在神经退行研究中,CSF的营业额重塑了生物标志物的解释
medRxiv : the preprint server for health sciences
|February 12, 2026
概括
脑脊液 (CSF) 动态,包括循环和血脑屏障完整性,显著影响阿尔茨海默病 (AD) 生物标志物水平. 考虑到这些因素,可以改善AD的诊断,并揭示出一个一致的AD蛋白质组特征.
科学领域:
- 神经科学是一个神经科学.
- 生物标志物发现发现
- 蛋白质组学是指蛋白质组学.
背景情况:
- 大脑脊髓液 (CSF) 生物标志物对于阿尔茨海默病 (AD) 的诊断和研究至关重要.
- 然而,CSF的组成受神经退行症以外的因素的影响,例如影响CSF周转和血脑屏障 (BBB) 完整性的生理过程.
- 这些混因素使AD生物标志物的解释变得复杂.
研究的目的:
- 调查CSF动态 (营业额和BBB完整性) 对多omics数据的影响.
- 确定CSF动态如何影响核心AD生物标志物水平和分类.
- 建立一个强大的AD蛋白质分子签名,独立于混因素.
主要方法:
- 来自ACE CSF队列和全球神经退行性蛋白质组合的多omics CSF数据的整合.
- 对定量特征位置数据的分析.
- 使用OPCML作为调整生物标志物水平的参考标记.
- 在独立队伍 (ACE CSF和Knight ADRC) 中验证了一个策划的AD签名.
主要成果:
- 两个主要因素,CSF周转率和BBB完整性,解释了CSF奥米克数据中的73.2-85.9%的分子变异.
- 脑液周转影响来自大脑的分子,而BBB损伤增加了来自血液的蛋白质.
- 根据CSF动态调整和使用OPCML改善了AD进展的预测,并揭示了一致的AD蛋白质特征.
- 鉴定和验证了446种蛋白质的精心策划的AD签名.
结论:
- 脊髓流动力学是脊髓流中分子变异的主要决定因素,显著影响AD生物标志物的解释.
- 考虑CSF周转率和BBB完整性对于准确的AD诊断和研究至关重要.
- 鉴定到的446蛋白AD签名为了解AD病理学提供了更可靠的基础.
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