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https://www.readbyqxmd.com/read/28231307/differential-regulation-of-c5a-receptor-1-in-innate-immune-cells-during-the-allergic-asthma-effector-phase
#1
Fanny Ender, Anna V Wiese, Inken Schmudde, Jing Sun, Tillman Vollbrandt, Peter König, Yves Laumonnier, Jörg Köhl
C5a drives airway constriction and inflammation during the effector phase of allergic asthma, mainly through the activation of C5a receptor 1 (C5aR1). Yet, C5aR1 expression on myeloid and lymphoid cells during the allergic effector phase is ill-defined. Recently, we generated and characterized a floxed green fluorescent protein (GFP)-C5aR1 knock-in mouse. Here, we used this reporter strain to monitor C5aR1 expression in airway, pulmonary and lymph node cells during the effector phase of OVA-driven allergic asthma...
2017: PloS One
https://www.readbyqxmd.com/read/28223227/mitogen-activated-protein-kinases-as-therapeutic-targets-for-asthma
#2
REVIEW
MirHojjat Khorasanizadeh, Mahsa Eskian, Erwin W Gelfand, Nima Rezaei
Corticosteroid-resistant asthmatics, although comprising only a portion of the asthma population, account for most of the morbidity, mortality and economic burden associated with asthma. Moreover, corticosteroids are not effective inhibitors of airway remodeling changes, and their long-term use is associated with debilitating systemic side effects. Therefore, potent and safe novel therapeutic alternatives, targeting basic pathophysiological mechanisms responsible for the severe asthmatic phenotype are urgently needed...
February 13, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28216537/adult-asthma-from-phenotype-to-endotype
#3
Mitsuru Munakata
No abstract text is available yet for this article.
2017: Arerugī, [Allergy]
https://www.readbyqxmd.com/read/28216530/phenotypes-in-childhood-asthma
#4
Yuichi Adachi
No abstract text is available yet for this article.
2017: Arerugī, [Allergy]
https://www.readbyqxmd.com/read/28205598/lyn-regulates-mucus-secretion-and-muc5ac-via-the-stat6-signaling-pathway-during-allergic-airway-inflammation
#5
Xiaoyun Wang, Yin Li, Deyu Luo, Xing Wang, Yun Zhang, Zhigang Liu, Nanshan Zhong, Min Wu, Guoping Li
Hypersecretion of mucus is an important component of airway remodeling and contributes to the mucus plugs and airflow obstruction associated with severe asthma phenotypes. Lyn has been shown to down-regulate allergen-induced airway inflammation. However, the role of Lyn in mucin gene expression remains unresolved. In this study, we first demonstrate that Lyn overexpression decreased the mucus hypersecretion and levels of the muc5ac transcript in mice exposed to ovalbumin (OVA). Lyn overexpression also decreased the infiltration of inflammatory cells and the levels of IL-13 and IL-4 in OVA-challenged airways...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28194433/mitochondrial-camkii-inhibition-in-airway-epithelium-protects-against-allergic-asthma
#6
Sara C Sebag, Olha M Koval, John D Paschke, Christopher J Winters, Omar A Jaffer, Ryszard Dworski, Fayyaz S Sutterwala, Mark E Anderson, Isabella M Grumbach
Excessive ROS promote allergic asthma, a condition characterized by airway inflammation, eosinophilic inflammation, and increased airway hyperreactivity (AHR). The mechanisms by which airway ROS are increased and the relationship between increased airway ROS and disease phenotypes are incompletely defined. Mitochondria are an important source of cellular ROS production, and our group discovered that Ca(2+)/calmodulin-dependent protein kinase II (CaMKII) is present in mitochondria and activated by oxidation...
February 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28188833/metabolomic-profiling-of-lung-function-in-costa-rican-children-with-asthma
#7
Rachel S Kelly, Yamini Virkud, Rachel Giorgio, Juan C Celedón, Scott T Weiss, Jessica Lasky-Su
BACKGROUND: The development of novel therapeutics and treatment regimens for the management of asthma is hindered by an incomplete understanding of its heterogeneous nature and pathophysiology. Metabolomics can provide an integrated and global profile of a biological system in a dysregulated state, making it a valuable tool to identify biomarkers along the disease development pathway and to understand the biological mechanisms driving that pathway. METHODS: Liquid Chromatography-Mass spectrometry metabolomic profiling was conducted on plasma samples provided at recruitment for 380 children with asthma from the 'Genetic Epidemiology of Asthma in Costa Rica Cohort'...
February 7, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28188709/-knowledge-and-attitudes-about-aspirin-exacerbated-respiratory-disease-among-ecuadorian-physicians
#8
Juan Carlos Calderón, Fabián Dávila, Ronnie Mantilla, Annia Chérrez, Erick Calero, Dayana Cabrera, Iván Chérrez-Ojeda
BACKGROUND: Aspirin-exacerbated respiratory disease (AERD) is an asthma phenotype that involves high costs and significant burden for health systems. OBJECTIVE: To determine the level of knowledge and attitudes towards AERD among Ecuadorian physicians. METHODS: Descriptive, observational study. A questionnaire about knowledge on the disease and attitude towards it (confidence in the treatment and importance of AERD, measured with a Likert scale) was developed...
January 2017: Revista Alergia Mexico: Organo Oficial de la Sociedad Mexicana de Alergia e Inmunología, A.C
https://www.readbyqxmd.com/read/28185773/association-of-gene-polymorphisms-in-interleukin-6-in-infantile-bronchial-asthma
#9
Eva Babusikova, Jana Jurecekova, Milos Jesenak, Andrea Evinova
INTRODUCTION: The genetic background of bronchial asthma is complex, and it is likely that multiple genes contribute to its development both directly and through gene-gene interactions. Cytokines contribute to different aspects of asthma, as they determine the type, severity and outcomes of asthma pathogenesis. Allergic asthmatics undergoing an asthmatic attack exhibit significantly higher levels of pro-inflammatory cytokines, such as interleukins and chemokines. In recent years, cytokines and their receptors have been shown to be highly polymorphic, and this prompted us to investigate interleukin 6 promoter polymorphisms at position -174G/C (rs1800795) and at -572G/C (rs1800796) in relation to asthma in children...
February 6, 2017: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/28183433/mechanisms-of-the-development-of-allergy-medall-introducing-novel-concepts-in-allergy-phenotypes
#10
REVIEW
Josep M Anto, Jean Bousquet, Mubeccel Akdis, Charles Auffray, Thomas Keil, Isabelle Momas, Dirkje S Postma, Rudolf Valenta, Magnus Wickman, Anne Cambon-Thomsen, Tari Haahtela, Bart N Lambrecht, Karin C Lodrup Carlsen, Gerard H Koppelman, Jordi Sunyer, Torsten Zuberbier, Isabelle Annesi-Maesano, Albert Arno, Carsten Bindslev-Jensen, Giuseppe De Carlo, Francesco Forastiere, Joachim Heinrich, Marek L Kowalski, Dieter Maier, Erik Melén, Henriette A Smit, Marie Standl, John Wright, Anna Asarnoj, Marta Benet, Natalia Ballardini, Judith Garcia-Aymerich, Ulrike Gehring, Stefano Guerra, Cynthia Hohmann, Inger Kull, Christian Lupinek, Mariona Pinart, Ingebjorg Skrindo, Marit Westman, Delphine Smagghe, Cezmi Akdis, Niklas Andersson, Claus Bachert, Stephane Ballereau, Ferran Ballester, Xavier Basagana, Anna Bedbrook, Anna Bergstrom, Andrea von Berg, Bert Brunekreef, Emilie Burte, Kai-Hakon Carlsen, Leda Chatzi, Jonathan M Coquet, Mirela Curin, Pascal Demoly, Esben Eller, Maria Pia Fantini, Leena von Hertzen, Vergard Hovland, Benedicte Jacquemin, Jocelyne Just, Theresa Keller, Renata Kiss, Manolis Kogevinas, Sibylle Koletzko, Susanne Lau, Irina Lehmann, Nicolas Lemonnier, Mika Mäkelä, Jordi Mestres, Peter Mowinckel, Rachel Nadif, Martijn C Nawijn, Johan Pellet, Isabelle Pin, Daniela Porta, Fanny Rancière, Emmanuelle Rial-Sebbag, Yvan Saeys, Martijn J Schuijs, Valerie Siroux, Christina G Tischer, Mathies Torrent, Raphaelle Varraso, Kalus Wenzel, Cheng-Jian Xu
Asthma, rhinitis, and eczema are complex diseases with multiple genetic and environmental factors interlinked through IgE-associated and non-IgE-associated mechanisms. Mechanisms of the Development of ALLergy (MeDALL; EU FP7-CP-IP; project no: 261357; 2010-2015) studied the complex links of allergic diseases at the clinical and mechanistic levels by linking epidemiologic, clinical, and mechanistic research, including in vivo and in vitro models. MeDALL integrated 14 European birth cohorts, including 44,010 participants and 160 cohort follow-ups between pregnancy and age 20 years...
February 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28179445/severe-asthma-phenotyping-to-endotyping-or-vice-versa
#11
EDITORIAL
Alberto Papi, Marina Saetta, Leonardo Fabbri
No abstract text is available yet for this article.
February 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28179442/t-helper-cell-type-2-th2-and-non-th2-molecular-phenotypes-of-asthma-using-sputum-transcriptomics-in-u-biopred
#12
Chih-Hsi Scott Kuo, Stelios Pavlidis, Matthew Loza, Fred Baribaud, Anthony Rowe, Iaonnis Pandis, Ana Sousa, Julie Corfield, Ratko Djukanovic, Rene Lutter, Peter J Sterk, Charles Auffray, Yike Guo, Ian M Adcock, Kian Fan Chung
Asthma is characterised by heterogeneous clinical phenotypes. Our objective was to determine molecular phenotypes of asthma by analysing sputum cell transcriptomics from 104 moderate-to-severe asthmatic subjects and 16 nonasthmatic subjects.After filtering on the differentially expressed genes between eosinophil- and noneosinophil-associated sputum inflammation, we used unbiased hierarchical clustering on 508 differentially expressed genes and gene set variation analysis of specific gene sets.We defined three transcriptome-associated clusters (TACs): TAC1 (characterised by immune receptors IL33R, CCR3 and TSLPR), TAC2 (characterised by interferon-, tumour necrosis factor-α- and inflammasome-associated genes) and TAC3 (characterised by genes of metabolic pathways, ubiquitination and mitochondrial function)...
February 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28176939/factors-associated-with-plasma-il-33-levels-in-patients-with-chronic-obstructive-pulmonary-disease
#13
Sei Won Kim, Chin Kook Rhee, Ki Uk Kim, Sang Haak Lee, Hun Gyu Hwang, Yu Il Kim, Deog Kyeom Kim, Sang Do Lee, Yeon-Mok Oh, Hyoung Kyu Yoon
BACKGROUND: Interleukin (IL)-33 promotes T helper (Th)2 immunity and systemic inflammation. The role of IL-33 in asthma has been widely investigated. IL-33 has also been suggested to play an important role in the pathogenesis of chronic obstructive pulmonary disease (COPD). This study investigated the clinical significance and usefulness of plasma IL-33 level in patients with COPD. METHODS: A total of 307 patients with stable COPD from 15 centers, who were in the Korean Obstructive Lung Disease cohort, were enrolled in this study...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28170342/linking-childhood-allergic-asthma-phenotypes-with-endotype-through-integrated-systems-biology-current-evidence-and-research-needs
#14
Hyunok Choi, Won-Min Song, Bin Zhang
Asthma and other complex diseases results from a complex web of interactions involving inflammation, immunity, cell cycle, apoptosis, and metabolic perturbations across multiple organ systems. The extent to which various degrees of the age at onset, symptom severity, and the natural progression of the disease reflect multiple disease subtypes, influenced by unique process of development remains unknown. One of the most critical challenges to our understanding stems from incomplete understanding of the mechanisms...
February 7, 2017: Reviews on Environmental Health
https://www.readbyqxmd.com/read/28167233/taste-and-smell-gpcrs-in-the-lung-evidence-for-a-previously-unrecognized-widespread-chemosensory-system
#15
REVIEW
Steven S An, Stephen B Liggett
Taste and smell receptor expression has been traditionally limited to the tongue and nose. We have identified bitter taste receptors (TAS2Rs) and olfactory receptors (ORs) on human airway smooth muscle (HASM) cells. TAS2Rs signal to PLCβ evoking an increase in [Ca(2+)]i causing membrane hyperpolarization and marked HASM relaxation ascertained by single cell, ex vivo, and in vivo methods. The presence of TAS2Rs in the lung was unexpected, as was the bronchodilatory function which has been shown to be due to signaling within specific microdomains of the cell...
February 4, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28167095/genome-wide-interaction-study-of-dust-mite-allergen-on-lung-function-in-children-with-asthma
#16
Erick Forno, Joanne Sordillo, John Brehm, Wei Chen, Takis Benos, Qi Yan, Lydiana Avila, Manuel Soto-Quirós, Michelle M Cloutier, Angel Colón-Semidey, Maria Alvarez, Edna Acosta-Pérez, Scott T Weiss, Augusto A Litonjua, Glorisa Canino, Juan C Celedón
BACKGROUND: Childhood asthma is likely the result of gene-by-environment (GxE) interactions. Dust mite is a known risk factor for asthma morbidity. Yet, there have been no genome-wide GxE studies of dust mite allergen on asthma-related phenotypes. OBJECTIVE: To identify genetic variants whose effects on lung function in children with asthma are modified by level of dust mite allergen exposure. METHODS: A genome-wide interaction analysis of dust mite allergen level and lung function was performed in a cohort of Puerto Rican children with asthma (PRGOAL)...
February 3, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28165640/significant-disparities-in-allergy-prevalence-and-microbiota-between-the-young-people-in-finnish-and-russian-karelia
#17
Lasse Ruokolainen, Laura Paalanen, Antti Karkman, Tiina Laatikainen, Leena von Hertzen, Tiina Vlasoff, Olga Markelova, Vladimir Masyuk, Petri Auvinen, Lars Paulin, Harri Alenius, Nanna Fyhrquist, Ilkka Hanski, Mika J Mäkelä, Elmira Zilber, Pekka Jousilahti, Erkki Vartiainen, Tari Haahtela
BACKGROUND: Atopic allergy has been more common among schoolchildren in Finland, as compared to Russian Karelia. These adjacent regions show one of the most contrasting socio-economically differences in the world. OBJECTIVE: We explored changes in allergy from school age to young adulthood from 2003 to 2010/2012 in these two areas. The skin and nasal microbiota were also compared. METHODS: Randomly selected children from Finnish (n = 98) and Russian Karelia (n = 82) were examined in 2003, when the children were 7-11 years of age, and again in 2010 (Finnish Karelia) and 2012 (Russian Karelia)...
February 6, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28165446/identification-of-bpifa1-splunc1-as-an-epithelium-derived-smooth-muscle-relaxing-factor
#18
Tongde Wu, Julianne Huang, Patrick J Moore, Michael S Little, William G Walton, Robert C Fellner, Neil E Alexis, Y Peter Di, Matthew R Redinbo, Stephen L Tilley, Robert Tarran
Asthma is a chronic airway disease characterized by inflammation, mucus hypersecretion and abnormal airway smooth muscle (ASM) contraction. Bacterial permeability family member A1, BPIFA1, is a secreted innate defence protein. Here we show that BPIFA1 levels are reduced in sputum samples from asthmatic patients and that BPIFA1 is secreted basolaterally from healthy, but not asthmatic human bronchial epithelial cultures (HBECs), where it suppresses ASM contractility by binding to and inhibiting the Ca(2+) influx channel Orai1...
February 6, 2017: Nature Communications
https://www.readbyqxmd.com/read/28160515/allergic-asthma-an-overview-of-metabolomic-strategies-leading-to-the-identification-of-biomarkers-in-the-field
#19
Alma Villaseñor, Domenico Rosace, David Obeso, Marina Pérez-Gordo, Tomás Chivato, Coral Barbas, Domingo Barber, María M Escribese
Allergic asthma is a prominent disease especially during childhood. Indoor allergens, in general, and particularly house dust mites (HDM) are the most prevalent sensitizers associated with allergic asthma. Available data shows that 65 to 130 million people are mite-sensitized worldwide and as many as 50% of these are asthmatic. In fact, sensitization to HDM in the first years of life can produce devastating effects on pulmonary function leading to asthmatic syndromes that can be fatal. To date, there has been considerable research into the pathological pathways and structural changes associated with allergic asthma...
February 4, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28154802/the-transition-of-sputum-inflammatory-cell-profiles-is-variable-in-stable-asthma-patients
#20
Bomi Shin, Hyouk-Soo Kwon, So Young Park, Tae-Bum Kim, Hee-Bom Moon, You Sook Cho
BACKGROUND: The sputum inflammatory cell profile is an important indicator for classifying asthma phenotypes. OBJECTIVE: To investigate if sputum inflammatory cell profile remains stable and there are different characteristics between groups that show different profile over time in stable asthmatic patients. METHODS: A total of 149 asthmatic patients, who were clinically stable at the time of sputum examination and had undergone sputum analysis twice, were subjected to a detailed review...
January 2017: Asia Pacific Allergy
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