在患有多系统蛋白质病症和相关疾病的中国患者中,遗传谱和表型变异性
Xingyu Xia1,2,3, Xi Chen1,2, Yiming Sun1,2
1Department of Neurology, Huashan Hospital, Fudan University, Shanghai, 200040, People's Republic of China.
Degenerative neurological and neuromuscular disease
|February 25, 2026
概括
在29名中国患者中发现了多系统蛋白质病变 (MSP) 的遗传变异,主要影响男性,并呈现ALS,IBM或FTD. 下一代测序有助于诊断这些复杂的神经肌肉和认知障碍.
科学领域:
- 遗传学 是一个遗传学.
- 神经学 神经学
- 罕见疾病 罕见疾病
背景情况:
- 多系统蛋白质病变 (MSP) 涵盖了诸如包容性身体肌肉病变 (IBM),肌缩侧面硬化症 (ALS),前性痴呆症 (FTD) 和帕杰特骨病 (PDB) 等疾病.
- 最近的发现涉及其他基因,如MATR3,OPTN和ANXA11在MSP状况,扩大已知的遗传原因.
研究的目的:
- 在一个大型的中国患者队列中,研究多系统蛋白质病变 (MSP) 和相关疾病的遗传和临床特征.
- 确定与MSP相关的特定基因变异,并分析它们在受研究的人群中的临床表现.
主要方法:
- 下一代测序 (NGS) 和桑格测序用于检测诊断为ALS,IBM或痴呆症的953名患者的基因变异.
- 对29名患有MSP相关基因变异的确诊患者,系统地收集和分析了临床,病理,成像和电肌图学数据.
主要成果:
- 29名患者 (3.0%) 携带MSP相关的基因变异,主要是男性 (72.4%),发病时间在第三到第五十年之间.
- 最常见的表型是ALS (20/29),其次是IBM (10/29) 和FTD (7/29). 最常见的变体是ANXA11 (34.5%) 和VCP (20.7%).
- 基于基因变异,观察到不同的临床表现:VCP变异通常涉及下肢,而ANXA11/OPTN变异显示上肢或凸骨发作. 患有ALS发作的患者的进展速度比患有肌肉病发作的患者快.
结论:
- 这项研究扩大了对MSP和中国人口中相关疾病的临床和遗传谱的理解.
- 这些发现强调了下一代测序对于无法解释的神经肌肉或认知症状的诊断实用性,特别是在多系统参与的情况下.
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