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https://www.readbyqxmd.com/read/28342933/regulation-of-airway-inflammation-and-remodeling-in-asthmatic-mice-by-tlr3-trif-signal-pathway
#1
Mei Yang, Hao-Ying Wang, Jian-Chang Chen, Jing Zhao
This paper aims to investigate the effect of Toll-like receptors 3 (TLR3)/TIR-domain-containing adapter-inducing interferon-β (TRIF) signal pathway on the airway inflammation and remodeling in asthmatic mice. C57BL/6 and TLR3(-/-) mice were randomly divided into three groups (10 mice per group), including Control group (mice inhaled phosphate buffer saline (PBS)), Asthma group (mice inhaled ovalbumin (OVA)) and polyriboinosinic-ribocytidylic acid (poly (I: C)) group (asthmatic mice were injected intraperitoneally with TLR3 agonist poly (I: C))...
March 23, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28331417/%C3%AE-tocotrienol-inhibits-tgf-%C3%AE-1-induced-contractile-phenotype-expression-of-human-airway-smooth-muscle-cells
#2
Takehito Fukushima, Akira Yamasaki, Tomoya Harada, Hiroki Chikumi, Masanari Watanabe, Ryota Okazaki, Miki Takata, Yasuyuki Hasegawa, Jun Kurai, Masaaki Yanai, Akihiro Yamamoto, Yuriko Sueda, Andrew J Halayko, Eiji Shimizu
BACKGROUND: Tocotrienols, members of the vitamin E family, exist in four different isoforms (α, β, γ and δ tocotrienol) that have can be protective against brain damage, as well as having anticancer effects in vivo and in vitro. We have shown that γ-tocotrienol inhibits human airway smooth muscle cell proliferation and migration induced by platelet-derived growth factor (PDGF)-BB by suppressing RhoA activation. In this study, we tested whether γ-tocotrienol modulates transforming growth factor (TGF) -β-induced induction of human airway smooth muscle (ASM) into a contractile phenotype and concomitant synthesis of extracellular matrix proteins...
March 2017: Yonago Acta Medica
https://www.readbyqxmd.com/read/28330503/caffeine-modulates-glucocorticoid-induced-expression-of-ctgf-in-lung-epithelial-cells-and-fibroblasts
#3
Markus Fehrholz, Kirsten Glaser, Christian P Speer, Silvia Seidenspinner, Barbara Ottensmeier, Steffen Kunzmann
BACKGROUND: Although caffeine and glucocorticoids are frequently used to treat chronic lung disease in preterm neonates, potential interactions are largely unknown. While anti-inflammatory effects of glucocorticoids are well defined, their impact on airway remodeling is less characterized. Caffeine has been ascribed to positive effects on airway inflammation as well as remodeling. Connective tissue growth factor (CTGF, CCN2) plays a key role in airway remodeling and has been implicated in the pathogenesis of chronic lung diseases such as bronchopulmonary dysplasia (BPD) in preterm infants...
March 23, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28320793/rct-of-the-effect-of-berryfruit-polyphenolic-cultivar-extract-in-mild-steroid-naive-asthma-a-cross-over-placebo-controlled-study
#4
Sharon Power, Mathew Williams, Alex Semprini, Claire Munro, Rachel Caswell-Smith, Janine Pilcher, Mark Holliday, James Fingleton, Jacquie Harper, Roger Hurst, Mark Weatherall, Richard Beasley, Irene Braithwaite
OBJECTIVE: There is preclinical evidence that consumption of berryfruit extract may reduce chronic airways inflammation and modify airway remodelling in allergen-induced models of lung inflammation. We investigated the effect of berryfruit extract on the fractional expired nitric oxide (FeNO), a biomarker of eosinophilic airways inflammation, in adults with steroid-naïve asthma. DESIGN: Randomised placebo-controlled cross-over double-blind trial. SETTING: Single-centre community-based trial...
March 20, 2017: BMJ Open
https://www.readbyqxmd.com/read/28295786/stat3-potentiates-the-ability-of-airway-smooth-muscle-cells-to-promote-angiogenesis-by-regulating-vegf-signaling
#5
Jing Lv, Baohua Sun, Zhitao Mai, Mingming Jiang, Junfeng Du
Airway angiogenesis indicates the specific vascular structure remodeling that occurs in asthma. Airway smooth muscle (ASM) cells have been reported to be capable of promoting airway angiogenesis; however, the potential mechanism is yet not fully defined. Herein, we investigated the role of signal transducer and activator of transcription 3 (STAT3), in the progress of airway angiogenesis. Western blot analysis showed that STAT3 activation was aberrantly up-regulated in ASM tissues of patients with asthma and ASM cells that were exposed to cytokines to imitate the airway conditions in patients with asthma...
March 10, 2017: Experimental Physiology
https://www.readbyqxmd.com/read/28295526/pharmacological-treatments-in-asthma-affected-horses-a-pair-wise-and-network-meta-analysis
#6
L Calzetta, P Roncada, D di Cave, L Bonizzi, A Urbani, E Pistocchini, P Rogliani, M G Matera
BACKGROUND: Equine asthma is a disease characterised by reversible airflow obstruction, bronchial hyperresponsiveness and airway inflammation following exposure of susceptible horses to specific airborne agents. Although clinical remission can be achieved in a low-airborne dust environment, repeated exacerbations may lead to irreversible airway remodelling. The available data on the pharmacotherapy of equine asthma results from several small studies, and no head-to-head clinical trials have been conducted among the available medications...
March 10, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28293414/galectin-3-an-early-predictive-biomarker-of-modulation-of-airway-remodeling-in-patients-with-severe-asthma-treated-with-omalizumab-for-36%C3%A2-months
#7
Anna Maria Riccio, Pierluigi Mauri, Laura De Ferrari, Rossana Rossi, Dario Di Silvestre, Louise Benazzi, Alessandra Chiappori, Roberto Walter Dal Negro, Claudio Micheletto, Giorgio Walter Canonica
BACKGROUND: Bronchial asthma is a heterogeneous disease characterized by three cardinal features: chronic inflammation, variable airflow obstruction, and airway hyperresponsiveness. Asthma has traditionally been defined using nonspecific clinical and physiologic variables that encompass multiple phenotypes and are treated with nonspecific anti-inflammatory therapies. Based on the modulation of airway remodeling after 12 months of anti-immunoglobulin E (IgE) treatment, we identified two phenotypes (omalizumab responder, OR; and non-omalizumab responder, NOR) and performed morphometric analysis of bronchial biopsy specimens...
2017: Clinical and Translational Allergy
https://www.readbyqxmd.com/read/28293189/investigation-into-the-role-of-pi3k-and-jak3-kinase-inhibitors-in-murine-models-of-asthma
#8
Akshaya D Wagh, Manoranjan Sharma, Jogeshwar Mahapatra, Abhijeet Chatterjee, Mukul Jain, Veeranjaneyulu Addepalli
Asthma is a clinical disorder commonly characterized by chronic eosinophilic inflammation, remodeling and hyper responsiveness of the airways. However, the kinases like Phosphoinositide 3 kinase (PI3K) and Janus kinase 3 (JAK3) are involved in mast cell proliferation, activation, recruitment, migration, and prolonged survival of inflammatory cells. The present study was designed to evaluate the in-vivo comparative effects of two kinase inhibitors on airway inflammation and airway remodeling in acute and chronic models of asthma...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28287417/the-effect-of-chinese-herbal-medicine-formula-mkg-on-allergic-asthma-by-regulating-lung-and-plasma-metabolic-alternations
#9
Meng Yu, Hong-Mei Jia, Feng-Xia Cui, Yong Yang, Yang Zhao, Mao-Hua Yang, Zhong-Mei Zou
Asthma is a chronic inflammatory disorder of the airway and is characterized by airway remodeling, hyperresponsiveness, and shortness of breath. Modified Kushen Gancao Formula (mKG), derived from traditional Chinese herbal medicines (TCM), has been demonstrated to have good therapeutic effects on experimental allergic asthma. However, its anti-asthma mechanism remains currently unknown. In the present work, metabolomics studies of biochemical changes in the lung tissue and plasma of ovalbumin (OVA)-induced allergic asthma mice with mKG treatment were performed using ultra high-performance liquid chromatography coupled with quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF/MS)...
March 10, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28284321/matrix-metalloproteinases-and-airway-remodeling-and-function-in-primary-ciliary-dyskinesia
#10
Massimo Pifferi, Andrew Bush, Davide Caramella, Maria Rita Metelli, Maria Di Cicco, Martina Piras, Giulia Gherarducci, Carlo Capristo, Fabrizio Maggi, Diego Peroni, Attilio L Boner
BACKGROUND: The balance between matrix metalloproteinases (MMPs) and their tissue inhibitors (TIMPs) is important in the regulation of airway damage. OBJECTIVE: To evaluate whether they are important in the pathophysiology of primary and secondary ciliary dyskinesia (PCD, SCD). METHODS: We measured sputum bacteriology, lung CT changes, MMPs, TIMPs and lung function in 86 patients (51 PCD, 35 SCD) in a cross-sectional study; the 10 controls studied did not have HRCT or sputum cultures...
March 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28284212/combination-of-glycopyrronium-and-indacaterol-inhibits-carbachol-induced-erk5-signal-in-fibrotic-processes
#11
Yukiko Namba, Shinsaku Togo, Miniwan Tulafu, Kotaro Kadoya, Kumi Yoneda Nagahama, Hikari Taka, Naoko Kaga, Akira Orimo, Xiangde Liu, Kazuhisa Takahashi
BACKGROUND: Airway fibrosis is one of the pathological features of chronic obstructive pulmonary disease (COPD), and recent studies revealed that acetylcholine plays an important role in the development of airway remodeling by stimulating proliferation and collagen synthesis of lung fibroblasts. This study was designed to examine the effects of a long-acting muscarinic receptor antagonist (LAMA) glycopyrronium and a long-acting β2 adrenergic receptor agonist (LABA) indacaterol on acetylcholine-mediated fibrotic responses in lung fibroblasts...
March 11, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28282577/therapeutic-efficacy-of-a-co-blockade-of-il-13-and-il-25-on-airway-inflammation-and-remodeling-in-a-mouse-model-of-asthma
#12
Fang-Qi Zhang, Xin-Peng Han, Fang Zhang, Xuan Ma, Dong Xiang, Xue-Min Yang, Hai-Feng Ou-Yang, Zhikui Li
Repeated airway inflammation and unremitting remodeling provoke irreversible pulmonary dysfunction and resistance to current drugs in patients with chronic bronchial asthma. Interleukin (IL)-13 and IL-25 play an important role in airway inflammation and remodeling in asthma. We aimed to investigate whether co-inhibiting IL-13 and IL-25 can effectively down-regulate allergen-induced airway inflammation and remodeling in mice. Mice with asthma induced by chronic exposure to ovalbumin (OVA) were given soluble IL-13 receptor α2 (sIL-13R) or soluble IL-25 receptor (sIL-25R) protein alone and in combination to neutralize the bioactivity of IL-13 and IL-25, and relevant airway inflammation and remodeling experiments were performed...
March 7, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28279671/functional-results-in-airflow-improvement-using-a-flip-flap-alar-technique-our-experience
#13
Arianna Di Stadio, Carlo Macro
INTRODUCTION: Pinched nasal point can be arising as congenital malformation or as results of unsuccessfully surgery. The nasal valve alteration due to this problem is not only an esthetic problem but also a functional one because can modify the nasal airflow. Several surgical techniques were proposed in literature, we proposed our. OBJECTIVE: The purpose of the study is the evaluation of nose airway flow using our flip-flap technique for correction of pinched nasal tip...
February 21, 2017: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28274525/epithelial-and-endothelial-cell-plasticity-in-chronic-obstructive-pulmonary-disease-copd
#14
REVIEW
Sukhwinder Singh Sohal
Chronic Obstructive Pulmonary Disease (COPD) is mainly caused by smoking and presents with shortness of breath that is progressive and irreversible. It is a worldwide health problem and the fourth most common cause of chronic disability and mortality (even in developed countries). It is a complex disease involving both the airway and lung parenchyma. Small-airway fibrosis is the main contributor to physiological airway dysfunction in COPD. One potential mechanism contributing to small-airway fibrosis is epithelial mesenchymal transition (EMT)...
March 2017: Respiratory Investigation
https://www.readbyqxmd.com/read/28261021/immune-cell-responses-and-mucosal-barrier-disruptions-in-chronic-rhinosinusitis
#15
REVIEW
Roza Khalmuratova, Jong-Wan Park, Hyun-Woo Shin
Chronic rhinosinusitis (CRS) is one of the most common presentations of upper airway illness and severely affects patient quality of life. Its frequency is not surprising given levels of environmental exposure to microbes, pollutants, and allergens. Inflammatory cells, inflammatory cytokine and chemokine production, and airway remodeling have been detected in the sinonasal mucosae of CRS patients, although the precise pathophysiological mechanisms causing such persistent inflammation remain unclear. Given its high prevalence and considerable associated morbidity, continued research into CRS is necessary to increase our understanding of factors likely to contribute to its pathogenesis, and facilitate the development of novel therapeutic strategies to improve treatment...
February 2017: Immune Network
https://www.readbyqxmd.com/read/28258195/systematic-analysis-of-cell-type-differences-in-the-epithelial-secretome-reveals-insights-into-the-pathogenesis-of-respiratory-syncytial-virus-induced-lower-respiratory-tract-infections
#16
Yingxin Zhao, Mohammad Jamaluddin, Yueqing Zhang, Hong Sun, Teodora Ivanciuc, Roberto P Garofalo, Allan R Brasier
Lower respiratory tract infections from respiratory syncytial virus (RSV) are due, in part, to secreted signals from lower airway cells that modify the immune response and trigger airway remodeling. To understand this process, we applied an unbiased quantitative proteomics analysis of the RSV-induced epithelial secretory response in cells representative of the trachea versus small airway bronchiolar cells. A workflow was established using telomerase-immortalized human epithelial cells that revealed highly reproducible cell type-specific differences in secreted proteins and nanoparticles (exosomes)...
March 3, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28257487/cone-beam-computed-tomography-evaluation-of-the-maxillofacial-features-of-patients-with-unilateral-temporomandibular-joint-ankylosis-undergoing-condylar-reconstruction-with-an-autogenous-coronoid-process-graft
#17
Li Liu, Jiayang Li, Huanzhong Ji, Nian Zhang, Yiyao Wang, Guangning Zheng, Hu Wang, En Luo
OBJECTIVE: To evaluate the changes in the jaws and the upper airways of unilateral temporomandibular joint ankylosis patients who underwent condylar reconstruction via autogenous coronoid process grafts using cone-beam computed tomography (CBCT). STUDY DESIGN: The 27 included patients underwent CBCT examinations at three stages: T0 (within two weeks before surgery), T1 (two weeks after surgery), and T2 (an average of 13 months after surgery). Forty items related to the maxillofacial hard tissues and the upper airway collected at the three times and the coronoid process graft volumes after surgery were compared...
2017: PloS One
https://www.readbyqxmd.com/read/28257236/human-rhinovirus-infection-of-epithelial-cells-modulates-airway-smooth-muscle-migration
#18
Sami Shariff, Christopher Shelfoon, Neil S Holden, Suzanne L Traves, Shahina Wiehler, Cora Kooi, David Proud, Richard Leigh
RATIONALE: Airway remodeling, a characteristic feature of asthma, begins in early life. Recurrent human rhinovirus (HRV) infections are a potential inciting stimulus for remodeling. One component of airway remodeling is an increase in airway smooth muscle cell mass with a greater proximity of the airway smooth muscle cells (ASMC) to the airway epithelium. We asked whether human bronchial epithelial cells infected with HRV produced mediators that are chemotactic for ASMC. METHODS: ASMC migration was investigated using the modified Boyden Chamber and the xCELLigence Real-Time Cell Analyzer...
March 3, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28256288/beneficial-effects-of-ursodeoxycholic-acid-via-inhibition-of-airway-remodelling-apoptosis-of-airway-epithelial-cells-and-th2-immune-response-in-murine-model-of-chronic-asthma
#19
S Işık, M Karaman, S Çilaker Micili, Ş Çağlayan-Sözmen, H Alper Bağrıyanık, Z Arıkan-Ayyıldız, N Uzuner, Ö Karaman
BACKGROUND AND AIMS: In previous studies, anti-inflammatory, anti-apoptotic and immunomodulatory effects of ursodeoxycholic acid (UDCA) on liver diseases have been shown. In this study, we aimed to investigate the effects of UDCA on airway remodelling, epithelial apoptosis, and T Helper (Th)-2 derived cytokine levels in a murine model of chronic asthma. METHODS: Twenty-seven BALB/c mice were divided into five groups; PBS-Control, OVA-Placebo, OVA-50mg/kg UDCA, OVA-150mg/kg UDCA, OVA-Dexamethasone...
February 27, 2017: Allergologia et Immunopathologia
https://www.readbyqxmd.com/read/28248570/the-diacetyl-exposed-human-airway-epithelial-secretome-new-insights-into-flavoring-induced-airways-disease
#20
David M Brass, William M Gwinn, Ashlee M Valente, Francine L Kelly, Christie D Brinkley, Andrew E Nagler, M Arthur Moseley, Daniel L Morgan, Scott M Palmer, Matthew W Foster
Bronchiolitis obliterans (BO) is an increasingly important lung disease characterized by fibroproliferative airway lesions and decrements in lung function. Occupational exposure to the artificial food flavoring ingredient diacetyl, commonly used to impart a buttery flavor to microwave popcorn, has been associated with BO development. In the occupational setting, diacetyl vapor is first encountered by the airway epithelium. To better understand the effects of diacetyl vapor on the airway epithelium we used an unbiased proteomic approach to characterize both the apical and basolateral secretomes of air liquid interface cultures of primary human airway epithelial cells from four unique donors after exposure to an occupationally relevant ~1100 ppm of diacetyl vapor or PBS as a control on alternating days...
March 1, 2017: American Journal of Respiratory Cell and Molecular Biology
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