定义灵长类卵巢储备的细胞和分子起源
Sissy E Wamaitha1,2,3, Ernesto J Rojas4,5, Francesco Monticolo6
1Department of Molecular, Cell and Developmental Biology, University of California Los Angeles, Los Angeles, CA, USA.
Nature communications
|August 26, 2025
概括
灵长类的卵巢储备由特定的胎儿细胞形成,骨髓毛囊在出生前招募theca细胞来解释早期的性激素产生.
科学领域:
- 生殖生物学
- 发育生物学
- 灵长类动物的生殖健康
背景情况:
- 对于女性生育至关重要的卵巢储备来自胎儿发育过程中的原始卵泡.
- 人类胎儿卵巢的研究具有挑战性,
研究的目的:
- 在胎儿发育过程中研究灵长类毛囊的形成,使用 rhesus macaque 模型.
- 了解卵巢储备的细胞起源和早期的性别类固醇生成.
主要方法:
- 对 rhesus 的卵巢发育进行比较分析.
- 产前卵巢的组织学检查以确定细胞类型和卵泡来源.
主要成果:
- 产前灵长类卵巢表现出与人类相似的多种细胞类型.
- 原始毛囊是从后来出现的前粒状细胞亚型中形成的.
- 在出生之前,激活的髓毛囊会招募胎儿的theca细胞形成双细胞类固醇系统.
结论:
- rhesus macaque 作为一个有价值的灵长类卵巢储备的模型.
- 骨髓毛囊早期招募theca细胞解释了"迷你青春期"的现象.
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