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Ghio AJ, Stewart M, Sangani RG, Pavlisko EN, Roggli VL. Asbestos and Iron. Int J Mol Sci 2023; 24:12390. [PMID: 37569765 PMCID: PMC10419076 DOI: 10.3390/ijms241512390] [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: 07/03/2023] [Revised: 07/28/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
Theories of disease pathogenesis following asbestos exposure have focused on the participation of iron. After exposure, an open network of negatively charged functional groups on the fiber surface complexes host metals with a preference for iron. Competition for iron between the host and the asbestos results in a functional metal deficiency. The homeostasis of iron in the host is modified by the cell response, including increased import to correct the loss of the metal to the fiber surface. The biological effects of asbestos develop in response to and are associated with the disruption of iron homeostasis. Cell iron deficiency in the host following fiber exposure activates kinases and transcription factors, which are associated with the release of mediators coordinating both inflammatory and fibrotic responses. Relative to serpentine chrysotile, the clearance of amphiboles is incomplete, resulting in translocation to the mesothelial surface of the pleura. Since the biological effect of asbestos is dependent on retention of the fiber, the sequestration of iron by the surface, and functional iron deficiency in the cell, the greater clearance (i.e., decreased persistence) of chrysotile results in its diminished impact. An inability to clear asbestos from the lower respiratory tract initiates a host process of iron biomineralization (i.e., asbestos body formation). Host cells attempt to mobilize the metal sequestered by the fiber surface by producing superoxide at the phagosome membrane. The subsequent ferrous cation is oxidized and undergoes hydrolysis, creating poorly crystalline iron oxyhydroxide (i.e., ferrihydrite) included in the coat of the asbestos body.
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Affiliation(s)
- Andrew J. Ghio
- US Environmental Protection Agency, Research Triangle Park, NC 27711, USA
| | - Matthew Stewart
- Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA;
| | - Rahul G. Sangani
- Department of Medicine, West Virginia University, Morgantown, WV 26506, USA;
| | - Elizabeth N. Pavlisko
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; (E.N.P.); (V.L.R.)
| | - Victor L. Roggli
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; (E.N.P.); (V.L.R.)
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Donelan W, Dominguez-Gutierrez PR, Kusmartsev S. Deregulated hyaluronan metabolism in the tumor microenvironment drives cancer inflammation and tumor-associated immune suppression. Front Immunol 2022; 13:971278. [PMID: 36238286 PMCID: PMC9550864 DOI: 10.3389/fimmu.2022.971278] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 09/07/2022] [Indexed: 11/13/2022] Open
Abstract
Hyaluronan (HA) is known to be a prominent component of the extracellular matrix in tumors, and many solid cancers are characterized by aberrant HA metabolism resulting in increased production in tumor tissue. HA has been implicated in regulating a variety of cellular functions in tumor cells and tumor-associated stromal cells, suggesting that altered HA metabolism can influence tumor growth and malignancy at multiple levels. Importantly, increased HA production in cancer is associated with enhanced HA degradation due to high levels of expression and activity of hyaluronidases (Hyal). Understanding the complex molecular and cellular mechanisms involved in abnormal HA metabolism and catabolism in solid cancers could have important implications for the design of future cancer therapeutic approaches. It appears that extensive crosstalk between immune cells and HA-enriched stroma contributes to tumor growth and progression in several ways. Specifically, the interaction of tumor-recruited Hyal2-expressing myeloid-derived suppressor cells (MDSCs) of bone marrow origin with HA-producing cancer-associated fibroblasts and epithelial tumor cells results in enhanced HA degradation and accumulation of small pro-inflammatory HA fragments, which further drives cancer-related inflammation. In addition, hyaluronan-enriched stroma supports the transition of tumor-recruited Hyal2+MDSCs to the PD-L1+ tumor-associated macrophages leading to the formation of an immunosuppressive and tolerogenic tumor microenvironment. In this review, we aim to discuss the contribution of tumor-associated HA to cancer inflammation, angiogenesis, and tumor-associated immune suppression. We also highlight the recent findings related to the enhanced HA degradation in the tumor microenvironment.
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Ghio AJ, Pavlisko EN, Roggli VL, Todd NW, Sangani RG. Cigarette Smoke Particle-Induced Lung Injury and Iron Homeostasis. Int J Chron Obstruct Pulmon Dis 2022; 17:117-140. [PMID: 35046648 PMCID: PMC8763205 DOI: 10.2147/copd.s337354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 12/06/2021] [Indexed: 11/23/2022] Open
Abstract
It is proposed that the mechanistic basis for non-neoplastic lung injury with cigarette smoking is a disruption of iron homeostasis in cells after exposure to cigarette smoke particle (CSP). Following the complexation and sequestration of intracellular iron by CSP, the host response (eg, inflammation, mucus production, and fibrosis) attempts to reverse a functional metal deficiency. Clinical manifestations of this response can present as respiratory bronchiolitis, desquamative interstitial pneumonitis, pulmonary Langerhans’ cell histiocytosis, asthma, pulmonary hypertension, chronic bronchitis, and pulmonary fibrosis. If the response is unsuccessful, the functional deficiency of iron progresses to irreversible cell death evident in emphysema and bronchiectasis. The subsequent clinical and pathological presentation is a continuum of lung injuries, which overlap and coexist with one another. Designating these non-neoplastic lung injuries after smoking as distinct disease processes fails to recognize shared relationships to each other and ultimately to CSP, as well as the common mechanistic pathway (ie, disruption of iron homeostasis).
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Affiliation(s)
- Andrew J Ghio
- Human Studies Facility, US Environmental Protection Agency, Chapel Hill, NC, 27514, USA
- Correspondence: Andrew J Ghio Human Studies Facility, US Environmental Protection Agency, 104 Mason Farm Road, Chapel Hill, NC, USA Email
| | | | | | - Nevins W Todd
- Department of Medicine, University of Maryland, Baltimore, MD, 21201, USA
| | - Rahul G Sangani
- Department of Medicine, West Virginia University, Morgantown, WV, USA
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Lee BM, Park SJ, Noh I, Kim CH. The effects of the molecular weights of hyaluronic acid on the immune responses. Biomater Res 2021; 25:27. [PMID: 34462017 PMCID: PMC8404285 DOI: 10.1186/s40824-021-00228-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 08/17/2021] [Indexed: 12/18/2022] Open
Abstract
Background The molecular weight of hyaluronic acid (HyA) depends on the type of organ in the body. When HyA of the desired molecular weight is implanted into the human body for regeneration of damaged tissue, it is degraded by hyaluronidase in associated with an inflammatory response. This study sought to evaluate the effects of HyA molecular weight and concentration on pro- and anti-inflammatory responses in murine macrophages. Methods The structures and molecular weights of HyAs (LMW-10, MMW-100, MMW-500, and HMW-1,500) were confirmed by 1 H NMR and gel permeation chromatography (GPC), respectively. After treatment of murine macrophages with a low (10 µg/mL) or high (100 µg/mL) concentration of each molecular weight HyA, cells were stimulated with lipopolysaccharide (LPS) and changes in immune response in both LPS-stimulated and untreated macrophages were evaluated by assessing nitric oxide (NO) production, and analyzing expression of pro- and anti-inflammatory genes including by RT-PCR. Results Molecular weights of LMW-10, MMW-100, MMW-500, and HMW-1,500 were 13,241 ± 161, 96,531 ± 1,167, 512,657 ± 8,545, and 1,249,500 ± 37,477 Da, respectively. NO production by LPS-stimulated macrophages was decreased by increasing concentrations and molecular weights of HyA. At a high concentration of 100 µg/mL, HMW-1,500 reduced NO production in LPS-stimulated macrophages to about 45 %. Using NanoString technology, we also found that the immune-related genes TNF-α, IL-6, IL-1β, TGF-β1, IL-10, IL-11, CCL2, and Arg1 were specifically over-expressed in LPS-stimulated macrophages treated with various molecular weights of HyA. An RT-PCR analysis of gene expression showed that HMW-1,500 decreased expression of classically activated (M1) macrophage genes, such as TNF‐α, IL-6, CCL2, and IL-1β, in LPS-stimulated macrophages, whereas medium molecular-weight HyA (MMW-100 and MMW-500) instead increased expression levels of these genes. HMW-1,500 at a high concentration (100 µg/mL) significantly decreased expression of pro-inflammatory genes in LPS-stimulated macrophages. Expression of genes associated with anti-inflammatory responses (M2 phenotype), such as TGF-β1, IL-10, IL-11, and Arg1, were increased by high concentrations of MMW-500 and HMW-1,500 in LPS-stimulated macrophages. Conclusions High molecular-weight HyA (i.e., > 1,250 kDa) inhibits pro-inflammatory responses in LPS-stimulated macrophages and induces anti-inflammatory responses in a concentration dependent manner.
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Affiliation(s)
- Bo Mi Lee
- Laboratory of Tissue Engineering, Korea Institute of Radiological and Medical Sciences, 01812, Seoul, Korea.,Department of Convergence program of Biomedical Engineering & Biomaterials, The Graduate School, Seoul National University of Science and Technology, Seoul, Korea
| | - Sang Jun Park
- Laboratory of Tissue Engineering, Korea Institute of Radiological and Medical Sciences, 01812, Seoul, Korea
| | - Insup Noh
- Department of Convergence program of Biomedical Engineering & Biomaterials, The Graduate School, Seoul National University of Science and Technology, Seoul, Korea
| | - Chun-Ho Kim
- Laboratory of Tissue Engineering, Korea Institute of Radiological and Medical Sciences, 01812, Seoul, Korea.
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Waeijen-Smit K, Reynaert NL, Beijers RJHCG, Houben-Wilke S, Simons SO, Spruit MA, Franssen FME. Alterations in plasma hyaluronic acid in patients with clinically stable COPD versus (non)smoking controls. Sci Rep 2021; 11:15883. [PMID: 34354097 PMCID: PMC8342478 DOI: 10.1038/s41598-021-95030-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 07/20/2021] [Indexed: 12/02/2022] Open
Abstract
Hyaluronic acid (HA) is a key component of the extracellular matrix. HA and its metabolism are suggested to be altered in the lungs of patients with chronic obstructive pulmonary disease (COPD). The present study explored systemic HA, and its metabolic regulators, in patients with clinically stable COPD and smoking and non-smoking controls. Furthermore, associations of HA with acute exacerbations (AECOPD), airway-related hospitalizations, systemic inflammation and cardiovascular risk were studied. In total, 192 patients with moderate to very severe COPD [aged 62.3 y (± SD 7.0)], 84 smoking controls [aged 61.8 y (± 5.7)], and 107 non-smoking controls [aged 60.1 y (± 7.0)] were included. Plasma HA was reduced in patients with COPD compared to non-smoking controls (p = 0.033), but was comparable after adjusting for age and sex. Expression of HAS-3 did not differ between groups, but was substantially less detectable in more patients with COPD than (non)smoking controls (p < 0.001). Expression of HYAL-2 was enhanced in patients with COPD versus smoking (p = 0.019) and non-smoking (p < 0.001) controls, also in the age- and sex- adjusted model (p < 0.001). Plasma HA was not associated with AECOPD, airway-related hospitalizations in the previous year, or systemic inflammation in COPD. Arterial pulse wave velocity explained some of the variance (< 10%) in plasma HA (p = 0.006). Overall, these results indicate that expression of HYAL-2, but not plasma HA nor HAS-3, is enhanced in patients with COPD compared to (non)smoking controls. Furthermore, HA was not associated with clinical outcomes, yet, cardiovascular risk might play a role in its systemic regulation in stable COPD.
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Affiliation(s)
- Kiki Waeijen-Smit
- Department of Research and Education, Ciro, Horn, The Netherlands. .,Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands.
| | - Niki L Reynaert
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Rosanne J H C G Beijers
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | | | - Sami O Simons
- Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Martijn A Spruit
- Department of Research and Education, Ciro, Horn, The Netherlands.,Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
| | - Frits M E Franssen
- Department of Research and Education, Ciro, Horn, The Netherlands.,Department of Respiratory Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, The Netherlands
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De Santi C, Greene CM. Bronchial Epithelial Cell Transcriptomics: A Tool to Monitor and Predict Chronic Obstructive Pulmonary Disease Progression? Am J Respir Cell Mol Biol 2021; 64:399-400. [PMID: 33600733 PMCID: PMC8008799 DOI: 10.1165/rcmb.2021-0057ed] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Affiliation(s)
- Chiara De Santi
- Department of Clinical Microbiology Royal College of Surgeons in Ireland Dublin, Ireland
| | - Catherine M Greene
- Department of Clinical Microbiology Royal College of Surgeons in Ireland Dublin, Ireland
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Use of Hyaluronic Acid (HA) in Chronic Airway Diseases. Cells 2020; 9:cells9102210. [PMID: 33003557 PMCID: PMC7601363 DOI: 10.3390/cells9102210] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/20/2020] [Accepted: 09/29/2020] [Indexed: 12/16/2022] Open
Abstract
Hyaluronic acid (HA) is a key component of the extracellular matrix of the lungs. A unique attribute of HA is its water-retaining properties, so HA has a major role in the regulation of fluid balance in the lung interstitium. Hyaluronic acid has been widely used in the treatment of eyes, ears, joints and skin disorders, but in the last years, it has been also proposed in the treatment of certain lung diseases, including airway diseases, due to its anti-inflammatory and water-binding capacities. Hyaluronic acid aerosol decreases the severity of elastase-induced emphysema in murine models, prevents bronchoconstriction in asthmatics and improves some functional parameters in chronic obstructive pulmonary disease (COPD) patients. Due to the protection of HA against bronchoconstriction and its hydration properties, inhaled HA would increase the volume of airway surface liquid, resulting in mucus hydration, increased mucous transport and less mucous plugging of the airways. In addition, it has been seen in human studies that the treatment with nebulised HA improves the tolerability of nebulised hypertonic saline (even at 6% or 7% of concentration), which has been demonstrated to be an effective treatment in bronchial secretion management in patients with cystic fibrosis and bronchiectasis. Our objective is to review the role of HA treatment in the management of chronic airway diseases.
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Ooki T, Hatakeyama M. Hyaluronan Degradation Promotes Cancer via Hippo-YAP Signaling: An Intervention Point for Cancer Therapy. Bioessays 2020; 42:e2000005. [PMID: 32449813 DOI: 10.1002/bies.202000005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 03/16/2020] [Indexed: 12/14/2022]
Abstract
High-molecular-weight hyaluronan acts as a ligand of the tumor-suppressive Hippo signal, whereas degradation of hyaluronan from a high-molecular-weight form to a low-molecular-weight forms by hyaluronidase 2 inhibits Hippo signal activation and thereby activates the pro-oncogenic transcriptional coactivator yes-associated protein (YAP), which creates a cancer-predisposing microenvironment and drives neoplastic transformation of cells through both cell-autonomous and non-cell-autonomous mechanisms. In fact, accumulation of low-molecular-weight hyaluronan in tissue stroma is observed in many types of cancers. Since inhibition of YAP activity suppresses tumor growth in vivo, pharmacological intervention of the Hippo-YAP signal is an attractive approach for future drug development. In this review, pharmacological intervention of excessive hyaluronan degradation as a novel approach for inhibition of the Hippo-YAP signal is also discussed. Development of hyaluronidase inhibitors may provide novel therapeutic strategies for human malignant tumors.
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Affiliation(s)
- Takuya Ooki
- Division of Microbiology, Graduate School of Medicine, the University of Tokyo, Tokyo, 113-0033, Japan
| | - Masanori Hatakeyama
- Division of Microbiology, Graduate School of Medicine, the University of Tokyo, Tokyo, 113-0033, Japan
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Avenoso A, Bruschetta G, D Ascola A, Scuruchi M, Mandraffino G, Saitta A, Campo S, Campo GM. Hyaluronan Fragmentation During Inflammatory Pathologies: A Signal that Empowers Tissue Damage. Mini Rev Med Chem 2020; 20:54-65. [PMID: 31490750 DOI: 10.2174/1389557519666190906115619] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/08/2019] [Accepted: 08/21/2019] [Indexed: 02/06/2023]
Abstract
The mechanisms that modulate the response to tissue injury are not fully understood. Abnormalities in the repair response are associated with a variety of chronic disease states characterized by inflammation, followed subsequently by excessive ECM deposition. As cell-matrix interactions are able to regulate cellular homeostasis, modification of ECM integrity appears to be an unspecific factor in promoting the onset and progression of inflammatory diseases. Evidence is emerging to show that endogenous ECM molecules supply signals to damage tissues and cells in order to promote further ECM degradation and inflammation progression. Several investigations have been confirmed that HA fragments of different molecular sizes exhibit different biological effects and responses. In fact, the increased deposition of HA into the ECM is a strong hallmark of inflammation processes. In the context of inflammatory pathologies, highly polymerized HA is broken down into small components, which are able to exacerbate the inflammatory response by inducing the release of various detrimental mediators such as reactive oxygen species, cytokines, chemokines and destructive enzymes and by facilitating the recruitment of leukocytes. However, strategies involving the modulation of the HA fragment with specific receptors on cell surface could represent different promising effects for therapeutic scope. This review will focus on the inflammation action of small HA fragments in recent years obtained by in vivo reports.
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Affiliation(s)
- Angela Avenoso
- Department of Biomedical and Dental Sciences and Morphofunctional Images, Policlinico Universitario, University of Messina, 98125 - Messina, Italy
| | - Giuseppe Bruschetta
- Department of Veterinary Sciences, University of Messina, Polo Universitario dell'Annunziata, 98168 Messina, Italy
| | - Angela D Ascola
- Department of Clinical and Experimental Medicine, University of Messina, Policlinico Universitario, 98125 - Messina, Italy
| | - Michele Scuruchi
- Department of Clinical and Experimental Medicine, University of Messina, Policlinico Universitario, 98125 - Messina, Italy
| | - Giuseppe Mandraffino
- Department of Clinical and Experimental Medicine, University of Messina, Policlinico Universitario, 98125 - Messina, Italy
| | - Antonino Saitta
- Department of Clinical and Experimental Medicine, University of Messina, Policlinico Universitario, 98125 - Messina, Italy
| | - Salvatore Campo
- Department of Biomedical and Dental Sciences and Morphofunctional Images, Policlinico Universitario, University of Messina, 98125 - Messina, Italy
| | - Giuseppe M Campo
- Department of Clinical and Experimental Medicine, University of Messina, Policlinico Universitario, 98125 - Messina, Italy
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Pedicino D, Vinci R, Giglio AF, Pisano E, Porto I, Vergallo R, Russo G, Ruggio A, D'Aiello A, Flego D, Annibali G, Trotta F, Piacentini R, Niccoli G, Liuzzo G, Crea F. Alterations of Hyaluronan Metabolism in Acute Coronary Syndrome: Implications for Plaque Erosion. J Am Coll Cardiol 2019; 72:1490-1503. [PMID: 30236312 DOI: 10.1016/j.jacc.2018.06.072] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/14/2018] [Accepted: 06/25/2018] [Indexed: 01/06/2023]
Abstract
BACKGROUND Superficial erosion currently causes at least one-third of acute coronary syndromes (ACS), and its incidence is increasing. Yet, the underlying mechanisms in humans are still largely unknown. OBJECTIVES The authors sought to assess the role of hyaluronan (HA) metabolism in ACS. METHODS Peripheral blood mononuclear cells were collected from ACS (n = 66), stable angina (SA) (n = 55), and control (CTRL) patients (n = 45). The authors evaluated: 1) gene expression of hyaluronidase 2 (HYAL2) (enzyme degrading high-molecular-weight HA to its proinflammatory 20-kDa isoform) and of CD44v1, CD44v4, and CD44v6 splicing variants of HA receptor; and 2) HYAL2 and CD44 protein expression. Moreover, they compared HYAL2 and CD44 gene expression in ACS patients with plaque erosion (intact fibrous cap and thrombus) and in ACS patients with plaque rupture, identified by optical coherence tomography analysis. RESULTS Gene expression of HYAL2, CD44v1, and CD44v6 were significantly higher in ACS as compared with SA (p = 0.003, p < 0.001, and p = 0.033, respectively) and CTRL subjects (p < 0.001, p < 0.001, and p = 0.009, respectively). HYAL2 protein expression was significantly higher in ACS than in SA (p = 0.017) and CTRL (p = 0.032), whereas no differences were found in CD44 protein expression. HYAL2 and CD44v6 gene expression was significantly higher in patients with plaque erosion than in those with plaque rupture (p = 0.015 and p = 0.029, respectively). CONCLUSIONS HYAL2 and CD44v6 splicing variants seem to play an important role in ACS, in particular when associated with plaque erosion. After further validation, HYAL2 might represent a potentially useful biomarker for the noninvasive identification of this mechanism of coronary instability.
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Affiliation(s)
- Daniela Pedicino
- Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Ramona Vinci
- Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Ada F Giglio
- Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Eugenia Pisano
- Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Italo Porto
- Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Rocco Vergallo
- Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Giulio Russo
- Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Aureliano Ruggio
- Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Alessia D'Aiello
- Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Davide Flego
- Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Gianmarco Annibali
- Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Francesco Trotta
- Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Roberto Piacentini
- Institute of Human Physiology, Catholic University of the Sacred Heart, IRCCS-Fondazione Policlinico Universitario A. Gemelli, Rome, Italy
| | - Giampaolo Niccoli
- Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
| | - Giovanna Liuzzo
- Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy.
| | - Filippo Crea
- Department of Cardiovascular and Thoracic Sciences, Catholic University of the Sacred Heart, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, IRCCS, Rome, Italy
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Gugatschka M, Darnhofer B, Grossmann T, Schittmayer M, Hortobagyi D, Kirsch A, Karpf E, Brcic L, Birner-Gruenberger R, Karbiener M. Proteomic Analysis of Vocal Fold Fibroblasts Exposed to Cigarette Smoke Extract: Exploring the Pathophysiology of Reinke's Edema. Mol Cell Proteomics 2019; 18:1511-1525. [PMID: 31123107 PMCID: PMC6683006 DOI: 10.1074/mcp.ra119.001272] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 05/17/2019] [Indexed: 11/06/2022] Open
Abstract
Reinke's edema is a smoking-associated, benign, mostly bilateral lesion of the vocal folds leading to difficulties in breathing and voice problems. Pronounced histological changes such as damaged microvessels or immune cell infiltration have been described in the vocal fold connective tissue, the lamina propria Thus, vocal fold fibroblasts, the main cell type of the lamina propria, have been postulated to play a critical role in disease mediation. Yet information about the pathophysiology is still scarce and treatment is only surgical, i.e. symptomatic. To explore the pathophysiology of Reinke's edema, we exposed near-primary human vocal fold fibroblasts to medium conditioned with cigarette smoke extract for 24 h as well as 4 days followed by quantitative mass spectrometry.Proteomic analyses after 24 h revealed that cigarette smoke increased proteins previously described to be involved in oxidative stress responses in other contexts. Correspondingly, gene sets linked to metabolism of xenobiotics and reactive oxygen species were significantly enriched among cigarette smoke-induced proteins. Among the proteins most downregulated by cigarette smoke, we identified fibrillar collagens COL1A1 and COL1A2; this reduction was validated by complementary methods. Further, we found a significant increase of UDP-glucose 6-dehydrogenase, generating a building block for biosynthesis of hyaluronan, another crucial component of the vocal fold lamina propria In line with this result, hyaluronan levels were significantly increased because of cigarette smoke exposure. Long term treatment of 4 days did not lead to significant changes.The current findings corroborate previous studies but also reveal new insights in possible disease mechanisms of Reinke's edema. We postulate that changes in the composition of the vocal folds' extracellular matrix -reduction of collagen fibrils, increase of hyaluronan- may lead to the clinical findings. This might ease the identification of better, disease-specific treatment options.
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Affiliation(s)
- Markus Gugatschka
- ‡Division of Phoniatrics, Medical University of Graz, Graz, Austria.
| | - Barbara Darnhofer
- ¶Omics Center Graz, BioTechMed-Graz, Graz, Austria; ‖Austrian Center of Industrial Biotechnology, Graz, Austria
| | - Tanja Grossmann
- ‡Division of Phoniatrics, Medical University of Graz, Graz, Austria
| | - Matthias Schittmayer
- §Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria; ¶Omics Center Graz, BioTechMed-Graz, Graz, Austria; ‖Austrian Center of Industrial Biotechnology, Graz, Austria
| | - David Hortobagyi
- ‡Division of Phoniatrics, Medical University of Graz, Graz, Austria
| | - Andrijana Kirsch
- ‡Division of Phoniatrics, Medical University of Graz, Graz, Austria
| | - Eva Karpf
- **Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Luka Brcic
- **Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Ruth Birner-Gruenberger
- §Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria; ¶Omics Center Graz, BioTechMed-Graz, Graz, Austria; ‖Austrian Center of Industrial Biotechnology, Graz, Austria; **Diagnostic and Research Institute of Pathology, Medical University of Graz, Graz, Austria
| | - Michael Karbiener
- ‡Division of Phoniatrics, Medical University of Graz, Graz, Austria; §§Takeda, Vienna, Austria
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12
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Collum SD, Molina JG, Hanmandlu A, Bi W, Pedroza M, Mertens TCJ, Wareing N, Wei W, Wilson C, Sun W, Rajadas J, Bollyky PL, Philip KM, Ren D, Thandavarayan RA, Bruckner BA, Xia Y, Blackburn MR, Karmouty-Quintana H. Adenosine and hyaluronan promote lung fibrosis and pulmonary hypertension in combined pulmonary fibrosis and emphysema. Dis Model Mech 2019; 12:dmm.038711. [PMID: 31036697 PMCID: PMC6550050 DOI: 10.1242/dmm.038711] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 04/10/2019] [Indexed: 01/06/2023] Open
Abstract
Combined pulmonary fibrosis and emphysema (CPFE) is a syndrome that predominantly affects male smokers or ex-smokers and it has a mortality rate of 55% and a median survival of 5 years. Pulmonary hypertension (PH) is a frequently fatal complication of CPFE. Despite this dismal prognosis, no curative therapies exist for patients with CPFE outside of lung transplantation and no therapies are recommended to treat PH. This highlights the need to develop novel treatment approaches for CPFE. Studies from our group have demonstrated that both adenosine and its receptor ADORA2B are elevated in chronic lung diseases. Activation of ADORA2B leads to elevated levels of hyaluronan synthases (HAS) and increased hyaluronan, a glycosaminoglycan that contributes to chronic lung injury. We hypothesize that ADORA2B and hyaluronan contribute to CPFE. Using isolated CPFE lung tissue, we characterized expression levels of ADORA2B and HAS. Next, using a unique mouse model of experimental lung injury that replicates features of CPFE, namely airspace enlargement, PH and fibrotic deposition, we investigated whether 4MU, a HAS inhibitor, was able to inhibit features of CPFE. Increased protein levels of ADORA2B and HAS3 were detected in CPFE and in our experimental model of CPFE. Treatment with 4MU was able to attenuate PH and fibrosis but not airspace enlargement. This was accompanied by a reduction of HAS3-positive macrophages. We have generated pre-clinical data demonstrating the capacity of 4MU, an FDA-approved drug, to attenuate features of CPFE in an experimental model of chronic lung injury. This article has an associated First Person interview with the first author of the paper. Summary: Fibrotic deposition and PH are inhibited by the FDA-approved drug hymecromone, suggesting hyaluronan synthesis inhibition as a potential therapy for CPFE and highlighting a novel mechanism through HAS3-positive macrophages.
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Affiliation(s)
- Scott D Collum
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Jose G Molina
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Ankit Hanmandlu
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Weizhen Bi
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Mesias Pedroza
- Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Tinne C J Mertens
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Nancy Wareing
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Wang Wei
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Cory Wilson
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Wenchao Sun
- Biomaterials and Advanced Drug Delivery Lab, Stanford University School of Medicine, Stanford, CA 94304, USA
| | - Jayakumar Rajadas
- Biomaterials and Advanced Drug Delivery Lab, Stanford University School of Medicine, Stanford, CA 94304, USA
| | - Paul L Bollyky
- Division of Infectious Diseases, Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Kemly M Philip
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Dewei Ren
- Houston Methodist DeBakey Transplant Center, Houston Methodist Hospital, Houston, TX 77030, USA
| | | | - Brian A Bruckner
- Houston Methodist DeBakey Transplant Center, Houston Methodist Hospital, Houston, TX 77030, USA
| | - Yang Xia
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Michael R Blackburn
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Harry Karmouty-Quintana
- Department of Biochemistry and Molecular Biology, McGovern Medical School, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
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13
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Papakonstantinou E, Bonovolias I, Roth M, Tamm M, Schumann D, Baty F, Louis R, Milenkovic B, Boersma W, Stieltjes B, Kostikas K, Blasi F, Aerts JG, Rohde GGU, Lacoma A, Torres A, Welte T, Stolz D. Serum levels of hyaluronic acid are associated with COPD severity and predict survival. Eur Respir J 2019; 53:13993003.01183-2018. [PMID: 30705130 DOI: 10.1183/13993003.01183-2018] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Accepted: 12/10/2018] [Indexed: 11/05/2022]
Abstract
Hyaluronic acid (HA) and its degradation products play an important role in lung pathophysiology and airway remodelling in chronic obstructive pulmonary disease (COPD).We investigated if HA and its degrading enzyme hyaluronidase (HYAL)-1 are associated with COPD severity and outcome.Serum HA was assessed in a discovery cohort of 80 COPD patients at stable state and exacerbations. HA, HYAL-1 and HYAL-1 enzymatic activity were evaluated at stable state, exacerbations and 4 weeks after exacerbations in 638 COPD patients from the PROMISE validation cohort.In the discovery cohort, serum HA was higher at exacerbations compared with the stable state (p=0.015). In the validation cohort, HA was higher at moderate and severe exacerbations than at baseline (p<0.001), and remained higher after 4 weeks (p<0.001). HA was strongly predictive for overall survival since it was associated with time to death (p<0.001) independently of adjusted Charlson score, annual exacerbation rate and BODE (body mass, airflow obstruction, dyspnoea, exercise capacity) index. Serum HYAL-1 was increased at moderate (p=0.004) and severe (p=0.003) exacerbations, but decreased after 4 weeks (p<0.001). HYAL-1 enzymatic activity at stable state was inversely correlated with FEV1 % pred (p=0.034) and survival time (p=0.017).Serum HA is associated with COPD severity and predicts overall survival. Degradation of HA is associated with airflow limitation and impairment of lung function.
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Affiliation(s)
- Eleni Papakonstantinou
- Clinic of Pulmonary Medicine and Respiratory Cell Research, University Hospital, Basel, Switzerland.,Dept of Pharmacology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Ioannis Bonovolias
- Dept of Pharmacology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Michael Roth
- Clinic of Pulmonary Medicine and Respiratory Cell Research, University Hospital, Basel, Switzerland
| | - Michael Tamm
- Clinic of Pulmonary Medicine and Respiratory Cell Research, University Hospital, Basel, Switzerland
| | - Desiree Schumann
- Clinic of Pulmonary Medicine and Respiratory Cell Research, University Hospital, Basel, Switzerland
| | - Florent Baty
- Pneumology, Kantonsspital St Gallen, St Gallen, Switzerland
| | - Renaud Louis
- Dept of Pneumology, CHU Liege, University of Liege, GIGAI Research Group, Liege, Belgium
| | - Branislava Milenkovic
- Faculty of Medicine, University of Belgrade Clinic for Pulmonary Diseases, Belgrade, Serbia
| | - Wim Boersma
- Dept of Pneumology, Medisch Centrum Alkmaar, Alkmaar, The Netherlands
| | - Bram Stieltjes
- Clinic of Radiology and Nuclear Medicine, University Hospital Basel, Basel, Switzerland
| | - Konstantinos Kostikas
- Clinic of Pulmonary Medicine and Respiratory Cell Research, University Hospital, Basel, Switzerland
| | - Francesco Blasi
- Internal Medicine Dept, Respiratory Unit and Adult Cystic Fibrosis Center Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico Milano, Dept of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy
| | - Joachim G Aerts
- Dept of Pneumology, Amphia Hospital/Erasmus MC, Breda, The Netherlands
| | - Gernot G U Rohde
- Dept of Respiratory Medicine, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Alicia Lacoma
- Dept of Microbiology, Hospital Universitari Germans Trias i Pujol, CIBER Enfermedades Respiratorias, Badalona, Spain
| | - Antoni Torres
- Dept of Pneumology, Hospital Clinic, Barcelona, Spain
| | - Tobias Welte
- Dept of Pneumology, Medizinische Hochschule Hannover, Hannover, Germany
| | - Daiana Stolz
- Clinic of Pulmonary Medicine and Respiratory Cell Research, University Hospital, Basel, Switzerland
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14
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Olsson M, Bremer L, Aulin C, Harris HE. Fragmented hyaluronan has no alarmin function assessed in arthritis synovial fibroblast and chondrocyte cultures. Innate Immun 2018; 24:131-141. [PMID: 29495940 PMCID: PMC6830895 DOI: 10.1177/1753425918759590] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 01/12/2018] [Accepted: 01/19/2018] [Indexed: 12/11/2022] Open
Abstract
Hyaluronan (HA) is a large polymer and an important component of the extracellular matrix. During homeostasis, high molecular mass HA is the predominant form, but upon inflammation, degradation products of HA accumulate. These HA fragments (HA-fs) have been reported to possess pro-inflammatory activities and thus act as alarmins, notifying immune cells of danger via TLR4 and CD44. HA is found in large quantities in synovial joint fluid. In order to reveal a potential role of HA-fs in arthritis pathogenesis, the in vitro effects of HA of various molecular masses (from 1680 kDa to oligosaccharide HA) on synovial fibroblasts and chondrocytes from rheumatoid arthritis patients, and on peripheral blood mononuclear cells from healthy donors, were investigated. TLR4 and CD44 surface expression was confirmed by immunocytochemistry, and cell activation was determined based on cytokine and chemokine production. While the cell types investigated expressed TLR4 and CD44, no increased release of IL-1ß, IL-6, IL-8, IL-10, IL-12 or TNF-α was detected after HA stimulation. Similarly, HA did not enhance activation after priming cells with low doses of LPS or by forming complexes with LPS. Hence, this study does not support the common view of HA-fs being pro-inflammatory mediators and it is not likely that HA-fs generated during arthritis contribute to disease pathogenesis.
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Affiliation(s)
- Mia Olsson
- Department of Medicine, Karolinska Institutet,
Sweden
| | - Lisa Bremer
- Department of Medicine, Karolinska Institutet,
Sweden
| | - Cecilia Aulin
- Department of Medicine, Karolinska Institutet,
Sweden
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15
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Stober VP, Johnson CG, Majors A, Lauer ME, Cali V, Midura RJ, Wisniewski HG, Aronica MA, Garantziotis S. TNF-stimulated gene 6 promotes formation of hyaluronan-inter-α-inhibitor heavy chain complexes necessary for ozone-induced airway hyperresponsiveness. J Biol Chem 2017; 292:20845-20858. [PMID: 29122888 DOI: 10.1074/jbc.m116.756627] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 10/27/2017] [Indexed: 11/06/2022] Open
Abstract
Exposure to pollutants, such as ozone, exacerbates airway inflammation and hyperresponsiveness (AHR). TNF-stimulated gene 6 (TSG-6) is required to transfer inter-α-inhibitor heavy chains (HC) to hyaluronan (HA), facilitating HA receptor binding. TSG-6 is necessary for AHR in allergic asthma, because it facilitates the development of a pathological HA-HC matrix. However, the role of TSG-6 in acute airway inflammation is not well understood. Here, we hypothesized that TSG-6 is essential for the development of HA- and ozone-induced AHR. TSG-6-/- and TSG-6+/+ mice were exposed to ozone or short-fragment HA (sHA), and AHR was assayed via flexiVent. The AHR response to sHA was evaluated in the isolated tracheal ring assay in tracheal rings from TSG-6-/- or TSG-6+/+, with or without the addition of exogenous TSG-6, and with or without inhibitors of Rho-associated, coiled-coil-containing protein kinase (ROCK), ERK, or PI3K. Smooth-muscle cells from mouse tracheas were assayed in vitro for signaling pathways. We found that TSG-6 deficiency protects against AHR after ozone (in vivo) or sHA (in vitro and in vivo) exposure. Moreover, TSG-6-/- tracheal ring non-responsiveness to sHA was reversed by exogenous TSG-6 addition. sHA rapidly activated RhoA, ERK, and Akt in airway smooth-muscle cells, but only in the presence of TSG-6. Inhibition of ROCK, ERK, or PI3K/Akt blocked sHA/TSG-6-mediated AHR. In conclusion, TSG-6 is necessary for AHR in response to ozone or sHA, in part because it facilitates rapid formation of HA-HC complexes. The sHA/TSG-6 effect is mediated by RhoA, ERK, and PI3K/Akt signaling.
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Affiliation(s)
- Vandy P Stober
- From the Immunity Inflammation and Disease Laboratory, NIEHS, National Institutes of Health, Research Triangle Park, North Carolina 27709
| | - Collin G Johnson
- From the Immunity Inflammation and Disease Laboratory, NIEHS, National Institutes of Health, Research Triangle Park, North Carolina 27709
| | - Alana Majors
- the Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio 44195, and
| | - Mark E Lauer
- the Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio 44195, and
| | - Valbona Cali
- the Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio 44195, and
| | - Ronald J Midura
- the Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio 44195, and
| | | | - Mark A Aronica
- the Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio 44195, and
| | - Stavros Garantziotis
- From the Immunity Inflammation and Disease Laboratory, NIEHS, National Institutes of Health, Research Triangle Park, North Carolina 27709,
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16
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Kulkarni T, O'Reilly P, Antony VB, Gaggar A, Thannickal VJ. Matrix Remodeling in Pulmonary Fibrosis and Emphysema. Am J Respir Cell Mol Biol 2017; 54:751-60. [PMID: 26741177 DOI: 10.1165/rcmb.2015-0166ps] [Citation(s) in RCA: 87] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Pulmonary fibrosis and emphysema are chronic lung diseases characterized by a progressive decline in lung function, resulting in significant morbidity and mortality. A hallmark of these diseases is recurrent or persistent alveolar epithelial injury, typically caused by common environmental exposures such as cigarette smoke. We propose that critical determinants of the outcome of the injury-repair processes that result in fibrosis versus emphysema are mesenchymal cell fate and associated extracellular matrix dynamics. In this review, we explore the concept that regulation of mesenchymal cells under the influence of soluble factors, in particular transforming growth factor-β1, and the extracellular matrix determine the divergent tissue remodeling responses seen in pulmonary fibrosis and emphysema.
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Affiliation(s)
- Tejaswini Kulkarni
- 1 Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama.,2 Program in Protease and Matrix Biology Center, Birmingham, Alabama; and
| | - Philip O'Reilly
- 1 Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama.,2 Program in Protease and Matrix Biology Center, Birmingham, Alabama; and
| | - Veena B Antony
- 1 Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama.,2 Program in Protease and Matrix Biology Center, Birmingham, Alabama; and
| | - Amit Gaggar
- 1 Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama.,2 Program in Protease and Matrix Biology Center, Birmingham, Alabama; and.,3 Birmingham VA Medical Center, Birmingham, Alabama
| | - Victor J Thannickal
- 1 Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, University of Alabama at Birmingham, Birmingham, Alabama.,2 Program in Protease and Matrix Biology Center, Birmingham, Alabama; and.,3 Birmingham VA Medical Center, Birmingham, Alabama
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17
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Abstract
Pulmonary emphysema is one of the distinct pathological forms of chronic obstructive pulmonary disease (COPD) that is accompanied by gradual elimination of alveolar tissue, causing reductions in lung recoil and leading to difficulty in breathing. As there is no cure for emphysema, animal models are often used to better understand the pathogenesis and progression of the disease. One widely used animal model of emphysema is the elastase treatment. In this chapter, we describe two methods of elastase-induced emphysema in mice. The first is a single-dose treatment, whereby elastase is introduced oropharengeally into the lung and the structure and/or function of the lungs are studied between 2 days and 4 weeks following the treatment. The second method consists of exposing mice repeatedly (four times) to elastase intratracheally and observing the effects of the treatment 1-4 weeks following the last administration of the enzyme. Both protocols are described in detail, and examples of lung structure and function of the emphysematous mouse lung are provided.
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Affiliation(s)
- Béla Suki
- Department of Biomedical Engineering, Boston University, Boston, MA, USA.
| | | | - Patricia R M Rocco
- Laboratory of Pulmonary Investigation, Carlos Chagas Filho Institute of Biophysics, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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18
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Dong Y, Arif A, Olsson M, Cali V, Hardman B, Dosanjh M, Lauer M, Midura RJ, Hascall VC, Brown KL, Johnson P. Endotoxin free hyaluronan and hyaluronan fragments do not stimulate TNF-α, interleukin-12 or upregulate co-stimulatory molecules in dendritic cells or macrophages. Sci Rep 2016; 6:36928. [PMID: 27869206 PMCID: PMC5116629 DOI: 10.1038/srep36928] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 10/24/2016] [Indexed: 12/24/2022] Open
Abstract
The extracellular matrix glycosaminoglycan, hyaluronan, has been described as a regulator of tissue inflammation, with hyaluronan fragments reported to stimulate innate immune cells. High molecular mass hyaluronan is normally present in tissues, but upon inflammation lower molecular mass fragments are generated. It is unclear if these hyaluronan fragments induce an inflammatory response or are a consequence of inflammation. In this study, mouse bone marrow derived macrophages and dendritic cells (DCs) were stimulated with various sizes of hyaluronan from different sources, fragmented hyaluronan, hyaluronidases and heavy chain modified-hyaluronan (HA-HC). Key pro-inflammatory molecules, tumour necrosis factor alpha, interleukin-1 beta, interleukin-12, CCL3, and the co-stimulatory molecules, CD40 and CD86 were measured. Only human umbilical cord hyaluronan, bovine testes and Streptomyces hyaluronlyticus hyaluronidase stimulated macrophages and DCs, however, these reagents were found to be contaminated with endotoxin, which was not fully removed by polymyxin B treatment. In contrast, pharmaceutical grade hyaluronan and hyaluronan fragments failed to stimulate in vitro-derived or ex vivo macrophages and DCs, and did not induce leukocyte recruitment after intratracheal instillation into mouse lungs. Hence, endotoxin-free pharmaceutical grade hyaluronan does not stimulate macrophages and DCs in our inflammatory models. These results emphasize the importance of ensuring hyaluronan preparations are endotoxin free.
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Affiliation(s)
- Yifei Dong
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, B.C. V6T 1Z3, Canada
| | - Arif Arif
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, B.C. V6T 1Z3, Canada
| | - Mia Olsson
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, B.C. V6T 1Z3, Canada.,Department of Pediatrics, British Columbia Children's Hospital Research Institute, Vancouver, B.C. Canada
| | - Valbona Cali
- Department of Biomedical Engineering, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio 44195, U.S.A
| | - Blair Hardman
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, B.C. V6T 1Z3, Canada
| | - Manisha Dosanjh
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, B.C. V6T 1Z3, Canada
| | - Mark Lauer
- Department of Biomedical Engineering, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio 44195, U.S.A
| | - Ronald J Midura
- Department of Biomedical Engineering, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio 44195, U.S.A
| | - Vincent C Hascall
- Department of Biomedical Engineering, Cleveland Clinic Lerner Research Institute, Cleveland, Ohio 44195, U.S.A
| | - Kelly L Brown
- Department of Pediatrics, British Columbia Children's Hospital Research Institute, Vancouver, B.C. Canada
| | - Pauline Johnson
- Department of Microbiology and Immunology, University of British Columbia, Vancouver, B.C. V6T 1Z3, Canada
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19
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Hyaluronan in Human Vocal Folds in Smokers and Nonsmokers—A Histochemical Study. J Voice 2016; 30:255-62. [DOI: 10.1016/j.jvoice.2015.05.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 05/14/2015] [Indexed: 11/27/2022]
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20
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Effect of High, Medium, and Low Molecular Weight Hyaluronan on Inflammation and Oxidative Stress in an In Vitro Model of Human Nasal Epithelial Cells. Mediators Inflamm 2016; 2016:8727289. [PMID: 27212811 PMCID: PMC4860232 DOI: 10.1155/2016/8727289] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 03/30/2016] [Indexed: 02/02/2023] Open
Abstract
IL-17A is involved in the activation of oxidative stress and inflammation in nasal epithelial cells. Hyaluronan (HA) in its high molecular weight form (HMW-HA) shows anti-inflammatory responses in contrast to low and medium molecular weight HA (LMW-HA and MMW-HA). The aim of this study was to investigate the pro- or anti-inflammatory biologic function of HA at different molecular weight in an in vitro model of nasal inflammation IL-17A mediated. We evaluated the ERK1/2 and IκBα phosphorylation, NF-κB signal pathway activation, ROS production, IL-8 and NOX-4 protein, and mRNA levels, in nasal epithelial cells RPMI 2650 stimulated with recombinant human (rh) IL-17A. Furthermore, the cells were treated with HMW-HA, MMW-HA, LMW-HA, and U0126. Our results showed that rhIL-17A increased the ERK1/2, IκBα phosphorylation and NF-κB signal pathway activation, ROS production, IL-8 and NOX-4 proteins, and mRNA levels. The addiction of HMW-HA or U0126 showed a significant downregulatory effect on inflammation due to the rhIL-17A stimulation in nasal epithelial cells. IL-17A is able to generate oxidative stress and inflammation via the activation of ERK1/2/NF-κB pathway in nasal epithelial cells. The HMW-HA might represent a coadjuvant of the classic anti-inflammatory/antioxidative treatment of nasal epithelial cells during IL-17A nasal inflammation.
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21
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Kumar S, Lanckacker E, Dentener M, Bracke K, Provoost S, De Grove K, Brusselle G, Wouters E, Maes T, Joos G. Aggravation of Allergic Airway Inflammation by Cigarette Smoke in Mice Is CD44-Dependent. PLoS One 2016; 11:e0151113. [PMID: 26999446 PMCID: PMC4801229 DOI: 10.1371/journal.pone.0151113] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 02/22/2016] [Indexed: 01/10/2023] Open
Abstract
Background Although epidemiological studies reveal that cigarette smoke (CS) facilitates the development and exacerbation of allergic asthma, these studies offer limited information on the mechanisms involved. The transmembrane glycoprotein CD44 is involved in cell adhesion and acts as a receptor for hyaluronic acid and osteopontin. We aimed to investigate the role of CD44 in a murine model of CS-facilitated allergic airway inflammation. Methods Wild type (WT) and CD44 knock-out (KO) mice were exposed simultaneously to house dust mite (HDM) extract and CS. Inflammatory cells, hyaluronic acid (HA) and osteopontin (OPN) levels were measured in bronchoalveolar lavage fluid (BALF). Proinflammatory mediators, goblet cell metaplasia and peribronchial eosinophilia were assessed in lung tissue. T-helper (Th) 1, Th2 and Th17 cytokine production was evaluated in mediastinal lymph node cultures. Results In WT mice, combined HDM/CS exposure increased the number of inflammatory cells and the levels of HA and OPN in BALF and Th2 cytokine production in mediastinal lymph nodes compared to control groups exposed to phosphate buffered saline (PBS)/CS, HDM/Air or PBS/Air. Furthermore, HDM/CS exposure significantly increased goblet cell metaplasia, peribronchial eosinophilia and inflammatory mediators in the lung. CD44 KO mice exposed to HDM/CS had significantly fewer inflammatory cells in BALF, an attenuated Th2 cytokine production, as well as decreased goblet cells and peribronchial eosinophils compared to WT mice. In contrast, the levels of inflammatory mediators were similar or higher than in WT mice. Conclusion We demonstrate for the first time that the aggravation of pulmonary inflammation upon combined exposure to allergen and an environmental pollutant is CD44-dependent. Data from this murine model of concomitant exposure to CS and HDM might be of importance for smoking allergic asthmatics.
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Affiliation(s)
- Smitha Kumar
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Ellen Lanckacker
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Mieke Dentener
- Nutrition and Toxicology Research Institute Maastricht (NUTRIM), Department of Respiratory Medicine, University Hospital Maastricht, Maastricht, The Netherlands
| | - Ken Bracke
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Sharen Provoost
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Katrien De Grove
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Guy Brusselle
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
| | - Emiel Wouters
- Nutrition and Toxicology Research Institute Maastricht (NUTRIM), Department of Respiratory Medicine, University Hospital Maastricht, Maastricht, The Netherlands
| | - Tania Maes
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
- * E-mail:
| | - Guy Joos
- Department of Respiratory Medicine, Laboratory for Translational Research in Obstructive Pulmonary Diseases, Ghent University Hospital, Ghent, Belgium
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22
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Liang J, Jiang D, Noble PW. Hyaluronan as a therapeutic target in human diseases. Adv Drug Deliv Rev 2016; 97:186-203. [PMID: 26541745 PMCID: PMC4753080 DOI: 10.1016/j.addr.2015.10.017] [Citation(s) in RCA: 146] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Revised: 10/19/2015] [Accepted: 10/20/2015] [Indexed: 02/07/2023]
Abstract
Accumulation and turnover of extracellular matrix is a hallmark of tissue injury, repair and remodeling in human diseases. Hyaluronan is a major component of the extracellular matrix and plays an important role in regulating tissue injury and repair, and controlling disease outcomes. The function of hyaluronan depends on its size, location, and interactions with binding partners. While fragmented hyaluronan stimulates the expression of an array of genes by a variety of cell types regulating inflammatory responses and tissue repair, cell surface hyaluronan provides protection against tissue damage from the environment and promotes regeneration and repair. The interactions of hyaluronan and its binding proteins participate in the pathogenesis of many human diseases. Thus, targeting hyaluronan and its interactions with cells and proteins may provide new approaches to developing therapeutics for inflammatory and fibrosing diseases. This review focuses on the role of hyaluronan in biological and pathological processes, and as a potential therapeutic target in human diseases.
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Affiliation(s)
- Jiurong Liang
- Department of Medicine and Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Dianhua Jiang
- Department of Medicine and Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA
| | - Paul W Noble
- Department of Medicine and Women's Guild Lung Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048, USA.
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Garantziotis S, Brezina M, Castelnuovo P, Drago L. The role of hyaluronan in the pathobiology and treatment of respiratory disease. Am J Physiol Lung Cell Mol Physiol 2016; 310:L785-95. [PMID: 26747781 DOI: 10.1152/ajplung.00168.2015] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Accepted: 01/05/2016] [Indexed: 12/11/2022] Open
Abstract
Hyaluronan, a ubiquitous naturally occurring glycosaminoglycan, is a major component of the extracellular matrix, where it participates in biological processes that include water homeostasis, cell-matrix signaling, tissue healing, inflammation, angiogenesis, and cell proliferation and migration. There are emerging data that hyaluronan and its degradation products have an important role in the pathobiology of the respiratory tract. We review the role of hyaluronan in respiratory diseases and present evidence from published literature and from clinical practice supporting hyaluronan as a novel treatment for respiratory diseases. Preliminary data show that aerosolized exogenous hyaluronan has beneficial activity against airway inflammation, protects against bronchial hyperreactivity and remodeling, and disrupts the biofilm associated with chronic infection. This suggests a role in airway diseases with a predominant inflammatory component such as rhinosinusitis, asthma, chronic obstructive pulmonary disease, cystic fibrosis, and primary ciliary dyskinesia. The potential for hyaluronan to complement conventional therapy will become clearer when data are available from controlled trials in larger patient populations.
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Affiliation(s)
- Stavros Garantziotis
- Clinical Research Program, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, North Carolina;
| | - Martin Brezina
- Clinic of Pediatric Pneumology and Phthisiology, University Hospital Bratislava, Bratislava, Slovakia
| | - Paolo Castelnuovo
- Department of Otorhinolaryngology-Head and Neck Surgery, University of Insubria, Ospedale di Circolo, Fondazione Macchi, Varese, Italy; and
| | - Lorenzo Drago
- Laboratory of Clinical Chemistry and Microbiology, IRCCS Galeazzi Orthopaedic Institute, Department of Biomedical Sciences for Health, University of Milan, Milan, Italy
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24
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The Rise and Fall of Hyaluronan in Respiratory Diseases. Int J Cell Biol 2015; 2015:712507. [PMID: 26448757 PMCID: PMC4581576 DOI: 10.1155/2015/712507] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2014] [Revised: 02/11/2015] [Accepted: 05/03/2015] [Indexed: 12/24/2022] Open
Abstract
In normal airways, hyaluronan (HA) matrices are primarily located within the airway submucosa, pulmonary vasculature walls, and, to a lesser extent, the alveoli. Following pulmonary injury, elevated levels of HA matrices accumulate in these regions, and in respiratory secretions, correlating with the extent of injury. Animal models have provided important insight into the role of HA in the onset of pulmonary injury and repair, generally indicating that the induction of HA synthesis is an early event typically preceding fibrosis. The HA that accumulates in inflamed airways is of a high molecular weight (>1600 kDa) but can be broken down into smaller fragments (<150 kDa) by inflammatory and disease-related mechanisms that have profound effects on HA pathobiology. During inflammation in the airways, HA is often covalently modified with heavy chains from inter-alpha-inhibitor via the enzyme tumor-necrosis-factor-stimulated-gene-6 (TSG-6) and this modification promotes the interaction of leukocytes with HA matrices at sites of inflammation. The clearance of HA and its return to normal levels is essential for the proper resolution of inflammation. These data portray HA matrices as an important component of normal airway physiology and illustrate its integral roles during tissue injury and repair among a variety of respiratory diseases.
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Monslow J, Govindaraju P, Puré E. Hyaluronan - a functional and structural sweet spot in the tissue microenvironment. Front Immunol 2015; 6:231. [PMID: 26029216 PMCID: PMC4432798 DOI: 10.3389/fimmu.2015.00231] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2015] [Accepted: 04/29/2015] [Indexed: 12/13/2022] Open
Abstract
Transition from homeostatic to reactive matrix remodeling is a fundamental adaptive tissue response to injury, inflammatory disease, fibrosis, and cancer. Alterations in architecture, physical properties, and matrix composition result in changes in biomechanical and biochemical cellular signaling. The dynamics of pericellular and extracellular matrices, including matrix protein, proteoglycan, and glycosaminoglycan modification are continually emerging as essential regulatory mechanisms underlying cellular and tissue function. Nevertheless, the impact of matrix organization on inflammation and immunity in particular and the consequent effects on tissue healing and disease outcome are arguably under-studied aspects of adaptive stress responses. Herein, we review how the predominant glycosaminoglycan hyaluronan (HA) contributes to the structure and function of the tissue microenvironment. Specifically, we examine the evidence of HA degradation and the generation of biologically active smaller HA fragments in pathological settings in vivo. We discuss how HA fragments versus nascent HA via alternate receptor-mediated signaling influence inflammatory cell recruitment and differentiation, resident cell activation, as well as tumor growth, survival, and metastasis. Finally, we discuss how HA fragmentation impacts restoration of normal tissue function and pathological outcomes in disease.
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Affiliation(s)
- James Monslow
- Department of Biomedical Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Priya Govindaraju
- Department of Biomedical Sciences, University of Pennsylvania, Philadelphia, PA, USA
| | - Ellen Puré
- Department of Biomedical Sciences, University of Pennsylvania, Philadelphia, PA, USA
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26
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Lee-Sayer SSM, Dong Y, Arif AA, Olsson M, Brown KL, Johnson P. The where, when, how, and why of hyaluronan binding by immune cells. Front Immunol 2015; 6:150. [PMID: 25926830 PMCID: PMC4396519 DOI: 10.3389/fimmu.2015.00150] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2015] [Accepted: 03/20/2015] [Indexed: 01/04/2023] Open
Abstract
Hyaluronan is made and extruded from cells to form a pericellular or extracellular matrix (ECM) and is present in virtually all tissues in the body. The size and form of hyaluronan present in tissues are indicative of a healthy or inflamed tissue, and the interactions of hyaluronan with immune cells can influence their response. Thus, in order to understand how inflammation is regulated, it is necessary to understand these interactions and their consequences. Although there is a large turnover of hyaluronan in our bodies, the large molecular mass form of hyaluronan predominates in healthy tissues. Upon tissue damage and/or infection, the ECM and hyaluronan are broken down and an inflammatory response ensues. As inflammation is resolved, the ECM is restored, and high molecular mass hyaluronan predominates again. Immune cells encounter hyaluronan in the tissues and lymphoid organs and respond differently to high and low molecular mass forms. Immune cells differ in their ability to bind hyaluronan and this can vary with the cell type and their activation state. For example, peritoneal macrophages do not bind soluble hyaluronan but can be induced to bind after exposure to inflammatory stimuli. Likewise, naïve T cells, which typically express low levels of the hyaluronan receptor, CD44, do not bind hyaluronan until they undergo antigen-stimulated T cell proliferation and upregulate CD44. Despite substantial knowledge of where and when immune cells bind hyaluronan, why immune cells bind hyaluronan remains a major outstanding question. Here, we review what is currently known about the interactions of hyaluronan with immune cells in both healthy and inflamed tissues and discuss how hyaluronan binding by immune cells influences the inflammatory response.
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Affiliation(s)
- Sally S M Lee-Sayer
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia , Vancouver, BC , Canada
| | - Yifei Dong
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia , Vancouver, BC , Canada
| | - Arif A Arif
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia , Vancouver, BC , Canada
| | - Mia Olsson
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia , Vancouver, BC , Canada
| | - Kelly L Brown
- Department of Pediatrics, Child and Family Research Institute, University of British Columbia , Vancouver, BC , Canada
| | - Pauline Johnson
- Department of Microbiology and Immunology, Life Sciences Institute, University of British Columbia , Vancouver, BC , Canada
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27
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Yan H, Zhao L, Wu X, Liu H, Wu C, Li Y, Zheng W, Jiang H. Inflammation and pathological damage to the lungs of mice are only partially reversed following smoking cessation on subacute exposure to cigarette smoke. Mol Med Rep 2015; 11:4246-54. [PMID: 25672547 PMCID: PMC4394953 DOI: 10.3892/mmr.2015.3337] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Accepted: 01/21/2015] [Indexed: 02/07/2023] Open
Abstract
The present study aimed to observe the level of inflammation and the number of lesions in the airways and parenchyma of mouse lungs subsequent to smoking cessation following 4 weeks exposure to cigarette smoke. Enlargement of the regional airspaces, deposition of peribronchial collagen fibers and macrophage infiltration were assessed. In addition, the expression levels of matrix metalloproteinase (MMP)‑12 and transforming growth factor (TGF)‑β1 were detected in the airways and lung parenchyma of C57BL/6 J mice. Mice, which were exposed to filtered air for 4 weeks or cigarette smoke for 8 weeks were used as control groups. A 4 week duration of smoke exposure induced the expansion of alveolar spaces ~100 µm from the terminal bronchioles, but without increased deposition of collagen around the small airways, which was not reversed following smoking cessation. Pulmonary infiltration of macrophages and the protein expression levels of MMP‑12 and TGF‑β1 increased in the airways following 4 weeks smoke exposure, however, there was no further increase at 8 weeks, and the expression levels of TGF‑β1 in the lung parenchyma decreased. At 4 weeks post‑smoking cessation, the expression levels of TGF‑β1 in the airways and lung parenchyma returned to normal; whereas, 1 week after smoking cessation, the expression levels of MMP‑12 were higher compared with the normal control group. Subacute exposure to cigarette smoke induced an inflammatory response and regional damage to the lung parenchyma, prior to deposition of collagen around the airways. Following smoking cessation, the pulmonary inflammatory reaction was partially reversed, however, macrophage infiltration and the expression levels of MMP‑12 remained significantly higher compared with the control mice. These results suggested that regulation of the expression of MMP‑12 and TGF‑β1, particularly in the distribution in the airways and lung parenchyma, may be a strategy for the early treatment of chronic obstructive pulmonary disease.
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Affiliation(s)
- Hengyi Yan
- Department of First Respiratory Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Li Zhao
- Department of First Respiratory Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Xiaojie Wu
- Department of First Respiratory Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Hongbo Liu
- Department of First Respiratory Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Cen Wu
- Department of First Respiratory Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Yu Li
- Department of First Respiratory Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Wei Zheng
- Department of First Respiratory Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
| | - Hongfang Jiang
- Department of First Respiratory Medicine, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
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28
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Anderegg U, Simon JC, Averbeck M. More than just a filler - the role of hyaluronan for skin homeostasis. Exp Dermatol 2014; 23:295-303. [PMID: 24628940 DOI: 10.1111/exd.12370] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/10/2014] [Indexed: 12/20/2022]
Abstract
In recent years, hyaluronan (HA) has become an increasingly attractive substance as a non-immunogenic filler and scaffolding material in cosmetic dermatology. Despite its wide use for skin augmentation and rejuvenation, relatively little is known about the molecular structures and interacting proteins of HA in normal and diseased skin. However, a comprehensive understanding of cutaneous HA homeostasis is required for future the development of HA-based applications for skin regeneration. This review provides an update on HA-based structures, expression, metabolism and its regulation, function and pharmacological targeting of HA in skin.
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Affiliation(s)
- Ulf Anderegg
- Department of Dermatology, Venerology and Allergology, University of Leipzig, Leipzig, Germany
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29
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Staab EB, Weigel J, Xiao F, Madayiputhiya N, Wyatt TA, Wells SM. Asymmetric dimethyl-arginine metabolism in a murine model of cigarette smoke-mediated lung inflammation. J Immunotoxicol 2014; 12:273-82. [PMID: 25913572 DOI: 10.3109/1547691x.2014.961619] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
There is increasing evidence that the endogenous nitric oxide synthase (NOS) inhibitor asymmetric dimethyl-arginine (ADMA) is involved in the pathogenesis of chronic lung diseases. One important regulator of this molecule is the ADMA-metabolizing enzyme dimethyl-arginine dimethyl-aminohydrolase (DDAH). The objective of this study was to determine whether perturbation of the ADMA-DDAH pathway contributes to lung inflammation following exposure to cigarette smoke (CS). For these studies, wild-type and DDAH transgenic mice were sham or CS-exposed. Serum ADMA levels were determined by mass spectrometry. ADMA content and DDAH expression were also visualized in mouse lung tissue by immunohistochemistry. DDAH expression was determined by real-time quantitative PCR (qPCR). Inflammation was assessed by H&E staining and analyses of total cell counts and fluid tumor necrosis factor (TNF)-α levels (using ELISA) in lung lavage fluid. NF-κB binding activity in mouse lung epithelial (LA-4) cells was assessed by a transcription factor-binding assay. The results indicated that the concentration of serum ADMA was increased following exposure to CS, and this corresponded with increased ADMA content in bronchial epithelial cells in lung tissue. Total lung DDAH expression was significantly decreased in lung tissue and cultured LA-4 cells following CS exposure. Addition of exogenous ADMA increased CSE-mediated NF-κB binding activity and TNFα production in LA-4 cells more than 2-fold compared to that in CSE-exposed controls. CS-mediated lung inflammation was significantly attenuated in DDAH transgenic mice compared to in wild-type controls. These findings demonstrated that lung ADMA metabolism was altered in mice following CS exposure and suggested that ADMA played a role in CS-mediated inflammation through increasing the presence of inflammatory mediators in lung epithelial cells.
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Affiliation(s)
- Elizabeth B Staab
- Department of Environmental, Agricultural and Occupational Health, College of Public Health, University of Nebraska Medical Center , Omaha, NE , USA
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30
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Eurlings IMJ, Reynaert NL, van den Beucken T, Gosker HR, de Theije CC, Verhamme FM, Bracke KR, Wouters EFM, Dentener MA. Cigarette smoke extract induces a phenotypic shift in epithelial cells; involvement of HIF1α in mesenchymal transition. PLoS One 2014; 9:e107757. [PMID: 25329389 PMCID: PMC4199572 DOI: 10.1371/journal.pone.0107757] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Accepted: 08/11/2014] [Indexed: 12/22/2022] Open
Abstract
In COPD, matrix remodeling contributes to airflow limitation. Recent evidence suggests that next to fibroblasts, the process of epithelial-mesenchymal transition can contribute to matrix remodeling. CSE has been shown to induce EMT in lung epithelial cells, but the signaling mechanisms involved are largely unknown and subject of this study. EMT was assessed in A549 and BEAS2B cells stimulated with CSE by qPCR, Western blotting and immunofluorescence for epithelial and mesenchymal markers, as were collagen production, cell adhesion and barrier integrity as functional endpoints. Involvement of TGF-β and HIF1α signaling pathways were investigated. In addition, mouse models were used to examine the effects of CS on hypoxia signaling and of hypoxia per se on mesenchymal expression. CSE induced EMT characteristics in A549 and BEAS2B cells, evidenced by decreased expression of epithelial markers and a concomitant increase in mesenchymal marker expression after CSE exposure. Furthermore cells that underwent EMT showed increased production of collagen, decreased adhesion and disrupted barrier integrity. The induction of EMT was found to be independent of TGF-β signaling. On the contrary, CS was able to induce hypoxic signaling in A549 and BEAS2B cells as well as in mice lung tissue. Importantly, HIF1α knock-down prevented induction of mesenchymal markers, increased collagen production and decreased adhesion after CSE exposure, data that are in line with the observed induction of mesenchymal marker expression by hypoxia in vitro and in vivo. Together these data provide evidence that both bronchial and alveolar epithelial cells undergo a functional phenotypic shift in response to CSE exposure which can contribute to increased collagen deposition in COPD lungs. Moreover, HIF1α signaling appears to play an important role in this process.
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Affiliation(s)
- Irene M. J. Eurlings
- Department of Respiratory Medicine, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Niki L. Reynaert
- Department of Respiratory Medicine, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Twan van den Beucken
- Department of Radiation Oncology, GROW School for Oncology and Developmental Biology, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Harry R. Gosker
- Department of Respiratory Medicine, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Center, Maastricht, the Netherlands
| | - C. C. de Theije
- Department of Respiratory Medicine, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Fien M. Verhamme
- Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Ken R. Bracke
- Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Emiel F. M. Wouters
- Department of Respiratory Medicine, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Center, Maastricht, the Netherlands
| | - Mieke A. Dentener
- Department of Respiratory Medicine, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Center, Maastricht, the Netherlands
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31
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Takahashi A, Majumdar A, Parameswaran H, Bartolák-Suki E, Suki B. Proteoglycans maintain lung stability in an elastase-treated mouse model of emphysema. Am J Respir Cell Mol Biol 2014; 51:26-33. [PMID: 24450478 DOI: 10.1165/rcmb.2013-0179oc] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Extracellular matrix remodeling and tissue rupture contribute to the progression of emphysema. Lung tissue elasticity is governed by the tensile stiffness of fibers and the compressive stiffness of proteoglycans. It is not known how proteoglycan remodeling affects tissue stability and destruction in emphysema. The objective of this study was to characterize the role of remodeled proteoglycans in alveolar stability and tissue destruction in emphysema. At 30 days after treatment with porcine pancreatic elastase, mouse lung tissue stiffness and alveolar deformation were evaluated under varying tonicity conditions that affect the stiffness of proteoglycans. Proteoglycans were stained and measured in the alveolar walls. Computational models of alveolar stability and rupture incorporating the mechanical properties of fibers and proteoglycans were developed. Although absolute tissue stiffness was only 24% of normal, changes in relative stiffness and alveolar shape distortion due to changes in tonicity were increased in emphysema (P < 0.01 and P < 0.001). Glycosaminoglycan amount per unit alveolar wall length, which is responsible for proteoglycan stiffness, was higher in emphysema (P < 0.001). Versican expression increased in the tissue, but decorin decreased. Our network model predicted that the rate of tissue deterioration locally governed by mechanical forces was reduced when proteoglycan stiffness was increased. Consequently, this general network model explains why increasing proteoglycan deposition protects the alveolar walls from rupture in emphysema. Our results suggest that the loss of proteoglycans observed in human emphysema contributes to disease progression, whereas treatments that promote proteoglycan deposition in the extracellular matrix should slow the progression of emphysema.
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Affiliation(s)
- Ayuko Takahashi
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts
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32
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Eurlings IMJ, Dentener MA, Mercken EM, de Cabo R, Bracke KR, Vernooy JHJ, Wouters EFM, Reynaert NL. A comparative study of matrix remodeling in chronic models for COPD; mechanistic insights into the role of TNF-α. Am J Physiol Lung Cell Mol Physiol 2014; 307:L557-65. [PMID: 25106431 DOI: 10.1152/ajplung.00116.2014] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Remodeling in chronic obstructive pulmonary disease (COPD) has at least two dimensions: small airway wall thickening and destruction of alveolar walls. Recently we showed comparable alterations of the extracellular matrix (ECM) compounds collagen, hyaluoran, and elastin in alveolar and small airway walls of COPD patients. The aim of this study was to characterize and assess similarities in alveolar and small airway wall matrix remodeling in chronic COPD models. From this comparative characterization of matrix remodeling we derived and elaborated underlying mechanisms to the matrix changes reported in COPD. Lung tissue sections of chronic models for COPD, either induced by exposure to cigarette smoke, chronic intratracheal lipopolysaccharide instillation, or local tumor necrosis factor (TNF) expression [surfactant protein C (SPC)-TNFα mice], were stained for elastin, collagen, and hyaluronan. Furthermore TNF-α matrix metalloproteinase (MMP)-2, -9, and -12 mRNA expression was analyzed using qPCR and localized using immunohistochemistry. Both collagen and hyaluronan were increased in alveolar and small airway walls of all three models. Interestingly, elastin contents were differentially affected, with a decrease in both alveolar and airway walls in SPC-TNFα mice. Furthermore TNF-α and MMP-2 and -9 mRNA and protein levels were found to be increased in alveolar walls and around airway walls only in SPC-TNFα mice. We show that only SPC-TNFα mice show changes in elastin remodeling that are comparable to what has been observed in COPD patients. This reveals that the SPC-TNFα model is a suitable model to study processes underlying matrix remodeling and in particular elastin breakdown as seen in COPD. Furthermore we indicate a possible role for MMP-2 and MMP-9 in the breakdown of elastin in airways and alveoli of SPC-TNFα mice.
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Affiliation(s)
- Irene M J Eurlings
- Department of Respiratory Medicine, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands;
| | - Mieke A Dentener
- Department of Respiratory Medicine, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Evi M Mercken
- Experimental Gerontology Section, Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, Maryland; and
| | - Rafael de Cabo
- Experimental Gerontology Section, Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, Maryland; and
| | - Ken R Bracke
- Laboratory for Translational Research in Obstructive Pulmonary Diseases, Department of Respiratory Medicine, Ghent University Hospital, Ghent, Belgium
| | - Juanita H J Vernooy
- Department of Respiratory Medicine, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Emiel F M Wouters
- Department of Respiratory Medicine, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Niki L Reynaert
- Department of Respiratory Medicine, NUTRIM School for Nutrition, Toxicology and Metabolism, Maastricht University Medical Center, Maastricht, The Netherlands
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33
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Similar matrix alterations in alveolar and small airway walls of COPD patients. BMC Pulm Med 2014; 14:90. [PMID: 24886452 PMCID: PMC4055380 DOI: 10.1186/1471-2466-14-90] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Accepted: 05/20/2014] [Indexed: 11/15/2022] Open
Abstract
Background Remodelling in COPD has at least two dimensions: small airway wall thickening and destruction of alveolar walls. Recent studies indicate that there is some similarity between alveolar and small airway wall matrix remodelling. The aim of this study was to characterise and assess similarities in alveolar and small airway wall matrix remodelling, and TGF-β signalling in COPD patients of different GOLD stages. Methods Lung tissue sections of 14 smoking controls, 16 GOLD II and 19 GOLD IV patients were included and stained for elastin and collagens as well as hyaluronan, a glycosaminoglycan matrix component and pSMAD2. Results Elastin was significantly decreased in COPD patients not only in alveolar, but also in small airway walls. Interestingly, both collagen and hyaluronan were increased in alveolar as well as small airway walls. The matrix changes were highly comparable between GOLD stages, with collagen content in the alveolar wall increasing further in GOLD IV. A calculated remodelling index, defined as elastin divided over collagen and hyaluronan, was decreased significantly in GOLD II and further lowered in GOLD IV patients, suggesting that matrix component alterations are involved in progressive airflow limitation. Interestingly, there was a positive correlation present between the alveolar and small airway wall stainings of the matrix components, as well as for pSMAD2. No differences in pSMAD2 staining between controls and COPD patients were found. Conclusions In conclusion, remodelling in the alveolar and small airway wall in COPD is markedly similar and already present in moderate COPD. Notably, alveolar collagen and a remodelling index relate to lung function.
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Nyunoya T, Mebratu Y, Contreras A, Delgado M, Chand HS, Tesfaigzi Y. Molecular processes that drive cigarette smoke-induced epithelial cell fate of the lung. Am J Respir Cell Mol Biol 2014; 50:471-82. [PMID: 24111585 DOI: 10.1165/rcmb.2013-0348tr] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Cigarette smoke contains numerous chemical compounds, including abundant reactive oxygen/nitrogen species and aldehydes, and many other carcinogens. Long-term cigarette smoking significantly increases the risk of various lung diseases, including chronic obstructive pulmonary disease and lung cancer, and contributes to premature death. Many in vitro and in vivo studies have elucidated mechanisms involved in cigarette smoke-induced inflammation, DNA damage, and autophagy, and the subsequent cell fates, including cell death, cellular senescence, and transformation. In this Translational Review, we summarize the known pathways underlying these processes in airway epithelial cells to help reveal future challenges and describe possible directions of research that could lead to better management and treatment of these diseases.
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Affiliation(s)
- Toru Nyunoya
- 1 Chronic Obstructive Pulmonary Disease Program, Lovelace Respiratory Research Institute, and
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35
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DAMPs activating innate and adaptive immune responses in COPD. Mucosal Immunol 2014; 7:215-26. [PMID: 24150257 DOI: 10.1038/mi.2013.77] [Citation(s) in RCA: 118] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 08/16/2013] [Accepted: 08/27/2013] [Indexed: 02/04/2023]
Abstract
Chronic obstructive pulmonary disease (COPD), a progressive lung disease characterized by sustained neutrophilic airway inflammation, is caused by chronic exposure to noxious stimuli, e.g., cigarette smoke. This chronic exposure can induce immunogenic cell death of structural airway cells, inducing the release of damage-associated molecular patterns (DAMPs). Levels of several DAMPs, including S100 proteins, defensins, and high-mobility group box-1 (HMGB1), are increased in extracellular lung fluids of COPD patients. As DAMPs can attract and activate immune cells upon binding to pattern recognition receptors, we propose that their release may contribute to neutrophilic airway inflammation. In this review, we discuss the novel role of DAMPs in COPD pathogenesis. Relevant DAMPs are categorized based on their subcellular origin, i.e. cytoplasm, endoplasmic reticulum, nucleus, and mitochondria. Furthermore, their potential role in the pathophysiology of COPD will be discussed.
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Ghosh S, Samarasinghe AE, Hoselton SA, Dorsam GP, Schuh JM. Hyaluronan deposition and co-localization with inflammatory cells and collagen in a murine model of fungal allergic asthma. Inflamm Res 2014; 63:475-84. [PMID: 24519432 DOI: 10.1007/s00011-014-0719-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 01/20/2014] [Accepted: 01/24/2014] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVE Allergic asthma is a chronic inflammatory disease of the airways characterized by excessive inflammation and remodeling of the extracellular matrix (ECM) and associated cells of the airway wall. Under inflammatory conditions, hyaluronan (HA), a major component of the ECM, undergoes dynamic changes, which may in turn affect the recruitment and activation of inflammatory cells leading to acute and chronic immunopathology of allergic asthma. METHODS In the present study, we measured the changes in HA levels generated at sites of inflammation, and examined its effect on inflammatory responses and collagen deposition in an Aspergillus fumigatus murine inhalational model of allergic asthma. RESULTS We found that HA levels are elevated in allergic animals and that the increase correlated with the influx of inflammatory cells 5 days after the second allergen challenge. This increase in HA levels appeared largely due to upregulation of hyaluronidase-1 (HYAL1) and hyaluronidase-2 (HYAL2). Furthermore, HA co-localizes with areas of new collagen synthesis and deposition. CONCLUSIONS Overall, our findings contribute to the growing literature that focuses on the components of ECM as inflammatory mediators rather than mere structural support products. The evidence of HA localization in fungal allergic asthma provides the impetus to study HA more closely with allergic leukocytes in murine models. Further studies examining HA's role in mediating cellular responses may help to develop targets for treatment in patients with severe asthma due to fungal sensitization.
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Affiliation(s)
- Sumit Ghosh
- Department of Veterinary and Microbiological Sciences, North Dakota State University, Dept 7690, P.O. Box 6050, Fargo, ND, 58105, USA,
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Uchakina ON, Castillejo CM, Bridges CC, McKallip RJ. The role of hyaluronic acid in SEB-induced acute lung inflammation. Clin Immunol 2012; 146:56-69. [PMID: 23246605 DOI: 10.1016/j.clim.2012.11.002] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2012] [Revised: 10/25/2012] [Accepted: 11/07/2012] [Indexed: 01/27/2023]
Abstract
We investigated the role of the extracellular matrix component, hyaluronic acid (HA) in SEB-induced ALI/ARDS. Intranasal exposure of mice to SEB led to a significant increase in the level of soluble hyaluronic acid in the lungs. Similarly, in an endothelial cell/spleen cell co-culture, SEB exposure led to significant increases in soluble levels of hyaluronic acid, cellular proliferation, and cytokine production compared with SEB-exposed spleen cells or endothelial cells alone. Exposure of SEB-activated spleen cells to hyaluronic acid led to increased cellular proliferation and increased cytokine production. SEB-induced cytokine production and proliferation in vitro were significantly reduced by the hyaluronic acid blocking peptide, Pep-1. Finally, treatment of SEB-exposed mice with Pep-1 significantly reduced SEB-induced ALI/ARDS, through reduction of cytokine production and numbers of lung inflammatory cells, compared to mice treated with a control peptide. Together, these results suggest the possibility of targeting HA for the treatment of SEB-induced ALI/ARDS.
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Affiliation(s)
- Olga N Uchakina
- Division of Basic Medical Sciences, Mercer University School of Medicine, Georgia 31207, USA
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Forteza RM, Casalino-Matsuda SM, Falcon NS, Valencia Gattas M, Monzon ME. Hyaluronan and layilin mediate loss of airway epithelial barrier function induced by cigarette smoke by decreasing E-cadherin. J Biol Chem 2012; 287:42288-98. [PMID: 23048036 DOI: 10.1074/jbc.m112.387795] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Cigarette smoke (CigS) exposure is associated with increased bronchial epithelial permeability and impaired barrier function. Primary cultures of normal human bronchial epithelial cells exposed to CigS exhibit decreased E-cadherin expression and reduced transepithelial electrical resistance. These effects were mediated by hyaluronan (HA) because inhibition of its synthesis with 4-methylumbelliferone prevented these effects, and exposure to HA fragments of <70 kDa mimicked these effects. We show that the HA receptor layilin is expressed apically in human airway epithelium and that cells infected with lentivirus expressing layilin siRNAs were protected against increased permeability triggered by both CigS and HA. We identified RhoA/Rho-associated protein kinase (ROCK) as the signaling effectors downstream layilin. We conclude that HA fragments generated by CigS bind to layilin and signal through Rho/ROCK to inhibit the E-cadherin gene and protein expression, leading to a loss of epithelial cell-cell contact. These studies suggest that HA functions as a master switch protecting or disrupting the epithelial barrier in its high versus low molecular weight form and that its depolymerization is a first and necessary step triggering the inflammatory response to CigS.
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Affiliation(s)
- Rosanna Malbran Forteza
- Division of Pulmonary Critical Care, Sleep and Allergy Medicine, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
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Li X, Wei N, Wu Z, Qi Z, Zhang X, Chen Q, Xia Z, Li S. The D/I polymorphism in the angiotensin-converting enzyme gene and chronic obstructive pulmonary disease risk: a meta-analysis. COPD 2012; 9:485-91. [PMID: 22876865 DOI: 10.3109/15412555.2012.694921] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND The deletion/insertion (D/I) polymorphism in the angiotensin-converting enzyme (ACE) gene has been implicated in susceptibility of chronic obstruction pulmonary disease (COPD), but a number of studies have reported inconclusive results. The aim of this study is to investigate the relationship between the D/I polymorphism in the ACE gene and COPD risk by meta-analysis. METHOD We searched Pubmed database, Embase database, CNKI database and Wanfang database, covering all studies until October 10, 2011. Statistical analysis was performed by using the software Revman4.2 and STATA 10.0. RESULTS A total of 710 COPD cases and 862 controls in 10 case-control studies were included in this study. The results suggested that the DD homozygote carriers did not have an increased or decreased risk of COPD when compared with the heterozygote DI and II homozygote carriers. However, in the subgroup analysis by race, significant increased risks were found in Asian DD homozygote carriers (OR = 2.6 and 95% CI = 1.47-4.57 for DD vs. DI+II) but not in Caucasian DD homozygote carriers (OR = 0.91, 95%CI = 0.69-1.22, P = 0.54 for DD vs. DI+II). CONCLUSIONS This meta-analysis suggested that the ACE gene is a COPD susceptible gene in Asian populations. Future studies are needed to validate our conclusions..
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Affiliation(s)
- Xiaobo Li
- Department of Respiratory Medicine , The 452 Military Hospital of China, Chengdu, Sichuan 610041, China.
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Papakonstantinou E, Klagas I, Karakiulakis G, Hostettler K, S'ng CT, Kotoula V, Savic S, Tamm M, Roth M. Steroids and β2-agonists regulate hyaluronan metabolism in asthmatic airway smooth muscle cells. Am J Respir Cell Mol Biol 2012; 47:759-67. [PMID: 22865625 DOI: 10.1165/rcmb.2012-0101oc] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Glycosaminoglycans (GAGs), especially hyaluronic acid (HA), regulate tissue flexibility, cell motility, and inflammation. Airway smooth muscle cells (ASMCs) of patients with asthma exhibit abnormal HA metabolism, which contributes to inflammation and remodeling. Here, we investigated the effects of glucocorticoids and long-acting β(2)-agonists (LABAs) on GAG synthesis and HA metabolism by human primary ASMCs. ASMCs were isolated from airway specimens of 10 patients without asthma and 11 patients with asthma. ASMCs were incubated with glucocorticoids, LABAs, or their combination, as well as with their specific receptor antagonists. Secreted and deposited total GAGs were measured by [(3)H]-glucosamine incorporation. The expression of specific GAGs was determined by ELISA and electrophoresis. The expression of HA synthases (HAS), of hyaluronidases (HYALs), and of the HA receptor CD44 was determined by RT-PCR, immunoblotting in cell cultures, and immunohistochemistry in tissue sections of asthmatic lungs. In serum-activated asthmatic ASMCs, glucocorticoids and LABAs significantly inhibited the increased secretion and deposition of total GAGs, but they stimulated secreted and deposited HA of high molecular mass. This effect was attributed to increased mRNA and protein expression of HAS-1 and to the reduced expression of HYAL-1. Furthermore, drug treatment stimulated the expression of CD44 receptors in asthmatic ASMCs. These effects of the drugs were eliminated by their respective receptor inhibitors. Our findings indicate that the combination of glucocorticoids with LABAs counteracts the pathologic degradation of HA, and thereby may reduce the proinflammatory potential of asthmatic ASMCs.
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Affiliation(s)
- Eleni Papakonstantinou
- Department of Pharmacology, School of Medicine, Aristotle University, Thessaloniki, Greece
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Bezemer GFG, Sagar S, van Bergenhenegouwen J, Georgiou NA, Garssen J, Kraneveld AD, Folkerts G. Dual role of Toll-like receptors in asthma and chronic obstructive pulmonary disease. Pharmacol Rev 2012; 64:337-58. [PMID: 22407613 DOI: 10.1124/pr.111.004622] [Citation(s) in RCA: 86] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
During the last decade, significant research has been focused on Toll-like receptors (TLRs) in the pathogenesis of airway diseases. TLRs are pattern recognition receptors that play pivotal roles in the detection of and response to pathogens. Because of the involvement of TLRs in innate and adaptive immunity, these receptors are currently being exploited as possible targets for drug development. Asthma and chronic obstructive pulmonary disease (COPD) are chronic inflammatory airway diseases in which innate and adaptive immunity play an important role. To date, asthma is the most common chronic disease in children aged 5 years and older. COPD is prevalent amongst the elderly and is currently the fifth-leading cause of death worldwide with still-growing prevalence. Both of these inflammatory diseases result in shortness of breath, which is treated, often ineffectively, with bronchodilators and glucocorticosteroids. Symptomatic treatment approaches are similar for both diseases; however, the underlying immunological mechanisms differ greatly. There is a clear need for improved treatment specific for asthma and for COPD. This review provides an update on the role of TLRs in asthma and in COPD and discusses the merits and difficulties of targeting these proteins as novel treatment strategies for airway diseases. TLR agonist, TLR adjuvant, and TLR antagonist therapies could all be argued to be effective in airway disease management. Because of a possible dual role of TLRs in airway diseases with shared symptoms and risk factors but different immunological mechanisms, caution should be taken while designing pulmonary TLR-based therapies.
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Affiliation(s)
- Gillina F G Bezemer
- Division of Pharmacology, Utrecht Institute for Pharmaceutical Sciences, Faculty of Science, Utrecht University, Utrecht, The Netherlands.
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Eldridge L, Moldobaeva A, Wagner EM. Increased hyaluronan fragmentation during pulmonary ischemia. Am J Physiol Lung Cell Mol Physiol 2011; 301:L782-8. [PMID: 21821727 DOI: 10.1152/ajplung.00079.2011] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Hyaluronan (HA), a glycosaminoglycan critical to the lung extracellular matrix, has been shown to dissociate into low-molecular-weight (LMW) HA fragments following exposure to injurious stimuli. In the present study we questioned whether lung HA changed during ischemia and whether changes had an effect on subsequent angiogenesis. After left pulmonary artery ligation (LPAL) in mice, we analyzed left lung homogenates immediately after the onset of ischemia (0 h) and intermittently for 14 days. The relative expression of HA synthase (HAS)1, HAS2, and HAS3 was determined by real-time RT-PCR, total HA in the lung was measured by an ELISA-like assay, gel electrophoresis was performed to determine changes in HA size distribution, and the activity of hyaluronidases was determined by zymography. A 50% increase in total HA was measured 16 h after the onset of ischemia and remained elevated for up to 7 days. Furthermore, a fourfold increase in LMW HA fragments (495-30 kDa) was observed by 4 h after LPAL. Both HAS1 and HAS2 showed increased expression 4-16 h after LPAL, yet no changes were seen in hyaluronidase activity. These results suggest that both HA fragmentation and activation of HA synthesis contribute to increased HA levels during lung ischemia. Delivery of LMW HA fragments in an in vitro tube formation assay or directly to the ischemic mouse lung in vivo both resulted in increased angiogenesis. We conclude that ischemic injury results in matrix fragmentation, which leads to stimulation of neovascularization.
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Affiliation(s)
- Lindsey Eldridge
- Department of Medicine, Johns Hopkins University, Baltimore, Maryland, USA
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Lennon FE, Singleton PA. Role of hyaluronan and hyaluronan-binding proteins in lung pathobiology. Am J Physiol Lung Cell Mol Physiol 2011; 301:L137-47. [PMID: 21571904 DOI: 10.1152/ajplung.00071.2010] [Citation(s) in RCA: 84] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Hyaluronan (HA) has diverse functions in normal lung homeostasis and pulmonary disease. HA constitutes the major glycosaminoglycan in lung tissue, with HA degradation products, produced by hyaluronidase enzymes and reactive oxygen species, being implicated in several lung diseases, including acute lung injury, asthma, chronic obstructive pulmonary disease, and pulmonary hypertension. The differential activities of HA and its degradation products are due, in part, to regulation of multiple HA-binding proteins, including cluster of differentiation 44 (CD44), Toll-like receptor 4 (TLR4), HA-binding protein 2 (HABP2), and receptor for HA-mediated motility (RHAMM). Recent research indicates that exogenous administration of high-molecular-weight HA can serve as a novel therapeutic intervention for lung diseases, including lipopolysaccharide (LPS)-induced acute lung injury, sepsis/ventilator-induced lung injury, and airway hyperreactivity. This review focuses on the regulatory role of HA and HA-binding proteins in lung pathology and discusses the capacity of HA to augment and inhibit various lung diseases.
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Affiliation(s)
- Frances E Lennon
- Section of Pulmonary and Critical Care, Department of Medicine, Pritzker School of Medicine, The University of Chicago, Chicago, Illinois 60637, USA
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Abstract
Lung tissue remodeling in chronic obstructive pulmonary disease (COPD) involves diverse processes characterized by epithelial disruption, smooth muscle hypertrophy/hyperplasia, airway wall fibrosis, and alveolar destruction. According to the accepted current theory of COPD pathogenesis, tissue remodeling in COPD is predominantly a consequence of an imbalance between proteolytic and antiproteolytic activities. However, most of the studies carried out during the last few years have focused on mechanisms related to degradation of extracellular matrix (ECM) structural proteins, neglecting those involved in ECM protein deposition. This review revisits some of the latest findings related to fibrotic changes that occur in the airway wall of COPD patients, as well as the main cellular phenotypes relevant to these processes.
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HUANG PM, SYRKINA O, YU L, DEDAJ R, ZHAO H, SHIEDLIN A, LIU YY, GARG H, QUINN DA, HALES CA. High MW hyaluronan inhibits smoke inhalation-induced lung injury and improves survival. Respirology 2010; 15:1131-9. [DOI: 10.1111/j.1440-1843.2010.01829.x] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Singleton PA, Mirzapoiazova T, Guo Y, Sammani S, Mambetsariev N, Lennon FE, Moreno-Vinasco L, Garcia JGN. High-molecular-weight hyaluronan is a novel inhibitor of pulmonary vascular leakiness. Am J Physiol Lung Cell Mol Physiol 2010; 299:L639-51. [PMID: 20709728 DOI: 10.1152/ajplung.00405.2009] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Endothelial cell (EC) barrier dysfunction results in increased vascular permeability, a perturbation observed in inflammatory states, tumor angiogenesis, atherosclerosis, and both sepsis and acute lung injury. Therefore, agents that enhance EC barrier integrity have important therapeutic implications. We observed that binding of high-molecular-weight hyaluronan (HMW-HA) to its cognate receptor CD44 within caveolin-enriched microdomains (CEM) enhances human pulmonary EC barrier function. Immunocytochemical analysis indicated that HMW-HA promotes redistribution of a significant population of CEM to areas of cell-cell contact. Quantitative proteomic analysis of CEM isolated from human EC demonstrated HMW-HA-mediated recruitment of cytoskeletal regulatory proteins (annexin A2, protein S100-A10, and filamin A/B). Inhibition of CEM formation [caveolin-1 small interfering RNA (siRNA) and cholesterol depletion] or silencing (siRNA) of CD44, annexin A2, protein S100-A10, or filamin A/B expression abolished HMW-HA-induced actin cytoskeletal reorganization and EC barrier enhancement. To confirm our in vitro results in an in vivo model of inflammatory lung injury with vascular hyperpermeability, we observed that the protective effects of HMW-HA on LPS-induced pulmonary vascular leakiness were blocked in caveolin-1 knockout mice. Furthermore, targeted inhibition of CD44 expression in the mouse pulmonary vasculature significantly reduced HMW-HA-mediated protection from LPS-induced hyperpermeability. These data suggest that HMW-HA, via CD44-mediated CEM signaling events, represents a potentially useful therapeutic agent for syndromes of increased vascular permeability.
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Affiliation(s)
- Patrick A Singleton
- Dept. of Medicine, Univ. of Chicago, MC 6076, I-503C, 5841 S. Maryland Ave., Chicago, IL 60637, USA.
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