通过多omics数据整合分析,揭示与神经炎症相关的模块和潜在的阿尔茨海默病重定向药物
Shensuo Li1, Changhao Lu2, Zhenzhen Zhao1
1Shanghai Frontiers Science Center for Chinese Medicine Chemical Biology, Institute of Interdisciplinary Integrative Medicine Research, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
Frontiers in aging neuroscience
|June 19, 2023
概括
研究人员确定了一种特定的基因模块,即粉样β诱导的神经炎症模块 (AIM),与阿尔茨海默氏症 (AD) 病理学有关. 这一发现为AD提供了潜在的新生物标志物和治疗点.
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.
- 分子生物学分子生物学
背景情况:
- 神经炎症是神经元死亡和阿尔茨海默病 (AD) 中的突触功能障碍的关键因素.
- 氨基酸β (Aβ) 都涉及到激活微质并驱动AD中的神经炎症.
- 了解AD中神经炎症的特定基因模块对于识别生物标志物和阐明疾病机制至关重要.
研究的目的:
- 确定与阿尔茨海默病 (AD) 中的粉样β (Aβ) 积累和神经炎症相关的特定基因模块.
- 探索这个模块,神经元健康和微质激活之间的关系.
- 发现潜在的诊断生物标志物和AD的治疗点.
主要方法:
- 权重基因共同表达网络分析 (WGCNA) 应用于来自AD和正常大脑组织的转录组数据.
- 根据它们与Aβ积累和神经炎症标志物的相关性,确定了关键模块.
- 单核RNA测序 (snRNA-seq) 数据被用来调查该模块与神经元和微质群体的关联.
- 转录因子 (TF) 丰富和SCENIC分析确定了上游监管者,并使用网络近距离方法探索了药物重定位.
主要成果:
- 确定了16个共同表达模块;"绿色"模块,称为粉样β诱导的神经炎症模块 (AIM),与Aβ积累有显著的相关性.
- AIM主要涉及神经炎症和神经元死亡,与神经元百分比负相关,并与炎症性微质相关.
- 几种转录因子 (TF) 被确定为潜在的AD诊断生物标志物.
- 确定了20种潜在的药物,包括易布鲁替尼和波纳替尼,用于AD重定位.
结论:
- 一个特定的基因模块AIM被确定为AD中Aβ积累和神经炎症的关键组成部分.
- AIM与神经元退化和微质细胞转化为炎症状态有关.
- 该研究提出了有前途的TF和潜在的阿尔茨海默病候选药物,为疾病机制和治疗策略提供了新的见解.
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