在阿片类药物使用障碍中,人类和非人类灵长类动物条体中的单核转录学
BaDoi N Phan1,2,3, Madelyn H Ray4,5, Xiangning Xue6
1Computational Biology Department, Carnegie Mellon University, Pittsburgh, PA, 15213, USA.
Nature communications
|January 31, 2024
概括
阿片类药物使用障碍 (OUD) 改变背状条形神经元,显示神经退行和DNA损伤的丰富途径. 在OUD患者中,在质细胞中也观察到性别特异的分子差异.
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:
- 条纹体是对奖励和目标导向行为至关重要的大脑区域,在像阿片类药物使用障碍 (OUD) 这样的精神疾病中表现出功能障碍.
- 条纹体的特定子区域,特别是背状条纹体,在OUD中发挥着独特的作用,影响奖励处理,习惯形成和戒断相关的负面影响.
研究的目的:
- 为了表征人类背状条纹体内的细胞类型.
- 为了确定与阿片类药物使用障碍 (OUD) 相关的背上条纹体中的细胞类型特定的分子变化.
主要方法:
- 单核RNA测序被用来对人类背条体中的细胞群进行分析.
- 对DNA损伤的分子标记物在人类OUD个体和暴露在阿片类药物中的 rhesus的条状神经元中进行了评估.
主要成果:
- 单核RNA测序确定了人类背条体中多样化的细胞种群,包括规范型和不那么丰富的类型,如内部神经元.
- 从OUD患者的条状神经元中显著丰富的途径包括神经退行,干扰素反应和DNA损伤.
- 在暴露于阿片类药物的 rhesus macaques 的条状神经元中观察到较高的 DNA 损伤标志物.
- 与慢性压力相关的质细胞亚型的性别特异分子差异在OUD中被确定,在女性个体中发现了显著的发现.
结论:
- 这项研究提供了一个详细的细胞类型图谱人类背状条纹体.
- 背上条纹体中特定于细胞类型的分子变化与阿片类药物使用障碍 (OUD) 有关.
- 这些发现突出了神经退行,DNA损伤和性别特异性质反应在OUD病理生理学中的作用.
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