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Choi HG, Kwon MJ, Kim JH, Kim SY, Kim JH, Park JY, Hwang YI, Jang SH. Association between asthma and cardiovascular diseases: A longitudinal follow-up study using a national health screening cohort. World Allergy Organ J 2024; 17:100907. [PMID: 38873616 PMCID: PMC11170141 DOI: 10.1016/j.waojou.2024.100907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 03/14/2024] [Accepted: 04/16/2024] [Indexed: 06/15/2024] Open
Abstract
Background Asthma has been suggested to be a risk factor for cardiovascular diseases (CVDs), although the evidence supporting this relationship is inconclusive. This study aimed to explore the long-term associations between asthma and asthma exacerbations with the occurrence of cardiovascular diseases (CVDs) such as ischemic heart disease (IHD), heart failure (HF), and cerebral stroke, utilizing data from a nationwide cohort. Materials and methods This study utilized data from the Korean National Health Insurance Service-Health Screening Cohort database (2002-2015), including information on 111,316 asthma patients and an equal number of 1:1 matched control participants. A propensity score overlap-weighted Cox proportional hazards regression model was used to analyze the overlap-weighted hazard ratios (HRs) of asthma and exacerbated asthma for cardiovascular diseases (CVDs) within this cohort. Results During the follow-up period, the incidence rate (IR) of IHD per 1000 person-years (PYs) was 7.82 in patients with asthma and 5.79 in controls. The IR of HF was 2.53 in asthmatic patients and 1.36 in controls. After adjustment for covariates, asthmatic patients exhibited 1.27-fold and 1.56-fold higher HRs for IHD (95% confidence interval (CI) = 1.23-1.37, P < 0.001) and HF (95% CI = 1.36-1.63, P < 0.001) than the controls, respectively. In addition, there was an increased HR for IHD and HF in the asthma exacerbation group compared with the nonexacerbated asthma group (adjusted HR, 1.29, 95% CI = 1.24-1.34, P < 0.001 for IHD and aHR 1.68, 95% CI = 1.58-1.79, P < 0.001 for HF). However, the occurrence of stroke was decreased in asthmatic patients compared with controls (aHR = 0.96, 95% CI = 0.93-0.99, P = 0.008). Conclusions Adults with asthma are more likely to develop CVDs. Additionally, severe asthma exacerbations are significantly associated with an increased occurrence of CVDs.
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Affiliation(s)
- Hyo Geun Choi
- Suseo Seoul E.N.T. Clinic and MD Analytics, Seoul, South Korea
| | - Mi Jung Kwon
- Department of Pathology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, South Korea
| | - Ji Hee Kim
- Department of Neurosurgery, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, South Korea
| | - So Young Kim
- Department of Otorhinolaryngology-Head & Neck Surgery, CHA Bundang Medical Center, CHA University, Seongnam, South Korea
| | - Joo-Hee Kim
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, South Korea
| | - Ji Young Park
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, South Korea
| | - Yong Il Hwang
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, South Korea
| | - Seung Hun Jang
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, South Korea
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2
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Heidari Z, Naeimzadeh Y, Fallahi J, Savardashtaki A, Razban V, Khajeh S. The Role of Tissue Factor In Signaling Pathways of Pathological Conditions and Angiogenesis. Curr Mol Med 2024; 24:1135-1151. [PMID: 37817529 DOI: 10.2174/0115665240258746230919165935] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/10/2023] [Accepted: 07/27/2023] [Indexed: 10/12/2023]
Abstract
Tissue factor (TF) is an integral transmembrane protein associated with the extrinsic coagulation pathway. TF gene expression is regulated in response to inflammatory cytokines, bacterial lipopolysaccharides, and mechanical injuries. TF activity may be affected by phosphorylation of its cytoplasmic domain and alternative splicing. TF acts as the primary initiator of physiological hemostasis, which prevents local bleeding at the injury site. However, aberrant expression of TF, accompanied by the severity of diseases and infections under various pathological conditions, triggers multiple signaling pathways that support thrombosis, angiogenesis, inflammation, and metastasis. Protease-activated receptors (PARs) are central in the downstream signaling pathways of TF. In this study, we have reviewed the TF signaling pathways in different pathological conditions, such as wound injury, asthma, cardiovascular diseases (CVDs), viral infections, cancer and pathological angiogenesis. Angiogenic activities of TF are critical in the repair of wound injuries and aggressive behavior of tumors, which are mainly performed by the actions of vascular endothelial growth factor (VEGF) and hypoxia-inducible factor-1 (HIF1-α). Pro-inflammatory effects of TF have been reported in asthma, CVDs and viral infections, including COVID-19, which result in tissue hypertrophy, inflammation, and thrombosis. TF-FVII induces angiogenesis via clotting-dependent and -independent mechanisms. Clottingdependent angiogenesis is induced via the generation of thrombin and cross-linked fibrin network, which facilitate vessel infiltration and also act as a reservoir for endothelial cells (ECs) growth factors. Expression of TF in tumor cells and ECs triggers clotting-independent angiogenesis through induction of VEGF, urokinase-type plasminogen activator (uPAR), early growth response 1 (EGR1), IL8, and cysteine-rich angiogenic inducer 61 (Cyr61).
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Affiliation(s)
- Zahra Heidari
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Yasaman Naeimzadeh
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Jafar Fallahi
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amir Savardashtaki
- Department of Medical Biotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
- Infertility Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Vahid Razban
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Sahar Khajeh
- Bone and Joint Diseases Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
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3
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Mackman N, Hisada Y, Park JA. Western blot and immunohistochemical analysis of mouse tissue factor. Res Pract Thromb Haemost 2023; 7:102249. [PMID: 38193046 PMCID: PMC10772879 DOI: 10.1016/j.rpth.2023.102249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Revised: 10/18/2023] [Accepted: 10/19/2023] [Indexed: 01/10/2024] Open
Affiliation(s)
- Nigel Mackman
- Department of Medicine, Division of Hematology, UNC Blood Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Yohei Hisada
- Department of Medicine, Division of Hematology, UNC Blood Research Center, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Jin-Ah Park
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, Massachusetts, USA
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4
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Dy ABC, Girkin J, Marrocco A, Collison A, Mwase C, O'Sullivan MJ, Phung TKN, Mattes J, Koziol-White C, Gern JE, Bochkov YA, Bartlett NW, Park JA. Rhinovirus infection induces secretion of endothelin-1 from airway epithelial cells in both in vitro and in vivo models. Respir Res 2023; 24:205. [PMID: 37598152 PMCID: PMC10440034 DOI: 10.1186/s12931-023-02510-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 08/11/2023] [Indexed: 08/21/2023] Open
Abstract
BACKGROUND Rhinovirus (RV) infection of airway epithelial cells triggers asthma exacerbations, during which airway smooth muscle (ASM) excessively contracts. Due to ASM contraction, airway epithelial cells become mechanically compressed. We previously reported that compressed human bronchial epithelial (HBE) cells are a source of endothelin-1 (ET-1) that causes ASM contraction. Here, we hypothesized that epithelial sensing of RV by TLR3 and epithelial compression induce ET-1 secretion through a TGF-β receptor (TGFβR)-dependent mechanism. METHODS To test this, we used primary HBE cells well-differentiated in air-liquid interface culture and two mouse models (ovalbumin and house dust mite) of allergic airway disease (AAD). HBE cells were infected with RV-A16, treated with a TLR3 agonist (poly(I:C)), or exposed to compression. Thereafter, EDN1 (ET-1 protein-encoding gene) mRNA expression and secreted ET-1 protein were measured. We examined the role of TGFβR in ET-1 secretion using either a pharmacologic inhibitor of TGFβR or recombinant TGF-β1 protein. In the AAD mouse models, allergen-sensitized and allergen-challenged mice were subsequently infected with RV. We then measured ET-1 in bronchoalveolar lavage fluid (BALF) and airway hyperresponsiveness (AHR) following methacholine challenge. RESULTS Our data reveal that RV infection induced EDN1 expression and ET-1 secretion in HBE cells, potentially mediated by TLR3. TGFβR activation was partially required for ET-1 secretion, which was induced by RV, poly(I:C), or compression. TGFβR activation alone was sufficient to increase ET-1 secretion. In AAD mouse models, RV induced ET-1 secretion in BALF, which positively correlated with AHR. CONCLUSIONS Our data provide evidence that RV infection increased epithelial-cell ET-1 secretion through a TGFβR-dependent mechanism, which contributes to bronchoconstriction during RV-induced asthma exacerbations.
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Affiliation(s)
- Alane Blythe C Dy
- Program in Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Ave, Boston, MA, SPH1-315, USA
| | - Jason Girkin
- College of Health, Medicine and Wellbeing, University of Newcastle and Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Antonella Marrocco
- Program in Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Ave, Boston, MA, SPH1-315, USA
| | - Adam Collison
- College of Health, Medicine and Wellbeing, University of Newcastle and Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Chimwemwe Mwase
- Program in Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Ave, Boston, MA, SPH1-315, USA
| | - Michael J O'Sullivan
- Program in Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Ave, Boston, MA, SPH1-315, USA
| | - Thien-Khoi N Phung
- Program in Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Ave, Boston, MA, SPH1-315, USA
| | - Joerg Mattes
- College of Health, Medicine and Wellbeing, University of Newcastle and Hunter Medical Research Institute, New Lambton Heights, Australia
| | | | - James E Gern
- Department of Pediatrics, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - Yury A Bochkov
- Department of Pediatrics, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI, USA
| | - Nathan W Bartlett
- College of Health, Medicine and Wellbeing, University of Newcastle and Hunter Medical Research Institute, New Lambton Heights, Australia
| | - Jin-Ah Park
- Program in Molecular and Integrative Physiological Sciences, Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Ave, Boston, MA, SPH1-315, USA.
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5
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Veerati PC, Reid AT, Nichol KS, Wark PAB, Knight DA, Bartlett NW, Grainge CL. Mechanical forces suppress antiviral innate immune responses from asthmatic airway epithelial cells following rhinovirus infection. Am J Physiol Lung Cell Mol Physiol 2023; 325:L206-L214. [PMID: 37280545 PMCID: PMC10396277 DOI: 10.1152/ajplung.00074.2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 04/12/2023] [Accepted: 05/25/2023] [Indexed: 06/08/2023] Open
Abstract
Bronchoconstriction is the main physiological event in asthma, which leads to worsened clinical symptoms and generates mechanical stress within the airways. Virus infection is the primary cause of exacerbations in people with asthma, however, the impact that bronchoconstriction itself on host antiviral responses and viral replication is currently not well understood. Here we demonstrate how mechanical forces generated during bronchoconstriction may suppress antiviral responses at the airway epithelium without any difference in viral replication. Primary bronchial epithelial cells from donors with asthma were differentiated at the air-liquid interface. Differentiated cells were apically compressed (30 cmH2O) for 10 min every hour for 4 days to mimic bronchoconstriction. Two asthma disease models were developed with the application of compression, either before ("poor asthma control model," n = 7) or following ("exacerbation model," n = 4) rhinovirus (RV) infection. Samples were collected at 0, 24, 48, 72, and 96 h postinfection (hpi). Viral RNA, interferon (IFN)-β, IFN-λ, and host defense antiviral peptide gene expressions were measured along with IFN-β, IFN-λ, TGF-β2, interleukin-6 (IL-6), and IL-8 protein expression. Apical compression significantly suppressed RV-induced IFN-β protein from 48 hpi and IFN-λ from 72 hpi in the poor asthma control model. There was a nonsignificant reduction of both IFN-β and IFN-λ proteins from 48 hpi in the exacerbation model. Despite reductions in antiviral proteins, there was no significant change in viral replication in either model. Compressive stress mimicking bronchoconstriction inhibits antiviral innate immune responses from asthmatic airway epithelial cells when applied before RV infection.NEW & NOTEWORTHY Bronchoconstriction is the main physiological event in asthma, which leads to worsened clinical symptoms and generates mechanical stress within the airways. Virus infection is the primary cause of exacerbations in people with asthma, however, the impact of bronchoconstriction on host antiviral responses and viral replication is unknown. We developed two disease models, in vitro, and found suppressed IFN response from cells following the application of compression and RV-A1 infection. This explains why people with asthma have deficient IFN response.
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Affiliation(s)
- Punnam Chander Veerati
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
- Asthma and Breathing Research Program, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
| | - Andrew T Reid
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
- Asthma and Breathing Research Program, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
| | - Kristy S Nichol
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
- Immune Health Program, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
| | - Peter A B Wark
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
- Immune Health Program, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
- Department of Respiratory and Sleep Medicine, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
| | - Darryl A Knight
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, Australia
- Department of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, British Columbia, Canada
- Research and Academic Affairs, Providence Health Care Research Institute, Vancouver, British Columbia, Canada
| | - Nathan W Bartlett
- Immune Health Program, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, New South Wales, Australia
| | - Christopher L Grainge
- School of Medicine and Public Health, University of Newcastle, Callaghan, New South Wales, Australia
- Asthma and Breathing Research Program, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, New South Wales, Australia
- Department of Respiratory and Sleep Medicine, John Hunter Hospital, New Lambton Heights, New South Wales, Australia
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6
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Thompson W, Papoutsakis ET. The role of biomechanical stress in extracellular vesicle formation, composition and activity. Biotechnol Adv 2023; 66:108158. [PMID: 37105240 DOI: 10.1016/j.biotechadv.2023.108158] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 04/29/2023]
Abstract
Extracellular vesicles (EVs) are cornerstones of intercellular communication with exciting fundamental, clinical, and more broadly biotechnological applications. However, variability in EV composition, which results from the culture conditions used to generate the EVs, poses significant fundamental and applied challenges and a hurdle for scalable bioprocessing. Thus, an understanding of the relationship between EV production (and for clinical applications, manufacturing) and EV composition is increasingly recognized as important and necessary. While chemical stimulation and culture conditions such as cell density are known to influence EV biology, the impact of biomechanical forces on the generation, properties, and biological activity of EVs remains poorly understood. Given the omnipresence of these forces in EV preparation and in biomanufacturing, expanding the understanding of their impact on EV composition-and thus, activity-is vital. Although several publications have examined EV preparation and bioprocessing and briefly discussed biomechanical stresses as variables of interest, this review represents the first comprehensive evaluation of the impact of such stresses on EV production, composition and biological activity. We review how EV biogenesis, cargo, efficacy, and uptake are uniquely affected by various types, magnitudes, and durations of biomechanical forces, identifying trends that emerge both generically and for individual cell types. We also describe implications for scalable bioprocessing, evaluating processes inherent in common EV production and isolation methods, and propose a path forward for rigorous EV quality control.
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Affiliation(s)
- Will Thompson
- Department of Chemical and Biomolecular Engineering, University of Delaware, 590 Avenue 1743, Newark, DE 19713, USA
| | - Eleftherios Terry Papoutsakis
- Department of Chemical and Biomolecular Engineering, University of Delaware, 590 Avenue 1743, Newark, DE 19713, USA.
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7
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Phung TKN, Mitchel JA, O'Sullivan MJ, Park JA. Quantification of basal stem cell elongation and stress fiber accumulation in the pseudostratified airway epithelium during the unjamming transition. Biol Open 2023; 12:bio059727. [PMID: 37014330 PMCID: PMC10151827 DOI: 10.1242/bio.059727] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 03/16/2023] [Indexed: 04/05/2023] Open
Abstract
Under homeostatic conditions, epithelial cells remain non-migratory. However, during embryonic development and pathological conditions, they become migratory. The mechanism underlying the transition of the epithelial layer between non-migratory and migratory phases is a fundamental question in biology. Using well-differentiated primary human bronchial epithelial cells that form a pseudostratified epithelium, we have previously identified that a confluent epithelial layer can transition from a non-migratory to migratory phase through an unjamming transition (UJT). We previously defined collective cellular migration and apical cell elongation as hallmarks of UJT. However, other cell-type-specific changes have not been previously studied in the pseudostratified airway epithelium, which consists of multiple cell types. Here, we focused on the quantifying morphological changes in basal stem cells during the UJT. Our data demonstrate that during the UJT, airway basal stem cells elongated and enlarged, and their stress fibers elongated and aligned. These morphological changes observed in basal stem cells correlated to the previously defined hallmarks of the UJT. Moreover, basal cell and stress fiber elongation were observed prior to apical cell elongation. Together, these morphological changes indicate that basal stem cells in pseudostratified airway epithelium are actively remodeling, presumably through accumulation of stress fibers during the UJT.
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Affiliation(s)
- Thien-Khoi N. Phung
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Jennifer A. Mitchel
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
- Department of Biology, Wesleyan University, Middletown, CT 06459, USA
| | - Michael J. O'Sullivan
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Jin-Ah Park
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
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8
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Dysregulated haemostasis in thrombo-inflammatory disease. Clin Sci (Lond) 2022; 136:1809-1829. [PMID: 36524413 PMCID: PMC9760580 DOI: 10.1042/cs20220208] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 11/17/2022] [Accepted: 11/25/2022] [Indexed: 12/23/2022]
Abstract
Inflammatory disease is often associated with an increased incidence of venous thromboembolism in affected patients, although in most instances, the mechanistic basis for this increased thrombogenicity remains poorly understood. Acute infection, as exemplified by sepsis, malaria and most recently, COVID-19, drives 'immunothrombosis', where the immune defence response to capture and neutralise invading pathogens causes concurrent activation of deleterious prothrombotic cellular and biological responses. Moreover, dysregulated innate and adaptive immune responses in patients with chronic inflammatory conditions, such as inflammatory bowel disease, allergies, and neurodegenerative disorders, are now recognised to occur in parallel with activation of coagulation. In this review, we describe the detailed cellular and biochemical mechanisms that cause inflammation-driven haemostatic dysregulation, including aberrant contact pathway activation, increased tissue factor activity and release, innate immune cell activation and programmed cell death, and T cell-mediated changes in thrombus resolution. In addition, we consider how lifestyle changes increasingly associated with modern life, such as circadian rhythm disruption, chronic stress and old age, are increasingly implicated in unbalancing haemostasis. Finally, we describe the emergence of potential therapies with broad-ranging immunothrombotic functions, and how drug development in this area is challenged by our nascent understanding of the key molecular and cellular parameters that control the shared nodes of proinflammatory and procoagulant pathways. Despite the increasing recognition and understanding of the prothrombotic nature of inflammatory disease, significant challenges remain in effectively managing affected patients, and new therapeutic approaches to curtail the key pathogenic steps in immune response-driven thrombosis are urgently required.
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Mwase C, Phung TKN, O’Sullivan MJ, Mitchel JA, De Marzio M, Kılıç A, Weiss ST, Fredberg JJ, Park JA. Mechanical Compression of Human Airway Epithelial Cells Induces Release of Extracellular Vesicles Containing Tenascin C. Cells 2022; 11:cells11020256. [PMID: 35053372 PMCID: PMC8774246 DOI: 10.3390/cells11020256] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/09/2022] [Accepted: 01/10/2022] [Indexed: 02/01/2023] Open
Abstract
Aberrant remodeling of the asthmatic airway is not well understood but is thought to be attributable in part to mechanical compression of airway epithelial cells. Here, we examine compression-induced expression and secretion of the extracellular matrix protein tenascin C (TNC) from well-differentiated primary human bronchial epithelial (HBE) cells grown in an air-liquid interface culture. We measured TNC mRNA expression using RT-qPCR and secreted TNC protein using Western blotting and ELISA. To determine intracellular signaling pathways, we used specific inhibitors for either ERK or TGF-β receptor, and to assess the release of extracellular vesicles (EVs) we used a commercially available kit and Western blotting. At baseline, secreted TNC protein was significantly higher in asthmatic compared to non-asthmatic cells. In response to mechanical compression, both TNC mRNA expression and secreted TNC protein was significantly increased in both non-asthmatic and asthmatic cells. TNC production depended on both the ERK and TGF-β receptor pathways. Moreover, mechanically compressed HBE cells released EVs that contain TNC. These data reveal a novel mechanism by which mechanical compression, as is caused by bronchospasm, is sufficient to induce the production of ECM protein in the airway and potentially contribute to airway remodeling.
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Affiliation(s)
- Chimwemwe Mwase
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (C.M.); (T.-K.N.P.); (M.J.O.); (J.A.M.); (M.D.M.); (S.T.W.); (J.J.F.)
| | - Thien-Khoi N. Phung
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (C.M.); (T.-K.N.P.); (M.J.O.); (J.A.M.); (M.D.M.); (S.T.W.); (J.J.F.)
| | - Michael J. O’Sullivan
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (C.M.); (T.-K.N.P.); (M.J.O.); (J.A.M.); (M.D.M.); (S.T.W.); (J.J.F.)
| | - Jennifer A. Mitchel
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (C.M.); (T.-K.N.P.); (M.J.O.); (J.A.M.); (M.D.M.); (S.T.W.); (J.J.F.)
| | - Margherita De Marzio
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (C.M.); (T.-K.N.P.); (M.J.O.); (J.A.M.); (M.D.M.); (S.T.W.); (J.J.F.)
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA;
| | - Ayşe Kılıç
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA;
| | - Scott T. Weiss
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (C.M.); (T.-K.N.P.); (M.J.O.); (J.A.M.); (M.D.M.); (S.T.W.); (J.J.F.)
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA 02115, USA;
| | - Jeffrey J. Fredberg
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (C.M.); (T.-K.N.P.); (M.J.O.); (J.A.M.); (M.D.M.); (S.T.W.); (J.J.F.)
| | - Jin-Ah Park
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA; (C.M.); (T.-K.N.P.); (M.J.O.); (J.A.M.); (M.D.M.); (S.T.W.); (J.J.F.)
- Correspondence: ; Tel.: +1-617-432-2726
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10
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Womble JT, McQuade VL, Ihrie MD, Ingram JL. Imbalanced Coagulation in the Airway of Type-2 High Asthma with Comorbid Obesity. J Asthma Allergy 2021; 14:967-980. [PMID: 34408442 PMCID: PMC8364356 DOI: 10.2147/jaa.s318017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 07/20/2021] [Indexed: 12/14/2022] Open
Abstract
Asthma is a common, chronic airway inflammatory disease marked by airway hyperresponsiveness, inflammation, and remodeling. Asthma incidence has increased rapidly in the past few decades and recent multicenter analyses have revealed several unique asthma endotypes. Of these, type-2 high asthma with comorbid obesity presents a unique clinical challenge marked by increased resistance to standard therapies and exacerbated disease development. The extrinsic coagulation pathway plays a significant role in both type-2 high asthma and obesity. The type-2 high asthma airway is marked by increased procoagulant potential, which is readily activated following damage to airway tissue. In this review, we summarize the current understanding of the role the extrinsic coagulation pathway plays in the airway of type-2 high asthma with comorbid obesity. We propose that asthma control is worsened in obesity as a result of a systemic and local airway shift towards a procoagulant and anti-fibrinolytic environment. Lastly, we hypothesize bariatric surgery as a treatment for improved asthma management in type-2 high asthma with comorbid obesity, facilitated by normalization of systemic procoagulant and pro-inflammatory mediators. A better understanding of attenuated coagulation parameters in the airway following bariatric surgery will advance our knowledge of biomolecular pathways driving asthma pathobiology in patients with obesity.
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Affiliation(s)
- Jack T Womble
- Division of Pulmonary, Allergy, and Critical Care Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - Victoria L McQuade
- Division of Pulmonary, Allergy, and Critical Care Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - Mark D Ihrie
- Division of Pulmonary, Allergy, and Critical Care Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - Jennifer L Ingram
- Division of Pulmonary, Allergy, and Critical Care Medicine, Duke University Medical Center, Durham, NC, 27710, USA
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11
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De Marzio M, Kılıç A, Maiorino E, Mitchel JA, Mwase C, O'Sullivan MJ, McGill M, Chase R, Fredberg JJ, Park JA, Glass K, Weiss ST. Genomic signatures of the unjamming transition in compressed human bronchial epithelial cells. SCIENCE ADVANCES 2021; 7:7/30/eabf1088. [PMID: 34301595 PMCID: PMC8302128 DOI: 10.1126/sciadv.abf1088] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 06/07/2021] [Indexed: 05/04/2023]
Abstract
Epithelial tissue can transition from a jammed, solid-like, quiescent phase to an unjammed, fluid-like, migratory phase, but the underlying molecular events of the unjamming transition (UJT) remain largely unexplored. Using primary human bronchial epithelial cells (HBECs) and one well-defined trigger of the UJT, compression mimicking the mechanical effects of bronchoconstriction, here, we combine RNA sequencing data with protein-protein interaction networks to provide the first genome-wide analysis of the UJT. Our results show that compression induces an early transcriptional activation of the membrane and actomyosin network and a delayed activation of the extracellular matrix (ECM) and cell-matrix networks. This response is associated with a signaling cascade that promotes actin polymerization and cellular motility through the coordinated interplay of downstream pathways including ERK, JNK, integrin signaling, and energy metabolism. Moreover, in nonasthmatic versus asthmatic HBECs, common genomic patterns associated with ECM remodeling suggest a molecular connection between airway remodeling, bronchoconstriction, and the UJT.
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Affiliation(s)
- Margherita De Marzio
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Ayşe Kılıç
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Enrico Maiorino
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Jennifer A Mitchel
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Chimwemwe Mwase
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Michael J O'Sullivan
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Maureen McGill
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Robert Chase
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
| | - Jeffrey J Fredberg
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Jin-Ah Park
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Kimberly Glass
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA
- Department of Biostatistics, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Scott T Weiss
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
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12
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Extracellular Vesicles and Asthma-More Than Just a Co-Existence. Int J Mol Sci 2021; 22:ijms22094984. [PMID: 34067156 PMCID: PMC8124625 DOI: 10.3390/ijms22094984] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 04/22/2021] [Accepted: 04/28/2021] [Indexed: 02/07/2023] Open
Abstract
Extracellular vesicles (EVs) are membranous structures, which are secreted by almost every cell type analyzed so far. In addition to their importance for cell-cell communication under physiological conditions, EVs are also released during pathogenesis and mechanistically contribute to this process. Here we summarize their functional relevance in asthma, one of the most common chronic non-communicable diseases. Asthma is a complex persistent inflammatory disorder of the airways characterized by reversible airflow obstruction and, from a long-term perspective, airway remodeling. Overall, mechanistic studies summarized here indicate the importance of different subtypes of EVs and their variable cargoes in the functioning of the pathways underlying asthma, and show some interesting potential for the development of future therapeutic interventions. Association studies in turn demonstrate a good diagnostic potential of EVs in asthma.
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13
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Zhao J, Jiang T, Li P, Dai L, Shi G, Jing X, Gao S, Jia L, Wu S, Wang Y, Peng Y, Cheng Z. Tissue factor promotes airway pathological features through epithelial-mesenchymal transition of bronchial epithelial cells in mice with house dust mite-induced asthma. Int Immunopharmacol 2021; 97:107690. [PMID: 33940323 DOI: 10.1016/j.intimp.2021.107690] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 03/30/2021] [Accepted: 04/18/2021] [Indexed: 11/17/2022]
Abstract
It has recently been shown that expression levels of tissue factor (TF) are high in the serum and peripheral blood mononuclear cells of patients with asthma. However, whether TF impacts airway inflammation and remodelling in asthma remains unknown. The aim of this study was to investigate the effect of TF in asthma airway inflammation and remodelling using a house dust mite (HDM)-induced chronic asthma model and human bronchial epithelial (16HBE) cells. A chronic asthma model was constructed in BALB/c mice by the intranasal instillation of HDM. Mice were treated with short hairpin TF (shTF), and airway inflammation and remodelling features of asthma and epithelial-mesenchymal transition (EMT) were assessed. 16HBE cells were induced by transforming growth factor-β1 (TGF-β1) and HDM in the presence or absence of shTF; then, EMT markers and invasion and migration ability were determined. TF expression increased in the lung tissue and 16HBE cells when exposed to HDM. TF downregulation in the lung significantly reduced airway hyperresponsiveness, eosinophil inflammation, the EMT process, and levels of interleukin (IL)-4, IL-6, IL-13, and TGF-β1 in bronchoalveolar lavage fluid of asthmatic mice. Moreover, TF downregulation inhibited migration and incursion and decreased the expression levels of fibronectin 1 and TGF-β1, but increased the expression of E-cadherin in HDM- and TGF-β1-stimulated 16HBE cells. These results demonstrated that TF promoted airway pathological features by enhancing the EMT of bronchial epithelial cells both in vitro and in mice with house dust mite-induced asthma.
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Affiliation(s)
- Junwei Zhao
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Key Clinical Laboratory of Henan Province, Zhengzhou, He'nan 450052, PR China.
| | - Tianci Jiang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, He'nan 450052, PR China; Henan Key Laboratory for Pharmacology of Liver Diseases, Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, He'nan 450052, PR China
| | - Pengfei Li
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, He'nan 450052, PR China; Henan Key Laboratory for Pharmacology of Liver Diseases, Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, He'nan 450052, PR China
| | - Lingling Dai
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, He'nan 450052, PR China
| | - Guang Shi
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Key Clinical Laboratory of Henan Province, Zhengzhou, He'nan 450052, PR China
| | - Xiaogang Jing
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, He'nan 450052, PR China
| | - Shuhui Gao
- Department of Laboratory Medicine, The First Affiliated Hospital of Zhengzhou University, Key Clinical Laboratory of Henan Province, Zhengzhou, He'nan 450052, PR China
| | - Liuqun Jia
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, He'nan 450052, PR China
| | - Shujun Wu
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, He'nan 450052, PR China
| | - Yu Wang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, He'nan 450052, PR China
| | - Youmei Peng
- Henan Key Laboratory for Pharmacology of Liver Diseases, Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, He'nan 450052, PR China
| | - Zhe Cheng
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, He'nan 450052, PR China; Henan Key Laboratory for Pharmacology of Liver Diseases, Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, He'nan 450052, PR China.
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14
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O'Sullivan MJ, Phung TKN, Park JA. Bronchoconstriction: a potential missing link in airway remodelling. Open Biol 2020; 10:200254. [PMID: 33259745 PMCID: PMC7776576 DOI: 10.1098/rsob.200254] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 11/10/2020] [Indexed: 02/06/2023] Open
Abstract
In asthma, progressive structural changes of the airway wall are collectively termed airway remodelling. Despite its deleterious effect on lung function, airway remodelling is incompletely understood. As one of the important causes leading to airway remodelling, here we discuss the significance of mechanical forces that are produced in the narrowed airway during asthma exacerbation, as a driving force of airway remodelling. We cover in vitro, ex vivo and in vivo work in this field, and discuss up-to-date literature supporting the idea that bronchoconstriction may be the missing link in a comprehensive understanding of airway remodelling in asthma.
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Affiliation(s)
| | | | - Jin-Ah Park
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, 665 Huntington Ave, Boston, MA, USA
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15
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The Airway Epithelium-A Central Player in Asthma Pathogenesis. Int J Mol Sci 2020; 21:ijms21238907. [PMID: 33255348 PMCID: PMC7727704 DOI: 10.3390/ijms21238907] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 11/20/2020] [Accepted: 11/21/2020] [Indexed: 12/11/2022] Open
Abstract
Asthma is a chronic inflammatory airway disease characterized by variable airflow obstruction in response to a wide range of exogenous stimuli. The airway epithelium is the first line of defense and plays an important role in initiating host defense and controlling immune responses. Indeed, increasing evidence indicates a range of abnormalities in various aspects of epithelial barrier function in asthma. A central part of this impairment is a disruption of the airway epithelial layer, allowing inhaled substances to pass more easily into the submucosa where they may interact with immune cells. Furthermore, many of the identified susceptibility genes for asthma are expressed in the airway epithelium. This review focuses on the biology of the airway epithelium in health and its pathobiology in asthma. We will specifically discuss external triggers such as allergens, viruses and alarmins and the effect of type 2 inflammatory responses on airway epithelial function in asthma. We will also discuss epigenetic mechanisms responding to external stimuli on the level of transcriptional and posttranscriptional regulation of gene expression, as well the airway epithelium as a potential treatment target in asthma.
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16
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Mitchel JA, Das A, O'Sullivan MJ, Stancil IT, DeCamp SJ, Koehler S, Ocaña OH, Butler JP, Fredberg JJ, Nieto MA, Bi D, Park JA. In primary airway epithelial cells, the unjamming transition is distinct from the epithelial-to-mesenchymal transition. Nat Commun 2020; 11:5053. [PMID: 33028821 PMCID: PMC7542457 DOI: 10.1038/s41467-020-18841-7] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 09/10/2020] [Indexed: 02/07/2023] Open
Abstract
The epithelial-to-mesenchymal transition (EMT) and the unjamming transition (UJT) each comprises a gateway to cellular migration, plasticity and remodeling, but the extent to which these core programs are distinct, overlapping, or identical has remained undefined. Here, we triggered partial EMT (pEMT) or UJT in differentiated primary human bronchial epithelial cells. After triggering UJT, cell-cell junctions, apico-basal polarity, and barrier function remain intact, cells elongate and align into cooperative migratory packs, and mesenchymal markers of EMT remain unapparent. After triggering pEMT these and other metrics of UJT versus pEMT diverge. A computational model attributes effects of pEMT mainly to diminished junctional tension but attributes those of UJT mainly to augmented cellular propulsion. Through the actions of UJT and pEMT working independently, sequentially, or interactively, those tissues that are subject to development, injury, or disease become endowed with rich mechanisms for cellular migration, plasticity, self-repair, and regeneration.
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Affiliation(s)
| | - Amit Das
- Department of Physics, Northeastern University, Boston, MA, USA
| | | | - Ian T Stancil
- Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | | | | | - Oscar H Ocaña
- Instituto de Neurociencias (CSIC-UMH), Alicante, Spain
| | - James P Butler
- Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | | | | | - Dapeng Bi
- Department of Physics, Northeastern University, Boston, MA, USA
| | - Jin-Ah Park
- Harvard T.H. Chan School of Public Health, Boston, MA, USA.
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17
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Veerati PC, Mitchel JA, Reid AT, Knight DA, Bartlett NW, Park JA, Grainge CL. Airway mechanical compression: its role in asthma pathogenesis and progression. Eur Respir Rev 2020; 29:190123. [PMID: 32759373 PMCID: PMC8008491 DOI: 10.1183/16000617.0123-2019] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 01/30/2020] [Indexed: 12/22/2022] Open
Abstract
The lung is a mechanically active organ, but uncontrolled or excessive mechanical forces disrupt normal lung function and can contribute to the development of disease. In asthma, bronchoconstriction leads to airway narrowing and airway wall buckling. A growing body of evidence suggests that pathological mechanical forces induced by airway buckling alone can perpetuate disease processes in asthma. Here, we review the data obtained from a variety of experimental models, including in vitro, ex vivo and in vivo approaches, which have been used to study the impact of mechanical forces in asthma pathogenesis. We review the evidence showing that mechanical compression alters the biological and biophysical properties of the airway epithelium, including activation of the epidermal growth factor receptor pathway, overproduction of asthma-associated mediators, goblet cell hyperplasia, and a phase transition of epithelium from a static jammed phase to a mobile unjammed phase. We also define questions regarding the impact of mechanical forces on the pathology of asthma, with a focus on known triggers of asthma exacerbations such as viral infection.
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Affiliation(s)
- Punnam Chander Veerati
- School of Medicine and Public Health, University of Newcastle, Callaghan, Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, Australia
| | - Jennifer A Mitchel
- Molecular and Integrative Physiological Sciences Program, Dept of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Andrew T Reid
- School of Medicine and Public Health, University of Newcastle, Callaghan, Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, Australia
| | - Darryl A Knight
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, Australia
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, Australia
- Dept of Anesthesiology, Pharmacology and Therapeutics, University of British Columbia, Vancouver, Canada
- Research and Academic Affairs, Providence Health Care Research Institute, Vancouver, Canada
| | - Nathan W Bartlett
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, Australia
- School of Biomedical Sciences and Pharmacy, University of Newcastle, Callaghan, Australia
| | - Jin-Ah Park
- Molecular and Integrative Physiological Sciences Program, Dept of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Chris L Grainge
- School of Medicine and Public Health, University of Newcastle, Callaghan, Australia
- Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, New Lambton Heights, Australia
- Dept of Respiratory and Sleep Medicine, John Hunter Hospital, Newcastle, Australia
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18
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Barrios J, Kho AT, Aven L, Mitchel JA, Park JA, Randell SH, Miller LA, Tantisira KG, Ai X. Pulmonary Neuroendocrine Cells Secrete γ-Aminobutyric Acid to Induce Goblet Cell Hyperplasia in Primate Models. Am J Respir Cell Mol Biol 2020; 60:687-694. [PMID: 30571139 DOI: 10.1165/rcmb.2018-0179oc] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Mucus overproduction is a major contributor to morbidity and mortality in asthma. Mucus overproduction is induced by orchestrated actions of multiple factors that include inflammatory cytokines and γ-aminobutyric acid (GABA). GABA is produced only by pulmonary neuroendocrine cells (PNECs) in the mouse lung. Recent studies in a neonatal mouse model of allergic inflammation have shown that PNECs play an essential role in mucus overproduction by GABA hypersecretion. Whether PNECs mediate dysregulated GABA signaling for mucus overproduction in asthma is unknown. In this study, we characterized the cellular source of GABA in the lungs of nonhuman primates and humans and assessed GABA secretion and signaling in primate disease models. We found that like in mice, PNECs were the major source of GABA in primate lungs. In addition, an infant nonhuman primate model of asthma exhibited an increase in GABA secretion. Furthermore, subjects with asthma had elevated levels of expression of a subset of GABA type α (GABAα) and type β (GABAβ) receptors in airway epithelium compared with those of healthy control subjects. Last, employing a normal human bronchial epithelial cell model of preinduced mucus overproduction, we showed pharmaceutical blockade of GABAα and GABAβ receptor signaling reversed the effect of IL-13 on MUC5AC gene expression and goblet cell proliferation. Together, our data demonstrate an evolutionarily conserved intraepithelial GABA signaling that, in concert with IL-13, plays an essential role in mucus overproduction. Our findings may offer new strategies to ameliorate mucus overproduction in patients with asthma by targeting PNEC secretion and GABA signaling.
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Affiliation(s)
- Juliana Barrios
- 1 The Pulmonary Center, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Alvin T Kho
- 2 The Channing Division of Network Medicine, and
| | - Linh Aven
- 1 The Pulmonary Center, Department of Medicine, Boston University School of Medicine, Boston, Massachusetts
| | - Jennifer A Mitchel
- 3 Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Jin-Ah Park
- 3 Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Scott H Randell
- 4 Department of Cell Biology and Physiology, School of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina; and
| | - Lisa A Miller
- 5 Department of Anatomy, Physiology, and Cell Biology, School of Veterinary Medicine, University of California, Davis, California
| | | | - Xingbin Ai
- 6 Division of Pulmonary and Critical Care Medicine, Brigham and Women's Hospital, Boston, Massachusetts
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19
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O'Sullivan MJ, Mitchel JA, Das A, Koehler S, Levine H, Bi D, Nagel ZD, Park JA. Irradiation Induces Epithelial Cell Unjamming. Front Cell Dev Biol 2020; 8:21. [PMID: 32117962 PMCID: PMC7026004 DOI: 10.3389/fcell.2020.00021] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Accepted: 01/13/2020] [Indexed: 12/25/2022] Open
Abstract
The healthy and mature epithelial layer is ordinarily quiescent, non-migratory, solid-like, and jammed. However, in a variety of circumstances the layer transitions to a phase that is dynamic, migratory, fluid-like and unjammed. This has been demonstrated in the developing embryo, the developing avian airway, the epithelial layer reconstituted in vitro from asthmatic donors, wounding, and exposure to mechanical stress. Here we examine the extent to which ionizing radiation might similarly provoke epithelial layer unjamming. We exposed primary human bronchial epithelial (HBE) cells maintained in air-liquid interface (ALI) to sub-therapeutic doses (1 Gy) of ionizing radiation (IR). We first assessed: (1) DNA damage by measuring p-H2AX, (2) the integrity of the epithelial layer by measuring transepithelial electrical resistance (TEER), and (3) the extent of epithelial cell differentiation by detecting markers of differentiated airway epithelial cells. As expected, IR exposure induced DNA damage but, surprisingly, disrupted neither normal differentiation nor the integrity of the epithelial cell layer. We then measured cell shape and cellular migration to determine the extent of the unjamming transition (UJT). IR caused cell shape elongation and increased cellular motility, both of which are hallmarks of the UJT as previously confirmed. To understand the mechanism of IR-induced UJT, we inhibited TGF-β receptor activity, and found that migratory responses were attenuated. Together, these observations show that IR can provoke epithelial layer unjamming in a TGF-β receptor-dependent manner.
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Affiliation(s)
- Michael J O'Sullivan
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Jennifer A Mitchel
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Amit Das
- Department of Physics, Northeastern University, Boston, MA, United States
| | - Stephan Koehler
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Herbert Levine
- Department of Physics, Northeastern University, Boston, MA, United States
| | - Dapeng Bi
- Department of Physics, Northeastern University, Boston, MA, United States
| | - Zachary D Nagel
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, United States
| | - Jin-Ah Park
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, MA, United States
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20
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Kılıç A, Ameli A, Park JA, Kho AT, Tantisira K, Santolini M, Cheng F, Mitchel JA, McGill M, O'Sullivan MJ, De Marzio M, Sharma A, Randell SH, Drazen JM, Fredberg JJ, Weiss ST. Mechanical forces induce an asthma gene signature in healthy airway epithelial cells. Sci Rep 2020; 10:966. [PMID: 31969610 PMCID: PMC6976696 DOI: 10.1038/s41598-020-57755-8] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 12/23/2019] [Indexed: 12/27/2022] Open
Abstract
Bronchospasm compresses the bronchial epithelium, and this compressive stress has been implicated in asthma pathogenesis. However, the molecular mechanisms by which this compressive stress alters pathways relevant to disease are not well understood. Using air-liquid interface cultures of primary human bronchial epithelial cells derived from non-asthmatic donors and asthmatic donors, we applied a compressive stress and then used a network approach to map resulting changes in the molecular interactome. In cells from non-asthmatic donors, compression by itself was sufficient to induce inflammatory, late repair, and fibrotic pathways. Remarkably, this molecular profile of non-asthmatic cells after compression recapitulated the profile of asthmatic cells before compression. Together, these results show that even in the absence of any inflammatory stimulus, mechanical compression alone is sufficient to induce an asthma-like molecular signature.
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Affiliation(s)
- Ayşe Kılıç
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Asher Ameli
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Department of Physics, Northeastern University, Boston, MA, USA
| | - Jin-Ah Park
- Program in Molecular Integrative Phyisological Sciences, Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Alvin T Kho
- Computational Health Informatics Program, Boston Children's Hospital, Boston, MA, USA
| | - Kelan Tantisira
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Marc Santolini
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Centre for Research and Interdisciplinarity (CRI), Paris, F-75014, France
| | - Feixiong Cheng
- Genomic Medicine Institute, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, 44195, USA
- Department of Molecular Medicine, Cleveland Clinic Lerner College of Medicine, Case Western Reserve University, Cleveland, OH, 44195, USA
- Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, Ohio, 44106, USA
| | - Jennifer A Mitchel
- Program in Molecular Integrative Phyisological Sciences, Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Maureen McGill
- Program in Molecular Integrative Phyisological Sciences, Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Michael J O'Sullivan
- Program in Molecular Integrative Phyisological Sciences, Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Margherita De Marzio
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
- Program in Molecular Integrative Phyisological Sciences, Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Amitabh Sharma
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA
| | - Scott H Randell
- Marsico Lung Institute/Cystic Fibrosis Center, University of North Carolina, Chapel Hill, NC, USA
| | - Jeffrey M Drazen
- Program in Molecular Integrative Phyisological Sciences, Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Jeffrey J Fredberg
- Program in Molecular Integrative Phyisological Sciences, Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
| | - Scott T Weiss
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, USA.
- Program in Molecular Integrative Phyisological Sciences, Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA.
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21
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Kan S, Hariyadi DM, Grainge C, Knight DA, Bartlett NW, Liang M. Airway epithelial-targeted nanoparticles for asthma therapy. Am J Physiol Lung Cell Mol Physiol 2020; 318:L500-L509. [PMID: 31913649 DOI: 10.1152/ajplung.00237.2019] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Asthma is a common chronic inflammatory disease associated with intermittent airflow obstruction caused by airway inflammation, mucus overproduction, and bronchial hyperresponsiveness. Despite current treatment and management options, a large number of patients with asthma still have poorly controlled disease and are susceptible to acute exacerbations, usually caused by a respiratory virus infection. As a result, there remains a need for novel therapies to achieve better control and prevent/treat exacerbations. Nanoparticles (NPs), including extracellular vesicles (EV) and their synthetic counterparts, have been developed for drug delivery in respiratory diseases. In the case of asthma, where airway epithelium dysfunction, including dysregulated differentiation of epithelial cells, impaired barrier, and immune response, is a driver of disease, targeting airway epithelial cells with NPs may offer opportunities to repair or reverse these dysfunctions with therapeutic interventions. EVs possess multiple advantages for airway epithelial targeting, such as their natural intrinsic cell-targeting properties and low immunogenicity. Synthetic NPs can be coated with muco-inert polymers to overcome biological barriers such as mucus and the phagocytic response of immune cells. Targeting ligands could be also added to enhance targeting specificity to epithelial cells. The review presents current understanding and advances in NP-mediated drug delivery to airway epithelium for asthma therapy. Future perspectives in this therapeutic strategy will also be discussed, including the development of novel formulations and physiologically relevant preclinical models.
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Affiliation(s)
- Stanislav Kan
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, New South Wales, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, New South Wales, Australia
| | | | - Christopher Grainge
- School of Medicine and Public Health, The University of Newcastle, Callaghan, New South Wales, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, New South Wales, Australia
| | - Darryl A Knight
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, New South Wales, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, New South Wales, Australia
| | - Nathan W Bartlett
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, New South Wales, Australia.,Priority Research Centre for Healthy Lungs, Hunter Medical Research Institute, The University of Newcastle, New South Wales, Australia
| | - Mingtao Liang
- School of Biomedical Sciences and Pharmacy, The University of Newcastle, Callaghan, New South Wales, Australia.,Faculty of Pharmacy, Universitas Airlangga, Surabaya, Indonesia
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22
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Selamu M, Hanlon C, Medhin G, Thornicroft G, Fekadu A. Burnout among primary healthcare workers during implementation of integrated mental healthcare in rural Ethiopia: a cohort study. HUMAN RESOURCES FOR HEALTH 2019; 17:58. [PMID: 31319872 PMCID: PMC6639922 DOI: 10.1186/s12960-019-0383-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 06/05/2019] [Indexed: 05/17/2023]
Abstract
BACKGROUND The short-term course of burnout in healthcare workers in low- and middle-income countries has undergone limited evaluation. The aim of this study was to assess the short-term outcome of burnout symptoms in the context of implementation of a new mental health programme in a rural African district. METHODS We followed up 145 primary healthcare workers (HCWs) working in 66 rural primary healthcare (PHC) facilities in Southern Ethiopia, where a new integrated mental health service was being implemented. Burnout was assessed at baseline, i.e. when the new service was being introduced, and after 6 months. Data were collected through self-administered questionnaires, including the Maslach Burnout Inventory (MBI) and instruments measuring professional satisfaction and psychosocial factors. Generalised estimating equations (GEE) were used to assess the association between change in the core dimension of burnout (emotional exhaustion) and relevant work-related and psychosocial factors. RESULTS A total of 136 (93.8%) of HCWs completed and returned their questionnaires at 6 months. There was a non-significant reduction in the burnout level between the two time points. In GEE regression models, high depression symptom scores (adjusted mean difference (aMD) 0.56, 95% CI 0.29, 0.83, p < 0.01), experiencing two or more stressful life events (aMD 1.37, 95% CI 0.06, 2.14, p < 0.01), being a community health extension worker vs. facility-based HCW (aMD 5.80, 95% CI 3.21, 8.38, p < 0.01), perceived job insecurity (aMD 0.73, 95% CI 0.08, 1.38, p = 0.03) and older age (aMD 0.36, 95% CI 0.09, 0.63, p = 0.01) were significantly associated with higher levels of emotional exhaustion longitudinally. CONCLUSION In the short-term, there was no significant change in the level of burnout in the context of adding mental healthcare to the workload of HCWs. However, longer term and larger scale studies are required to substantiate this. This evidence can serve as baseline information for an intervention development to enhance wellbeing and reduce burnout.
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Affiliation(s)
- Medhin Selamu
- College of Health Sciences, School of Medicine, Department of Psychiatry, Addis Ababa University, PO Box 9086, Addis Ababa, Ethiopia
| | - Charlotte Hanlon
- College of Health Sciences, School of Medicine, Department of Psychiatry, Addis Ababa University, PO Box 9086, Addis Ababa, Ethiopia
- Centre for Global Mental Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
- Centre for Innovative Drug Development and Therapeutic Trials for Africa (CDT-Africa), College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
| | - Girmay Medhin
- Centre for Innovative Drug Development and Therapeutic Trials for Africa (CDT-Africa), College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
- Aklilu Lemma Institute of Pathobiology, Addis Ababa University, Addis Ababa, Ethiopia
| | - Graham Thornicroft
- Centre for Global Mental Health, Health Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
| | - Abebaw Fekadu
- College of Health Sciences, School of Medicine, Department of Psychiatry, Addis Ababa University, PO Box 9086, Addis Ababa, Ethiopia
- Centre for Innovative Drug Development and Therapeutic Trials for Africa (CDT-Africa), College of Health Sciences, Addis Ababa University, Addis Ababa, Ethiopia
- Global Health & Infection Department, Brighton and Sussex Medical School, Brighton, United Kingdom
- Department of Psychological Medicine, Centre for Affective Disorders, Institute of Psychiatry, Psychology and Neuroscience, King’s College London, London, United Kingdom
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23
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O'Sullivan MJ, Lan B. The Aftermath of Bronchoconstriction. ACTA ACUST UNITED AC 2019; 2:0108031-108036. [PMID: 32328569 DOI: 10.1115/1.4042318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 10/30/2018] [Indexed: 11/08/2022]
Abstract
Asthma is characterized by chronic airway inflammation, airway remodeling, and excessive constriction of the airway. Detailed investigation exploring inflammation and the role of immune cells has revealed a variety of possible mechanisms by which chronic inflammation drives asthma development. However, the underlying mechanisms of asthma pathogenesis still remain poorly understood. New evidence now suggests that mechanical stimuli that arise during bronchoconstriction may play a critical role in asthma development. In this article, we review the mechanical effect of bronchoconstriction and how these mechanical stresses contribute to airway remodeling independent of inflammation.
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Affiliation(s)
- Michael J O'Sullivan
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, 665 Huntington Avenue, 1-G07, Boston, MA 02115
| | - Bo Lan
- Department of Environmental Health, Harvard T. H. Chan School of Public Health, 665 Huntington Avenue, 1-G07, Boston, MA 02115 e-mail:
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24
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Grainge C, Park JA. Inflammatory insights into airway remodelling in asthma. Respirology 2018; 23:1084-1085. [PMID: 30129688 DOI: 10.1111/resp.13390] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 08/06/2018] [Indexed: 12/24/2022]
Affiliation(s)
- Chris Grainge
- Centre for Healthy Lungs, Hunter Medical Research Institute, University of Newcastle, Newcastle, NSW, Australia
| | - Jin-Ah Park
- Department of Environmental Health, Harvard TH Chan School of Public Health, Boston, MA, USA
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25
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Lan B, Mitchel JA, O’Sullivan MJ, Park CY, Kim JH, Cole WC, Butler JP, Park JA. Airway epithelial compression promotes airway smooth muscle proliferation and contraction. Am J Physiol Lung Cell Mol Physiol 2018; 315:L645-L652. [PMID: 30070589 PMCID: PMC6295502 DOI: 10.1152/ajplung.00261.2018] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
During acute bronchoconstriction, the airway epithelium becomes mechanically compressed, as airway smooth muscle contracts and the airway narrows. This mechanical compression activates airway epithelium to promote asthmatic airway remodeling. However, whether compressed airway epithelium can feed back on the cause of bronchoconstriction has remained an open question. Here we examine the potential for epithelial compression to augment proliferation and contraction of airway smooth muscle, and thus potentiate further bronchoconstriction and epithelial compression. Well-differentiated primary human bronchial epithelial (HBE) cells maintained in air-liquid interface culture were mechanically compressed to mimic the effect of bronchoconstriction. Primary human airway smooth muscle (HASM) cells were incubated with conditioned media collected from mechanically compressed HBE cells to examine the effect of epithelial-derived mediators on HASM cell proliferation using an EdU assay and HASM cell contraction using traction microscopy. An endothelin receptor antagonist, PD-145065, was employed to probe the role of HBE cell-derived endothelin-1 on the proliferation and contraction of HASM cells. Conditioned media from compressed HBE cells increased HASM cell proliferation, independent of the endothelin-1 signaling pathway. However, conditioned media from compressed HBE cells significantly increased HASM cell basal contraction and histamine-induced contraction, both of which depended on the endothelin-1 signaling pathway. Our data demonstrate that mechanical compression of bronchial epithelial cells contributes to proliferation and basal contraction of airway smooth muscle cells and that augmented contraction depends on epithelial cell-derived endothelin-1. By means of both airway smooth muscle remodeling and contractility, our findings suggest a causal role of epithelial compression on asthma pathogenesis.
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Affiliation(s)
- Bo Lan
- 1Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts,2Smooth Muscle Research Group and Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Alberta, Canada
| | - Jennifer A. Mitchel
- 1Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Michael J. O’Sullivan
- 1Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Chan Young Park
- 1Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - Jae Hun Kim
- 1Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
| | - William C. Cole
- 2Smooth Muscle Research Group and Department of Physiology and Pharmacology, Cumming School of Medicine, University of Calgary, Alberta, Canada
| | - James P. Butler
- 1Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts,3Division of Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Jin-Ah Park
- 1Department of Environmental Health, Harvard T. H. Chan School of Public Health, Boston, Massachusetts
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26
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Fu B, Liu ZL, Zhang H, Gu F. Interleukin-13 and age-related macular degeneration. Int J Ophthalmol 2017; 10:535-540. [PMID: 28503424 DOI: 10.18240/ijo.2017.04.06] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Accepted: 12/03/2016] [Indexed: 02/07/2023] Open
Abstract
AIM o identify the effects of interleukin (IL)-13 on retinal pigment epithelial (RPE) cells and the IL-13 level in aqueous humor of age-related macular degeneration (AMD) patients. METHODS IL-13 levels in aqueous humor specimens from AMD patients were detected with enzyme-linked immunosorbent assay (ELISA). ARPE-19 cells were treated with 10 ng/mL IL-13 for 12, 24, and 48h. The cell proliferaton was evaluated by the MTS method. The mRNA and protein levels of α-SMA and ZO-1 were evaluated with quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot respectively. The expression of tumor necrosis factor-α (TNF-α), transforming growth factor-β (TGF-β) and vascular endothelial growth factor (VEGF) were assessed by ELISA. RESULTS IL-13 levels in the aqueous humor of patients with AMD were significantly higher than those in the control (167.33±17.64 vs 27.12±5.65 pg/mL; P<0.01). In vitro, IL-13 of high concentrations (10, 15, and 20 ng/mL) inhibited ARPE-19 cell proliferation. α-SMA mRNA in ARPE-19 cell were increased (1.017±0.112 vs 1.476±0.168; P<0.001) and ZO-1 decreased (1.051±0.136 vs 0.702±0.069; P<0.001) after treated with 10 ng/mL IL-13 for 48h. The protein expression of α-SMA and ZO-1 also showed the same tendency (α-SMA: P=0.038; ZO-1: P=0.008). IL-13 significantly reduced the level of TNF-α (44.70±1.67 vs 31.79±3.53 pg/mL; P=0.005) at 48h, but the level of TGF-β2 was significantly increased from 34.44±2.92 to 57.61±6.31 pg/mL at 24h (P=0.004) and from 61.26±1.11 to 86.91±3.59 pg/mL at 48h (P<0.001). While expressions of VEGF didn't change after IL-13 treatment. CONCLUSION IL-13 in vitro inhibit ARPE-19 cell proliferation and expression in the aqueous may be associated with AMD.
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Affiliation(s)
- Bo Fu
- China Medical University, Shenyang 110001, Liaoning Province, China
| | - Zhe-Li Liu
- China Medical University, Shenyang 110001, Liaoning Province, China
| | - Han Zhang
- Department of Ophthalmology, the First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
| | - Feng Gu
- Department of Ophthalmology, the First Hospital of China Medical University, Shenyang 110001, Liaoning Province, China
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