网络医学方法通过大规模的比较蛋白质组学分析揭示了阿尔茨海默病中的内基类型特征:血管功能障碍作为一个主要例子
Zhao Dai1, Xiaocong Pang2, Nan Chen1
1Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510006, China.
Journal of chemical information and modeling
|September 26, 2024
概括
研究人员使用网络医学方法确定了阿尔茨海默病 (AD) 末型的关键蛋白质特征. 突出了阿尔茨海默氏症血管功能障碍的三个新型蛋白质生物标志物,提供了新的诊断潜力.
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.
- 生物化学 生物化学
背景情况:
- 阿尔茨海默病 (AD) 是神经退行的主要原因,对公共健康造成重大负担.
- 识别特定的病理机制或内分类型对于理解AD进展至关重要.
- 现有的研究往往集中在单个方面,需要采用整体方法来发现复杂的疾病特征.
研究的目的:
- 开发一个基于网络的基础设施,用于识别与五个关键AD病理性内分类型相关的蛋白质特征.
- 确定阿尔茨海默病的新型蛋白质生物标志物候选者,特别是与血管功能障碍相关的.
- 为了证明网络医学在剖析复杂的神经退行性疾病 (如AD) 的实用性.
主要方法:
- 分析了来自AD患者和小鼠模型的23个蛋白质组数据集.
- 在集成的AD蛋白质组中,使用的网络靠近与差异表达蛋白 (DEP) 相关联的蛋白质模块.
- 集成的多omics数据 (RNA-seq,单细胞转录组学,GWAS,文献) 专注于血管功能障碍的签名.
主要成果:
- 确定了五种AD内类型的蛋白质特征:氨基粉症,病,血管功能障碍,溶酶体功能障碍和神经炎症.
- 专注于血管功能障碍,识别了一个包含21个DEP的签名.
- 通过APP/PS1和MCAO模型的实验,突出了SEPT5,SNAP25和STXBP1作为潜在的新型AD生物标志物候选者.
结论:
- 这项研究成功地展示了一种网络医学框架,用于在阿尔茨海默病中识别内啡型特异性蛋白质特征.
- SEPT5,SNAP25和STXBP1成为AD生物标志物开发的有希望的候选者,特别是血管方面的.
- 这种方法为破译AD等复杂疾病的分子基础提供了一个强大的方法.
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