Microglia Modulate Cortical Spreading Depolarizations After Ischemic Stroke: A Narrative Review.

Microglia Modulate Cortical Spreading Depolarizations After Ischemic Stroke: A Narrative Review.
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DOI:
10.1007/s12028-022-01469-4
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发表时间:
2022-06
期刊:
影响因子:
3.5
通讯作者:
--
中科院分区:
医学3区
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--
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皮层扩张性去极化(CSDs)的特征是脑电图活动减弱的波在皮层传播,随后离子稳态丧失。在许多病理情况下,包括偏头痛、创伤性脑损伤和缺血性中风,都发现了CSDs。由于缺血性卒中后梗死周围区域与csd相关的离子和代谢紊乱,人们认为csd会加剧组织梗死并使临床结果恶化。小胶质细胞是大脑中主要的先天免疫细胞,是对脑组织损伤的第一个反应者。最近的研究表明,小胶质细胞在CSD的发生和繁殖中起着至关重要的作用。在这篇文章中,我们讨论了缺血性卒中背景下CSD的意义,以及小胶质细胞如何调节梗死周围CSD,也被称为等电去极化。最后,我们讨论了小胶质细胞Ca2+的意义,以及它如何作为缺血性卒中患者的潜在治疗靶点。
Cortical spreading depolarizations (CSDs) are characterized by waves of diminished electroencephalography activity that propagate across the cortex with subsequent loss of ionic homeostasis. CSDs have been found in many pathological conditions, including migraine, traumatic brain injury, and ischemic stroke. Because of CSD-associated ionic and metabolic disturbances at the peri-infarct area after ischemic stroke, it is thought that CSDs exacerbate tissue infarction and worsen clinical outcomes. Microglia, the main innate immune cells in the brain, are among the first responders to brain tissue damage. Recent studies demonstrated that microglia play a critical role in CSD initiation and propagation. In this article, we discuss the significance of CSD in the setting of ischemic stroke and how microglia may modulate peri-infarct CSDs, also known as iso-electric depolarizations. Finally, we discuss the significance of microglial Ca2+ and how it might be used as a potential therapeutic target for patients with ischemic stroke.
DOI: 10.1111/j.1471-4159.2012.07763.x
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