il-2/anti-il-2 complex attenuates inflammation and bbb disruption in mice subjected to traumatic brain injury

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ID: 197847
2017
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Abstract
Traumatic brain injury (TBI) induces the excessive inflammation and disruption of blood–brain barrier, both of which are partially mediated by the activation of microglia and release of inflammatory cytokines. Previous reports showed that administration of regulatory T cells (Tregs) could suppress inflammation and promote neurological function recovery, and that the IL-2/anti-IL-2 complex (IL-2C) could increase the number of Tregs. Thus, we hypothesized that IL-2C-mediated expansion of Tregs would be beneficial in mice subjected to TBI. In this study, mice received an intraperitoneal injection of IL-2C for three consecutive days. We observed that IL-2C dose-dependently increased Tregs without affecting the populations of CD4, CD8, or natural killer cells. IL-2C could improve the neurological recovery and reduce brain edema, tissue loss, neutrophils infiltration, and tight junction proteins degradation. Furthermore, this complex could also reduce the expression of CD16/32, IL-1β, or TNF-α, and elevate the expression of CD206, arginase 1, or TGF-β. These results suggest that IL-2C could be a potential therapeutic method to alleviate excessive inflammation and maintain blood vessel stability after TBI.
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gao2017frontiersil-2/anti-il-2 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Weiwei Gao;Fei Li;Ziwei Zhou;Xin Xu;Yingang Wu;Shuai Zhou;Dongpei Yin;Dongdong Sun;Jianhua Xiong;Rongcai Jiang;Jianning Zhang
Journal journal of photochemistry and photobiology a: chemistry
Year 2017
DOI
10.3389/fneur.2017.00281
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