COUP-TFII调节了早期的双潜性淋巴体信号传递和对卵巢原始体的承诺
Lucas G A Ferreira1,2, Marina M L Kizys1, Gabriel A C Gama1
1Laboratory of Molecular and Translational Endocrinology (LEMT), Endocrinology Division, Department of Medicine, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil.
Cell & bioscience
|January 4, 2024
概括
转录因子COUP-TFII (NR2F2) 对于维持卵巢发育至关重要,因为它通过保持早期支持性腺细胞 (ESGCs) 的多能状态来维持卵巢发育. 损害NR2F2功能可能导致46,XX个体的丸发育.
科学领域:
- 发展生物学 发展生物学
- 遗传学 遗传学 是一个
- 内分泌学 在内分泌学.
背景情况:
- 卵巢发育通常在没有SRY基因表达的情况下发生.
- 编码COUP-TFII的NR2F2中的遗传变异是46,XX丸/卵巢性别发育差异 (T/OT-DSD) 的新奇原因.
- 在性腺发育过程中,COUP-TFII在早期支持性腺细胞 (ESGCs) 的作用尚未被探索.
研究的目的:
- 研究COUP-TFII在ESGC中的表达和功能.
- 为了确定COUP-TFII是否是卵巢发育网络的一部分.
- 了解NR2F2变体在46,XX T/OT-DSD中的作用.
主要方法:
- 在实验室中将诱导多能干细胞分化成双能性淋巴状细胞.
- 分析了人类胎儿生殖腺单细胞RNA测序数据集.
- 在一个类似于人体颗粒细胞的细胞系 (COV434) 中产生NR2F2淘汰 (KO) 并进行转录组分析.
主要成果:
- NR2F2表达在双能性腺体和早期多能细胞中升级,随着ESGCs分化为塞尔托利细胞而减少.
- NR2F2的异型A在双能细胞中高度表达,并且在46,XX T/OT-DSD患者中被破坏.
- 在COV434细胞中的NR2F2KO降低了ESGC/前花粉素标记物和诱导的间歇细胞特征.
结论:
- COUP-TFII保持ESGC多效,对于卵巢发育至关重要.
- 在性腺发育过程中,COUP-TFII调节细胞命运.
- 损伤的COUP-TFII功能会破坏ESGC的转录可塑性,可能会导致46,XX个体的丸发育.
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