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副腹腔体胸膜核中的VGluT2神经元亚型调节了帕尔奎特诱导的帕金森病的抑郁症

Yu Zhang¹, Yihua Jiang¹, Zhen Yu¹

¹Department of Preventive Medicine, School of Public Health, Fujian Medical University, Fuzhou 350122, China; The Key Laboratory of Environment and Health, School of Public Health, Fujian Medical University, Fuzhou 350122, China; Fujian Provincial Key Laboratory of Environmental Factors and Cancer, School of Public Health, Fujian Medical University, Fuzhou 350122, China.

Journal of hazardous materials

|May 12, 2024

概括

在帕金森氏症模型中,通过激活位于腹体体核 (PVT) 中的特定神经元,帕克瓦特暴露会触发抑郁症. 抑制这些PVT神经元可以缓解抑郁行为,揭示了与帕金森病相关的抑郁症的关键途径.

科学领域:

神经科学是一个神经科学.
神经退行性疾病神经退行性疾病
分子精神病学分子精神病学

背景情况:

帕金森病 (PD) 是一种常见的神经退行性疾病.
抑郁症影响大约三分之一的PD患者.
帕拉克瓦特 (PQ) 暴露与PD和抑郁症有关,但潜在的神经机制尚不清楚.

研究的目的:

为了确定特定的大脑区域和神经网络涉及抑郁症在帕尔奎特诱导的帕金森病小鼠模型.
为了研究VGluT2-阳性谷氨基基神经元在偏心室胸核 (PVT) 在促进抑郁症中的作用.

主要方法:

使用了帕尔奎特诱导的帕金森病小鼠模型.
研究了PVT VGluT2神经元的激活.
操纵PVT VGluT2神经元活动及其投射到中央杏仁核 (CeA).
评估了抑郁行为,并观察了CeA的谷氨酸系统和突触形态学的变化.

主要成果:

帕拉克瓦特暴露激活了PVT VGluT2神经元,增加了PD小鼠对抑郁症的敏感性.
抑制PVT VGluT2神经元可以逆转PQ诱导的抑郁行为.
刺激PVT VGluT2神经元投射到CeA也影响了抑郁症.
通过PVT VGluT2激活,PQ诱导了谷氨酸系统功能障碍,并通过PVT VGluT2激活改变了CeA形态.

结论:

在PQ诱导的PD中,PVT VGluT2神经元对于抑郁至关重要.
在这个模型中,PVT VGluT2-CeA通路是促进抑郁症的关键机制.
准PVT VGluT2神经元为帕金森病中抑郁症提供了潜在的治疗策略.

关键词:

中央桃体核的核心.化学遗传学化学遗传学帕拉克瓦特 (Paraquat) 是一种类型.副腹腔体的乳头核核.帕金森病伴有抑郁症的情况.

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