有证据表明NR2F2/COUP-TFII参与人类丸发育
Somboon Wankanit1,2, Housna Zidoune1,3, Joëlle Bignon-Topalovic1
1Human Developmental Genetics Unit, CNRS UMR 3738, Institut Pasteur, 75015, Paris, France.
Scientific reports
|August 1, 2024
概括
一种新型的NR2F2基因变异损害了COUP-TFII的功能,这是一种对人类丸发育和功能至关重要的核受体,影响了46,XY个体的性腺形成. 这一发现揭示了性发育障碍 (DSD).
科学领域:
- 内分泌学 在内分泌学.
- 遗传学 是一个遗传学.
- 发展生物学 发展生物学
背景情况:
- NR2F2对孤儿核受体COUP-TFII进行编码,这对小鼠胎儿性腺发育至关重要.
- 人类NR2F2变异与46,XX真正的双性恋有关,但COUP-TFII在人类丸中的作用尚不清楚.
研究的目的:
- 研究COUP-TFII在人类丸发育中的作用.
- 在患有46,XY性发育障碍 (DSD) 的患者中发现的一种新型NR2F2变异的特征.
主要方法:
- 一位患有46,XY DSD. 的患者的遗传分析.
- 在体外研究NR2F2变体蛋白质的稳定性,局部化和与NR5A1.1的相互作用.
- 报告者测试以评估NR5A1介导的基因激活.
主要成果:
- 在一个46,XY低男性化男孩中发现了一种新异构的NR2F2变体 (p.Arg246His),该男孩患有原发性性阴性腺症.
- 突变COUP-TFII蛋白没有影响NR5A1的相互作用,但对NR5A1介导的LHB和INSL3促进体激活失去了抑制作用.
- 这些发现表明,COUP-TFII在人类丸形成中起作用.
结论:
- COUP-TFII与人类丸的发育和功能有关.
- 这项研究扩展了参与46,XX和46,XY DSD的基因列表,包括NR2F2,NR5A1和WT1.1.
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