کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10941048 | 1095555 | 2012 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dendritic cell reprogramming by the hypoxic environment
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کلمات کلیدی
PO2CDPsTREM-1Plasmacytoid DCsJIAHREHIFNF-κBIRSPAMPsDAMPsMDPspDCs - pDC هاJuvenile idiopathic arthritis - آرتریت ایدئوپاتیک نوجوانانinflammation - التهاب( توروم) damage-associated molecular patterns - الگوهای مولکولی مرتبط با آسیبpathogen-associated molecular patterns - الگوهای مولکولی مرتبط با پاتوژنGene regulation - تنظیم ژنDendritic cells - سلول های دندریتیکhypoxia-responsive element - عنصر حساس به هیپوکسیHypoxia-inducible factor - فاکتور القاء کننده هیپوکسیnuclear factor-κB - فاکتور هسته ای κBmononuclear phagocytes - فاگوسیت های تک هسته ایPartial oxygen pressure - فشار اکسیژن جزئیbone marrow - مغز استخوانHypoxia - هیپوکسی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
بیولوژی سلول
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Myeloid dendritic cells (DCs) are professional antigen-presenting cells central to the orchestration of innate and acquired immunity and the maintenance of self-tolerance. The local microenvironment contributes to the regulation of DC development and functions, and deregulated DC responses may result in amplification of inflammation, loss of tolerance, or establishment of immune escape mechanisms. DC generation from monocytic precursors recruited at sites of inflammation, tissue damage, or neoplasia occurs under condition of low partial oxygen pressure (pO2, hypoxia). We reviewed the literature addressing the phenotypic and functional changes triggered by hypoxia in monocyte-derived immature (i) and mature (m) DCs. The discussion will revolve around in vitro studies of gene expression profile, which give a comprehensive representation of the complexity of response of these cells to low pO2. The gene expression pattern of hypoxic DC will be discussed to address the question of the relationship with a specific maturation stage. We will summarize data relative to the regulation of the chemotactic network, which points to a role for hypoxia in promoting a migratory phenotype in iDCs and a highly proinflammatory state in mDCs. Current knowledge of the strict regulatory control exerted by hypoxia on the expression of immune-related cell surface receptors will also be addressed, with a particular focus on a newly identified marker of hypoxic DCs endowed with proinflammatory properties. Furthermore, we discuss the literature on the transcription mechanisms underlying hypoxia-regulated gene expression in DCs, which support a major role for the HIF/HRE pathway. Finally, recent advances shedding light on the in vivo influence of the local hypoxic microenvironment on DCs infiltrating the inflamed joints of juvenile idiopathic arthritis patients are outlined.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Immunobiology - Volume 217, Issue 12, December 2012, Pages 1241-1249
Journal: Immunobiology - Volume 217, Issue 12, December 2012, Pages 1241-1249
نویسندگان
Maria Carla Bosco, Luigi Varesio,