血蛋白组学识别了预测帕金森病的生物标志物,在症状出现前长达7年
Jenny Hällqvist1,2, Michael Bartl3,4, Mohammed Dakna5
1UCL Institute of Child Health and Great Ormond Street Hospital, London, UK. j.hallqvist@ucl.ac.uk.
Nature communications
|June 18, 2024
概括
一项新的血液测试可以识别帕金森病患者,并预测前运动性疾病早7年. 这个生物标志物小组有助于早期诊断和临床试验招募神经退行性疾病干预.
科学领域:
- 神经科学是一个神经科学.
- 生物标志物发现发现
- 质谱测量质量谱测量
背景情况:
- 帕金森病 (PD) 诊断往往发生晚期,在显著的神经退行之后.
- 通过生物标志物的早期检测对于减缓疾病进展的干预措施至关重要.
- 快速睡眠行为障碍 (REM睡眠行为障碍,简称RBD) 是运动性PD前的早期非运动性症状.
研究的目的:
- 为了验证血液中PD生物标志物的多重质谱测定.
- 为了识别帕金森病早期和前运动阶段的血液蛋白质签名.
- 评估这些生物标志物在早期诊断和临床试验分层方面的潜力.
主要方法:
- 针对血液样本的多重重质谱.
- 机器学习模型训练了运动性PD,前运动性RBD和健康对照患者.
- 对八种特定蛋白质生物标记物的分析:花素前体,MBL-SP-2,ER-chaperone BiP,PG-H2-DI,ICAM-1,补充C3,DKK-3和等离子蛋白酶C1抑制剂.
主要成果:
- 该分析准确地确定了所有运动帕金森病患者.
- 该模型将79%的运动前个体归类为孤立的REM睡眠行为障碍,在运动开始前7年.
- 几种已识别的生物标志物与帕金森病的症状严重程度相关.
结论:
- 一个由八个血液蛋白质组成的面板可以识别帕金森病并预测前运动阶段.
- 这种血液检测为早期诊断和识别临床试验中的个体提供了潜在的工具.
- 这些发现支持使用血液生物标志物干预帕金森病早期神经退行过程.
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