Vitamin D and 1,25(OH)2D regulation of T cells.

Vitamin D and 1,25(OH)2D regulation of T cells.
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DOI:
10.3390/nu7043011
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发表时间:
2015-04-22
期刊:
影响因子:
5.9
通讯作者:
Yang L
Yang L
中科院分区:
医学2区
文献类型:
--
作者:
Cantorna MT;Snyder L;Lin YD;Yang L

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维生素D是T细胞的直接和间接调节剂。综述了维生素D直接调控T细胞的机制,并介绍了1,25二羟基维生素D (1,25(OH)2D)对人不变自然杀伤(iNK)T细胞作用的新初步数据。维生素D对小鼠T细胞的体内作用包括抑制T细胞增殖、抑制IFN-γ、IL-17和诱导IL-4。小鼠实验表明,1,25(OH)2D的有效性需要NKT细胞、IL-10、IL-10R和IL-4。小鼠和人T细胞的比较表明,1,25(OH)2D抑制IL-17和IFN-γ,诱导T调节性细胞和IL-4。1,25(OH)2D在小鼠和人iNKT细胞中诱导IL-4。在人和小鼠T细胞和iNKT细胞中,维生素D受体(VDR)的最佳表达需要激活72小时。此外,T细胞是125 (OH)2D的潜在自分泌源,但在激活后仅48 - 72小时。总之,这些数据支持维生素D对炎症性肠病和多发性硬化症等疾病的晚期效应,在这些疾病中,减少IL-17和IFN-γ,同时诱导IL-4和IL-10,将是有益的。
Vitamin D is a direct and indirect regulator of T cells. The mechanisms by which vitamin D directly regulates T cells are reviewed and new primary data on the effects of 1,25 dihydroxyvitamin D (1,25(OH)2D) on human invariant natural killer (iNK)T cells is presented. The in vivo effects of vitamin D on murine T cells include inhibition of T cell proliferation, inhibition of IFN-γ, IL-17 and induction of IL-4. Experiments in mice demonstrate that the effectiveness of 1,25(OH)2D requires NKT cells, IL-10, the IL-10R and IL-4. Comparisons of mouse and human T cells show that 1,25(OH)2D inhibits IL-17 and IFN-γ, and induces T regulatory cells and IL-4. IL-4 was induced by 1,25(OH)2D in mouse and human iNKT cells. Activation for 72h was required for optimal expression of the vitamin D receptor (VDR) in human and mouse T and iNKT cells. In addition, T cells are potential autocrine sources of 1,25(OH)2D but again only 48–72h after activation. Together the data support the late effects of vitamin D on diseases like inflammatory bowel disease and multiple sclerosis where reducing IL-17 and IFN-γ, while inducing IL-4 and IL-10, would be beneficial.
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