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Li L, Jiao L, Feng D, Yuan Y, Yang X, Li J, Jiang D, Chen H, Meng Q, Chen R, Fang B, Zou X, Luo Z, Ye X, Hong Y, Liu C, Li C. Human apical-out nasal organoids reveal an essential role of matrix metalloproteinases in airway epithelial differentiation. Nat Commun 2024; 15:143. [PMID: 38168066 PMCID: PMC10762242 DOI: 10.1038/s41467-023-44488-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 12/14/2023] [Indexed: 01/05/2024] Open
Abstract
Extracellular matrix (ECM) assembly/disassembly is a critical regulator for airway epithelial development and remodeling. Airway organoid is widely used in respiratory research, yet there is limited study to indicate the roles and mechanisms of ECM organization in epithelial growth and differentiation by using in vitro organoid system. Moreover, most of current Matrigel-based airway organoids are in basal-out orientation where accessing the apical surface is challenging. We present a human apical-out airway organoid using a biochemically defined hybrid hydrogel system. During human nasal epithelial progenitor cells (hNEPCs) differentiation, the gel gradually degrade, leading to the organoid apical surfaces facing outward. The expression and activity of ECM-degrading enzymes, matrix metalloproteinases (MMP7, MMP9, MMP10 and MMP13) increases during organoid differentiation, where inhibition of MMPs significantly suppresses the normal ciliation, resulting in increased goblet cell proportion. Moreover, a decrease of MMPs is found in goblet cell hyperplastic epithelium in inflammatory mucosa. This system reveals essential roles of epithelial-derived MMPs on epithelial cell fate determination, and provides an applicable platform enabling further study for ECM in regulating airway development in health and diseases.
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Affiliation(s)
- Liyue Li
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Department of Otorhinolaryngology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Linyi Jiao
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Danni Feng
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yizhang Yuan
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiaoqian Yang
- Precision Medicine Institute, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jian Li
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangxi Hospital Division of The First Affiliated Hospital, Sun Yat-sen University, Nanning, China
| | - Dong Jiang
- Precision Medicine Institute, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hexin Chen
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qingxiang Meng
- Department of Otorhinolaryngology Head and Neck Surgery, Guangzhou First People's Hospital, Guangzhou, China
| | - Ruchong Chen
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, Department of Allergy and Clinical Immunology, Guangzhou Medical University, Guangzhou, China
| | - Bixing Fang
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xuenong Zou
- Precision Medicine Institute, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhenhua Luo
- Precision Medicine Institute, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiaoyan Ye
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangxi Hospital Division of The First Affiliated Hospital, Sun Yat-sen University, Nanning, China
| | - Yue Hong
- School of Life Sciences, Hainan University, Haikou, China
| | - Chun Liu
- Precision Medicine Institute, Guangdong Provincial Key Laboratory of Orthopedics and Traumatology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.
| | - Chunwei Li
- Department of Otolaryngology, Department of Allergy, Guangzhou Key Laboratory of Otorhinolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
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Bougault V, Turmel J, Boulet LP. Serum and sputum MMP-9/TIMP-1 in winter sports athletes and swimmers: relationships with airway function. Biomarkers 2021; 27:127-137. [PMID: 34927510 DOI: 10.1080/1354750x.2021.2020902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
INTRODUCTION Skiers and swimmers present characteristics of airway inflammation and remodeling of the extracellular matrix similar to what is observed in mild asthma. We aimed to compare serum and sputum MMP-9/TIMP-1 levels, to assess the balance between airway fibrogenesis and inflammation process in both categories of athletes, and to observe its seasonal variations in winter sports athletes. METHODS We conducted a retrospective study. Winter sports athletes (n = 41), swimmers (n = 25) and healthy nonathletes (n = 10) had blood sampling, lung function measurement, skin prick tests, eucapnic voluntary hyperpnea challenge, methacholine inhalation test, and induced sputum analysis. Twelve winter sport athletes performed the tests during both summer and winter. Serum and sputum biomarkers were measured by ELISA. RESULTS No significant difference in serum or sputum MMP-9/TIMP-1 ratio was observed between groups, nor relationship with airway function or responsiveness. Serum MMP-9/TIMP-1 ratio was higher during the summer in winter sport athletes compared with winter season (median [Interquartile range]: 3.65 [2.47-4.03] ng.ml-1 and 1.27 [0.97-1.62] ng.ml-1, respectively, p = 0.005). Sputum MMP-9 correlated with methacholine PC20 (r = 0.45, p = 0.019) and serum cc16/SP-D ratio (r=-0.47, p = 0.013). CONCLUSION MMP-9/TIMP-1 ratio in sputum or serum may fluctuate with training or environment but does not correlate with airway function or responsiveness in athletes.
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Affiliation(s)
- Valérie Bougault
- Université Côte d'Azur, LAMHESS, Nice, France.,Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, Canada
| | - Julie Turmel
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, Canada
| | - Louis-Philippe Boulet
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, Canada
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Increased Ratio of Matrix Metalloproteinase-9 (MMP-9)/Tissue Inhibitor Metalloproteinase-1 from Alveolar Macrophages in Chronic Asthma with a Fast Decline in FEV 1 at 5-Year Follow-up. J Clin Med 2019; 8:jcm8091451. [PMID: 31547356 PMCID: PMC6780991 DOI: 10.3390/jcm8091451] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 09/07/2019] [Accepted: 09/09/2019] [Indexed: 02/06/2023] Open
Abstract
Chronic asthma is associated with progressive airway remodeling, which may contribute to declining lung function. An increase in matrix metalloproteinases-9 (MMP-9)/tissue inhibitor metalloproteinase-1 (TIMP-1) may indicate airway inflammation and bronchial injury. Bronchial biopsy specimens and alveolar macrophages (AMs) were obtained from patients with asthma under regular treatment with inhaled corticosteroids or combination therapy and normal subjects (n = 10). Asthmatics included those with a slow forced expiratory volume in one second (FEV1) decline (<30 mL/year, n = 13) and those with a fast FEV1 decline (≥30 mL/year, n = 8) in 5-year follow-up. Immunostaining expression of MMP-9 and TIMP-1 was detected in airway tissues. MMP-9 and TIMP-1 was measured from AMs cultured for 24 h. After the 5-year treatment, the methacholine airway hyperresponsiveness of the slow FEV1 decline group was decreased, but that of the fast FEV1 decline group was increased (PC20, provocative concentration causing a 20% decrease in FEV1, 3.12 ± 1.10 to 1.14 ± 0.34 mg/dL, p < 0.05). AMs of asthma with a fast FEV1 decline released a higher level of MMP-9 (8.52 ± 3.53 pg/mL, p < 0.05) than those of a slow FEV1 decline (0.99 ± 0.20 pg/mL). The MMP-9/TIMP ratio in the fast FEV1 decline group (0.089 ± 0.032) was higher than that of the slow FEV1 decline group (0.007 ± 0.001, p < 0.01). The annual FEV1 decline in 5 years was proportional to the level of MMP-9 (r = 57, p < 0.01) and MMP-9/TIMP-1 ratio (r = 0.58, p < 0.01). The airways of asthma with greater yearly decline in FEV1 showed an increased thickness of submucosa and strong expression of MMP-9. An increase in MMP-9 and MMP-9/TIMP-1 in airways or AMs could be indicators of chronic airway inflammation and contribute to a greater decline in lung function of patients with chronic asthma.
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Bchir S, ben Nasr H, Garrouch A, ben Anes A, Abbassi A, Tabka Z, Chahed K. MMP-3 (-1171 5A/6A; Lys45Glu) variants affect serum levels of matrix metalloproteinase (MMP)-3 and correlate with severity of COPD: A study of MMP-3, MMP-7 and MMP-12 in a Tunisian population. J Gene Med 2017; 20. [DOI: 10.1002/jgm.2999] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/04/2017] [Accepted: 11/11/2017] [Indexed: 12/22/2022] Open
Affiliation(s)
- Sarra Bchir
- Unité de recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire ‘Biologie, Médecine et Santé’; Université de Sousse, Faculté de Médecine de Sousse; Tunisia
- Department of Biology; Institut Supérieur de Biotechnologie de Monastir, Université de Monastir; Tunisia
| | - Hela ben Nasr
- Unité de recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire ‘Biologie, Médecine et Santé’; Université de Sousse, Faculté de Médecine de Sousse; Tunisia
- Department of Biology; Institut des Sciences Infirmières; Sousse Tunisia
| | | | - Amel ben Anes
- Unité de recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire ‘Biologie, Médecine et Santé’; Université de Sousse, Faculté de Médecine de Sousse; Tunisia
| | - Ammar Abbassi
- Unité de recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire ‘Biologie, Médecine et Santé’; Université de Sousse, Faculté de Médecine de Sousse; Tunisia
- District Medical du Centre; CNAM; Sousse Tunisia
| | - Zouhair Tabka
- Unité de recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire ‘Biologie, Médecine et Santé’; Université de Sousse, Faculté de Médecine de Sousse; Tunisia
| | - Karim Chahed
- Unité de recherche UR12ES06, Physiologie de l'Exercice et Physiopathologie: de l'Intégré au Moléculaire ‘Biologie, Médecine et Santé’; Université de Sousse, Faculté de Médecine de Sousse; Tunisia
- Department of Biochemistry; Université de Sfax, Faculté des Sciences de Sfax; Tunisia
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Sequestration of Vascular Endothelial Growth Factor (VEGF) Induces Late Restrictive Lung Disease. PLoS One 2016; 11:e0148323. [PMID: 26863115 PMCID: PMC4749176 DOI: 10.1371/journal.pone.0148323] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 01/15/2016] [Indexed: 11/19/2022] Open
Abstract
Rationale Neonatal respiratory distress syndrome is a restrictive lung disease characterized by surfactant deficiency. Decreased vascular endothelial growth factor (VEGF), which demonstrates important roles in angiogenesis and vasculogenesis, has been implicated in the pathogenesis of restrictive lung diseases. Current animal models investigating VEGF in the etiology and outcomes of RDS require premature delivery, hypoxia, anatomically or temporally limited inhibition, or other supplemental interventions. Consequently, little is known about the isolated effects of chronic VEGF inhibition, started at birth, on subsequent developing lung structure and function. Objectives To determine whether inducible, mesenchyme-specific VEGF inhibition in the neonatal mouse lung results in long-term modulation of AECII and whole lung function. Methods Triple transgenic mice expressing the soluble VEGF receptor sFlt-1 specifically in the mesenchyme (Dermo-1/rtTA/sFlt-1) were generated and compared to littermate controls at 3 months to determine the impact of neonatal downregulation of mesenchymal VEGF expression on lung structure, cell composition and function. Reduced tissue VEGF bioavailability has previously been demonstrated with this model. Measurements and Main Results Triple transgenic mice demonstrated restrictive lung pathology. No differences in gross vascular development or protein levels of vascular endothelial markers was noted, but there was a significant decrease in perivascular smooth muscle and type I collagen. Mutants had decreased expression levels of surfactant protein C and hypoxia inducible factor 1-alpha without a difference in number of type II pneumocytes. Conclusions These data show that mesenchyme-specific inhibition of VEGF in neonatal mice results in late restrictive disease, making this transgenic mouse a novel model for future investigations on the consequences of neonatal RDS and potential interventions.
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Ghosh S, Hoselton SA, Dorsam GP, Schuh JM. Hyaluronan fragments as mediators of inflammation in allergic pulmonary disease. Immunobiology 2014; 220:575-88. [PMID: 25582403 DOI: 10.1016/j.imbio.2014.12.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Revised: 12/10/2014] [Accepted: 12/15/2014] [Indexed: 12/22/2022]
Abstract
Asthma is frequently caused and/or exacerbated by sensitization to allergens, which are ubiquitous in many indoor and outdoor environments. Severe asthma is characterized by airway hyperresponsiveness and bronchial constriction in response to an inhaled allergen, leading to a disease course that is often very difficult to treat with standard asthma therapies. As a result of interactions among inflammatory cells, structural cells, and the intercellular matrix of the allergic lung, patients with sensitization to allergens may experience a greater degree of tissue injury followed by airway wall remodeling and progressive, accumulated pulmonary dysfunction as part of the disease sequela. In addition, turnover of extracellular matrix (ECM) components is a hallmark of tissue injury and repair. This review focuses on the role of the glycosaminoglycan hyaluronan (HA), a component of the ECM, in pulmonary injury and repair with an emphasis on allergic asthma. Both the synthesis and degradation of the ECM are critical contributors to tissue repair and remodeling. Fragmented HA accumulates during tissue injury and functions in ways distinct from the larger native polymer. There is gathering evidence that HA degradation products are active participants in stimulating the expression of inflammatory genes in a variety of immune cells at the injury site. In this review, we will consider recent advances in the understanding of the mechanisms that are associated with HA accumulation and inflammatory cell recruitment in the asthmatic lung.
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Affiliation(s)
- Sumit Ghosh
- Department of Veterinary and Microbiological Sciences, North Dakota State University, Fargo, ND 58108, USA.
| | - Scott A Hoselton
- Department of Veterinary and Microbiological Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Glenn P Dorsam
- Department of Veterinary and Microbiological Sciences, North Dakota State University, Fargo, ND 58108, USA
| | - Jane M Schuh
- Department of Veterinary and Microbiological Sciences, North Dakota State University, Fargo, ND 58108, USA
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O'Reilly M, Hansbro PM, Horvat JC, Beckett EL, Harding R, Sozo F. Bronchiolar remodeling in adult mice following neonatal exposure to hyperoxia: relation to growth. Anat Rec (Hoboken) 2014; 297:758-69. [PMID: 24443274 DOI: 10.1002/ar.22867] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Accepted: 11/30/2013] [Indexed: 11/07/2022]
Abstract
Preterm infants who receive supplemental oxygen for prolonged periods are at increased risk of impaired lung function later in life. This suggests that neonatal hyperoxia induces persistent changes in small conducting airways (bronchioles). Although the effects of neonatal hyperoxia on alveolarization are well documented, little is known about its effects on developing bronchioles. We hypothesized that neonatal hyperoxia would remodel the bronchiolar walls, contributing to altered lung function in adulthood. We studied three groups of mice (C57BL/6J) to postnatal day 56 (P56; adulthood) when they either underwent lung function testing or necropsy for histological analysis of the bronchiolar wall. One group inhaled 65% O2 from birth until P7, after which they breathed room air; this group experienced growth restriction (HE+GR group). We also used a group in which hyperoxia-induced GR was prevented by dam rotation (HE group). A control group inhaled room air from birth. At P56, the bronchiolar epithelium of HE mice contained fewer Clara cells and more ciliated cells, and the bronchiolar wall contained ∼25% less collagen than controls; in HE+GR mice the bronchiolar walls had ∼13% more collagen than controls. Male HE and HE+GR mice had significantly thicker bronchiolar epithelium than control males and altered lung function (HE males: greater dynamic compliance; HE+GR males: lower dynamic compliance). We conclude that neonatal hyperoxia remodels the bronchiolar wall and, in adult males, affects lung function, but effects are altered by concomitant growth restriction. Our findings may partly explain the reports of poor lung function in ex-preterm children and adults.
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Affiliation(s)
- Megan O'Reilly
- Department of Anatomy and Developmental Biology, Monash University, Melbourne, Victoria, 3800, Australia
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Poon AH, Mahboub B, Hamid Q. Vitamin D deficiency and severe asthma. Pharmacol Ther 2013; 140:148-55. [PMID: 23792089 DOI: 10.1016/j.pharmthera.2013.06.006] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 06/06/2013] [Indexed: 01/08/2023]
Abstract
Vitamin D has received tremendous amount of attention recently due to the ever-increasing reports of association between vitamin D deficiency and a wide range of conditions, from cancer to fertility to longevity. The fascination of disease association with vitamin D deficiency comes from the relatively easy solution to overcome such a risk factor, that is, either by increase in sun exposure and/or diet supplementation. Many reviews have been written on a protective role of vitamin D in asthma and related morbidities; here, we will summarize the epidemiological evidence supporting a role of vitamin D against hallmark features of severe asthma, such as airway remodeling and asthma exacerbations. Furthermore, we discuss data from in vitro and in vivo studies which provide insights on the potential mechanisms of how vitamin D may protect against severe asthma pathogenesis and how vitamin D deficiency may lead to the development of severe asthma. Approximately 5-15% of asthmatic individuals suffer from the more severe forms of disease in spite of aggressive therapies and they are more likely to have irreversible airflow obstruction associated with airway remodeling. At present drugs commonly used to control asthma symptoms, such as corticosteroids, do not significantly reverse or reduce remodeling in the airways. Hence, if vitamin D plays a protective role against the development of severe asthma, then the most effective therapy may simply be a healthy dose of sunshine.
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Affiliation(s)
- Audrey H Poon
- Meakins-Christie Laboratories, McGill University, Canada
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Hsieh MH, Chou PC, Chou CL, Ho SC, Joa WC, Chen LF, Sheng TF, Lin HC, Wang TY, Chang PJ, Wang CH, Kuo HP. Matrix metalloproteinase-1 polymorphism (-1607G) and disease severity in non-cystic fibrosis bronchiectasis in Taiwan. PLoS One 2013; 8:e66265. [PMID: 23776649 PMCID: PMC3679085 DOI: 10.1371/journal.pone.0066265] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2012] [Accepted: 05/02/2013] [Indexed: 01/02/2023] Open
Abstract
Objectives Bronchiectasis is characterized by an irreversible dilatation of bronchi and is associated with lung fibrosis. MMP-1 polymorphism may alter its transcriptional activity, and differentially modulate bronchial destruction and lung fibrosis. Design To investigate the association of MMP-1 polymorphisms with disease severity in non-cystic fibrosis (CF) bronchiectasis patients, 51 normal subjects and 113 patients with bronchiectasis were studied. The associations between MMP-1 polymorphisms, lung function, and disease severity evaluated by high resolution computed tomography (HRCT) were analyzed. Results The frequency of MMP-1(-1607G) allele was significantly higher in patients with bronchiectasis than normal subjects (70.8% vs 45.1%, p<0.01). Forced expiratory volume in 1 second (FEV1) was decreased in bronchiectasis patients with 1G/1G (1.2±0.1 L, n = 14) and 1G/2G (1.3±0.1 L, n = 66) genotypes compared to the 2G/2G genotype (1.7±0.1 L, n = 33, p<0.01). Six minute walking distance was decreased in bronchiectasis patients with 1G/1G and 1G/2G compared to that of 2G/2G genotype. Disease severity evaluated by HRCT score significantly increased in bronchiectasis patients with 1G/1G and 1G/2G genotypes compared to that of 2G/2G genotype. Bronchiectasis patients with at least one MMP-1 (-1607G) allele showed increased tendency for hospitalization. Serum levels of pro-MMP-1, active MMP-1 and TGF-β1 were significantly increased in patients with bronchiectasis with 1G/1G and 1G/2G genotype compared with 2G/2G genotype or normal subjects. Under IL-1β stimulation, peripheral blood monocytes from subjects with 1G/2G or 1G/1G genotype secreted higher levels of TGF-β1compared to subjects with 2G/2G genotype. Conclusion This is the first report to address the influence of MMP-1 polymorphisms on lung function and airway destruction in non-CF bronchiectasis patients. Bronchiectasis patients with MMP-1(-1607G) polymorphism may be more vulnerable to permanent lung fibrosis or airway destruction due to the enhanced MMP-1 and TGF-β1 activity. Upregulated MMP-1 activity results in proteolytic destruction of matrix, and leads to subsequent fibrosis.
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Affiliation(s)
- Meng-Heng Hsieh
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Pai-Chien Chou
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Chun-Liang Chou
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Shu-Chuan Ho
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
- School of Respiratory Therapy, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wen-Ching Joa
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Li-Fei Chen
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Te-Fang Sheng
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Horng-Chyuan Lin
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Tsai-Yu Wang
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Po-Jui Chang
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
| | - Chun-Hua Wang
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
- * E-mail:
| | - Han-Pin Kuo
- Department of Thoracic Medicine, Chang Gung Medical Foundation, Taipei, Taiwan
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Human matrix metalloproteinases: an ubiquitarian class of enzymes involved in several pathological processes. Mol Aspects Med 2011; 33:119-208. [PMID: 22100792 DOI: 10.1016/j.mam.2011.10.015] [Citation(s) in RCA: 164] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2011] [Accepted: 10/29/2011] [Indexed: 02/07/2023]
Abstract
Human matrix metalloproteinases (MMPs) belong to the M10 family of the MA clan of endopeptidases. They are ubiquitarian enzymes, structurally characterized by an active site where a Zn(2+) atom, coordinated by three histidines, plays the catalytic role, assisted by a glutamic acid as a general base. Various MMPs display different domain composition, which is very important for macromolecular substrates recognition. Substrate specificity is very different among MMPs, being often associated to their cellular compartmentalization and/or cellular type where they are expressed. An extensive review of the different MMPs structural and functional features is integrated with their pathological role in several types of diseases, spanning from cancer to cardiovascular diseases and to neurodegeneration. It emerges a very complex and crucial role played by these enzymes in many physiological and pathological processes.
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11
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Sands MF. Localization of matrix metalloproteinase (MMP)-9 in lung tissue of a murine model of allergic asthma. Immunol Invest 2011; 41:87-96. [PMID: 21644819 DOI: 10.3109/08820139.2011.584600] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
MMP-9 (gelatinase B) is recognized in chronic obstructive pulmonary disease (COPD) and now asthma as playing a central role in matrix degradation in injury, as well as contributing to the remodeling process. The increasing focus on MMP-9 in human and animal research supports the need for a reliable immunostain in lung tissue. However, MMP-9 immunostaining in murine systems is hampered by several factors. First, many of the anti-human antibodies do not readily cross-react with murine MMP-9 despite the high degree of conservation between human and murine MMP-9. Secondly, the availability of detailed protocols is limited. Lung MMP-9 immunostaining is further complicated by technical issues such as edge effect, availability of positive and negative controls, antigen retrieval, staining specificity, and the need to achieve a delicate balance of primary and secondary antibody concentrations, and colorimetric reagents which will allow visualization of specific cell expression in highly delicate lung tissue, while also demonstrating adequate uptake in (extra-pulmonary) tissue controls. We describe a detailed method for immunostaining MMP-9 in mouse lung paraffin-embedded tissue utilizing human ovary as a control since MMP-9 is known to be over-expressed in human ovarian carcinomas.
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Affiliation(s)
- Mark F Sands
- Department of Medicine, Division of Allergy, Immunology, and Rheumatology, University at Buffalo, State University of New York, and Veterans Administration Healthcare System of Western New York, Buffalo, USA.
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Todorova L, Bjermer L, Westergren-Thorsson G, Miller-Larsson A. TGFβ-induced matrix production by bronchial fibroblasts in asthma: budesonide and formoterol effects. Respir Med 2011; 105:1296-307. [PMID: 21514131 DOI: 10.1016/j.rmed.2011.03.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Revised: 03/27/2011] [Accepted: 03/29/2011] [Indexed: 01/09/2023]
Abstract
To investigate the mechanisms of enhanced airway deposition of subepithelial collagen in asthma and its sensitivity to drug therapy with combination of an inhaled glucocorticosteroid (GC) and a long-acting β(2)-agonist (LABA), a cell model system involving bronchial fibroblasts derived from biopsies from patients with stable mild-to-moderate asthma has been used. To mimic unstable conditions and severe asthma, fibroblasts were stimulated ex vivo with TGFβ1. Primary fibroblasts established from central bronchial biopsies from 8 asthmatic patients were incubated for 24 h with 0.4% serum or TGFβ1 (10 ng/ml) with/without the GC budesonide (BUD; 10 nM) and/or the LABA formoterol (FORM; 0.1 nM). Procollagen peptide I (PICP), metalloproteinase (MMP)-1 and tissue inhibitor of MMPs (TIMP-1) were determined in culture media using ELISA while the activity of MMP-2, -3, -9 by zymography. Metabolically labeled proteoglycans, biglycan and decorin, associated with collagen fibrillation/deposition, were separated using chromatography and SDS-PAGE. The levels of PICP and biglycan were increased 2-fold by TGFβ1 (p < 0.05). The BUD and FORM combination reduced the PICP increase by 58% (p < 0.01) and the biglycan by 36% (p < 0.05) while each drug alone had no effect. Decorin levels were reduced by TGFβ1 in fibroblasts of most patients; BUD alone and BUD and FORM completely counteracted this decrease. MMPs and TIMP-1 were not affected by TGFβ1 or the drugs. These results suggest that BUD and FORM combination therapy, without affecting metalloproteolytic balance, has a potential to counteract enhanced collagen production by bronchial fibroblasts in asthma and to normalize the production of small proteoglycans which may affect collagen fibrillation and deposition.
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Affiliation(s)
- Lizbet Todorova
- Department of Experimental Medical Sciences, Division of Lung Biology, Lund University, BMC D12, 221 84 Lund, Sweden
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