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Topical steroid treatment of allergic rhinitis decreases nasal fluid TH2 cytokines, eosinophils, eosinophil cationic protein, and IgE but has no significant effect on IFN-gamma, IL-1beta, TNF-alpha, or neutrophils
Sahlgrenska University Hospital, Göteborg.
Sahlgrenska University Hospital, Göteborg.
Sahlgrenska University Hospital, Göteborg.
Sahlgrenska University Hospital, Göteborg.
2000 (English)In: Journal of Allergy and Clinical Immunology, ISSN 0091-6749, E-ISSN 1097-6825, Vol. 106, no 2, 307-312 p.Article in journal (Refereed) Published
Abstract [en]

BACKGROUND: Topical treatment with glucocorticoids (GCs) is known to decrease eosinophils but not neutrophils in patients with allergic rhinitis.

OBJECTIVE: We sought to examine whether the differential effects of GC treatment on eosinophils and neutrophils are mirrored by differential effects on T(H)1/T(H)2 cytokines and the neutrophil-associated cytokines IL-1beta and TNF-alpha.

METHODS: Differential counts of eosinophils and neutrophils in nasal fluids from 60 children with seasonal allergic rhinitis treated with a topical GC were examined after staining with May-Grünwald-Giemsa stain. Nasal fluid levels of IFN-gamma, IL-4, IL-6, IL-10, IL-1beta, and TNF-alpha were examined with ELISA, and IgE and eosinophil cationic protein (ECP) levels were examined with RIA.

RESULTS: After GC treatment, there was a statistically significant decrease of the T(H)2 cytokines IL-4, IL-6, and IL-10, as well as ECP and IgE. By contrast, there were no significant changes of the levels of IFN-gamma, IL-1beta, TNF-alpha, or neutrophils. In the GC-treated patients IL-1beta and TNF-alpha levels correlated with neutrophils and ECP, and IL-1beta correlated with eosinophils. Furthermore, ECP correlated with both eosinophils and neutrophils. Neither IL-1beta nor TNF-alpha correlated with IgE. Patients with high neutrophil counts after GC treatment were found to have significantly higher eosinophil counts and ECP than patients with low counts.

CONCLUSIONS: The beneficial effects of topical treatment with GC in patients with allergic rhinitis could be attributed to downregulation of T(H)2 cytokines, with an ensuing decrease of eosinophils, ECP, and IgE. It is possible that neutrophils could counteract the beneficial effects of GCs by releasing the proinflammatory cytokines IL-1beta and TNF-alpha.

Place, publisher, year, edition, pages
Elsevier, 2000. Vol. 106, no 2, 307-312 p.
Keyword [en]
Cytokines, IgE, eosinophil cationic protein, nasal fluids, glucocorticoids, allergic rhinitis
National Category
Medical and Health Sciences
URN: urn:nbn:se:liu:diva-99910DOI: 10.1067/mai.2000.108111PubMedID: 10932075OAI: diva2:658873
Available from: 2013-10-23 Created: 2013-10-23 Last updated: 2013-11-01Bibliographically approved

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Benson, Mikael
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