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周血管细胞从介质细胞向上皮细胞的转变有助于子宫内膜再上皮化
Shu-Yun Li1,2, Sarah Whiteside1, Bo Li1
1Reproductive Sciences Center, Division of Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
Nature communications
|November 19, 2025
概括
在子宫内存在的Nestin阳性周血管细胞对于子宫内膜再生至关重要. 雌激素信号抑制诺奇通路,激活这些细胞修复子宫内膜.
科学领域:
- 生殖生物学 生殖生物学
- 细胞生物学 细胞生物学
- 干细胞研究 干细胞研究
背景情况:
- 子宫内膜再生对女性生殖健康至关重要,可使经期和分娩后的子宫修复.
- 虽然已知上皮细胞和脑膜细胞有所贡献,但特定的干细胞/祖细胞和驱动子宫再上皮化的机制仍然不清楚.
研究的目的:
- 为了确定负责子宫内膜再上皮质化的特定细胞类型.
- 阐明在子宫修复过程中调节这些细胞的激活和功能的分子机制.
主要方法:
- 在小鼠模型中利用遗传血统追踪试验.
- 研究了诺奇信号和雌激素受体α (ESR1) 在调节周围血管细胞行为的作用.
主要成果:
- 确定了Nestin阳性周血管细胞作为子宫内膜再上皮质化的主要贡献者.
- 证明了依赖雌激素受体α (ESR1) 抑制Notch信号的抑制可以激活静止的Nestin阳性周围血管细胞.
- 显示这些激活细胞分化为上皮细胞,以恢复子宫内膜.
结论:
- 巢素阳性周血管细胞是子宫内膜再生的必不可少的原始细胞.
- 通过ESR1和Notch通路调制,雌激素信号控制这些细胞的激活和分化,揭示了子宫修复的新机制.
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