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https://www.readbyqxmd.com/read/29350016/biomarkers-of-treatment-efficacy-in-patients-with-chronic-spontaneous-urticaria
#1
M Sánchez-Borges, A Capriles-Hulett, F Caballero-Fonseca, L González-Aveledo
Background. Currently there are no biomarkers useful to predict the future evolution and the therapeutic response in patients with chronic spontaneous urticaria (CSU). Objective. To review the available information on biomarkers that might be applied for the follow up of the response to guideline recommended therapies for CSU. Methods. A review of the medical literature on CSU potential clinical and laboratory biomarkers in PubMed and MEDLINE including the terms urticaria, chronic urticaria, chronic idiopathic urticaria, chronic spontaneous urticaria, antihistamines (AHs), omalizumab (OMA), cyclosporine (CyA), and treatment...
January 2018: European Annals of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29276415/crth2-antagonists-in-asthma-current-perspectives
#2
REVIEW
Dave Singh, Arjun Ravi, Thomas Southworth
Chemoattractant receptor-homologous molecule expressed on TH2 cells (CRTH2) binds to prostaglandin D2. CRTH2 is expressed on various cell types including eosinophils, mast cells, and basophils. CRTH2 and prostaglandin D2 are involved in allergic inflammation and eosinophil activation. Orally administered CRTH2 antagonists are in clinical development for the treatment of asthma. The biology and clinical trial data indicate that CRTH2 antagonists should be targeted toward eosinophilic asthma. This article reviews the clinical evidence for CRTH2 involvement in asthma pathophysiology and clinical trials of CRTH2 antagonists in asthma...
2017: Clinical Pharmacology: Advances and Applications
https://www.readbyqxmd.com/read/29247993/interleukin-33-il-33-a-nuclear-cytokine-from-the-il-1-family
#3
REVIEW
Corinne Cayrol, Jean-Philippe Girard
Interleukin-33 (IL-33) is a tissue-derived nuclear cytokine from the IL-1 family abundantly expressed in endothelial cells, epithelial cells and fibroblast-like cells, both during homeostasis and inflammation. It functions as an alarm signal (alarmin) released upon cell injury or tissue damage to alert immune cells expressing the ST2 receptor (IL-1RL1). The major targets of IL-33 in vivo are tissue-resident immune cells such as mast cells, group 2 innate lymphoid cells (ILC2s) and regulatory T cells (Tregs)...
January 2018: Immunological Reviews
https://www.readbyqxmd.com/read/29221580/mechanisms-of-allergen-immunotherapy-for-inhaled-allergens-and-predictive-biomarkers
#4
REVIEW
Mohamed H Shamji, Stephen R Durham
Allergen immunotherapy is effective in patients with IgE-dependent allergic rhinitis and asthma. When immunotherapy is given continuously for 3 years, there is persistent clinical benefit for several years after its discontinuation. This disease-modifying effect is both antigen-specific and antigen-driven. Clinical improvement is accompanied by decreases in numbers of effector cells in target organs, including mast cells, basophils, eosinophils, and type 2 innate lymphoid cells. Immunotherapy results in the production of blocking IgG/IgG4 antibodies that can inhibit IgE-dependent activation mediated through both high-affinity IgE receptors (FcεRI) on mast cells and basophils and low-affinity IgE receptors (FcεRII) on B cells...
December 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29167414/biomarkers-related-to-respiratory-symptoms-and-lung-function-in-adults-with-asthma
#5
Lucia Calciano, Laura Portas, Angelo Guido Corsico, Mario Olivieri, Paolo Degan, Marcello Ferrari, Alessandro Fois, Anna Maria Fratta Pasini, Andrea Pasini, Maria Elisabetta Zanolin, Roberto de Marco, Simone Accordini
There is a need for easily measurable biomarkers that are able to identify different levels of asthma severity. Aim. To assess the association between peripheral blood cell counts, fractional nitric oxide in exhaled air (FeNO), urinary biomarkers of oxidative stress (8-hydroxy-2'-deoxyguanosine and 8-isoprostane), and asthma severity in adult patients from the general population. Methods. In the Gene Environment Interactions in Respiratory Diseases study, 287 subjects with asthma (aged 20-64) were identified from the general population in Verona (Italy) (2008-2010)...
November 23, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/29157860/advances-in-rhinitis-models-and-mechanisms
#6
REVIEW
Anne K Ellis, Mark W Tenn
OBJECTIVE: To summarize studies highlighting recent advances in rhinitis-related research in the past 2 years. DATA SOURCES: Original research articles were procured and examined from the Rhinitis and Upper Airway Disease section of the 2015 to 2017 Annals of Allergy, Asthma & Immunology issues. Additional original research articles were identified from PubMed and Google Scholar using the following search terms: allergic rhinitis, rhinitis, chronic rhinosinusitis, environmental exposure unit, and nasal allergen challenge...
November 18, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/29149416/history-of-histamine-releasing-factor-hrf-translationally-controlled-tumor-protein-tctp-including-a-potential-therapeutic-target-in-asthma-and-allergy
#7
Susan M MacDonald
Histamine-releasing factor (HRF) also known as translationally controlled tumor protein (TCTP) is a highly conserved, ubiquitous protein that has both intracellular and extracellular functions. Here we will highlight the subcloning of the molecule, its clinical implications, as well as an inducible-transgenic mouse. Particular attention will be paid to its extracellular functioning and its potential role as a therapeutic target in asthma and allergy. The cells and the cytokines that are produced when stimulated or primed by HRF/TCTP will be detailed as well as the downstream signaling pathway that HRF/TCTP elicits...
2017: Results and Problems in Cell Differentiation
https://www.readbyqxmd.com/read/29135514/prevalence-and-clinical-characteristics-of-local-allergic-rhinitis-to-house-dust-mites
#8
Yoo Seob Shin, Chang-Gyu Jung, Hae-Sim Park
PURPOSE OF REVIEW: Local allergic rhinitis (LAR) is a recently classified subtype of rhinitis defined by a nasal allergic response in patients without systemic evidence of atopy. Recent studies have reported the prevalence, clinical course, culprit allergens, diagnostic methods and treatment outcomes of LAR. The purpose of this review is to summarize the most relevant and updated scientific evidence for LAR, especially focusing on its prevalence and clinical characteristics. RECENT FINDINGS: LAR is found in a significant proportion (3...
November 14, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28939412/th1-signatures-are-present-in-the-lower-airways-of-children-with-severe-asthma-regardless-of-allergic-status
#9
Julia A Wisniewski, Lyndsey M Muehling, Jacob D Eccles, Brian J Capaldo, Rachana Agrawal, Debbie-Ann Shirley, James T Patrie, Lisa J Workman, Alexander J Schuyler, Monica G Lawrence, W Gerald Teague, Judith A Woodfolk
BACKGROUND: The pathogenesis of severe asthma in childhood remains poorly understood. OBJECTIVE: To construct the immunological landscape in the airways of children with severe asthma. METHODS: Comprehensive analysis of multiple cell types and mediators was performed by flow cytometry and multiplex assay using bronchoalveolar lavage (BAL) specimens (n=68) from 52 highly characterized allergic and non-allergic children (0.5-17 years) with severe treatment-refractory asthma...
September 19, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28921377/basophils-activated-via-tlr-signaling-may-contribute-to-pathophysiology-of-type-1-autoimmune-pancreatitis
#10
Masato Yanagawa, Kazushige Uchida, Yugo Ando, Takashi Tomiyama, Takashi Yamaguchi, Tsukasa Ikeura, Toshiro Fukui, Akiyoshi Nishio, Yoshiko Uemura, Takayuki Miyara, Hiroyuki Okamoto, Souhei Satoi, Kazuichi Okazaki
BACKGROUND: Pathophysiology of type 1 autoimmune pancreatitis (AIP) is still unclear. We previously reported that M2 macrophages might play an important role in type 1 AIP. Recently, it has been reported that basophils regulate differentiation to M2 macrophages. In this study, we investigated basophils from the pancreatic tissue and peripheral blood of individuals with type 1 AIP. METHODS: By using immunohistochemistry, we investigated basophils in pancreatic tissue from 13 patients with type 1 AIP and examined expression of toll-like receptors (TLRs) by these cells...
September 18, 2017: Journal of Gastroenterology
https://www.readbyqxmd.com/read/28853918/human-bronchial-epithelial-cell-derived-factors-from-severe-asthmatic-subjects-stimulate-eosinophil-differentiation
#11
Brittany M A Salter, Steven G Smith, Manali Mukherjee, Sophie Plante, Sakktee Krisna, Graeme Nusca, John Paul Oliveria, Anam Irshad, Gail M Gauvreau, Jamila Chakir, Parameswaran Nair, Roma Sehmi
RATIONALE: Activated bronchial epithelial cells release alarmins, including thymic stromal lymphopoietin (TSLP) that drive type 2 inflammatory responses. We hypothesize that bronchial epithelial-derived factors enhance in situ eosinophil differentiation and maturation from myeloid precursors, a process that is driven by an IL-5 rich micro-environment within asthma airways. METHODS: To assess the eosinophilopoietic potential of epithelial-derived factors, eosinophil/basophil colony forming units (Eo/B-CFU) were enumerated in 14-day methylcellulose cultures of blood-derived mononuclear cells (NAMNCs) incubated with bronchial epithelial cell supernatants (BECSN) from healthy non-atopic controls (NC; n = 8), mild atopic asthmatics (MA; n = 9) and severe asthmatics (SA; n = 5)...
August 30, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28743424/blood-eosinophil-to-basophil-ratio-in-patients-with-sinonasal-polyps-does-it-have-a-clinical-role
#12
Giuseppe Brescia, Umberto Barion, Claudia Zanotti, Francesco Cinetto, Luciano Giacomelli, Alessandro Martini, Gino Marioni
BACKGROUND: In a recent preliminary study, eosinophil and basophil counts were calculated in chronic rhinosinusitis with nasal polyps (CRSwNP) using conventional histologic and immunohistochemical methods. The tissue eosinophil-to-basophil ratio differed in the CRSwNP endotypes considered. OBJECTIVE: To compare the blood eosinophil-to-basophil ratio (bEBR) in a large series of patients with CRSwNP with that in a control group of consecutive rhinological patients with no evidence of nasal, paranasal, or systemic inflammatory disorders...
September 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28737932/ins-and-outs-in-environmental-and-occupational-safety-studies-of-asthma-and-engineered-nanomaterials
#13
Marina A Dobrovolskaia, Michael R Shurin, Valerian E Kagan, Anna A Shvedova
According to the Centers for Disease Control and Prevention, approximately 25 million Americans suffer from asthma. The disease total annual cost is about $56 billion and includes both the direct and indirect costs of medications, hospital stays, missed work, and decreased productivity. Air pollution with xenobiotics, bacterial agents, and industrial nanomaterials, such as carbon nanotubes, contribute to the exacerbation of this condition and are a point of particular attention in environmental toxicology as well as in occupational health and safety research...
August 22, 2017: ACS Nano
https://www.readbyqxmd.com/read/28658559/innate-and-adaptive-type-2-immunity-in-lung-allergic-inflammation
#14
REVIEW
Masato Kubo
Allergic inflammation is a type 2 immune disorder classically characterized by high levels of immunoglobulin E (IgE) and the development of Th2 cells. Asthma is a pulmonary allergic inflammatory disease resulting in bronchial hyper-reactivity. Atopic asthma is defined by IgE antibody-mediated mast cell degranulation, while in non-atopic asthma there is no allergen-specific IgE and more involvement of innate immune cells, such as basophils, group 2 innate lymphoid cells (ILC2), and eosinophils. Recently, protease allergens were shown to cause asthmatic responses in the absence of Th2 cells, suggesting that an innate cell network (IL-33/TSLP-basophil-ILC2-IL-5/IL-13 axis) can facilitate the sensitization phase of type 2 inflammatory responses...
July 2017: Immunological Reviews
https://www.readbyqxmd.com/read/28612233/targeting-the-pgd2-crth2-dp1-signaling-pathway-in-asthma-and-allergic-disease-current-status-and-future-perspectives
#15
Maciej Kupczyk, Piotr Kuna
Prostaglandin D2 (PGD2) released by degranulating mast cells is believed to play a key role in orchestrating mechanisms of inflammation in allergies and asthma. The biological effects of PGD2 are mediated by D-prostanoid (DP1), CRTH2 (DP2), and thromboxane prostanoid (TP) receptors. The CRTH2 receptor is involved in induction of migration and activation of T helper type 2 (Th2) lymphocytes, eosinophils, and basophils; up-regulation of adhesion molecules; and promotion of pro-inflammatory Th2-type cytokines (interleukin [IL]-4, 5, 13), whereas the DP receptor is associated with relaxation of smooth muscles, vasodilation, inhibition of cell migration, and apoptosis of eosinophils...
August 2017: Drugs
https://www.readbyqxmd.com/read/28581121/omalizumab-effectively-protects-against-early-and-late-allergic-responses-in-asthma-after-4-weeks
#16
J Trischler, A Lieb, M Arnold, J Schulze, M Rosewich, R Schubert, I Bottoli, S Zielen
BACKGROUND: Omalizumab is licensed for therapy in severe allergic asthma with an effect demonstrated after 8 weeks or longer treatment. As new applications for omalizumab demand precise knowledge of the onset of effects, the objective of this study was to determine the time course of the early (EAR) and late allergic reaction (LAR). MATERIALS AND METHODS: Ten patients (IgE>300 IU/mL and <700 IU/mL) with a significant response to allergen challenge were treated with omalizumab according to the approved dosing table...
June 5, 2017: Allergy
https://www.readbyqxmd.com/read/28561329/sputum-basophils-and-asthma-diagnosis-dawn-of-a-new-era
#17
EDITORIAL
M Fux, C von Garnier
No abstract text is available yet for this article.
October 2017: Allergy
https://www.readbyqxmd.com/read/28493549/transcription-factor-rbp-j-mediated-signalling-regulates-basophil-immunoregulatory-function-in-mouse-asthma-model
#18
Shuo-Yao Qu, Ya-Long He, Jian Zhang, Chang-Gui Wu
Basophils (BA) play an important role in the promotion of aberrant T helper type 2 (Th2) immune responses in asthma. It is not only the effective cell, but also modulates the initiation of Th2 immune responses. We earlier demonstrated that Notch signalling regulates the biological function of BAin vitro. However, whether this pathway plays the same role in vivo is not clear. The purpose of the present study was to investigate the effect of Notch signalling on BA function in the regulation of allergic airway inflammation in a murine model of asthma...
September 2017: Immunology
https://www.readbyqxmd.com/read/28483235/basophil-activation-test-for-inhalant-allergens-in-pediatric-patients-with-allergic-rhinitis
#19
Ismail Ogulur, Ayca Kiykim, Safa Baris, Ahmet Ozen, Ezgi Gizem Yuce, Elif Karakoc-Aydiner
OBJECTIVE: Flow cytometric quantification of in vitro basophil activation can be quite performant and reliable tool to measure IgE-dependent allergen-specific responses in allergic patients. Current study aimed to evaluate the clinical relevance of basophil activation test (BAT) for the diagnosis of pediatric grass pollen and house dust mite (HDM) allergies. METHODS: Forty-seven patients suffering from allergic rhinitis with HDM and grass pollen co-sensitization with clinical history of allergic rhinitis and/or asthma and 15 non-allergic healthy subjects were enrolled...
June 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28474843/n-glycan-in-cockroach-allergen-regulates-human-basophil-function
#20
Danh C Do, Shuang Yang, Xu Yao, Robert G Hamilton, John T Schroeder, Peisong Gao
INTRODUCTION: Cockroach allergen exposure elicits cockroach sensitization and poses an increased risk for asthma. However, the major components in cockroach allergen and the mechanisms underlying the induction of cockroach allergen-induced allergy and asthma remain largely elusive. We sought to examine the role of cockroach-associated glycan in regulating human basophil function. METHODS: N-linked glycans from naturally purified cockroach allergen Bla g 2 were characterized by MALDI-TOF mass spectrometry...
February 20, 2017: Immunity, Inflammation and Disease
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