老龄化人类卵巢的空间转录组特征
Meiling Zhang1,2, Fanghao Guo1,2, Qing Zhang1,2,3
1Center for Reproductive Medicine & Fertility Preservation Program, International Peace Maternity and Child Health Hospital, School of Medicine Shanghai Jiao Tong University, Shanghai, China.
Aging cell
|November 17, 2025
概括
人类卵巢老化通过改变细胞功能和连接性,损害了生育能力. 一种新的内皮细胞亚型显示,随着年龄的增长,炎症活性增加,突出了生殖障碍的潜在治疗点.
科学领域:
- 生殖生物学和衰老研究.
- 基因组学和转录组学.
- 衰老的细胞和分子机制.
背景情况:
- 卵巢衰老是一种复杂的生物过程,影响女性生育能力,增加生殖健康问题的风险.
- 了解卵巢衰老的时空动态对于解决与年龄相关的生育能力下降和疾病至关重要.
- 现有的研究缺乏一个全面的地图,详细介绍了人类卵巢衰老过程中的细胞和分子变化.
研究的目的:
- 构建人类卵巢组织的全面衰老地图,跨越广泛的年龄范围.
- 阐明人类卵巢衰老背后的时空动态和分子机制.
- 识别参与卵巢衰老和相关疾病的新型细胞类型和分子通路.
主要方法:
- 集成的单核RNA测序和空间转录组学.
- 分析了12岁至54岁的12个人类卵巢组织.
- 利用转录和空间映射来识别细胞和分子变化.
主要成果:
- 确定了与衰老相关的转录基因变化,包括线粒体功能受损和生殖结构发育.
- 发现了一种新的内皮细胞 (EDC) 亚型,即CLDN5+血液EDC,在老卵巢中具有增强的抗原呈现和炎症功能.
- 发现细胞连接中断和DLK1:NOTCH3轴放大,DLK1在原发性卵巢缺陷患者的粒状细胞上调.
结论:
- 人类卵巢衰老涉及显著的转录基因变化和受损的细胞相互作用.
- CLDN5+血液EDC表现出对年龄敏感的炎症和抗原呈现作用,这表明它们与卵巢衰老有关.
- 该研究提供了对卵巢衰老机制的见解,并确定了生殖障碍的潜在治疗点.
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