Kv1.3 inhibition attenuates neuroinflammation through disruption of microglial calcium signaling.

Kv1.3 inhibition attenuates neuroinflammation through disruption of microglial calcium signaling.
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Kv1.3抑制通过干扰小胶质细胞钙信号来减轻神经炎症。

DOI:
10.1080/19336950.2020.1853943
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发表时间:
2021-12
期刊:
Channels (Austin, Tex.)
影响因子:
--
通讯作者:
Wulff H
Wulff H
中科院分区:
其他
文献类型:
--
作者:
Fomina AF;Nguyen HM;Wulff H

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在过去的5年中,钾通道KV1.3的抑制剂已被证明可以减少缺血性中风、阿尔茨海默病、帕金森病和创伤性脑损伤的啮齿动物模型中的神经炎症。在全身水平,这些有益的作用是通过减少小胶质细胞活化和抑制促炎细胞因子和一氧化氮的产生来介导的。然而,KV1.3阻断剂对促炎性小胶质细胞功能的抑制作用的分子机制尚不清楚,直到我们的小组最近证明KV1.3通道不仅调节膜电位,正如电压门控钾通道所预期的那样,而且在使小胶质细胞能够抵抗危险信号ATP产生的去极化从而通过P2X4调节钙内流方面也起着关键作用受体。在这里,我们回顾了KV1.3在小胶质细胞信号传导中的作用,并表明,类似于它们在T细胞中的作用,KV1.3通道也调节小胶质细胞中的钙池操作的钙内流。
In the last 5 years inhibitors of the potassium channel KV1.3 have been shown to reduce neuroinflammation in rodent models of ischemic stroke, Alzheimer’s disease, Parkinson’s disease and traumatic brain injury. At the systemic level these beneficial actions are mediated by a reduction in microglia activation and a suppression of pro-inflammatory cytokine and nitric oxide production. However, the molecular mechanisms for the suppressive action of KV1.3 blockers on pro-inflammatory microglia functions was not known until our group recently demonstrated that KV1.3 channels not only regulate membrane potential, as would be expected of a voltage-gated potassium channel, but also play a crucial role in enabling microglia to resist depolarizations produced by the danger signal ATP thus regulating calcium influx through P2X4 receptors. We here review the role of KV1.3 in microglial signaling and show that, similarly to their role in T cells, KV1.3 channels also regulated store-operated calcium influx in microglia.
大鼠和小鼠原发性小胶质细胞对促炎和抗炎刺激的反应:分子特征,K(+)通道和迁移。
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