35个新NR5A1/SF-1变种在异性发育个体中鉴定的特征:SF1next研究
Rawda Naamneh Elzenaty1,2,3, Idoia Martinez de Lapiscina1,2,4,5,6,7, Chrysanthi Kouri1,2,3
1Pediatric Endocrinology, Diabetology and Metabolism, Department of Pediatrics, Inselspital, Bern University Hospital, University of Bern, 3010 Bern, Switzerland.
The Journal of clinical endocrinology and metabolism
|April 16, 2024
概括
在具有性别发育差异 (DSD) 的个体中,研究了类固醇原因子1 (NR5A1/SF-1) 的新型遗传变异. 功能性测试无法完全解释广泛的表型,这表明涉及多个基因的寡原性机制.
科学领域:
- 内分泌学 在内分泌学.
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 类固醇生成因子1 (NR5A1/SF-1) 是一个关键的核受体,调节性发育,类固醇生成和生殖.
- NR5A1/SF-1的遗传变异经常在性别发育差异 (DSD) 的个体中观察到,但它们的功能影响仍然基本上是未知的.
研究的目的:
- 鉴定了新发现的NR5A1/SF-1变异在SF1下一个群体的个人与DSD.
- 阐明与这些NR5A1/SF-1变异相关的多种表型背后的致病机制.
主要方法:
- 使用in silico预测工具来评估NR5A1/SF-1变体的功能影响.
- 在HEK293T细胞中进行了功能性测试,包括核转位的交换活化测试和西部斑点测试,使用光酶记者系统 (-152CYP11A1_pGL3).
- 广泛的文献审查指导了适当的功能研究的选择.
主要成果:
- 确定了35种新的NR5A1/SF-1变种,其中17种错误变种在功能上进行了测试.
- 交换活化试验显示,DNA结合域内40%的变异的活性降低,其他变异的活性变化.
- 在17种测试变体中,核转位在3种变体中受损;没有明确的基因型-表型或结构-功能相关性.
结论:
- 目前的遗传和功能分析并不能完全解释在具有新型NR5A1/SF-1变异的个体中观察到的广泛的表型谱.
- 在9个个体的其他基因中存在额外的可能致病变异,支持与NR5A1 / SF-1变异相关的DSD表型的寡原机制.
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