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https://www.readbyqxmd.com/read/29149777/investigating-the-association-of-adam33-single-nucleotide-polymorphisms-snps-with-susceptibility-to-allergic-asthma-in-azerbaijan-population-of-iran-a-case-control-study
#1
Ilghar Zeinaly, Mahnaz Sadeghi-Shabestrai, Zohreh Babaloo, Alireza Razavi, Mohammad Sajay-Asbaghi, Saeed Sadigh-Eteghad, Tohid Kazemi
Asthma, affecting a growing number of populations, is a clinical condition with complex cellular and genetic factors. Single nucleotide polymorphisms (SNPs) in gene coding for molecules, which play major roles in the immunopathogenesis of asthma have been considered recently as genetic predisposing factors this disease. Possible association between two SNPs in a disintegrin and metalloprotease 33 (ADAM33), which participates in airway remodeling, and susceptibility to asthma was studied in this study. 190 patients with asthma and 180 healthy controls were enrolled in this case-control study...
October 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/29143982/tweak-fn14-interaction-induces-proliferation-and-migration-in-human-airway-smooth-muscle-cells-via-activating-the-nf-%C3%AE%C2%BAb-pathway
#2
Cuimin Zhu, Leguo Zhang, Zhiming Liu, Chen Li, Yajie Bai
Asthma, an increasingly common chronic disease among children, are characterized by airway remodeling, which is partly attributed to the proliferation and migration of airway smooth muscle cell (ASMC). The purpose of the present study was to investigate potential roles and mechanisms of the tumor necrosis factor-like weak inducer of apoptosis (TWEAK)/fibroblast growth factor-inducible molecule 14 (Fn14) axis on cell proliferation and migration in HASMCs. Compared to HASMCs from non-asthmatic patients, those from asthmatic patients showed elevated expression levels of both Fn14 and TWEAK...
November 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29140397/progress-in-the-understanding-of-the-pathology-of-allergic-asthma-and-the-potential-of-fruit-proanthocyanidins-as-modulators-of-airway-inflammation
#3
REVIEW
Sara L Coleman, Odette M Shaw
Allergic asthma is a chronic inflammatory lung disease characterized by sensitization of the airways, and the development of immunoglobulin E antibodies, to benign antigens. The established pathophysiology of asthma includes recurrent lung epithelial inflammation, excessive mucus production, bronchial smooth muscle hyperreactivity, and chronic lung tissue remodeling, resulting in reversible airflow restriction. Immune cells, including eosinophils and the recently characterized type 2 innate lymphoid cells, infiltrate into the lung tissue as part of the inflammatory response in allergic asthma...
November 15, 2017: Food & Function
https://www.readbyqxmd.com/read/29140131/effects-of-inhaled-corticosteroids-on-the-expression-of-tnf-family-molecules-in-murine-model-of-allergic-asthma
#4
Fei Shi, Yarui Zhang, Chen Qiu, Yi Xiong, Manhui Li, Aijun Shan, Ying Yang, Binbin Li
BACKGROUND: The tumor necrosis factor superfamily member LIGHT (the official gene symbol approved by NCBI Gene Database), an inflammatory factor secreted by T cells after allergen exposure, recently discovered to play crucial roles in asthmatic airway remodeling. However, it is unclear whether LIGHT could be controlled by inhaled corticosteroids, a key component of asthma management. This study was to investigate the effects and potential mechanisms of inhaled budesonide on the expressions of LIGHT and its receptors (LTβR and HVEM) of lung tissues in ovalbumin-sensitized mice...
October 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/29137293/identification-of-novel-genetic-regulations-associated-with-airway-epithelial-homeostasis-using-next-generation-sequencing-data-and-bioinformatics-approaches
#5
Chau-Chyun Sheu, Ming-Ju Tsai, Feng-Wei Chen, Kuo-Feng Chang, Wei-An Chang, Inn-Wen Chong, Po-Lin Kuo, Ya-Ling Hsu
Airway epithelial cells play important roles in airway remodeling. Understanding gene regulations in airway epithelial homeostasis may provide new insights into pathogenesis and treatment of asthma. This study aimed to combine gene expression (GE) microarray, next generation sequencing (NGS), and bioinformatics to explore genetic regulations associated with airway epithelial homeostasis. We analyzed expression profiles of mRNAs (GE microarray) and microRNAs (NGS) in normal and asthmatic bronchial epithelial cells, and identified 9 genes with potential microRNA-mRNA interactions...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29122080/role-of-adenosine-monophosphate-activated-protein-kinase-on-cell-migration-matrix-contraction-and-matrix-metalloproteinase-1-and-matrix-metalloproteinase-2-production-in-nasal-polyp-derived-fibroblasts
#6
Ji-Young Um, Seoung-Ae Lee, Joo-Hoo Park, Jae-Min Shin, Il-Ho Park, Heung-Man Lee
PURPOSE: Activation of adenosine monophosphate-activated protein kinase (AMPK) by metformin, as a master regulator of metabolism, is involved in airway tissue remodeling. Here, we investigated the physical role of AMPK on cell migration, matrix contraction, and the production of matrix metalloproteinases (MMP) in nasal polyp-derived fibroblasts (NPDF). METHODS: Primary NPDFs from six patients with chronic rhinosinusitis and nasal polyps were isolated and cultured...
November 1, 2017: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29115563/ormdl3-may-participate-in-the-pathogenesis-of-bronchial-epithelial%C3%A2-mesenchymal-transition-in-asthmatic-mice-with-airway-remodeling
#7
Qi Cheng, Yunxiao Shang
Asthma is a common chronic respiratory disease in children that is caused by a complex interaction between genetic and environmental factors. Orosomucoid‑like 3 (ORMDL3) is a candidate gene that has been strongly associated with asthma; however, the underlying mechanisms are unknown. ORMDL3 regulates the expression of metalloproteinases and transforming growth factor‑β, and ORMDL3 transgenic mice exhibit increased airway remodeling. Therefore, ORMDL3 may be associated with airway remodeling. The present study attempted to examine the associations between ORMDL3 and the severity of airway remodeling in asthmatic mice, and also to determine whether ORMDL3 induces epithelial‑mesenchymal transition (EMT) in the bronchial epithelium...
November 6, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29113816/hdac2-suppresses-il17a-mediated-airway-remodeling-in-human-and-experimental-modeling-of-copd
#8
Tianwen Lai, Baoping Tian, Chao Cao, Yue Hu, Jiesen Zhou, Yong Wang, Yanping Wu, Zhouyang Li, Xuchen Xu, Min Zhang, Feng Xu, Yuan Cao, Min Chen, Dong Wu, Bin Wu, Chen Dong, Wen Li, Songmin Ying, Zhihua Chen, Huahao Shen
BACKGROUND: Airway remodeling is a central feature of chronic obstructive pulmonary disease (COPD), but the mechanisms underlying its development have not been fully elucidated. OBJECTIVE: To determine whether histone deacetylase (HDAC) 2 protects against cigarette smoke (CS)-induced airway remodeling through IL17A-dependent mechanisms. METHODS: Sputum samples and lung tissues were obtained from control subjects and patients with COPD. The relationships between HDAC2, IL17A, and airway remodeling were investigated...
November 4, 2017: Chest
https://www.readbyqxmd.com/read/29111771/staphylococcus-aureus-alpha-toxin-induces-actin-filament-remodeling-in-human-airway-epithelial-model-cells
#9
Sabine Ziesemer, Ina Eiffler, Alfrun Schönberg, Christian Müller, Falko Hochgräfe, Achim G Beule, Jan-Peter Hildebrandt
Exposure of cultured human airway epithelial model cells (16HBE14o-, S9) to Staphylococcus aureus alpha-toxin (hemolysin A, Hla) induces changes in cell morphology and cell layer integrity which are due to the inability of the cells to maintain stable cell-cell or focal contacts and to properly organize their actin cytoskeleton. The aim of this study was to identify Hla-activated signaling pathways involved in regulating the phosphorylation level of the actin depolymerizing factor cofilin. We used recombinant wild-type Hla (rHla) as well as a variant of Hla (rHla-H35L) that is unable to form functional transmembrane pores to treat immortalized human airway epithelial cells (16HBE14o-, S9) as well as freshly isolated human nasal tissue...
November 7, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/29104873/ginsenoside-rg1-attenuates-cigarette-smoke-induced-pulmonary-epithelial-mesenchymal-transition-via-inhibition-of-the-tgf-%C3%AE-1-smad-pathway
#10
Sibin Guan, Weiguo Xu, Fengfeng Han, Wen Gu, Lin Song, Wenjing Ye, Qian Liu, Xuejun Guo
Epithelial-mesenchymal transition (EMT) is a process associated with airway remodeling in chronic obstructive pulmonary disease (COPD), which leads to progressive pulmonary destruction. Panax ginseng is a traditional herbal medicine that has been shown to improve pulmonary function and exercise capacity in patients with COPD. Ginsenoside Rg1 is one of the main active components and was shown to inhibit oxidative stress and inflammation. The present study investigated the hypothesis that ginsenoside Rg1 attenuates EMT in COPD rats induced by cigarette smoke (CS) and human bronchial epithelial (HBE) cells exposed to cigarette smoke extract (CSE)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29097705/metoprolol-prevents-chronic-obstructive-sleep-apnea-induced-atrial-fibrillation-by-inhibiting-structural-sympathetic-nervous-and-metabolic-remodeling-of-the-atria
#11
Li Sun, Sen Yan, Xiaoyu Wang, Shiqi Zhao, Hui Li, Yike Wang, Shuang Lu, Xinwen Dong, Jing Zhao, Shengzhu Yu, Minghui Li, Yue Li
Chronic obstructive sleep apnea (OSA) may promote the development of atrial fibrillation (AF) by inducing atrial electrical and structural remodeling as well as autonomic nerve hyperinnervation. Here, we investigated the roles of metoprolol in regulation of atrial remodeling induced by chronic OSA. A canine model of chronic OSA was established by stopping the ventilator and closing the airway for 4 h/day every other day for 12 weeks, while metoprolol (5 mg·kg-1·day-1) was continuously administered. Using that model, we observed that increases in sympathetic sprouting and atrial structural remodeling were sharply inhibited by metoprolol...
November 2, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29097424/the-free-fatty-acid-receptor-1-promotes-airway-smooth-muscle-cell-proliferation-through-mek-erk-and-pi3k-akt-signaling-pathways
#12
Atsuko Matoba, Nao Matsuyama, Sumire Shibata, Eiji Masaki, Charles W Emala, Kentaro Mizuta
Obesity is a risk factor for asthma and influences airway hyperresponsiveness, which is in part modulated by airway smooth muscle proliferative remodeling. Plasma free fatty acids (FFAs) levels are elevated in obese individuals, and long-chain FFAs act as endogenous ligands for the free fatty acid receptor 1 (FFAR1), which couples to both Gq and Gi proteins. We examined whether stimulation of FFAR1 induces airway smooth muscle cell proliferation through classical MEK/ERK and/or PI3K/Akt signaling pathways. The long-chain FFAs (oleic acid and linoleic acid) and a FFAR1 agonist (GW9508) induced human airway smooth muscle (HASM) cell proliferation, which was inhibited by the MEK inhibitor U0126 and the PI3K inhibitor LY294002...
November 2, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/29077521/new-approaches-for-identifying-and-testing-potential-new-anti-asthma-agents
#13
Amelia Licari, Riccardo Castagnoli, Ilaria Brambilla, Alessia Marseglia, Maria Angela Tosca, Gian Luigi Marseglia, Giorgio Ciprandi
Asthma is a chronic disease with significant heterogeneity in clinical features, disease severity, pattern of underlying disease mechanisms, and responsiveness to specific treatments. While the majority of asthmatic patients are controlled by standard pharmacological strategies, a significant subgroup has limited therapeutic options representing a major unmet need. Ongoing asthma research aims to better characterize distinct clinical phenotypes, molecular endotypes, associated reliable biomarkers, and also to develop a series of new effective targeted treatment modalities...
October 27, 2017: Expert Opinion on Drug Discovery
https://www.readbyqxmd.com/read/29076828/airway-remodeling-in-asthma-update-on-mechanisms-and-therapeutic-approaches
#14
Louis-Philippe Boulet
PURPOSE OF REVIEW: The term 'airway remodeling' reflects changes in the type, quantity, and nature of airway wall components and their organization. The purpose of this review is to look at recent publications on airway remodeling in asthma. RECENT FINDINGS: Animal models and in-vitro studies have confirmed the involvement of airway epithelium, airway smooth muscle (ASM), and extracellular matrix components in asthma-related airway remodeling. They report influences on proliferation of ASM cells, and how their orientation or morphology, in addition to the heterogeneity of ASM mass at different levels of airways could influence their effects...
October 25, 2017: Current Opinion in Pulmonary Medicine
https://www.readbyqxmd.com/read/29073215/toxoplasma-gondii-serine-protease-inhibitor-1-a-new-adjuvant-candidate-for-asthma-therapy
#15
Ariadna S Soto, Ignacio M Fenoy, Vanesa R Sanchez, Florencia March, Matías D Perrone Sibilia, María de Los Angeles Aldirico, Mariano S Picchio, Nadia Arcon, Patricio L Acosta, Fernando P Polack, Valentina Martin, Alejandra Goldman
Serine-proteases are important players in the pathogenesis of asthma, promoting inflammation and tissue remodeling. It's also known that many serine protease inhibitors display immunomodulatory properties. TgPI-1 is a Toxoplasma gondii protein that exhibits broad spectrum inhibitory activity against serine proteases. In view of the increased prevalence of atopic disorders and the need to develop new treatment strategies we sought to investigate the potential of TgPI-1 for treating respiratory allergies. For this purpose, we developed a therapeutic experimental model...
2017: PloS One
https://www.readbyqxmd.com/read/29071965/-inhibitory-effect-of-acupoint-application-on-airway-remodeling-and-expression-of-tgf-%C3%AE-1-smad-3-in-the-lung-tissue-of-chronic-asthma-mice
#16
Cheng-Yong Liu, Shan Qin, Lan-Ying Liu, Ya-Min He, He-Sheng Wang, Wen-Zhong Wu, Dong Chen, Cong Zhang
OBJECTIVE: To observe the effect of acupoint application on transforming growth factor (TGF)-β 1/Smad 3 signaling pathway, so as to reveal its mechanism underlying improvement of airway remodeling in chronic asthma mice. METHODS: BALB/c mice were randomly divided into normal group,model group,sham acupoint application group (sham group),acupoint application group, and dexamethasone group (n=8 in each group). The chronic asthma model was established by intraperitoneal injection of ovalbumin sensitization...
April 25, 2017: Zhen Ci Yan Jiu, Acupuncture Research
https://www.readbyqxmd.com/read/29071866/-antiasthmatic-effects-of-different-tonifying-kidney-yin-formulas-and-their-effects-on-airway-remodeling-in-chronic-asthma
#17
Lei Tong, Lin-Lin Sun, Jin-Li Liu, Yue-Juan Gao
Both of Zuogui Wan(ZGW) and Liuwei Dihuang Wan(LWDHW) contain ingredients of Sanbufang(SBF), which have been proven to have antiasthmatic effects. In order to study the antiasthmatic effects of the three tonifying kidney-Yin formulas and their mechanisms, BALB/c mice were randomly divided into 5 groups. Chronic asthma was induced by ovalbumin. Mice in treated groups were respectively given 49.0 g•kg⁻¹ZGW, 35.0 g•kg⁻¹LWDHW and 22.4 g•kg⁻¹SBF by gavage. Those in normal and model group were given normal saline...
April 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29068567/therapeutic-administration-of-bone-marrow-derived-mesenchymal-stromal-cells-reduces-airway-inflammation-without-upregulating-tregs-in-experimental-asthma
#18
Jamil Z Kitoko, Ligia L de Castro, Ana P Nascimento, Soraia C Abreu, Fernanda F Cruz, Ana C Arantes, Debora G Xisto, Marco A Martins, Marcelo M Morales, Patricia R M Rocco, Priscilla C Olsen
BACKGROUND: Prophylactic administration of mesenchymal stromal cells (MSCs) derived from adipose (AD-MSC) and bone marrow tissue (BM-MSC) in ovalbumin-induced asthma hinders inflammation in a Treg-dependent manner. It is uncertain whether MSCs act through Tregs when inflammation is already established in asthma induced by a clinically relevant allergen. OBJECTIVE: Evaluate the effect of therapeutic administration of MSCs on inflammation and Treg cells in house dust mite (HDM)-induced asthma...
October 25, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29048769/in-vivo-implantation-of-a-tissue-engineered-stem-cell-seeded-hemi-laryngeal-replacement-maintains-airway-phonation-and-swallowing-in-pigs
#19
P Herrmann, T Ansari, A Southgate, A Varanou Jenkins, L Partington, C Carvalho, S Janes, M Lowdell, P Sibbons, M A Birchall
BACKGROUND: Laryngeal functional impairment relating to swallowing, vocalisation and respiration can be life changing and devastating for patients. A tissue engineering approach to regenerating vocal folds would represent a significant advantage over current clinical practice. METHOD: Porcine hemi-larynx were de-cellularised under negative pressure. The resultant acellular scaffold was seeded with human bone marrow derived mesenchymal stem cells and primary human epithelial cells...
October 19, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29047085/redox-dependent-calpain-signaling-in-airway-and-pulmonary-vascular-remodeling-in-copd
#20
Laszlo Kovacs, Yunchao Su
The calcium-dependent cytosolic, neutral, thiol endopeptidases, calpains, perform limited cleavage of their substrates thereby irreversibly changing their functions. Calpains have been shown to be involved in several physiological processes such as cell motility, proliferation, cell cycle, signal transduction, and apoptosis. Overactivation of calpain or mutations in the calpain genes contribute to a number of pathological conditions including neurodegenerative disorders, rheumatoid arthritis, cancer, and lung diseases...
2017: Advances in Experimental Medicine and Biology
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