RA/ bdnf诱导SH-SY5Y神经母细胞瘤细胞长期分化后NMDA受体的功能表达

IF 1.6 Q3 CLINICAL NEUROLOGY
NeuroSci Pub Date : 2025-05-26 DOI:10.3390/neurosci6020047
Ya-Jean Wang, Yun-Hsiang Chen, Eric Hwang, Che-Jui Yeh, You-Xuan Liu, Hwei-Hsien Chen, Sheng-Nan Wu
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引用次数: 0

摘要

SH-SY5Y神经母细胞瘤细胞在维甲酸(RA)和脑源性神经营养因子(BDNF)的作用下可有效分化为神经元表型,是研究神经元分化的重要体外模型。本研究旨在探讨SH-SY5Y细胞在长时间分化后的电生理特性,重点关注膜特性、诱发动作电位和细胞成分(如n -甲基- d -天冬氨酸(NMDA)受体)的功能。采用全细胞膜片钳记录来评估胚胎小鼠皮质神经元(mCNs)以及分化和未分化的SH-SY5Y神经母细胞瘤细胞的离子电流和动作电位。分化的SH-SY5Y细胞表现出神经突生长、诱发动作电位放电和功能性NMDA受体介导的电流。值得注意的是,阿托伐他汀显著调节分化的SH-SY5Y细胞的动作电位持续时间和放电以及NMDA受体介导的电流。这些发现表明,表达功能性NMDA受体介导电流的神经分化SH-SY5Y细胞可以作为研究NMDA受体功能的分子机制和筛选靶向这些受体的药物的强大而方便的模型。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Functional Expression of NMDA Receptors in SH-SY5Y Neuroblastoma Cells Following Long-Term RA/BDNF-Induced Differentiation.

SH-SY5Y neuroblastoma cells can be effectively differentiated into a neuronal phenotype using retinoic acid (RA) and brain-derived neurotrophic factor (BDNF), making them a valuable in vitro model for studying neuronal differentiation. This study aimed to investigate the electrophysiological properties of SH-SY5Y cells following prolonged differentiation, with a focus on membrane characteristics, evoked action potentials, and the functionality of cellular components such as N-methyl-D-aspartate (NMDA) receptor. Whole-cell patch-clamp recordings were employed to evaluate ionic currents and action potentials in embryonic mouse cortical neurons (mCNs) and in both differentiated and undifferentiated SH-SY5Y neuroblastoma cells. Differentiated SH-SY5Y cells exhibited neurite outgrowth, evoked action potential firing, and functional NMDA receptor-mediated currents. Notably, atorvastatin significantly modulated the duration and firing of action potentials as well as NMDA receptor-mediated currents in differentiated SH-SY5Y cells. These findings highlight that neuronally differentiated SH-SY5Y cells expressing functional NMDA receptor-mediated currents serve as a robust and convenient model for investigating the molecular mechanisms of NMDA receptor function and for screening pharmacological agents targeting these receptors.

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