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Airway IFN-γ Production During RSV Bronchiolitis is Associated with Eosinophilic Inflammation.
MedLine Citation:
PMID:  22160185     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
STUDY OBJECTIVE: This study was designed to investigate the possible role of IFN-γ in eosinophil degranulation that occurs during respiratory syncytial virus (RSV) bronchiolitis. METHODS: Sixty-seven infants, 2-24 months old and hospitalized with their first episode of acute RSV bronchiolitis, were selected for this study. Eosinophil-active cytokine and chemokine profiles in nasal lavage supernatants taken within the first 48 h of admission were determined by a multiplex bead array system (Luminex). Comparisons were made with control (Control group) subjects (n = 20). RESULTS: Nasal IFN-γ levels were significantly higher (P < 0.0001) in RSV bronchiolitis (median = 4.4 pg/ml) infants compared to controls (0.0 pg/ml). IFN-γ levels correlated significantly with the levels of nasal eotaxin (r = 0.566, P < 0.0001), RANTES (r = 0.627, P < 0.0001), GM-CSF (r = 0.849, P < 0.0001), and EDN (r = 0.693, P < 0.001). Nasal interleukin (IL)-4, IL-5, and IL-13 were below sensitivity levels in most RSV bronchiolitis and control subjects. CONCLUSION: These results suggest that IFN-γ may play an important role in eosinophilic inflammation in RSV bronchiolitis.
Authors:
Chang Keun Kim; Zak Callaway; Young Yull Koh; Soo-Hee Kim; Takao Fujisawa
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-13
Journal Detail:
Title:  Lung     Volume:  -     ISSN:  1432-1750     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-13     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7701875     Medline TA:  Lung     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Pediatrics, Asthma and Allergy Center, Inje University Sanggye Paik Hospital, Seoul, Korea.
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