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人类中脑神经元亚群中与精神分裂症相关的变化

Astrid M Alsema¹, Sofía Puvogel^1,2, Laura Kracht³

¹Department of Biomedical Sciences, Section Molecular Neurobiology, University of Groningen, University Medical Center Groningen, Groningen 9713 AV, The Netherlands.

Brain : a journal of neurology

|October 14, 2024

概括

精神分裂症可能涉及腹部中脑内的特定神经元类型的变化. 这项研究使用单核RNA测序来识别不同的神经元群体,并发现精神分裂症患者激发性,抑制性和多巴胺神经元的潜在变化.

科学领域:

神经科学是一个神经科学.
基因组学就是基因组学.
精神病学是一个精神病学.

背景情况:

精神分裂症与腹部中脑中的功能障碍GABAergic和多巴胺基神经元有关.
这些神经元的转录变化并没有很好地局部化到特定的子集.
腹腔中脑的多巴胺活性是由刺激性 (谷氨酸) 和抑制性 (GABA) 输入调节的.

研究的目的:

描述人类腹部中脑中神经元群体的转录多样性.
为了确定神经元子集比例和基因活性中与精神分裂症相关的变化.
阐明神经元病理在精神分裂症单细胞水平.

主要方法:

单核RNA-sequencing (snRNA-seq) 测序了来自人类腹部中脑的31,669个NEUN+核.
光激活分类 (FAS) 的NEUN+核.
使用免疫组织化学染料进行对角验证.

主要成果:

已经确定了18个转录上不同的神经元种群,其中包括两个"混合"种群.
16个额外的亚种群被分类为激发性或抑制性在亚分类时.
在精神分裂症中激发性,抑制性,混合性和TH表达性神经元亚群的比例的潜在变化.
在混合人群中,在精神分裂症患者中检测到99个不同表达的基因,其中67个在小型GABAergic亚群中.

结论:

单核转录组分析揭示了人类腹部中脑中高多样性的GABAergic神经元.
在精神分裂症中,神经元子群比例和基因表达的假定变化.
有证据表明,精神分裂症中特定的GABAergic亚群的功能障碍,需要进一步调查.

关键词:

在中脑中,大脑中部神经元神经元的神经元精神分裂症是一种精神分裂症.单核RNA测序的一个核.

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