溶解体多基因风险与Lewy体疾病神经病理的严重程度有关
Jon-Anders Tunold1,2, Manuela M X Tan1, Shunsuke Koga3
1Department of Neurology, Oslo University Hospital, 0424 Oslo, Norway.
Brain : a journal of neurology
|May 29, 2023
概括
阿尔茨海默氏症和帕金森氏症的遗传风险得分会影响莱维体疾病的病理学. 溶解体通路基因与勒维病理有关,特别是没有阿尔茨海默氏症的共同病理,这表明精确医学应用.
科学领域:
- 神经遗传学 神经遗传学
- 神经病理学神经病理学
- 神经退行性疾病 神经退行性疾病
背景情况:
- 错误折叠的α-synuclein积累定义了帕金森病 (PD) 和患有莱维体 (DLB) 的痴呆症,通常与同时发生的阿尔茨海默病 (AD) 病理学有关.
- 遗传研究确定了PD风险变体,但对DLB的神经病理异质性的洞察力有限.
- 了解对神经病理变异的遗传贡献对于向治疗至关重要.
研究的目的:
- 调查PD和AD的遗传风险得分 (GRS) 和Lewy体疾病 (LBD) 的特定神经病理之间的关系.
- 探索路径特定的GRS与Lewy病理的关联,特别是与AD共同病理的关系.
- 评估基因分析对预测LBD神经病理脆弱性的潜力.
主要方法:
- 使用全基因组关联研究总结统计数据计算PD和AD多基因风险得分 (PRS).
- 在神经病理学定义的LBD队列中分析PRS与Lewy,粉样β和tau病理的关联 (荷兰大脑银行,梅奥诊所大脑银行).
- 基于功能途径 (例如, lysosomal) 的分层 PRS 分析和在具有和没有 AD 同病理的子组中进行评估.
主要成果:
- 在两个LBD队列中,AD PRS与粉样β和tau病理相关.
- lysosomal路径PRS显示出与Lewy病理的显著关联,比一般PDPRS更一致.
- 这种 lysosomal 关联是特定于没有显著 AD 同病理的 LBD 样本.
结论:
- 患PD和AD的遗传风险等位基因对LBD的特定神经病理特征产生影响.
- lysosomal路径遗传风险位点与勒维病理有关,特别是在没有AD共同病理的情况下.
- 基因分析可能有助于预测LBD的神经病理脆弱性,支持精准医学方法.
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