Increase of Intermediate Monocytes in Graft-versus-Host Disease: Correlation with MDR1+Th17.1 Levels and the Effect of Prednisolone and 1α,25-Dihydroxyvitamin D3.

Increase of Intermediate Monocytes in Graft-versus-Host Disease: Correlation with MDR1+Th17.1 Levels and the Effect of Prednisolone and 1α,25-Dihydroxyvitamin D3.
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移植物抗宿主病中中间单核细胞的增加:与 MDR1 Th17 1 水平的相关性以及泼尼松龙和 1α,25-二羟基维生素 D3 的作用

DOI:
10.1016/j.bbmt.2017.08.008
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发表时间:
2017
期刊:
Biology of blood and marrow transplantation : journal of the American Society for Blood and Marrow Transplantation
影响因子:
--
通讯作者:
Holzer U
Holzer U
中科院分区:
--
文献类型:
--
作者:
Reinhardt-Heller K;Hirschberg I;Lang P;Vogl T;Handgretinger R;Wolfgang A. Bethge W;Holzer U

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移植物抗宿主病(GVHD)仍然是异基因造血干细胞移植后的主要并发症之一,主要采用糖皮质激素如泼尼松龙进行治疗。在这项研究中,单核细胞亚群、泼尼松龙和 1α,25-二羟基维生素 D3 (1α,25-(OH)2D3) 对诱导 Th17 细胞促炎亚群 (MDR+Th17.1) 的影响为 CCR6+CXCR3hiCCR4loCCR10−CD161+ 和多药耐药蛋白 1 型 (MDR1) 的稳定表达。调查了。我们的结果表明,急性 GVHD 患者的中间单核细胞增加,促进促炎性 MDR1+Th17.1 细胞的诱导。此外,泼尼松龙诱导 MDR1+Th17.1 细胞的发育,而 1α,25-(OH)2D3 则起到抗炎作用,导致 TLR4-配体 S100A8/S100A9 刺激后,在泼尼松龙存在的情况下,促炎性 MDR1+Th17.1 细胞的百分比减少。此外,1α,25-(OH)2D3 降低了单核细胞中与 T 细胞激活相关的靶标 JAK2 和 CD74 的表达水平。因此,在类固醇抵抗性 GVHD 中,1α,25-(OH)2D3 可能是单核细胞诱导的促炎性 MDR1+Th17.1 细胞发育的重要调节剂,因此可能是与糖皮质激素联合治疗 GVHD 的潜在治疗剂。
Graft-versus-host disease (GVHD) remains one of the major complications after allogeneic hematopoietic stem cell transplantation that is mainly treated with glucocorticoids such as prednisolone. In this study the influence of monocyte subpopulations, prednisolone, and 1α,25-dihydroxyvitamin D3 (1α,25-(OH)2D3) on the induction of a proinflammatory subset of Th17 cells (MDR+Th17.1) characterized by CCR6+CXCR3hiCCR4loCCR10−CD161+and stable expression of the multidrug resistance protein type 1 (MDR1) was investigated. Our results demonstrate that intermediate monocytes are increased in patients with acute GVHD, promoting the induction of proinflammatory MDR1+Th17.1 cells. Furthermore, prednisolone induces the development of MDR1+Th17.1 cells, whereas 1α,25-(OH)2D3 acts as an anti-inflammatory, leading to diminished percentages of proinflammatory MDR1+Th17.1 cells in the presence of prednisolone after stimulation with the TLR4-ligand S100A8/S100A9. Moreover, 1α,25-(OH)2D3 decreased the expression level of the targets JAK2 and CD74, both associated with T cell activation, in monocytes. Thus, in steroid-resistant GVHD, 1α,25-(OH)2D3 could be an important regulator in monocyte-induced development of proinflammatory MDR1+Th17.1 cells and might therefore be a potential therapeutic agent in combination with glucocorticoids for GVHD treatment.
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