- Respiratory Medicine and Allergology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
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26
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Mathyssen C, Serré J, Sacreas A, Everaerts S, Maes K, Verleden S, Verlinden L, Verstuyf A, Pilette C, Gayan-Ramirez G, Vanaudenaerde B, Janssens W. Vitamin D Modulates the Response of Bronchial Epithelial Cells Exposed to Cigarette Smoke Extract. Nutrients 2019; 11:E2138. [PMID: 31500220 PMCID: PMC6770037 DOI: 10.3390/nu11092138] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Revised: 08/27/2019] [Accepted: 09/03/2019] [Indexed: 12/22/2022] Open
Abstract
In chronic obstructive pulmonary disease (COPD), the bronchial epithelium is the first immune barrier that is triggered by cigarette smoke. Although vitamin D (vitD) has proven anti-inflammatory and antimicrobial effects in alveolar macrophages, little is known about the direct role of vitD on cigarette smoke-exposed bronchial epithelial cells. We examined the effects of vitD on a human bronchial epithelial cell line (16HBE) and on air-liquid culture of primary bronchial epithelial cells (PBEC) of COPD patients and controls exposed for 24 h to cigarette smoke extract (CSE). VitD decreased CSE-induced IL-8 secretion by 16HBE cells, but not by PBEC. VitD significantly increased the expression of the antimicrobial peptide cathelicidin in 16HBE and PBEC of both COPD subjects and controls. VitD did not affect epithelial to mesenchymal transition or epithelial MMP-9 expression and was not able to restore impaired wound healing by CSE in 16HBE cells. VitD increased the expression of its own catabolic enzyme CYP24A1 thereby maintaining its negative feedback. In conclusion, vitD supplementation may potentially reduce infectious exacerbations in COPD by the upregulation of cathelicidin in the bronchial epithelium.
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Affiliation(s)
| | - Jef Serré
- Lab of Respiratory Diseases, CHROMETA, KU Leuven, 3000 Leuven, Belgium.
| | - Annelore Sacreas
- Lab of Respiratory Diseases, CHROMETA, KU Leuven, 3000 Leuven, Belgium.
| | | | - Karen Maes
- Lab of Respiratory Diseases, CHROMETA, KU Leuven, 3000 Leuven, Belgium.
| | - Stijn Verleden
- Lab of Respiratory Diseases, CHROMETA, KU Leuven, 3000 Leuven, Belgium.
| | - Lieve Verlinden
- Clinical and Experimental Endocrinology, CHROMETA, KU Leuven, 3000 Leuven, Belgium.
| | - Annemieke Verstuyf
- Clinical and Experimental Endocrinology, CHROMETA, KU Leuven, 3000 Leuven, Belgium.
| | - Charles Pilette
- Institute of Experimental & Clinical Research-Pole of Pneumology, ENT and Dermatology, Université Catholique de Louvain (UCL), 1200 Brussels, Belgium.
| | | | | | - Wim Janssens
- Lab of Respiratory Diseases, CHROMETA, KU Leuven, 3000 Leuven, Belgium.
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27
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Antimicrobial Host Defence Peptides: Immunomodulatory Functions and Translational Prospects. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1117:149-171. [DOI: 10.1007/978-981-13-3588-4_10] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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28
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Schrumpf JA, Ninaber DK, van der Does AM, Hiemstra PS. TGF-β1 Impairs Vitamin D-Induced and Constitutive Airway Epithelial Host Defense Mechanisms. J Innate Immun 2019; 12:74-89. [PMID: 30970352 DOI: 10.1159/000497415] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 01/28/2019] [Indexed: 12/11/2022] Open
Abstract
Airway epithelium is an important site for local vitamin D (VD) metabolism; this can be negatively affected by inflammatory mediators. VD is an important regulator of respiratory host defense, for example, by increasing the expression of hCAP18/LL-37. TGF-β1 is increased in chronic obstructive pulmonary disease (COPD), and known to decrease the expression of constitutive host defense mediators such as secretory leukocyte protease inhibitor (SLPI) and polymeric immunoglobulin receptor (pIgR). VD has been shown to affect TGF-β1-signaling by inhibiting TGF-β1-induced epithelial-to-mesenchymal transition. However, interactions between VD and TGF-β1, relevant for the understanding host defense in COPD, are incompletely understood. Therefore, the aim of the present study was to investigate the combined effects of VD and TGF-β1 on airway epithelial cell host defense mechanisms. Exposure to TGF-β1 reduced both baseline and VD-induced expression of hCAP18/LL-37, partly by increasing the expression of the VD-degrading enzyme CYP24A1. TGF-β1 alone decreased the number of secretory club and goblet cells and reduced the expression of constitutive host defense mediators SLPI, s/lPLUNC and pIgR, effects that were not modulated by VD. These results suggest that TGF-β1 may decrease the respiratory host defense both directly by reducing the expression of host defense mediators, and indirectly by affecting VD-mediated effects such as expression of hCAP18/LL-37.
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Affiliation(s)
- Jasmijn A Schrumpf
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands,
| | - Dennis K Ninaber
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - Anne M van der Does
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - Pieter S Hiemstra
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
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29
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Higham A, Quinn AM, Cançado JED, Singh D. The pathology of small airways disease in COPD: historical aspects and future directions. Respir Res 2019; 20:49. [PMID: 30832670 PMCID: PMC6399904 DOI: 10.1186/s12931-019-1017-y] [Citation(s) in RCA: 126] [Impact Index Per Article: 25.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 02/25/2019] [Indexed: 12/16/2022] Open
Abstract
Small airways disease (SAD) is a cardinal feature of chronic obstructive pulmonary disease (COPD) first recognized in the nineteenth century. The diverse histopathological features associated with SAD underpin the heterogeneous nature of COPD. Our understanding of the key molecular mechanisms which drive the pathological changes are not complete. In this article we will provide a historical overview of key histopathological studies which have helped shape our understanding of SAD and discuss the hallmark features of airway remodelling, mucous plugging and inflammation. We focus on the relationship between SAD and emphysema, SAD in the early stages of COPD, and the mechanisms which cause SAD progression, including bacterial colonization and exacerbations. We discuss the need to specifically target SAD to attenuate the progression of COPD.
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Affiliation(s)
- Andrew Higham
- The University of Manchester Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK.
| | - Anne Marie Quinn
- Department of Histopathology, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK
| | | | - Dave Singh
- The University of Manchester Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, Wythenshawe Hospital, Manchester University NHS Foundation Trust, Manchester, UK.,Medicines Evaluation Unit, The Langley Building, Southmoor Road, Manchester, UK
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30
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Herwald H, Egesten A. Another Brick in the Wall. J Innate Immun 2019; 11:109-110. [PMID: 30808848 DOI: 10.1159/000498950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 02/11/2019] [Indexed: 11/19/2022] Open
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31
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Plasma cathelicidin and longitudinal lung function in current and former smokers. PLoS One 2019; 14:e0212628. [PMID: 30811465 PMCID: PMC6392327 DOI: 10.1371/journal.pone.0212628] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 02/06/2019] [Indexed: 12/30/2022] Open
Abstract
INTRODUCTION Cathelicidin (also known as LL-37 in humans) is an antimicrobial peptide secreted by epithelial and immune cells and regulated by vitamin D. The immunological roles of cathelicidin make it a putative biomarker to identify individuals at risk for reduced lung function. The objective of this study is to determine potential independent associations between low plasma cathelicidin and longitudinal lung function in current or former smokers without COPD. METHODS In a nested analysis of 308 participants from an observational cohort study, plasma cathelicidin and serum 25-hydroxy-vitamin D measurements were obtained at baseline, years three and five. The independent association between lowest quartile cathelicidin (<35 ng/ml) and forced-expiratory-volume-in-1-second (FEV1) at baseline, six and 18 months from each cathelicidin measurement was assessed with generalized estimating equations after adjusting for age, sex, race, smoking status and intensity. The long-term stability of cathelicidin and relationship with vitamin D was evaluated. RESULTS The cohort was 91% African-American, mean age 48.6 years, 32% female, and 81% current smokers. Participants with low cathelicidin were more likely to be female and have lower FEV1. Low cathelicidin was not independently associated with baseline FEV1. There was an independent association between low cathelicidin and reduced FEV1 at six months [-72 ml (95% CI, -140 to -8ml); p = 0.027] and 18 months [-103 ml (95% CI, -180 to -27 ml); p = 0.007]. Cathelicidin was stable over time and not correlated with vitamin D level. CONCLUSION In current and former smokers with preserved lung function, low cathelicidin is associated with sustained lung function reductions at six and 18 months, suggesting that cathelicidin may be an informative biomarker to predict persistent lung function disparities among at-risk individuals.
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32
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Bovard D, Sandoz A, Luettich K, Frentzel S, Iskandar A, Marescotti D, Trivedi K, Guedj E, Dutertre Q, Peitsch MC, Hoeng J. A lung/liver-on-a-chip platform for acute and chronic toxicity studies. LAB ON A CHIP 2018; 18:3814-3829. [PMID: 30460365 DOI: 10.1039/c8lc01029c] [Citation(s) in RCA: 105] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
The merging of three-dimensional in vitro models with multi-organ-on-a-chip (MOC) technology has taken in vitro assessment of chemicals to an unprecedented level. By connecting multiple organotypic models, MOC allows for the crosstalk between different organs to be studied to evaluate a compound's safety and efficacy better than with single cultures. The technology could also improve the toxicological assessment of aerosols that have been implicated in the development of chronic obstructive pulmonary disease, asthma, or lung cancer. Here we report the development of a lung/liver-on-a-chip, connecting in a single circuit, normal human bronchial epithelial (NHBE) cells cultured at the air-liquid interface (ALI), and HepaRG™ liver spheroids. Maintenance of the individual tissues in the chip increased NHBE ALI tissue transepithelial electrical resistance and decreased HepaRG™ spheroid adenosine triphosphate content as well as cytochrome P450 (CYP) 1A1/1B1 inducibility. CYP inducibility was partly restored when HepaRG™ spheroids were cocultured with NHBE ALI tissues. Both tissues remained viable and functional for 28 days when cocultured in the chip. The capacity of the HepaRG™ spheroids to metabolize compounds present in the medium and to modulate their toxicity was proven using aflatoxin B1 (AFB1). AFB1 toxicity in NHBE ALI tissues decreased when HepaRG™ spheroids were present in the same chip circuit, proving that the HepaRG™-mediated detoxification is protecting/decreasing from AFB1-mediated cytotoxicity. The lung/liver-on-a-chip platform presented here offers new opportunities to study the toxicity of inhaled aerosols or to demonstrate the safety and efficacy of new drug candidates targeting the human lung.
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Affiliation(s)
- David Bovard
- PMI R&D, Philip Morris Products S.A., Quai Jeanrenaud 5, CH-2000 Neuchâtel, Switzerland
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33
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Su YC, Jalalvand F, Thegerström J, Riesbeck K. The Interplay Between Immune Response and Bacterial Infection in COPD: Focus Upon Non-typeable Haemophilus influenzae. Front Immunol 2018; 9:2530. [PMID: 30455693 PMCID: PMC6230626 DOI: 10.3389/fimmu.2018.02530] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Accepted: 10/15/2018] [Indexed: 12/12/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a debilitating respiratory disease and one of the leading causes of morbidity and mortality worldwide. It is characterized by persistent respiratory symptoms and airflow limitation due to abnormalities in the lower airway following consistent exposure to noxious particles or gases. Acute exacerbations of COPD (AECOPD) are characterized by increased cough, purulent sputum production, and dyspnea. The AECOPD is mostly associated with infection caused by common cold viruses or bacteria, or co-infections. Chronic and persistent infection by non-typeable Haemophilus influenzae (NTHi), a Gram-negative coccobacillus, contributes to almost half of the infective exacerbations caused by bacteria. This is supported by reports that NTHi is commonly isolated in the sputum from COPD patients during exacerbations. Persistent colonization of NTHi in the lower airway requires a plethora of phenotypic adaptation and virulent mechanisms that are developed over time to cope with changing environmental pressures in the airway such as host immuno-inflammatory response. Chronic inhalation of noxious irritants in COPD causes a changed balance in the lung microbiome, abnormal inflammatory response, and an impaired airway immune system. These conditions significantly provide an opportunistic platform for NTHi colonization and infection resulting in a "vicious circle." Episodes of large inflammation as the consequences of multiple interactions between airway immune cells and NTHi, accumulatively contribute to COPD exacerbations and may result in worsening of the clinical status. In this review, we discuss in detail the interplay and crosstalk between airway immune residents and NTHi, and their effect in AECOPD for better understanding of NTHi pathogenesis in COPD patients.
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Affiliation(s)
- Yu-Ching Su
- Clinical Microbiology, Department of Translational Medicine, Faculty of Medicine, Lund University, Malmö, Sweden
| | - Farshid Jalalvand
- Department of Biology, Centre for Bacterial Stress Response and Persistence, University of Copenhagen, Copenhagen, Denmark
| | - John Thegerström
- Clinical Microbiology, Department of Translational Medicine, Faculty of Medicine, Lund University, Malmö, Sweden
| | - Kristian Riesbeck
- Clinical Microbiology, Department of Translational Medicine, Faculty of Medicine, Lund University, Malmö, Sweden
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34
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Amatngalim GD, Hiemstra PS. Airway Epithelial Cell Function and Respiratory Host Defense in Chronic Obstructive Pulmonary Disease. Chin Med J (Engl) 2018; 131:1099-1107. [PMID: 29692382 PMCID: PMC5937320 DOI: 10.4103/0366-6999.230743] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Gimano D Amatngalim
- Department of Pulmonology, Leiden University Medical Center, Leiden; Department of Pediatrics, Wilhelmina Children's Hospital, Regenerative Medicine Center Utrecht, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Pieter S Hiemstra
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
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35
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Amatngalim GD, Vieira RP, Meiners S, Bartel S. Novel insights into the effects of cigarette smoke on the airway epithelial surface-lessons learned at the European Respiratory Society International Congress 2018 in Paris. J Thorac Dis 2018; 10:S2977-S2982. [PMID: 30310684 PMCID: PMC6174130 DOI: 10.21037/jtd.2018.08.17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 07/12/2018] [Indexed: 01/02/2023]
Affiliation(s)
- Gimano D. Amatngalim
- Department of Pediatric Pulmonology, Wilhelmina Children’s Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
- Regenerative Medicine Center, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Rodolfo Paula Vieira
- Post-graduation Program in Bioengineering, Universidade Brasil, Sao Paulo, Brazil
- Post-graduation Program in Sciences of Human Movement and Rehabilitation, Federal University of Sao Paulo, Santos, Brazil
- Brazilian Institute of Teaching and Research in Pulmonary and Exercise Immunology, Sao Jose dos Campos, Brazil
| | - Silke Meiners
- Comprehensive Pneumology Center, Institute for Lung Biology and Disease (ILBD), Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Sabine Bartel
- Early Life Origins of Chronic Lung Disease, Leibniz Lung Center Borstel, Member of the German Center for Lung Research (DZL), Borstel, Germany
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van der Does AM, Amatngalim GD, Keijser B, Hiemstra PS, Villenave R. Contribution of Host Defence Proteins and Peptides to Host-Microbiota Interactions in Chronic Inflammatory Lung Diseases. Vaccines (Basel) 2018; 6:vaccines6030049. [PMID: 30060554 PMCID: PMC6161034 DOI: 10.3390/vaccines6030049] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 07/23/2018] [Accepted: 07/25/2018] [Indexed: 12/11/2022] Open
Abstract
The respiratory tract harbours a variety of microorganisms, collectively called the respiratory microbiota. Over the past few years, alterations in respiratory and gut microbiota composition have been associated with chronic inflammatory diseases of the lungs. How these changes influence disease development and progression is an active field of investigation. Identifying and understanding host-microbiota interactions and factors contributing to these interactions could promote the development of novel therapeutic strategies aimed at restoring host-microbiota homeostasis. In this review, we discuss recent literature on host-microbiota interactions in the respiratory tract, with a specific focus on the influence of endogenous host defence peptides and proteins (HDPs) on the composition of microbiota populations in vivo and explore possible HDPs-related therapeutic approaches targeting microbiota dysbiosis in chronic inflammatory lung diseases.
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Affiliation(s)
- Anne M van der Does
- Department of Pulmonology, Leiden University Medical Center, Leiden 2300 RC, The Netherlands.
| | - Gimano D Amatngalim
- Department of Pediatric Pulmonology, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht 3508 AB, The Netherlands.
- Regenerative Medicine Center, University Medical Center Utrecht, Utrecht 3508 AB, The Netherlands.
| | - Bart Keijser
- Research Group Microbiology and Systems Biology, TNO (The Netherlands Organization for Applied Scientific Research), Zeist 3704 HE, The Netherlands.
- Department of Preventive Dentistry, Academic Center for Dentistry Amsterdam (ACTA), University of Amsterdam, Amsterdam 1008 AA, The Netherlands.
| | - Pieter S Hiemstra
- Department of Pulmonology, Leiden University Medical Center, Leiden 2300 RC, The Netherlands.
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Amatngalim GD, Schrumpf JA, Dishchekenian F, Mertens TC, Ninaber DK, van der Linden AC, Pilette C, Taube C, Hiemstra PS, van der Does AM. Aberrant epithelial differentiation by cigarette smoke dysregulates respiratory host defence. Eur Respir J 2018; 51:13993003.01009-2017. [DOI: 10.1183/13993003.01009-2017] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 02/28/2018] [Indexed: 12/21/2022]
Abstract
It is currently unknown how cigarette smoke-induced airway remodelling affects highly expressed respiratory epithelial defence proteins and thereby mucosal host defence.Localisation of a selected set of highly expressed respiratory epithelial host defence proteins was assessed in well-differentiated primary bronchial epithelial cell (PBEC) cultures. Next, PBEC were cultured at the air–liquid interface, and during differentiation for 2–3 weeks exposed daily to whole cigarette smoke. Gene expression, protein levels and epithelial cell markers were subsequently assessed. In addition, functional activities and persistence of the cigarette smoke-induced effects upon cessation were determined.Expression of the polymeric immunoglobulin receptor, secretory leukocyte protease inhibitor and long and short PLUNC (palate, lung and nasal epithelium clone protein) was restricted to luminal cells and exposure of differentiating PBECs to cigarette smoke resulted in a selective reduction of the expression of these luminal cell-restricted respiratory host defence proteins compared to controls. This reduced expression was a consequence of cigarette smoke-impaired end-stage differentiation of epithelial cells, and accompanied by a significant decreased transepithelial transport of IgA and bacterial killing.These findings shed new light on the importance of airway epithelial cell differentiation in respiratory host defence and could provide an additional explanation for the increased susceptibility of smokers and patients with chronic obstructive pulmonary disease to respiratory infections.
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38
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Full Complement. J Innate Immun 2018; 10:83-84. [PMID: 29510384 DOI: 10.1159/000487341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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39
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Aghapour M, Raee P, Moghaddam SJ, Hiemstra PS, Heijink IH. Airway Epithelial Barrier Dysfunction in Chronic Obstructive Pulmonary Disease: Role of Cigarette Smoke Exposure. Am J Respir Cell Mol Biol 2018; 58:157-169. [DOI: 10.1165/rcmb.2017-0200tr] [Citation(s) in RCA: 142] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Affiliation(s)
| | - Pourya Raee
- Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
| | - Seyed Javad Moghaddam
- Department of Pulmonary Medicine, Division of Internal Medicine, the University of Texas M. D. Anderson Cancer Center, Houston, Texas
| | - Pieter S. Hiemstra
- Department of Pulmonology, Leiden University Medical Center, Leiden, the Netherlands; and
| | - Irene H. Heijink
- Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
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40
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Zscheppang K, Berg J, Hedtrich S, Verheyen L, Wagner DE, Suttorp N, Hippenstiel S, Hocke AC. Human Pulmonary 3D Models For Translational Research. Biotechnol J 2018; 13:1700341. [PMID: 28865134 PMCID: PMC7161817 DOI: 10.1002/biot.201700341] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 08/23/2017] [Indexed: 12/13/2022]
Abstract
Lung diseases belong to the major causes of death worldwide. Recent innovative methodological developments now allow more and more for the use of primary human tissue and cells to model such diseases. In this regard, the review covers bronchial air-liquid interface cultures, precision cut lung slices as well as ex vivo cultures of explanted peripheral lung tissue and de-/re-cellularization models. Diseases such as asthma or infections are discussed and an outlook on further areas for development is given. Overall, the progress in ex vivo modeling by using primary human material could make translational research activities more efficient by simultaneously fostering the mechanistic understanding of human lung diseases while reducing animal usage in biomedical research.
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Affiliation(s)
- Katja Zscheppang
- Dept. of Internal Medicine/Infectious and Respiratory DiseasesCharité − Universitätsmedizin BerlinCharitèplatz 1Berlin 10117Germany
| | - Johanna Berg
- Department of BiotechnologyTechnical University of BerlinGustav‐Meyer‐Allee 25Berlin 13335Germany
| | - Sarah Hedtrich
- Institute for PharmacyPharmacology and ToxicologyFreie Universität BerlinBerlinGermany
| | - Leonie Verheyen
- Institute for PharmacyPharmacology and ToxicologyFreie Universität BerlinBerlinGermany
| | - Darcy E. Wagner
- Helmholtz Zentrum Munich, Lung Repair and Regeneration Unit, Comprehensive Pneumology CenterMember of the German Center for Lung ResearchMunichGermany
| | - Norbert Suttorp
- Dept. of Internal Medicine/Infectious and Respiratory DiseasesCharité − Universitätsmedizin BerlinCharitèplatz 1Berlin 10117Germany
| | - Stefan Hippenstiel
- Dept. of Internal Medicine/Infectious and Respiratory DiseasesCharité − Universitätsmedizin BerlinCharitèplatz 1Berlin 10117Germany
| | - Andreas C. Hocke
- Dept. of Internal Medicine/Infectious and Respiratory DiseasesCharité − Universitätsmedizin BerlinCharitèplatz 1Berlin 10117Germany
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Human lung epithelial cell cultures for analysis of inhaled toxicants: Lessons learned and future directions. Toxicol In Vitro 2017; 47:137-146. [PMID: 29155131 DOI: 10.1016/j.tiv.2017.11.005] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 09/28/2017] [Accepted: 11/14/2017] [Indexed: 01/01/2023]
Abstract
The epithelium that covers the conducting airways and alveoli is a primary target for inhaled toxic substances, and therefore a focus in inhalation toxicology. The increasing concern about the use of animal models has stimulated the development of in vitro cell culture models for analysis of the biological effects of inhaled toxicants. However, the validity of the current in vitro models and their acceptance by regulatory authorities as an alternative to animal models is a reason for concern, and requires a critical review. In this review, focused on human lung epithelial cell cultures as a model for inhalation toxicology, we discuss the choice of cells for these models, the cell culture system used, the method of exposure as well as the various read-outs to assess the cellular response. We argue that rapid developments in the 3D culture of primary epithelial cells, the use of induced pluripotent stem cells for generation of lung epithelial cells and the development of organ-on-a-chip technology are among the important developments that will allow significant advances in this field. Furthermore, we discuss the various routes of application of inhaled toxicants by air-liquid interface models as well as the vast array of read-outs that may provide essential information. We conclude that close collaboration between researchers from various disciplines is essential for development of valid methods that are suitable for replacement of animal studies for inhalation toxicology.
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Mertens TCJ, Karmouty-Quintana H, Taube C, Hiemstra PS. Use of airway epithelial cell culture to unravel the pathogenesis and study treatment in obstructive airway diseases. Pulm Pharmacol Ther 2017; 45:101-113. [PMID: 28502841 DOI: 10.1016/j.pupt.2017.05.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Revised: 04/19/2017] [Accepted: 05/10/2017] [Indexed: 12/12/2022]
Abstract
Asthma and chronic obstructive pulmonary disease (COPD) are considered as two distinct obstructive diseases. Both chronic diseases share a component of airway epithelial dysfunction. The airway epithelium is localized to deal with inhaled substances, and functions as a barrier preventing penetration of such substances into the body. In addition, the epithelium is involved in the regulation of both innate and adaptive immune responses following inhalation of particles, allergens and pathogens. Through triggering and inducing immune responses, airway epithelial cells contribute to the pathogenesis of both asthma and COPD. Various in vitro research models have been described to study airway epithelial cell dysfunction in asthma and COPD. However, various considerations and cautions have to be taken into account when designing such in vitro experiments. Epithelial features of asthma and COPD can be modelled by using a variety of disease-related invoking substances either alone or in combination, and by the use of primary cells isolated from patients. Differentiation is a hallmark of airway epithelial cells, and therefore models should include the ability of cells to differentiate, as can be achieved in air-liquid interface models. More recently developed in vitro models, including precision cut lung slices, lung-on-a-chip, organoids and human induced pluripotent stem cells derived cultures, provide novel state-of-the-art alternatives to the conventional in vitro models. Furthermore, advanced models in which cells are exposed to respiratory pathogens, aerosolized medications and inhaled toxic substances such as cigarette smoke and air pollution are increasingly used to model e.g. acute exacerbations. These exposure models are relevant to study how epithelial features of asthma and COPD are affected and provide a useful tool to study the effect of drugs used in treatment of asthma and COPD. These new developments are expected to contribute to a better understanding of the complex gene-environment interactions that contribute to development and progression of asthma and COPD.
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Affiliation(s)
- Tinne C J Mertens
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands; Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center at Houston, Houston, TX, USA.
| | - Harry Karmouty-Quintana
- Department of Biochemistry and Molecular Biology, The University of Texas Health Science Center at Houston, Houston, TX, USA
| | - Christian Taube
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
| | - Pieter S Hiemstra
- Department of Pulmonology, Leiden University Medical Center, Leiden, The Netherlands
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