生物标志物 生物标志物
Rowan Saloner1, Joshua Downer2, Argentina Lario Lago3
1Memory and Aging Center, UCSF Weill Institute for Neurosciences, University of California, San Francisco, San Francisco, CA, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
血液蛋白质学可以在症状出现之前检测出家族前叶退化 (FTLD) 变化. 这项研究使用NULISAseq来识别表达早期FTLD进展的关键血蛋白.
科学领域:
- 神经科学是一个神经科学.
- 生物标志物 生物标志物
- 蛋白质组学是指蛋白质组学.
背景情况:
- 多复合蛋白质组学在阿尔茨海默病研究中提高了精度.
- 前叶退化 (FTLD) 研究不足利用基于血液的蛋白质组学.
- 亲属FTLD队列使得研究症状前疾病阶段成为可能.
研究的目的:
- 识别血液中可检测的蛋白质,这些蛋白质在家族性FTLD中出现症状之前就会发生变化.
- 使用NUcleic acid链接免疫三明治测试 (NULISAseq) 来发现症状前的FTLD生物标志物.
- 研究C9orf72,GRN和MAPT突变载体中的早期分子变化.
主要方法:
- 120名家族FTLD突变携带者和40名对照人接受了血液抽取和临床评估.
- 使用NULISAseq (132种蛋白质) 进行的向血蛋白质组.
- 与对照组相比,用于确定蛋白质分歧值的疾病年龄估计;进行了正交测试验证.
主要成果:
- 在C9orf72 (14种蛋白质),GRN (24种蛋白质) 和MAPT (13种蛋白质) 突变载体和对照体中观察到显著的血蛋白差异.
- 突触和血管完整性标记物 (NPTX2,NPTXR,PGF) 在症状出现前有所不同.
- 确定了基因特异性信号 (例如,GRN中的GFAP,MAPT中的C9orf72,FLT1中的ENO2);NULISAseq的目标显示与Simoa和SomaScan一致.
结论:
- 血蛋白质的改变在预测症状发作之前,在家族性FTLD中可以检测到.
- 通过与Simoa和SomaScan测试的融合,NULISAseq的目标证明了有效性和大脑相关性.
- 在更大的队列中进行复制是必要的,以确认临床试验的概括性.
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