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在匈牙利儿科神经纤维瘤1队列中,与拼接位变异相关的表型严重性增加:一项回顾性研究

Klára Veres^1,2, Benedek Nagy², Zsófia Ember²

¹Department of Pediatric Dermatology, Heim Pal National Pediatric Institute, 1089 Budapest, Hungary.

|January 25, 2025

概括

这项研究分析了204名患有神经纤维素瘤类型1 (NF1) 的匈牙利患者,确定了特定的NF1基因变异及其相关的临床特征. 拼接部位变异与更严重的NF1表型相关,包括plexiform神经纤维瘤和内发现.

科学领域:

遗传学是一个遗传学.
临床医学临床医学
神经科学是一个神经科学.

背景情况:

神经纤维素瘤类型1 (NF1) 是一种由NF1基因变异引起的遗传疾病.
了解基因型-表型相关性对于NF1管理至关重要.
以前的研究表明,NF1.1中临床相关的基因型-表型相关性有限.

研究的目的:

在匈牙利的一组NF1患者中调查基因型-表型相关性.
识别特定的NF1基因变异及其相关的临床表现.
基于不同变异类型的NF1表型的严重程度进行比较.

主要方法:

在15年内对204名匈牙利NF1患者进行了回顾性分析.
对70名患者进行了基因检测,确定了45种致病变体.
变体的分类包括移,无意义,拼接地点,错误突变和CNVs.

主要成果:

咖啡牛奶斑点是普遍存在的 (100%).
内形异常 (55.6%),利希结节 (35.6%),神经纤维瘤 (33.3%) 和骨异常 (31.1%) 是常见的.
拼接部位变异与严重的表型相关,包括plexiform神经纤维瘤 (37.5%) 和内发现 (62.5%).

结论:

NF1基因的拼接位变异与以前报告的更严重的NF1表型有关.
误解变异与较温和的NF1表型有关.
在NF1患者中,微切除综合征呈现出严重的表型.

关键词:

NF1基因是NF1的基因之一.国家储备系统 (NGS)基因型表型分析分析罕见的疾病罕见的疾病拼接地点突变的突变第1型神经纤维素瘤.

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