一种与错误的UBQLN2变种相关的日本家族性性
Kazuki Watanabe1,2, Tatsuya Ema3, Kenji Shimizu4
1Department of Biochemistry, Hamamatsu University School of Medicine, Hamamatsu, Japan.
Journal of human genetics
|August 21, 2025
概括
在UBQLN2的遗传变异可能导致运动神经元疾病如肌缩侧面硬化症 (ALS). 这项研究发现了一种新的UBQLN2变种,该变种在一家人中导致早期性,强调需要长期对患者进行监测.
科学领域:
- 遗传学
- 神经学
- 分子生物学
背景情况:
- 位于Xp11.21的UBQLN2基因编码了蛋白质平衡至关重要的ubiquilin 2.
- 已知UBQLN2中的Missense变异会导致肌缩性侧面硬化 (ALS),与一次性侧面硬化 (PLS) 和性 (SPG) 的罕见关联.
研究的目的:
- 在患有性的家庭中发现了一种新的UBQLN2变异.
- 描述与这种UBQLN2变体相关的临床表型和疾病进展.
- 审查和比较该表型与之前报告的UBQLN2相关运动神经元疾病.
主要方法:
- 在受影响的男性患者中进行基因分析以确定UBQLN2变体 (NM_013444. 4: c. 1442G> T, p.
- 临床评估患者,包括发病年龄,症状 (下肢,步态障碍) 和疾病进展.
- 对UBQLN2变体和相关运动神经元疾病表型的文献综述.
主要成果:
- 一个家庭的四名男性患者呈现出半性UBQLN2误解变体.
- 患者表现出儿童期开始的下肢和渐进的步态障碍,平均发病年龄为11岁.
- 与此前报告的ALS和PLS病例相比,疾病的进展速度较慢.
结论:
- 已发现的UBQLN2变体 (p.
- 与UBQLN2相关的SPG可能比ALS或PLS更早出现并进展缓慢.
- 由于可能导致ALS表型的进展,建议对UBQLN2相关的SPG患者进行密切监测.
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