全基因组关联研究确定了同核蛋白病变生物标志物的遗传决定因素
Emma N Somerville1,2, Lang Liu1,2, Michael Ta3,4
1The Neuro (Montreal Neurological Institute-Hospital), McGill University, Montreal, QC, Canada.
medRxiv : the preprint server for health sciences
|January 8, 2026
概括
遗传变异显著影响alpha-synucleinopathies中的生物标志物水平,影响诊断和治疗. 了解这些基因调节器对于准确的生物标志物解释和治疗开发至关重要.
科学领域:
- 神经科学是一个神经科学.
- 遗传学 是一个遗传学.
- 生物标志物发现发现
背景情况:
- α-synucleinopathies是异质的神经退行性疾病,缺乏可靠的生物标志物用于早期诊断和患者分层.
- 众所周知,遗传变异会影响生物标志物水平,影响它们在研究和临床环境中的有用性.
研究的目的:
- 确定与α-synucleinopathy病原发生相关的生物标志物水平的常见遗传调节剂.
- 调查遗传背景对α-synucleinopathies中的生物标志物概况的影响.
主要方法:
- 全基因组关联研究 (GWAS) 对来自帕金森病进展标志物倡议 (PPMI) 的581名个体的63个CSF,血和尿液生物标志物进行了基因组关联研究.
- 根据年龄,性别,疾病状况和主要成分进行调整的分析.
- 评估了帕金森病 (PD) 和患有莱维体 (DLB) 痴呆症的遗传风险位置和生物标志物水平之间的关联.
主要成果:
- 尿中双基酸盐 (BMP) 异型与LRRK2 p.G2019S和GBA1 p.N370S变体之间的联系得到证实,支持BMP作为LRRK2-PD生物标志物.
- 脑脊液Aβ与APOE ε4等位基显著相关,加强了它在粉样蛋白调节中的作用.
- 在CSF胺异型和MCF2L2/GMNN位点之间,以及在CSF tau和TP63位点之间发现了新的关联. 多个PD风险位点与溶酶体脂质生物标志物相关.
结论:
- 确定了α-synucleinopathy生物标志物的既定和新型遗传调节剂.
- 遗传背景显著影响生物标志物水平,需要在基于生物标志物的研究和临床应用中加以考虑.
- 考虑到遗传影响对于准确的生物标志物解释和治疗开发中的翻译相关性至关重要.
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