Teriflunomide induces Foxp3 expression in murine CD8 + T cells while IL-27 and retinoic acid exert a synergistic effect on the induction of CD39 expression on these cells.

T Maślanka, A Jasiecka-Mikołajczyk
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Abstract

The purpose of this study was to verify the possibility of pharmacological induction of Foxp3 +CD25 +CD8 + and Foxp3 -CD103 +CD8 + T regulatory cells 'armed' with immunosuppressive molecules, i.e. CD39 and IL-10. To achieve this purpose, stimulated and unstimulated murine lymphocytes were exposed to IL-27, teriflunomide (TER) and all trans retinoic acid (ATRA). The study found that: (a) IL-27 induced CD39 expression on Foxp3 +CD25 +CD8 + T cells and the ability of CD103+Foxp3-CD8+ T cells to produce IL-10 as well as increasing the absolute number of IL-10 +CD103 +Foxp3 -CD8 + T cells; (b) TER induced Foxp3 expression in CD25+CD8+ T cells and CD103 expression on Foxp3 -CD8 + T cells as well as increasing the absolute number of Foxp3 +CD25 +CD8 + T cells; (c) ATRA induced the capacity of Foxp3 +CD25 +CD8 + T cells to produce IL-10. The following desired interactions were demonstrated between IL-27 and ATRA: (a) a strong synergistic effect with respect to increasing CD39 expression and the ability to produce IL-10 by Foxp3 +CD25 +CD8 + T cells; (b) a synergistic effect with respect to increasing the absolute count of CD39 +Foxp3 +CD25 +CD8 + T cells. The study revealed that TER abolished all these effects. Therefore, a combination of the tested agents did not induce the generation of Foxp3 +CD25 +CD8 + and Foxp3 -CD103+CD8+ T cells characterized by extensive CD39 expression and IL-10 production. Thus, in the context of the pharmacological induction of IL-10 +CD39 +Foxp3 +CD25 +CD8 + and IL-10 +CD103 +Foxp3 -CD8 + T cells, these findings strongly suggest that a combination of TER with IL-27 and/or ATRA does not provide any benefits over TER alone; moreover, such a combination may result in abolishing the desired effects exerted by IL-27 and/or ATRA.

特立氟胺能诱导小鼠 CD8 + T 细胞中 Foxp3 的表达,而 IL-27 和维甲酸能协同诱导这些细胞中 CD39 的表达。
本研究的目的是验证用药物诱导 Foxp3 +CD25 +CD8 + 和 Foxp3 -CD103 +CD8 + T 调节细胞 "武装 "免疫抑制分子(即 CD39 和 IL-10)的可能性。为实现这一目的,受刺激和未受刺激的小鼠淋巴细胞均暴露于 IL-27、特立氟胺(TER)和全反式维甲酸(ATRA)。研究发现(a) IL-27 可诱导 Foxp3 +CD25 +CD8 + T 细胞表达 CD39,提高 CD103 +Foxp3-CD8 + T 细胞产生 IL-10 的能力,并增加 IL-10 +CD103 +Foxp3 -CD8 + T 细胞的绝对数量;(b) TER 诱导 CD25+CD8+ T 细胞中 Foxp3 的表达和 Foxp3 -CD8 + T 细胞上 CD103 的表达,并增加 Foxp3 +CD25 +CD8 + T 细胞的绝对数量;(c) ATRA 诱导 Foxp3 +CD25 +CD8 + T 细胞产生 IL-10 的能力。IL-27 和 ATRA 之间存在以下理想的相互作用:(a)在增加 Foxp3 +CD25 +CD8 + T 细胞的 CD39 表达和产生 IL-10 的能力方面具有很强的协同作用;(b)在增加 CD39 +Foxp3 +CD25 +CD8 + T 细胞的绝对数量方面具有协同作用。研究显示,TER 可消除所有这些效应。因此,联合使用测试药物并不能诱导产生以广泛表达 CD39 和产生 IL-10 为特征的 Foxp3 +CD25 +CD8 + 和 Foxp3 -CD103+CD8+ T 细胞。因此,在药理学诱导 IL-10 +CD39 +Foxp3 +CD25 +CD8 + 和 IL-10 +CD103 +Foxp3 -CD8 + T 细胞的背景下,这些研究结果有力地表明,TER 与 IL-27 和/或 ATRA 联合使用不会比单独使用 TER 带来任何益处;此外,这种联合使用可能会导致 IL-27 和/或 ATRA 失去预期的效果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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