Th17 cells in depression.

Th17 cells in depression.
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DOI:
10.1016/j.bbi.2017.08.001
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发表时间:
2018-03
期刊:
Brain, behavior, and immunity
影响因子:
--
通讯作者:
Lowell JA
Lowell JA
中科院分区:
其他
文献类型:
--
作者:
Beurel E;Lowell JA

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辅助性T细胞17(Th 17)最近被认为与抑郁症有关,这增加了已知涉及Th 17细胞的几种其他中枢神经系统(CNS)疾病的清单。在CNS疾病中,认为由Th 17细胞产生的标志性细胞因子白细胞介素-17A(IL-17 A)介导Th 17细胞的有害作用。在抑郁症中,虽然Th 17细胞增加,但抑郁症严重程度和血液IL-17 A水平之间缺乏相关性,表明Th 17细胞促进抑郁症状,这可能不完全依赖于IL-17。然而,关于Th 17细胞在抑郁症中的作用机制或CNS Th 17细胞的来源知之甚少。Th 17细胞可能促进神经炎症和小胶质细胞和星形胶质细胞的活化,这些作用可能导致神经元损伤。Th 17细胞的来源是小肠,在那里它们受到微生物组组成的调节。Th 17细胞通过何种作用机制影响抑郁症以及Th 17细胞是否可以被视为抑郁症的新治疗靶点仍有待确定。
T helper 17 (Th17) cells have recently been implicated in depression, which adds to the list of several other diseases of the central nervous system (CNS) that are already known to involve Th17 cells. In CNS diseases, it is thought that the signature cytokine produced by Th17 cells, interleukin-17A (IL-17A), mediates the detrimental effects of Th17 cells. In depression, although Th17 cells increase, the lack of a correlation between depression severity and blood IL-17A levels suggests that Th17 cells promote depressive symptoms, which may not be entirely dependent on IL-17. However, little is known about the mechanism of action of Th17 cells or the source of CNS Th17 cells in depression. It is likely that Th17 cells promote neuroinflammation and activation of microglia and astrocytes, actions that may contribute to neuronal damage. A source of Th17 cells is the small intestine where they are regulated by the composition of the microbiome. It remains to be determined through what mechanisms of action Th17 cells affect depression and if Th17 cells can be considered a novel therapeutic target in depression.
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