keyword
MENU ▼
Read by QxMD icon Read
search

airway remodeling

keyword
https://www.readbyqxmd.com/read/28425576/bone-marrow-adipose-and-lung-tissue-derived-murine-mesenchymal-stromal-cells-release-different-mediators-and-differentially-affect-airway-and-lung-parenchyma-in-experimental-asthma
#1
Soraia C Abreu, Mariana A Antunes, Debora G Xisto, Fernanda F Cruz, Vivian C Branco, Elga Bandeira, Jamil Zola Kitoko, Almair F de Araújo, Ludmilla Dellatorre-Texeira, Priscilla C Olsen, Daniel J Weiss, Bruno L Diaz, Marcelo M Morales, Patricia R M Rocco
Mesenchymal stromal cells (MSCs) from different sources have differential effects on lung injury. To compare the effects of murine MSCs from bone marrow (BM), adipose tissue (AD), and lung tissue (LUNG) on inflammatory and remodeling processes in experimental allergic asthma, female C57BL/6 mice were sensitized and challenged with ovalbumin (OVA) or saline (C). Twenty-four hours after the last challenge, mice received either saline (50 µl, SAL), BM-MSCs, AD-MSCs, or LUNG-MSCs (10(5) cells per mouse in 50 µl total volume) intratracheally...
April 20, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28424691/increased-autophagy-related-5-gene-expression-is-associated-with-collagen-expression-in-the-airways-of-refractory-asthmatics
#2
Audrey H Poon, David F Choy, Fazila Chouiali, Rakhee K Ramakrishnan, Bassam Mahboub, Severine Audusseau, Andrea Mogas, Jeffrey M Harris, Joseph R Arron, Catherine Laprise, Qutayba Hamid
BACKGROUND: Fibrosis, particularly excessive collagen deposition, presents a challenge for treating asthmatic individuals. At present, no drugs can remove or reduce excessive collagen in asthmatic airways. Hence, the identification of pathways involved in collagen deposition would help to generate therapeutic targets to interfere with the airway remodeling process. Autophagy, a cellular degradation process, has been shown to be dysregulated in various fibrotic diseases, and genetic association studies in independent human populations have identified autophagy-related 5 (ATG5) to be associated with asthma pathogenesis...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28413486/cigarette-smoke-extract-promotes-proliferation-of-airway-smooth-muscle-cells-through-suppressing-c-ebp-%C3%AE-expression
#3
Pin Guan, Wentao Cai, Huapeng Yu, Zhiyong Wu, Wei Li, Jie Wu, Juan Chen, Guangqiu Feng
Cigarette smoke has been considered a major contributor to the pathogenesis of chronic obstructive pulmonary disease (COPD). In COPD patients, the airway smooth muscle layer has been observed to be markedly thickened and the proliferation of airway smooth muscle cells (ASMCs) was therefore used by the present study as a model to assess the impact of cigarette smoke extract (CSE). ASMCs were exposed to various concentrations of CSE and the proliferation of the cells was analyzed by an MTT assay. Furthermore, the expression levels of calreticulin and CCAAT/enhancer-binding protein alpha (C/EBP-α) in CSE-stimulated ASMCs were determined by polymerase chain reaction and western blot analyses...
April 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28412860/modeling-vascular-inflammation-and-atherogenicity-after-inhalation-of-ambient-levels-of-ozone-exploratory-lessons-from-transcriptomics
#4
Andrea Tham, Dominic Lullo, Sarah Dalton, Siyang Zeng, Ian van Koeverden, Mehrdad Arjomandi
BACKGROUND: Epidemiologic studies have linked inhalation of air pollutants such as ozone to cardiovascular mortality. Human exposure studies have shown that inhalation of ambient levels of ozone causes airway and systemic inflammation and an imbalance in sympathetic/parasympathetic tone. METHODS: To explore molecular mechanisms through which ozone inhalation contributes to cardiovascular mortality, we compared transcriptomics data previously obtained from bronchoalveolar lavage (BAL) cells obtained from healthy subjects after inhalational exposure to ozone (200 ppb for 4 h) to those of various cell samples from 11 published studies of patients with atherosclerotic disease using the Nextbio genomic data platform...
April 16, 2017: Inhalation Toxicology
https://www.readbyqxmd.com/read/28409681/airway-remodeling-in-asthma-is-it-fixed-or-variable
#5
Alan James
No abstract text is available yet for this article.
April 15, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28402575/impaired-proliferation-and-differentiation-of-the-conducting-airway-epithelium-associated-with-bronchiolitis-obliterans-after-sulfur-mustard-inhalation-injury-in-rats
#6
Matthew D McGraw, Jaqueline S Rioux, Rhonda B Garlick, Raymond C Rancourt, Carl W White, Livia A Veress
RationaleSulfur mustard (SM) is a chemical warfare agent that causes chronic airway remodeling. The current study's objective was to assess for changes to the bronchiolar epithelium after SM exposure to explain its contribution to chronic airway remodeling.Materials and MethodsAdult male rats were exposed to a sub-lethal dose of SM inhalation (1.0 - 1.2 mg/kg) for 50 minutes. Histological sections of the bronchiolar epithelium were analyzed for changes using H&E, trichrome, and immunofluorescent staining for acetylated tubulin (AT) and club cell secretory protein (CCSP)...
April 11, 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28402037/atrial-electrophysiological-and-molecular-remodelling-induced-by-obstructive-sleep-apnoea
#7
Devika Channaveerappa, Jacob C Lux, Kelly L Wormwood, Timothy A Heintz, Meredith McLerie, Jacqueline A Treat, Hannah King, Donia Alnasser, Robert J Goodrow, Glenn Ballard, Robert Decker, Costel C Darie, Brian K Panama
Obstructive sleep apnoea (OSA) affects 9-24% of the adult population. OSA is associated with atrial disease, including atrial enlargement, fibrosis and arrhythmias. Despite the link between OSA and cardiac disease, the molecular changes in the heart which occur with OSA remain elusive. To study OSA-induced cardiac changes, we utilized a recently developed rat model which closely recapitulates the characteristics of OSA. Male Sprague Dawley rats, aged 50-70 days, received surgically implanted tracheal balloons which were inflated to cause transient airway obstructions...
April 12, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28402030/cyclic-peptide-crretawac-attenuates-fibronectin-induced-cytokine-secretion-of-human-airway-smooth-muscle-cells-by-inhibiting-fak-and-p38-mapk
#8
Mengdi Chu, Jiani Ji, Wenhao Cao, Huojun Zhang, Dan Meng, Bangruan Xie, Shuyun Xu
α5β1 integrin is highly expressed in airway smooth muscle cells and mediate the adhesion of airway smooth muscle cells to fibronectin to regulate airway remodelling in asthma. This study aimed to investigate the effects of synthetic cyclic peptide *CRRETAWAC* on fibronectin-induced cytokine secretion of airway smooth muscle cells and the underlying mechanism. Human airway smooth muscle cells were isolated and treated with fibronectin, IL-13, *CRRETAWAC* peptide, α5β1 integrin-blocking antibody, FAK inhibitor or p38 MAPK inhibitor...
April 12, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28397820/bitter-taste-receptor-agonists-mitigate-features-of-allergic-asthma-in-mice
#9
Pawan Sharma, Roslyn Yi, Ajay P Nayak, Nadan Wang, Francesca Tang, Morgan J Knight, Shi Pan, Brian Oliver, Deepak A Deshpande
Asthma is characterized by airway inflammation, mucus secretion, remodeling and hyperresponsiveness (AHR). Recent research has established the bronchodilatory effect of bitter taste receptor (TAS2R) agonists in various models. Comprehensive pre-clinical studies aimed at establishing effectiveness of TAS2R agonists in disease models are lacking. Here we aimed to determine the effect of TAS2R agonists on features of asthma. Further, we elucidated a mechanism by which TAS2R agonists mitigate features of asthma...
April 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28393245/knockdown-of-fstl1-inhibits-pdgf%C3%A2-bb%C3%A2-induced-human-airway-smooth-muscle-cell-proliferation-and-migration
#10
Yuelin Deng, Yao Zhang, Huajie Wu, Zhaoling Shi, Xin Sun
Abnormal proliferation and migration of airway smooth muscle (ASM) cells serve roles in airway remodeling, and contribute to airway hyper‑responsiveness. Follistatin‑like protein 1 (FSTL1) is a secreted glycoprotein that belongs to the follistatin family of proteins. It was reported that in the lungs of patients suffering from severe asthma, FSTL1 is highly expressed by macrophages. However, the role of FSTL1 in ASM cell proliferation and migration remains unknown. The present study aimed to investigate the role of FSTL1 in cell proliferation and migration mediated by platelet‑derived growth factor subunit B (PDGF‑BB) in human ASM cells...
April 7, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28390425/the-roles-and-regulation-of-the-actin-cytoskeleton-intermediate-filaments-and-microtubules-in-smooth-muscle-cell-migration
#11
REVIEW
Dale D Tang, Brennan D Gerlach
Smooth muscle cell migration has been implicated in the development of respiratory and cardiovascular systems; and airway/vascular remodeling. Cell migration is a polarized cellular process involving a protrusive cell front and a retracting trailing rear. There are three cytoskeletal systems in mammalian cells: the actin cytoskeleton, the intermediate filament network, and microtubules; all of which regulate all or part of the migrated process. The dynamic actin cytoskeleton spatially and temporally regulates protrusion, adhesions, contraction, and retraction from the cell front to the rear...
April 8, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28385814/tnf%C3%AE-enhances-force-generation-in-airway-smooth-muscle
#12
Murat Dogan, Young-Soo Han, Philippe F Delmotte, Gary C Sieck
Airway inflammation is a hallmark of asthma triggering airway smooth muscle (ASM) hyperreactivity and airway remodeling. TNFα increases both agonist-induced cytosolic Ca(2+) concentration and force in ASM. The effects of TNFα on ASM force may also be due to an increase in Ca(2+) sensitivity, cytoskeletal remodeling and/or changes in contractile protein content. We hypothesized that 24-h exposure TNFα increases ASM force by changing actin and myosin heavy chain (MyHC) content and/or polymerization. Porcine ASM strips were permeabilized with 10% Triton X-100, and force was measured in response to increasing concentrations of Ca(2+) (pCa 9...
April 6, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28381600/increased-neutrophil-gelatinase-associated-lipocalin-ngal-promotes-airway-remodelling-in-chronic-obstructive-pulmonary-disease
#13
Yujie Wang, Man Jia, Xiaoyi Yan, Limin Cao, Peter J Barnes, Ian M Adcock, Mao Huang, Xin Yao
Airway remodelling is an important component of chronic obstructive pulmonary disease (COPD). Neutrophil gelatinase-associated lipocalin (NGAL) from neutrophils may drive COPD epithelial-mesenchymal transition (EMT). NGAL expression was quantified in the lungs of COPD patients and bronchoalveolar lavage fluid (BALF) of ozone-treated mice. Reticular basement membrane (RBM) thickness and E-cadherin and α-smooth muscle actin (α-SMA) expression were determined in mice airways. Effects of cigarette smoke extract (CSE) and inflammatory factors on NGAL expression in human neutrophils as well as the effects of NGAL on airway structural cells was assessed...
April 5, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28378503/il-5-stimulated-eosinophils-adherent-to-periostin-undergo-stereotypic-morphological-changes-and-adam8-dependent-migration
#14
Mats W Johansson, Manav Khanna, Valeriu Bortnov, Douglas S Annis, Christopher L Nguyen, Deane F Mosher
BACKGROUND: IL-5 causes suspended eosinophils to polarize with filamentous (F)-actin and granules at one pole and the nucleus in a specialized uropod, the "nucleopod", which is capped with P-selectin glycoprotein ligand-1 (PSGL-1). IL-5 enhances eosinophil adhesion and migration on periostin, an extracellular matrix protein upregulated in asthma by type 2 immunity mediators. OBJECTIVE: Determine how the polarized morphology evolves to foster migration of IL-5-stimulated eosinophils on a surface coated with periostin...
April 4, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28368678/functional-characterization-of-a-novel-3d-model-of-the-epithelial-mesenchymal-trophic-unit
#15
Fabio Bucchieri, Alessandro Pitruzzella, Alberto Fucarino, Antonella Marino Gammazza, Celeste Caruso Bavisotto, Vito Marcianò, Massimo Cajozzo, Giorgio Lo Iacono, Roberto Marchese, Giovanni Zummo, Stephen T Holgate, Donna E Davies
BACKGROUND/AIM: Epithelial-mesenchymal communication plays a key role in tissue homeostasis and abnormal signaling contributes to chronic airways disease such as COPD. Most in vitro models are limited in complexity and poorly represent this epithelial-mesenchymal trophic unit. We postulated that cellular outgrowth from bronchial tissue would enable development of a mucosal structure that recapitulates better in vivo tissue architecture. MATERIALS AND METHODS: Bronchial tissue was embedded in Matrigel and outgrowth cultures monitored using time-lapse microscopy, electrical resistance, light and electron microscopy...
April 3, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/28361885/exposure-to-ambient-particulate-matter-induced-copd-in-a-rat-model-and-a-description-of-the-underlying-mechanism
#16
Fang He, Baoling Liao, Jinding Pu, Chenglong Li, Mengning Zheng, Lingmei Huang, Yumin Zhou, Dongxing Zhao, Bing Li, Pixin Ran
While the health effects of air pollution have been an international public health concern since at least the 1950s, recent research has focused on two broad sources of air pollution, namely, biomass fuel (BMF) and motor vehicle exhaust (MVE). Many studies have shown associations between air pollution PM and exacerbations of pre-existing COPD, but the role of air pollution PM in the development and progression of COPD is still uncertain. The current study indicates that rats can develop pronounced COPD following chronic exposure to air pollution PM (BMF and MVE), as characterized by lung function reduction, mucus metaplasia, lung and systemic inflammation, emphysema, and small airway remodeling...
March 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28360113/directional-preference-of-airway-smooth-muscle-mass-increase-in-human-asthmatic-airways
#17
Gijs Ijpma, Alice Panariti, Anne-Marie Lauzon, James G Martin
Airway smooth muscle (ASM) orientation and morphology determine the ability of the muscle to constrict the airway. In asthma, ASM mass is increased, but it is unknown whether ASM orientation and morphology are altered as well, or whether the remodelling at the source of the mass increase is ongoing. We dissected human airway trees from asthmatic and control lungs. Stained, intact airway sections were imaged in axial projection to show ASM bundle orientation, while cross-sectional histological slides were used to assess ASM area, bundle thickness and ASM bundle to basement membrane distance...
March 30, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28358425/ormdl3-is-associated-with-airway-remodeling-in-asthma-via-the-erk-mmp-9-pathway
#18
Fei Yu, Yan Sun, Jiachen Yu, Zhen Ding, Jinrong Wang, Lanyun Zhang, Tiejing Zhang, Yun Bai, Yulin Wang
ORMDL sphingolipid biosynthesis regulator 3 (ORMDL3) has been previously implicated in asthma pathogenesis, its effect on airway remodeling remains to be elucidated. The present study examined the expression levels of ORMDL3 in a mouse model of asthma. Mice were divided into three groups: Asthmatic model (n=10), budesonide‑treated (n=10) and a control group (n=8). Asthma was induced by sensitization with ovalbumin (OVA) and aluminum hydroxide on day 1, 7 and 14. Subsequently mice were exposed to OVA three times per week from day 28...
March 30, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28353351/effects-of-human-umbilical-cord-blood-mononuclear-cells-on-respiratory-system-mechanics-in-a-murine-model-of-neonatal-lung-injury
#19
David R Mills, Quanfu Mao, Sharon Chu, Kate Falcon Girard, Morey Kraus, James F Padbury, Monique E De Paepe
BACKGROUND: Mononuclear cells (MNCs) have well-documented beneficial effects in a wide range of adult pulmonary diseases. The effects of human umbilical cord blood-derived MNCs on neonatal lung injury, highly relevant for potential autologous application in preterm newborns at risk for bronchopulmonary dysplasia (BPD), remain incompletely established. The aim of this study was to determine the long-term morphologic and functional effects of systemically delivered MNCs in a murine model of neonatal lung injury...
March 29, 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/28352168/positive-correlation-of-airway-resistance-and-serum-asymmetric-dimethylarginine-level-in-copd-patients-with-systemic-markers-of-low-grade-inflammation
#20
Gabor Tajti, Rudolf Gesztelyi, Krisztian Pak, Csaba Papp, Sandor Keki, Magdolna Emma Szilasi, Angela Mikaczo, Andrea Fodor, Maria Szilasi, Judit Zsuga
The major feature of COPD is a progressive airflow limitation caused by chronic airway inflammation and consequent airway remodeling. Modified arginase and nitric oxide synthase (NOS) pathways are presumed to contribute to the inflammation and fibrosis. Asymmetric dimethylarginine (ADMA) may shunt L-arginine from the NOS pathway to the arginase one by uncoupling and competitive inhibition of NOS and by enhancing arginase activity. To attest the interplay of these pathways, the relationship between ADMA and airflow limitation, described by airway resistance (Raw), was investigated in a cohort of COPD patients...
2017: International Journal of Chronic Obstructive Pulmonary Disease
keyword
keyword
82478
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"