Knockout of Sirt2 alleviates traumatic brain injury in mice.

Knockout of Sirt2 alleviates traumatic brain injury in mice.
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敲除Sirt2可减轻小鼠创伤性脑损伤

DOI:
10.4103/1673-5374.346457
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发表时间:
2023-03
影响因子:
6.1
通讯作者:
Tian, Heng-Li
Tian, Heng-Li
中科院分区:
医学2区
文献类型:
--
作者:
Wang, Wei;Gong, Qiu-Yuan;Cai, Lin;Jing, Yao;Yang, Dian-Xu;Yuan, Fang;Chen, Hao;Tian, Heng-Li

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Sirtuin 2 (SIRT2)抑制或SIRT2敲除在动物模型中保护神经退行性疾病和脑缺血的发展。然而,SIRT2在创伤性脑损伤(TBI)中的作用尚不清楚。在这项研究中,我们发现在TBI小鼠模型中敲除Sirt2可以减少脑水肿,减轻血脑屏障的破坏,降低核苷酸结合寡聚结构域样受体蛋白3 (NLRP3)炎症小体的表达,降低效应蛋白caspase-1的活性,减少神经炎症和神经元焦凋亡,改善神经功能。在体外机械拉伸损伤细胞模型中敲除Sirt2也会降低NLRP3炎症小体的表达和焦亡。我们的研究结果表明,敲除Sirt2对TBI具有神经保护作用;因此,Sirt2可能成为TBI治疗的新靶点。
Sirtuin 2 (SIRT2) inhibition or Sirt2 knockout in animal models protects against the development of neurodegenerative diseases and cerebral ischemia. However, the role of SIRT2 in traumatic brain injury (TBI) remains unclear. In this study, we found that knockout of Sirt2 in a mouse model of TBI reduced brain edema, attenuated disruption of the blood-brain barrier, decreased expression of the nucleotide-binding oligomerization domain-like receptor protein 3 (NLRP3) inflammasome, reduced the activity of the effector caspase-1, reduced neuroinflammation and neuronal pyroptosis, and improved neurological function. Knockout of Sirt2 in a mechanical stretch injury cell model in vitro also decreased expression of the NLRP3 inflammasome and pyroptosis. Our findings suggest that knockout of Sirt2 is neuroprotective against TBI; therefore, Sirt2 could be a novel target for TBI treatment.
创伤性脑损伤后,靶向慢性和发展的神经炎症以改善长期结局:小胶质细胞模型的见解。
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发表时间: 2021-05
影响因子: 6.1
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