Spleen contributes to restraint stress induced changes in blood leukocytes distribution.

Spleen contributes to restraint stress induced changes in blood leukocytes distribution.
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脾有助于约束应激引起的血液白细胞分布的变化。

DOI:
10.1038/s41598-017-06956-9
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发表时间:
2017-07-26
期刊:
影响因子:
4.6
通讯作者:
Li ZF
Li ZF
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Jiang W;Li Y;Sun J;Li L;Li JW;Zhang C;Huang C;Yang J;Kong GY;Li ZF

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心理压力对免疫系统有很大的影响,尤其是白细胞分布。尽管对急性应激对血清细胞分布的影响进行了充分的研究,但是尚不清楚慢性应激如何影响周围循环中的白细胞分布。此外,没有关于脾作用在压力引起的血清白细胞分布中的作用。在这里,我们表明脾脏有助于改变应激引起的血液白细胞分布。我们的数据证实,约束应力会引起小鼠的焦虑样行为。此外,我们发现约束应力降低了CD4/CD8的比率,并提高了天然杀伤细胞,单核细胞和多形核髓类髓样衍生的抑制细胞的百分比。我们证明了下丘脑 - 垂体 - 肾上腺轴(HPA)和交感神经系统(SNS)的激活有助于约束应激诱导的血清细胞分布的改变。有趣的是,我们发现脾切除术可以逆转约束应力引起的CD4/CD8比的变化。总之,我们的发现表明,HPA轴和SN的激活是由约束应力引起的血液白细胞子集的变化。脾脏至少部分地导致了受约束应力引起的周围循环的改变。
Psychological stress has great impacts on the immune system, particularly the leukocytes distribution. Although the impacts of acute stress on blood leukocytes distribution are well studied, however, it remains unclear how chronic stress affects leukocytes distribution in peripheral circulation. Furthermore, there is no report about the role of spleen in the blood leukocytes distribution induced by stress. Here we show that spleen contributes to the alteration of restraint stress induced blood leukocytes distribution. Our data confirmed that restraint stress induced anxiety-like behavior in mice. Furthermore, we found that restraint stress decreased the CD4/CD8 ratio and elevated the percentages of natural killer cells, monocytes and polymorphonuclear myeloid-derived suppressor cell. We demonstrated that activation of hypothalamic-pituitary-adrenal axis (HPA) and sympathetic nervous system (SNS) contributes to restraint stress induced alteration of blood leukocyte distribution. Interestingly, we found that splenectomy could reverse the change of CD4/CD8 ratio induced by restraint stress. Together, our findings suggest that activation of HPA axis and SNS was responsible for the blood leukocyte subsets changes induced by restraint stress. Spleen, at least in part, contributed to the alteration in peripheral circulation induced by restraint stress.
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