Institute of Biomedical Engineering, University of Toronto, Toronto, Ontario, Canada, M5S 3G9.
The KITE Research Institute, Toronto Rehabilitation Institute - University Health Network, Toronto, Ontario, Canada, M5G 2A2.
eNeuro. 2020 Aug 24;7(4). doi: 10.1523/ENEURO.0273-20.2020. Print 2020 Jul/Aug.
Deep brain stimulation (DBS), which uses electrical stimulation, is a well-established neurosurgical technique used to treat neurologic disorders. Despite its broad therapeutic use, the effects of electrical stimulation on brain cells is not fully understood. Here, we examine the effects of electrical stimulation on neural stem and progenitor cells (collectively neural precursor cells; NPCs) from the subventricular zone in the adult forebrain of C57BL/6J mice. Previous work has demonstrated that adult-derived NPCs are electro sensitive and undergo rapid and directed migration in response to application of clinically relevant electric fields (EFs). We examine NPC proliferation kinetics and their differentiation profile following EF application using and assays. direct current electrical stimulation of 250 mV/mm is sufficient to elicit a 2-fold increase in the neural stem cell pool and increases neurogenesis and oligogenesis. asymmetric biphasic electrical stimulation similarly increases the size of the NPC pool and alters neurogenesis. These findings provide insight into the effects of electrical stimulation on NPCs and suggest its potential use as a regenerative approach to neural repair.
深部脑刺激(DBS)利用电刺激,是一种成熟的神经外科技术,用于治疗神经疾病。尽管其具有广泛的治疗用途,但电刺激对脑细胞的影响还不完全清楚。在这里,我们检查了电刺激对成年前脑侧脑室下区的神经干细胞和祖细胞(统称为神经前体细胞;NPCs)的影响。先前的工作表明,成年来源的 NPC 对电敏感,并在应用临床相关电场(EF)时迅速且定向地迁移。我们使用和检测检查了 EF 应用后 NPC 增殖动力学及其分化特征。250 mV/mm 的直流电刺激足以使神经干细胞池增加两倍,并增加神经发生和少突胶质细胞发生。不对称双相电刺激同样增加 NPC 池的大小并改变神经发生。这些发现提供了对电刺激对 NPC 影响的深入了解,并表明其作为神经修复的再生方法具有潜在用途。
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