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IL-18 gene transfer by adenovirus prevents the development of and reverses established allergen-induced airway hyperreactivity
IL-18 gene transfer by adenovirus prevents the development of and reverses established allergen-induced airway hyperreactivity JOURNAL OF IMMUNOLOGY Walter, D. M., Wong, C. P., DeKruyff, R. H., Berry, G. J., Levy, S., Umetsu, D. T. 2001; 166 (10): 6392-6398Abstract
We examined the role of IL-18 in preventing the development of and in reversing established allergen-induced airway inflammation and airway hyperreactivity (AHR), the cardinal features of asthma. IL-18, which potently induces IFN-gamma, was administered into the respiratory tract as cDNA in a replication-deficient adenovirus (Adv). Treatment of OVA-sensitized mice with the IL-18-expressing Adv reduced allergen-specific IL-4 production, airway eosinophilia, and mucus production, increased IFN-gamma production, and prevented the development of AHR. The effects of the IL-18 Adv treatment were dependent on the presence of IFN-gamma and IL-12. Moreover, administration of the IL-18 Adv to mice with established AHR greatly reduced AHR and IL-4 production and increased IFN-gamma production. These results demonstrate that IL-18, when administered by Adv into the respiratory tract, effectively reduces AHR and replaces an established Th2-biased immune response with a Th1-biased response.
View details for Web of Science ID 000170948500068
View details for PubMedID 11342664