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IgE response to staphylococcal enterotoxins in adenoid tissues from atopic children.

Authors
Shin, SY; Choi, GS; Lee, KH; Kim, SW; Cho, JS; Park, HS
Citation
The Laryngoscope, 119(1):171-175, 2009
Journal Title
The Laryngoscope
ISSN
0023-852X1531-4995
Abstract
OBJECTIVES/HYPOTHESIS: To evaluate local production of staphylococcal superantigen (SAg)-specific IgE in adenoid tissue and to compare its prevalence with that in the tonsil and serum, as well as its relationship with markers of allergic inflammation within adenoid tissue. STUDY DESIGN: Prospective randomized study. METHODS: We recruited 18 atopic children who had rhinitis symptoms and were sensitized to more than one common aeroallergen, and 22 nonatopic children undergoing adenotonsillectomy. Immunoassays were performed using adenoid tissue homogenate to quantify the levels of three staphylococcal SAg-specific IgE (SEA, SEB, and TSST-1), total IgE, eosinophil cationic protein (ECP), mast cell tryptase, and soluble CD23. RESULTS: Three kinds of SAg-specific IgE were detected in the adenoid and tonsil tissues of atopic patients, but not in those of nonatopic patients. In atopic children, the prevalence of SEA-, SEB-, and TSST-1-specific IgE in adenoid tissues (61.1%, 27.8%, 33.3%, respectively) were higher than those in tonsil tissues (38.9%, 5.6%, 11.1%, respectively) and in sera (11.1%, 27.8%, 16.7%, respectively). Subjects with high SEA levels showed significantly higher serum and adenoid total IgE, with higher eosinophilia. Significant correlations were noted between SAg-specific IgE levels and tryptase levels in adenoid tissue. CONCLUSIONS: Local specific IgE response to staphylococcal SAgs, especially SEA may contribute to ongoing allergic inflammation in adenoid tissue from atopic children.
MeSH terms
Adenoids/immunology*AdolescentBacterial Toxins/immunology*ChildChild, PreschoolEnterotoxins/immunology*Eosinophilia/immunology*FemaleHumansImmunoglobulin E/immunology*MalePalatine Tonsil/immunologyProspective StudiesRhinitis, Allergic, Perennial/immunology*Staphylococcus/immunology*Superantigens/immunology*
DOI
10.1002/lary.20046
PMID
19117319
Appears in Collections:
Journal Papers > School of Medicine / Graduate School of Medicine > Allergy
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