Document Detail


Interleukin 17 and RANTES levels in induced sputum of patients with allergic rhinitis after a single nasal allergen challenge.
MedLine Citation:
PMID:  19927541     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Interleukin 17 (IL-17) is produced by T(H)17 cells and was recently implicated in the development of the T(H)2 cell response. RANTES (regulated on activation of normal T cells expressed and secreted), among other chemokines, plays a crucial role in chemotaxis of eosinophils into airway mucosa. According to the "united airway" hypothesis, markers of inflammation in allergic diseases are elevated in the upper and lower airways. OBJECTIVE: To assess the impact of a single nasal allergen challenge on IL-17 and RANTES levels in induced sputum of patients with allergic rhinitis (AR). METHODS: Eighteen patients with a history of AR due to grass pollen confirmed by positive skin prick test results and 10 control subjects entered the study. Initially, all the patients underwent sputum induction. A single nasal placebo challenge was performed 24 hours later, with repeated sputum induction 24 hours after challenge. After 4 weeks of washout, these procedures were repeated with allergen challenge. Differential cell counts in sputum were determined, and concentrations of IL-17 and RANTES were measured by means of enzyme-linked immunosorbent assay. RESULTS: Levels of IL-17 and RANTES significantly increased in sputum of patients with AR after allergen (but not placebo) challenge (P = .03 and P = .007, respectively). Postallergen levels of both cytokines in sputum were positively correlated (r = 0.570, P = .02). Allergen challenge led to increased total inflammatory cell (P = .005) and eosinophil (P = .03) counts in induced sputum of patients with AR. CONCLUSIONS: Nasal allergen challenge induces the enhanced secretion of IL-17 and RANTES in the lower airways of nonasthmatic patients with AR.
Authors:
Aleksandra Semik-Orzech; Adam Barczyk; Ryszard Wiaderkiewicz; Wladyslaw Pierzchala
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology     Volume:  103     ISSN:  1081-1206     ISO Abbreviation:  Ann. Allergy Asthma Immunol.     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-11-20     Completed Date:  2009-12-11     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9503580     Medline TA:  Ann Allergy Asthma Immunol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  418-24     Citation Subset:  IM    
Affiliation:
Department of Pulmonology, Medical University of Silesia, Katowice, Poland. asemik@interia.pl
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MeSH Terms
Descriptor/Qualifier:
Adult
Allergens / immunology*
Chemokine CCL5 / analysis,  biosynthesis*
Eosinophils / immunology
Female
Humans
Interleukin-17 / analysis,  biosynthesis*
Male
Nasal Provocation Tests
Rhinitis, Allergic, Perennial / immunology*
Sputum / chemistry,  immunology*
Chemical
Reg. No./Substance:
0/Allergens; 0/Chemokine CCL5; 0/Interleukin-17

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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