کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2831840 1163819 2010 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Reoxygenation of hypoxia-differentiated dentritic cells induces Th1 and Th17 cell differentiation
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شناسی مولکولی
پیش نمایش صفحه اول مقاله
Reoxygenation of hypoxia-differentiated dentritic cells induces Th1 and Th17 cell differentiation
چکیده انگلیسی

Dendritic cells (DCs) are often exposed to various oxygen tensions under physiological and pathological conditions. However, the effects of various oxygen tensions on DC functions remain unclear. In this study, we showed that hypoxia-differentiated DCs expressed lower levels of MHC-II molecule, co-stimulatory molecules (CD80, CD86) and proinflammatory cytokines (IL-1β, IL-6, and TNF-α), but higher levels of immunoregulatory cytokine transforming growth factor-beta (TGF-β) than normoxia-differentiated DCs. Unexpectedly, re-exposure of hypoxia-differentiated DCs to saturated oxygen (reoxygenation) completely restored their mature phenotype and function. Specifically, the reoxygenated DCs induced naïve CD4+ T cells to differentiate into Th1 and Th17 effector cells, but deceased the generation of CD4+CD25+Foxp3+ regulatory T cells (Tregs). The data indicate that hypoxic microenvironment suppresses the maturation and function of murine DCs. Reoxygenation of hypoxia-differentiated DCs however results in complete recovery of their mature phenotype and function, and has strong ability to drive immune response toward a proinflammatory direction, suggesting reoxygenated DCs may contribute to inflammation of ischemia-reperfusion injury.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Molecular Immunology - Volume 47, Issue 4, January 2010, Pages 922–931
نویسندگان
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