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阿尔茨海默氏症成像联盟

Hubert Leo1, Joshua L Gills2, Omonigho M Bubu2

  • 1New York University Langone Health, New York City, NY, USA.

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概括
此摘要是机器生成的。

这项研究将阿尔茨海默病 (AD) 血生物标志物如粉样β (Aβ) 和tau与先进平台上的共享蛋白质组特征联系起来,有助于AD诊断.

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科学领域:

  • 发现神经退行性疾病的蛋白质组学和生物标志物.
  • 对阿尔茨海默病 (AD) 生物标志物的跨平台验证.
  • 研究与AD病理学相关的分子通路.

背景情况:

  • 像粉样β (Aβ) 和化 (p-tau) 这样的血生物标志物对于阿尔茨海默病 (AD) 评估至关重要.
  • 像SomaScan,Olink和ALAMAR这样的先进蛋白质基因平台可以精确量化蛋白质.
  • 了解不同蛋白质组测量之间的关系对于生物标志物验证至关重要.

研究的目的:

  • 为了检查ALAMAR NULISA测量的与阿尔茨海默病 (AD) 相关的蛋白质与SomaScan和Olink平台测量的蛋白质之间的关联.
  • 通过路径丰富分析,识别与AD生物标志物相关的共享蛋白质组特征.
  • 为了比较不同蛋白质组平台在量化AD相关蛋白质方面的性能.

主要方法:

  • 来自ARIC队列116名参与者的血样本的横截面分析.
  • 使用ALAMAR NULISA量化阿尔茨海默病 (AD) 生物标志物,包括粉样蛋白-β (Aβ),p-tau,神经丝光链 (NfL) 和状纤维酸性蛋白质 (GFAP).
  • 将ALAMAR数据与SomaScan 11k和Olink 5k蛋白质组数据进行比较,随后进行跨平台相关性和通路丰富分析.

主要成果:

  • 在ALAMAR生物标志物和Olink和SomaScan测量的蛋白质之间发现了显著的相关性,特别是Aβ40,Aβ42和NfL.
  • 途径丰富分析揭示了常见的途径,包括细胞因子-细胞因子相互作用,胰岛素信号传递,MAPK信号传递,细胞粘附和跨平台的内细胞结合.
  • 在这三个平台上,Aβ42显示出交叉蛋白的数量最多.

结论:

  • 与阿尔茨海默病 (AD) 生物标志物相关的共享蛋白质组概况在多个蛋白质组平台上被确定.
  • 阿拉玛ATN&I血生物标志物与与肌肉完整性,炎症,功能和细胞膜完整性相关的蛋白质有中度至强度的相关性.
  • 未来的研究应该在整个AD连续的个体中探索组织特异性途径.