循环依赖性基因酶的激活 5 布罗登在人类感官神经元中的作用潜力
Manindra Nath Tiwari1, Bradford E Hall2, Anita Terse2
1Department of Neural and Pain Sciences, School of Dentistry, Program in Neuroscience, Center to Advance Chronic Pain Research, The University of Maryland, Baltimore, Maryland 21201.
bioRxiv : the preprint server for biology
|July 3, 2023
概括
在人类感觉神经元中,循环素依赖性激酶5 (CDK5) 的激活会改变动作潜力的特性. 这表明CDK5通过调节原发性 afferents中的神经元活动,在慢性疼痛中发挥作用.
科学领域:
- 神经科学是一个神经科学.
- 分子生物学分子生物学
- 疼痛研究 疼痛研究
背景情况:
- 慢性疼痛是由损伤后感知神经元的神经可塑性引起的.
- 循环素依赖性激酶5 (CDK5) 参与通过酸化调节 nociception.
- CDK5在人类感官神经元和慢性疼痛中的特定作用尚不清楚.
研究的目的:
- 为了研究CDK5在调节人类背部根 (hDRG) 神经元特性中的作用.
- 为了确定CDK5激活对人类感官神经元中的感觉受体活性的影响.
主要方法:
- 在解离的hDRG神经元上进行了全细胞补丁记录.
- 通过过度表达其激活剂p35.5来诱导CDK5激活.
- 分析了神经元特性和动作潜能 (AP) 参数.
主要成果:
- 过度表达p35导致CDK5激活,使静止膜潜力脱极化,并减少hDRG神经元中的基电流.
- CDK5激活通过增加AP上升时间,下降时间和半宽度来扩大行动潜力.
- 前列腺素E2和布拉迪基宁在控制神经元中诱导了类似的变化,但在p35过度表达的神经元中没有,这表明CDK5参与.
结论:
- CDK5激活显著改变了人体感官神经元中的AP特性.
- 在病理性疼痛条件下,CDK5在调节人体初级附带作用潜力方面发挥着至关重要的作用.
- 这些发现凸显了CDK5作为慢性疼痛管理的潜在治疗点.
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