双性TXNDC15变体与与乔伯特综合征相关的牙标志和前脑形相关
Yukiko Kuroda1, Tamaki Ikegawa2, Ayumi Kato3,4
1Division of Medical Genetics, Kanagawa Children's Medical Center, Yokohama, Japan. ykodama-hok@umin.ac.jp.
Journal of human genetics
|September 20, 2024
概括
TXNDC15中的遗传变异,一种纤维细胞生成蛋白,与梅克尔综合征 (MKS) 有关. 这项研究在患有朱伯特综合征 (JS) 样特征的患者中发现了新的TXNDC15变异,这表明MKS和JS是光谱纤维病变.
科学领域:
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
- 神经学 神经学
背景情况:
- TXNDC15编码了含有硫胺域的蛋白质15,这是一个蛋白质二硫化异酶,对纤毛发育至关重要.
- 双性TXNDC15变体与梅克尔综合征 (MKS) 相关,这是一种严重的纤毛病.
- 之前没有报告过TXNDC15变体在伯特综合征 (JS) 中.
研究的目的:
- 报告一个患有复合异性TXNDC15变体的新病例.
- 调查TXNDC15变异的表型谱,特别是与乔伯特综合征 (JS) 和梅克尔综合征 (MKS) 相关.
- 探索TXNDC15在纤毛病中的作用及其对JS的潜在贡献.
主要方法:
- 一个1岁的女性患者的临床和遗传分析.
- 详细的表型,包括神经成像 (大脑小虫子低成形,牙标志,全脑,皮质异常).
- 基因测序以确定TXNDC15.的致病变异.
主要成果:
- 这位患者呈现出复合异合体TXNDC15变体.
- 临床特征包括严重的发育迟缓,,大脑小虫子低成形与牙标志,轻度全脑大脑和皮质异常.
- 该表型显示了JS和MKS之间的重叠,包括在JS中不常见的特征.
结论:
- 双性TXNDC15变体可以表现为JS和MKS的重叠表型.
- 这些发现支持JS和MKS的概念,即与共享的致病基因的光谱纤维病变障碍.
- 低形态的TXNDC15变体可能会导致朱伯特综合征 (JS) 的发病.
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