Gene and protein expression of protease-activated receptor 2 in structural and inflammatory cells in the nasal mucosa in seasonal allergic rhinitis

2006 ◽  
Vol 36 (8) ◽  
pp. 1039-1048 ◽  
Author(s):  
Q. T. Dinh ◽  
A. Cryer ◽  
M. Trevisani ◽  
S. Dinh ◽  
S. Wu ◽  
...  
2009 ◽  
Vol 23 (4) ◽  
pp. 370-376 ◽  
Author(s):  
Joon Hwan Moon ◽  
Tae Hoon Kim ◽  
Heung Man Lee ◽  
Seung Hoon Lee ◽  
Whan Choe ◽  
...  

Background The purpose of this study was to investigate the expression and distribution of superoxide anion, NADPH oxidase (NOX)1, and NOX4 in healthy, allergic nasal mucosa and nasal polyps to evaluate the possible influence of oxidative stress on the development of allergic rhinitis and nasal polyps. Methods The expression and distribution of superoxide anion, NOX1 and NOX4 were evaluated in healthy and allergic nasal mucosa and nasal polyps, using dihydroethidium fluorescence, semiquantitative reverse transcriptase-polymerase chain reaction, immunohistochemistry, and Western blot. Results NOX1 and NOX4 were localized mainly in the epithelial layer, submucosal glands, vascular endothelium, and inflammatory cells in healthy and allergic nasal mucosa and nasal polyps. The cellular source that generated superoxide anion is also localized in the epithelial cells, submucosal glands, vascular endothelium, and inflammatory cells, demonstrating the similar sites of expression of NOX1 and NOX4 in healthy and allergic nasal mucosa and nasal polyps. NOX1 and NOX4 mRNA and proteins and superoxide anions had increased levels of expression in allergic nasal mucosa and nasal polyps compared with healthy nasal mucosa. Conclusions These results indicate that NOX1 and NOX4 may play an important role in reactive oxygen species production, contributing to the oxidative stress in allergic rhinitis and nasal polyp tissues.


2005 ◽  
Vol 84 (7) ◽  
pp. 426-430 ◽  
Author(s):  
Scott Cordray ◽  
Jim B. Harjo ◽  
Linda Miner

Intranasal corticosteroids are well known to be efficacious in the treatment of allergic rhinitis. Nasal irrigation with saline, including hypertonic saline, has long been recommended for the treatment of sinonasal disease, and it has been shown to have a positive effect on the physiology of the nasal mucosa. Until now, no study of the clinical efficacy of intranasal hypertonic Dead Sea saline as a monotherapy for seasonal allergic rhinitis has been reported. We conducted a prospective, randomized, single-blind, placebo-controlled comparison of intranasal hypertonic Dead Sea saline spray and intranasal aqueous triamcinolone spray in 15 patients with seasonal allergic rhinitis. Results were based on a 7-day regimen. Based on Rhinoconjunctivitis Quality of Life Questionnaire scores, clinically and statistically significant (p < 0.0001) improvements were seen in both active-treatment groups; as expected, the corticosteroid spray was the more effective of the two treatments. No significant improvement occurred in the control group. Our preliminary results not only confirm the efficacy of intranasal corticosteroid therapy in moderate-to-severe allergic rhinitis, they also suggest that the Dead Sea saline solution can be an effective alternative in mild-to-moderate allergic rhinitis, particularly with respect to nasal and eye symptoms. The hypertonicity of the Dead Sea solution may have a positive effect on the physiology of the nasal mucosa by improving mucociliary clearance. In addition, the dominant cation in the Dead Sea solution— magnesium— probably exerts anti-inflammatory effects on the nasal mucosa and on the systemic immune response.


2007 ◽  
Vol 116 (7) ◽  
pp. 554-558 ◽  
Author(s):  
Heung-Man Lee ◽  
Hyo Yeol Kim ◽  
Hee Joon Kang ◽  
Jeong Soo Woo ◽  
Sung Won Chae ◽  
...  

Objectives: We compared the patterns of PAR-2 messenger RNA (mRNA) and protein expression in the nasal mucosa of subjects with and without allergic rhinitis. Methods: Biopsy specimens were obtained from 10 patients with allergic rhinitis and 10 normal controls. RNA was extracted from the nasal mucosa, and semiquantitative reverse transcription-polymerase chain reaction was performed for PAR-2. Tissue sections were immunostained for PAR-2 by use of specific antibody. Results: The expression levels of PAR-2 mRNA in allergic rhinitis nasal mucosa were significantly up-regulated as compared with those in normal nasal mucosa. PAR-2 immunoreactivity was observed in the epithelium and submucosal glands in both normal controls and subjects with allergic rhinitis. Stronger immunoreactivity for PAR-2 was observed in allergic rhinitis nasal mucosa as compared with normal nasal mucosa. Conclusions: These results suggest that PAR-2 may be involved in allergic nasal inflammation.


2008 ◽  
Vol 122 (7) ◽  
pp. 700-706 ◽  
Author(s):  
T Chalastras ◽  
P Nicolopoulou-Stamati ◽  
E Patsouris ◽  
A Eleftheriadou ◽  
D Kandiloros ◽  
...  

AbstractObjective:The aim of this study was to investigate expression of the neuropeptides substance P, vasoactive intestinal peptide and heat shock protein 70 in the nasal mucosa cells of patients with seasonal allergic rhinitis, in order to obtain more information on the pathophysiological and immunological role of these markers in allergic rhinitis.Material and methods:Nasal epithelium specimens obtained from 42 patients with allergic rhinitis were studied, using Shandon's Papspin liquid-based cytology method. Smears were immunostained with antibodies against substance P, vasoactive intestinal peptide and heat shock protein 70, and the results were correlated with the clinical features of seasonal allergic rhinitis.Results:A positive reaction for substance P, vasoactive intestinal peptide and heat shock protein 70 was observed in 73.8, 66.7 and 69.0 per cent of the allergic rhinitis mucosal smears, respectively. The Pearson chi-square test showed that 40.5 per cent of the immunostained smears had a positive reaction for one or two of the markers studied (i.e. substance P, vasoactive intestinal peptide or heat shock protein 70), and that 47.6 per cent of the smears had a positive reaction for all the markers (p < 0.0001).Conclusions:We found a high level of expression of substance P and vasoactive intestinal peptide in the nasal mucosa smears of patients suffering from allergic rhinitis. This indicates a role for these neuropeptides in the neuroregulation of immunity and hypersensivity in this disease. Furthermore, expression of heat shock protein 70 may contribute to the development of allergic rhinitis.


2021 ◽  
Vol 17 (1) ◽  
Author(s):  
Chengsong Liao ◽  
Yangyang Han ◽  
Zhijing Chen ◽  
Huricha Baigude

Abstract Background A formulation of black cumin (Nigella sativa L.), licorice (Glycyrrhiza glabra L.), anise (Pimpinella anisum L.) and tea (Camellia sinensis (L.) Kuntze) (denoted BLAB tea) is traditionally used to relief allergy reaction including allergic rhinitis. However, little is known about its underlining mechanism of anti-allergic effects. Methods To investigate the anti-allergenic mechanism of BLAB tea, we treated ovalbumin (OVA)-induced allergic rhinitis (AR) model of mice with BLAB tea, and elucidated its possible mechanism of action. Mice in the control group were treated with phosphate-buffered saline only. Subsequently, the infiltration of different inflammatory cells was measured. In addition, histopathological changes in the nasal mucosa, and the levels of allergen-specific cytokines and OVA-specific immunoglobulins were measured. Results The aqueous extract of BLAB significantly alleviated the nasal symptoms and reduced the accumulation of inflammatory cells in the nasal mucosa and nasal lavage fluid of AR model of mice. Conclusion The aqueous extract of BLAB induced the production of Th1 and Treg cytokines and inhibited the release of Th2 cytokines and histamine in nasal mucosa and serum of mice while decreasing the serum levels of OVA-specific IgE, IgG1, and IgG2a. These results suggest the potential of the aqueous extract of BLAB as a treatment option for allergic diseases.


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