Abstract:
BACKGROUND:The collagen gel contraction assay measures gel size to assess the contraction of cells embedded in collagen gel matrices. Using the assay with lung fibroblasts is useful in studying the lung tissue remodeling process in wound healing and disease development. However, the involvement of bronchial epithelial cells in this process should also be investigated. METHODS:We applied a layer of mucociliary differentiated bronchial epithelial cells onto collagen gel matrices with lung fibroblasts. This co-culture model enables direct contact between epithelial and mesenchymal cells. We stimulated the culture with transforming growth factor (TGF) β1 as an inducer of tissue remodeling for 21 days, and measured gel size, histological changes, and expression of factors related to extracellular matrix homeostasis. RESULTS:TGF-β1 exerted a concentration-dependent effect on collagen gel contraction and on contractile myofibroblasts in the mesenchymal collagen layer. TGF-β1 also induced expression of the mesenchymal marker vimentin in the basal layer of the epithelium, suggesting the induction of epithelial-mesenchymal transition. In addition, the expression of various genes encoding extracellular matrix proteins was upregulated. Fibrotic tenascin-C accumulated in the sub-epithelial region of the co-culture model. CONCLUSION:Our findings indicate that TGF-β1 can affect both epithelial and mesenchymal cells, and induce gel contraction and structural changes. Our novel in vitro co-culture model will be a useful tool for investigating the roles of epithelial cells, fibroblasts, and their interactions in the airway remodeling process.
journal_name
Respir Resjournal_title
Respiratory researchauthors
Ishikawa S,Ishimori K,Ito Sdoi
10.1186/s12931-017-0680-0subject
Has Abstractpub_date
2017-11-22 00:00:00pages
195issue
1eissn
1465-9921issn
1465-993Xpii
10.1186/s12931-017-0680-0journal_volume
18pub_type
杂志文章abstract::The lung responds to a variety of insults in a remarkably consistent fashion but with inconsistent outcomes that vary from complete resolution and return to normal to the destruction of normal architecture and progressive fibrosis. Increasing evidence indicates that diffuse lung disease results from an imbalance betwe...
journal_title:Respiratory research
pub_type: 杂志文章,评审
doi:10.1186/rr177
更新日期:2002-01-01 00:00:00
abstract:BACKGROUND:Osteoporosis is one of the systemic features of COPD. A correlation between the emphysema phenotype of COPD and reduced bone mineral density (BMD) is suggested by some studies, however, the mechanisms underlying this relationship are unclear. Experimental studies indicate that IL-1β, IL-6 and TNF-α may play ...
journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/1465-9921-12-157
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abstract:BACKGROUND:The human small airway epithelium (SAE) plays a central role in the early events in the pathogenesis of most inherited and acquired lung disorders. Little is known about the molecular phenotypes of the specific cell populations comprising the SAE in humans, and the contribution of SAE specific cell populatio...
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doi:10.1186/s12931-020-01442-9
更新日期:2020-07-29 00:00:00
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journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/1465-9921-8-90
更新日期:2007-12-04 00:00:00
abstract::A new international statement defines usual interstitial pneumonia (UIP) which is a histological and radiological form of idiopathic pulmonary fibrosis (IPF) more precisely than previously. In the diagnosis of IPF, either in high resolution computed tomography (HRCT) a UIP pattern must be present or alternatively spec...
journal_title:Respiratory research
pub_type: 杂志文章,评审
doi:10.1186/1465-9921-14-43
更新日期:2013-04-15 00:00:00
abstract:BACKGROUND:Evidence suggests that dendritic cells accumulate in the lungs of COPD patients and correlate with disease severity. We investigated the importance of IL-1R1 and its ligands IL-1α and β to dendritic cell accumulation and maturation in response to cigarette smoke exposure. METHODS:Mice were exposed to cigare...
journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/1465-9921-13-81
更新日期:2012-09-19 00:00:00
abstract:BACKGROUND:Allergen-containing subpollen particles (SPP) are released from whole plant pollen upon contact with water or even high humidity. Because of their size SPP can preferentially reach the lower airways where they come into contact with surfactant protein (SP)-D. Our previous work demonstrated that SP-D increase...
journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/1465-9921-11-83
更新日期:2010-06-22 00:00:00
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journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/1465-9921-9-34
更新日期:2008-04-21 00:00:00
abstract:BACKGROUND:Radiation pneumonitis (RP) is a frequent complication of concurrent chemoradiotherapy (CCRT) and is associated with severe symptoms that decrease quality of life and might result in pulmonary fibrosis or death. The aim of this study is to identify whether pulmonary function test (PFT) abnormalities may predi...
journal_title:Respiratory research
pub_type: 杂志文章,多中心研究
doi:10.1186/s12931-018-0775-2
更新日期:2018-04-24 00:00:00
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journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/1465-9921-13-63
更新日期:2012-07-31 00:00:00
abstract:BACKGROUND:Although feelings of anxiety and depression are common in patients with chronic obstructive pulmonary disease (COPD), little is known about the estimates of their incidence in patients with asthma-COPD overlap (ACO), which has been described and acknowledged as a distinct clinical entity. We aimed to estimat...
journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/s12931-019-1039-5
更新日期:2019-04-30 00:00:00
abstract:BACKGROUND:Acute respiratory distress syndrome (ARDS) is a severe form of lung injury characterized by damage to the epithelial barrier with subsequent pulmonary edema and hypoxic respiratory failure. ARDS is a significant medical problem in intensive care units with associated high care costs. There are many potential...
journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/s12931-018-0856-2
更新日期:2018-08-22 00:00:00
abstract:BACKGROUND:Dual bronchodilator therapy is recommended for symptomatic patients with chronic obstructive pulmonary disease (COPD). There are limited data on effects of a combination of two long-acting bronchodilators on lung function including body plethysmography. METHODS:This multicentre, randomised, double-blind, si...
journal_title:Respiratory research
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1186/s12931-016-0498-1
更新日期:2017-01-11 00:00:00
abstract:BACKGROUND:Chronic obstructive pulmonary disease (COPD) is characterised by pulmonary and systemic inflammation which flare-up during episodes of acute exacerbation (AECOPD). Given the role of Toll-like receptors (TLRs) in the induction of inflammatory responses we investigated the involvement of TLRs in COPD pathogene...
journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/1465-9921-7-64
更新日期:2006-04-10 00:00:00
abstract:BACKGROUND:Functional deterioration in cystic fibrosis (CF) may be reflected by increasing bronchial obstruction and, as recently shown, by ventilation inhomogeneities. This study investigated which physiological factors (airway obstruction, ventilation inhomogeneities, pulmonary hyperinflation, development of trapped ...
journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/1465-9921-7-138
更新日期:2006-11-30 00:00:00
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journal_title:Respiratory research
pub_type: 杂志文章,评审
doi:10.1186/s12931-016-0385-9
更新日期:2016-06-01 00:00:00
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journal_title:Respiratory research
pub_type: 杂志文章,meta分析,评审
doi:10.1186/1465-9921-13-117
更新日期:2012-12-21 00:00:00
abstract:BACKGROUND:To assess the symptomatic and cost burden among patients initiating long-acting bronchodilator (LABD) therapy and impact of adherence on healthcare resource use and costs. METHODS:This retrospective cohort study identified patients with COPD who were newly prescribed a LABD (long-acting muscarinic antagonis...
journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/s12931-015-0295-2
更新日期:2015-11-16 00:00:00
abstract::Respiratory diseases including asthma and chronic obstructive pulmonary disease (COPD) are characterised by excessive and persistent inflammation. Current treatments are often inadequate for symptom and disease control, and hence new therapies are warranted. Recent emerging research has implicated dyslipidaemia in pul...
journal_title:Respiratory research
pub_type: 杂志文章,评审
doi:10.1186/s12931-017-0526-9
更新日期:2017-02-28 00:00:00
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journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/1465-9921-11-136
更新日期:2010-10-05 00:00:00
abstract::The language of science should be objective and detached and should place data in the appropriate context. The aim of this commentary was to explore the notion that recent trends in the use of language have led to a loss of objectivity in the presentation of scientific data. The relationship between the value-laden vo...
journal_title:Respiratory research
pub_type: 社论
doi:10.1186/1465-9921-10-35
更新日期:2009-05-11 00:00:00
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journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/1465-9921-13-60
更新日期:2012-07-23 00:00:00
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journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/1465-9921-7-111
更新日期:2006-08-21 00:00:00
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journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/1465-9921-6-86
更新日期:2005-07-31 00:00:00
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journal_title:Respiratory research
pub_type: 杂志文章,评审
doi:10.1186/s12931-018-0846-4
更新日期:2018-08-06 00:00:00
abstract:BACKGROUND:Resident stem and progenitor cells have been identified in the lung over the last decade, but isolation and culture of these cells remains a challenge. Thus, although these lung stem and progenitor cells provide an ideal source for stem-cell based therapy, mesenchymal stem cells (MSCs) remain the most popula...
journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/s12931-017-0611-0
更新日期:2017-06-30 00:00:00
abstract::Small airways disease (SAD) is a cardinal feature of chronic obstructive pulmonary disease (COPD) first recognized in the nineteenth century. The diverse histopathological features associated with SAD underpin the heterogeneous nature of COPD. Our understanding of the key molecular mechanisms which drive the pathologi...
journal_title:Respiratory research
pub_type: 杂志文章,评审
doi:10.1186/s12931-019-1017-y
更新日期:2019-03-04 00:00:00
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journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/s12931-016-0452-2
更新日期:2016-10-27 00:00:00
abstract:BACKGROUND:Fibrocytes are implicated in Idiopathic Pulmonary Fibrosis (IPF) pathogenesis and increased proportions in the circulation are associated with poor prognosis. Upon tissue injury, fibrocytes migrate to the affected organ. In IPF patients, circulating fibrocytes are increased especially during exacerbations, h...
journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/s12931-018-0798-8
更新日期:2018-05-10 00:00:00
abstract:BACKGROUND:A multitude of epidemiological studies have shown that ambient fine particulate matter 2.5 (diameter < 2.5um; PM2.5) was associated with increased morbidity and mortality of chronic obstructive pulmonary disease (COPD). However, the underlying associated mechanisms have not yet been elucidated. We conducted ...
journal_title:Respiratory research
pub_type: 杂志文章
doi:10.1186/s12931-019-1081-3
更新日期:2019-06-13 00:00:00