کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9267820 1218803 2005 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of interleukin 4 on CD25+CD4+ regulatory T cell function
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی ایمونولوژی
پیش نمایش صفحه اول مقاله
Effects of interleukin 4 on CD25+CD4+ regulatory T cell function
چکیده انگلیسی
CD25+CD4+ regulatory T cells (Tregs) contribute to the maintenance of peripheral tolerance against self and non-self. The modulatory effects of cytokines, such as interleukin 4 (IL-4) on the function of Tregs have not been explored in detail. We here report that IL-4 prevents spontaneous apoptosis and the decline of foxp3 mRNA which were found to occur during culture of isolated Tregs. Tregs exposed to IL-4 were more potent in suppressing the proliferation of naïve CD4+ T cells and they better inhibited IFN-γ production by CD4+ T cells as compared to Tregs cultured in medium. IL-4 also enhanced membrane IL-2Rα (CD25) expression on Tregs above the levels observed on freshly isolated cells. IL-4-mediated effects on Treg function persisted in Tregs from Stat6−/− mice, pointing to a Stat6-independent intracellular transduction pathway. In conclusion, our data suggest that the anti-inflammatory function of IL-4 could partly be mediated by effects on Tregs function.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Autoimmunity - Volume 25, Issue 2, September 2005, Pages 112-120
نویسندگان
, , , , , , , ,