Src family tyrosine kinase inhibitors suppress Nav1.1 expression in cultured rat spiral ganglion neurons

Src family tyrosine kinase inhibitors suppress Nav1.1 expression in cultured rat spiral ganglion neurons
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Src家族酪氨酸激酶抑制剂抑制培养的大鼠螺旋神经节神经元中Nav1.1的表达

DOI:
10.1007/s00359-016-1066-3
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发表时间:
2016-01
影响因子:
2.1
通讯作者:
Su Jiping
Su Jiping
中科院分区:
心理学3区
文献类型:
--
作者:
Chen Huiying;Zeng Qingjiao;Yao Chen;Cai Zheng;Wei Tingjia;Huang Zhihui;Su Jiping

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Src家族激酶调节神经元电压门控Na(+)通道,其产生动作电位。然而,其作用机制仍然知之甚少。本研究的目的是进一步阐明Src家族激酶对螺旋神经节神经元Nav1.1 mRNA和蛋白表达的影响。免疫荧光染色技术检测螺旋神经节神经元Nav1.1的表达。此外,使用定量PCR和蛋白质印迹技术分别分析了螺旋神经节神经元暴露于Src家族激酶抑制剂PP 2(1和10 μM)和SU 6656(0.1和1 μM)不同时间长度(6和24小时)后Nav1.1 mRNA和蛋白质的表达。在螺旋神经节神经元中,Nav1.1蛋白在胞体和轴突中表达。Src家族激酶抑制剂PP2和SU6665分别显著降低螺旋神经节神经元中Nav1.1 mRNA和蛋白表达(p < 0.05),并且表达变化不依赖于时间或剂量(p > 0.05)。
Src family kinases regulate neuronal voltage-gated Na(+) channels, which generate action potentials. The mechanisms of action, however, remain poorly understood. The aim of the present study was to further elucidate the effects of Src family kinases on Nav1.1 mRNA and protein expression in spiral ganglion neurons. Immunofluorescence staining techniques detected Nav1.1 expression in the spiral ganglion neurons. Additionally, quantitative PCR and western blot techniques were used to analyze Nav1.1 mRNA and protein expression, respectively, in spiral ganglion neurons following exposure to Src family kinase inhibitors PP2 (1 and 10 μM) and SU6656 (0.1 and 1 μM) for different lengths of time (6 and 24 h). In the spiral ganglion neurons, Nav1.1 protein expression was detected in the somas and axons. The Src family kinase inhibitors PP2 and SU6665 significantly decreased Nav1.1 mRNA and protein expression (p < 0.05), respectively, in the spiral ganglion neurons, and changes in expression were not dependent on time or dose (p > 0.05).
DOI: 10.3346/jkms.2006.21.1.136
发表时间: 2006-02
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期刊: PloS one
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