scholarly journals Mometasone furoate and fluticasone furoate are equally effective in restoring nasal epithelial barrier dysfunction in allergic rhinitis

2021 ◽  
Vol 14 (9) ◽  
pp. 100585
Author(s):  
Maria Doulaptsi ◽  
Tine Wils ◽  
Peter W. Hellings ◽  
Katleen Martens ◽  
Ricard Farré ◽  
...  
2019 ◽  
Vol 144 (6) ◽  
pp. 1716-1719.e5 ◽  
Author(s):  
Li-Bo Zhou ◽  
Yao-Ming Zheng ◽  
Wen-Jing Liao ◽  
Li-Juan Song ◽  
Xuan Meng ◽  
...  

2018 ◽  
Vol 141 (3) ◽  
pp. 951-963.e8 ◽  
Author(s):  
Brecht Steelant ◽  
Sven F. Seys ◽  
Laura Van Gerven ◽  
Matthias Van Woensel ◽  
Ricard Farré ◽  
...  

2020 ◽  
Vol 35 (1) ◽  
pp. 26-35
Author(s):  
Jun Wang, MS ◽  
Xue Kang, MS ◽  
Zhi-Qun Huang, MS ◽  
Li Shen, MS ◽  
Qing Luo, MD ◽  
...  

Background Protease-activated receptor-2 (PAR-2)-modulated tight junctions (TJs) have been suggested to be involved in the pathogenesis of chronic inflammatory diseases. However, immunopathogenesis remains to be investigated among patients with allergic rhinitis (AR). Objective This study sought to investigate the role of PAR-2 in the modulation of epithelial barrier function and the expression of TJs in the nasal mucosa of AR patients. Methods The expression of TJs and PAR-2 of the nasal mucosa in AR patients and control subjects by immunohistochemistry, quantitative real-time polymerase chain reaction (qRT-PCR), and western blotting. In vitro, Primary human nasal epithelial cells (pHNECs) of AR patients were stimulated by Der p1 to analyze the correlation between PAR-2 and TJs expression. Der p1-induced pHNECs were treated with the PAR-2 agonist SLIGRL-NH2 and antagonist FSLLRY-NH2. Fluorescein isothiocyanate–dextran 4 kDa detection was employed as an indicator of epithelial permeability. Results Lower expression levels of TJs in the nasal epithelium of AR patients were observed in comparison with that in control subjects. The PAR-2 level was markedly increased following treatment with 1,000 ng/mL of Der p1 for 24 hours in a cellular model of AR. The expression of PAR-2 was increased in Der p1-induced pHNECs of AR patients and correlated inversely with zonula occlidens (ZO)-1 and claudin-1. Treatment with Der p1 further downregulated TJs expression and promoted an increased epithelial permeability in Der p1-induced pHNECs. Conclusions PAR-2 could downregulate the expression of ZO-1 and claudin-1, which is involved in epithelial barrier dysfunction in AR.


2003 ◽  
Vol 307 (2) ◽  
pp. 443-449 ◽  
Author(s):  
Xiaonan Han ◽  
Takashi Uchiyama ◽  
Penny L. Sappington ◽  
Arino Yaguchi ◽  
Runkuan Yang ◽  
...  

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Linda Chia-Hui Yu

Intestinal epithelial barrier plays a critical role in the maintenance of gut homeostasis by limiting the penetration of luminal bacteria and dietary allergens, yet allowing antigen sampling for the generation of tolerance. Undigested proteins normally do not gain access to the lamina propria due to physical exclusion by tight junctions at the cell-cell contact sites and intracellular degradation by lysosomal enzymes in enterocytes. An intriguing question then arises: how do macromolecular food antigens cross the epithelial barrier? This review discusses the epithelial barrier dysfunction in sensitized intestine with special emphasis on the molecular mechanism of the enhanced transcytotic rates of allergens. The sensitization phase of allergy is characterized by antigen-induced cross-linking of IgE bound to high affinity FcεRI on mast cell surface, leading to anaphylactic responses. Recent studies have demonstrated that prior to mast cell activation, food allergens are transported in large quantity across the epithelium and are protected from lysosomal degradation by binding to cell surface IgE and low-affinity receptor CD23/FcεRII. Improved immunotherapies are currently under study including anti-IgE and anti-CD23 antibodies for the management of atopic disorders.


2006 ◽  
Vol 12 (9) ◽  
pp. 843-852 ◽  
Author(s):  
Monica Porras ◽  
Maria Teresa Martín ◽  
Ping-Chang Yang ◽  
Jennifer Jury ◽  
Mary H. Perdue ◽  
...  

2016 ◽  
Vol 7 (4) ◽  
pp. ar.2016.7.0185 ◽  
Author(s):  
Anahi Yanez ◽  
Alex Dimitroff ◽  
Peter Bremner ◽  
Chae-Seo Rhee ◽  
Graham Luscombe ◽  
...  

Background Corticosteroid nasal sprays are the mainstay of treatment for allergic rhinitis. These sprays have sensory attributes such as scent and/or odor, taste and aftertaste, and run down the throat and/or the nose, which, when unpleasant, can affect patient preference for, and compliance with, treatment. Objective This study examined patient preference for fluticasone furoate nasal spray (FFNS) or mometasone furoate nasal spray (MFNS) based on their sensory attributes after administration in patients with allergic rhinitis. Methods This was a multicenter, randomized, double-blind, cross-over study. Patient preferences were determined by using three questionnaires (Overall Preference, Immediate Attributes, and Delayed Attributes). Results Overall, 56% of patients stated a preference for FFNS versus 32% for MFNS (p < 0.001); the remaining 12% stated no preference. More patients stated a preference for FFNS versus MFNS for the attributes of “less drip down the throat” (p < 0.001), “less run out of the nose” (p < 0.05), “more soothing” (p < 0.05), and “less irritating” (p < 0.001). More patients responded in favor of FFNS versus MFNS for the immediate attributes, “run down the throat” (p < 0.001), and “run out of the nose” (p < 0.001), and, in the delayed attributes, “run down the throat” (p < 0.001), “run out of the nose” (p < 0.01), “presence of aftertaste” (p < 0.01), and “no nasal irritation” (p < 0.001). Conclusion Patients with allergic rhinitis preferred FFNS versus MFNS overall and based on a number of individual attributes, including “less drip down the throat,” “less run out of the nose,” and “less irritating.” Greater preference may improve patient adherence and thereby improve symptom management of the patient's allergic rhinitis.


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