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JoVE Encyclopedia of Experiments
Neuroscience
使用神经肽受体激动剂刺激背根神经节感觉神经元
使用神经肽受体激动剂刺激背根神经节感觉神经元
Encyclopedia of Experiments
Neuroscience
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Encyclopedia of Experiments Neuroscience
Stimulation of Dorsal Root Ganglion Sensory Neurons Using a Neuropeptide Receptor Agonist

使用神经肽受体激动剂刺激背根神经节感觉神经元

Protocol
249 Views
02:07 min
July 8, 2025
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Please note that some of the translations on this page are AI generated. Click here for the English version.

Transcript

取一个含有转染的大鼠背根神经节感觉神经元的多孔板。

测试井神经元表现出神经肽受体表达降低,而对照孔神经元表现出神经肽受体表达的生理水平。

用

无血清培养基代替培养基,为准确的刺激反应提供受控环境。

将神经肽受体激动剂添加到孔中并混合。孵育板。

在对照孔中,神经肽受体激动剂与靶受体结合,触发细胞内信号级联反应,释放神经递质。

然而,在测试孔中,神经肽受体表达减少限制了激动剂结合,导致与对照组相比神经递质释放减少。

孵育后,从孔和离心机中收集培养基。

将

上清液转移到试管中,并使用合适的免疫测定法测量神经递质水平。在神经受体激动剂刺激后,对照样品表现出比测试样品更高的神经递质释放。

在第6天,铺板后和siRNA转染后72小时,将培养基更换为200微升无血清培养基。孵育 30 分钟后,加入 1 微升刺激化学品,并通过移液轻轻混合。孵育所需时间后,从培养皿中收集培养基,在4摄氏度下以5,000倍g离心5分钟,以除去任何悬浮杂质。从离心中收集上清液,并根据需要用磷酸盐缓冲盐水稀释。

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