NR2F2中罕见的异合体变体会导致可识别的多重先天性异常综合征与发育延迟
Mythily Ganapathi1, Leticia S Matsuoka2, Michael March2
1Department of Pathology & Cell Biology, Columbia University Irving Medical Center, New York, NY, USA.
European journal of human genetics : EJHG
|July 27, 2023
概括
NR2F2基因的罕见变异会导致广泛的先天性异常,包括心脏缺陷和发育迟缓. 这项研究扩大了已知的NR2F2表型谱,并为受影响的个体提供了临床指导.
科学领域:
- 遗传学 遗传学 是一个
- 发展生物学 发展生物学
- 人类病理学 人类病理学
背景情况:
- 核受体子家族2组F成员2 (NR2F2),也称为COUP-TF2,是对哺乳动物发育至关重要的转录因子.
- 异合体NR2F2变体与先天性心脏病 (CHD),先天性隔膜 (CDH) 和性发育障碍 (DSD) 有关.
- 与NR2F2相关的疾病的全表型谱仍然不完全表征,报告的病例不到40例.
研究的目的:
- 描述NR2F2变异的以前未报告的个体的临床和分子细节.
- 扩大对与异合体NR2F2变体相关的表型谱的理解.
- 为诊断和管理NR2F2相关疾病提供临床建议.
主要方法:
- 对来自17名具有异性NR2F2变体的新个体的临床和分子数据的审查.
- 对变种类型的分析,包括功能丧失,误解和大删除.
- 汇编并与以前报告的病例进行比较.
主要成果:
- 鉴定出17例异构性NR2F2变异的新病例,其中大部分是新发病例.
- 扩大的表型谱包括子宫内生长限制,心脏病,CDH,DSD,发育迟缓,低血压,食困难,小头症,异形特征,功能衰竭,听力损失和血管形.
- 变体包括功能丧失,误解和大删除,其中一个病例是从轻微受影响的马赛克母亲遗传的.
结论:
- 罕见的,异构的NR2F2变体会导致一种高度可变的先天性异常综合征.
- 常见的特征包括心脏缺陷,发育迟缓/智力障碍,变形特征,食困难,低血压和生殖器异常.
- 为评估疑似NR2F2相关疾病的个体提供了临床建议.
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