通过线粒体共享和结构重塑来重新编程老化的卵巢微环境
Chia-Jung Li1,2,3,4,5, Li-Te Lin1,2,4,6,7,8, Pei-Hsuan Lin1,4,6
1Department of Obstetrics and Gynecology, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan.
Theranostics
|September 18, 2025
概括
细胞接触对于老化卵巢中的线粒体健康至关重要. 增强细胞连接可以恢复线粒体功能,提供一种新的策略来对抗生殖衰老.
科学领域:
- 生殖生物学 生殖生物学
- 细胞生物学 细胞生物学
- 线粒体生物学 线粒体生物学
背景情况:
- 卵巢颗粒细胞 (GCs) 和累积细胞 (CCs) 中的线粒体功能障碍是生殖衰老的标志,导致卵细胞质量和生育能力下降.
- 这些细胞中线粒体功能受损的显著导致女性生殖能力随着年龄的增长而下降.
研究的目的:
- 研究是否增强细胞骨动力学或细胞与细胞接触可以恢复老化卵巢细胞中的线粒体功能.
- 探索通过改善线粒体健康来抵消生殖衰老的新生再生策略.
主要方法:
- 在人类卵巢体细胞中通过道化纳米管 (TNT) 评估线粒体交换,使用共同培养,实时成像和线粒体标签.
- 使用FTY720调节细胞骨动力学,并使用3D细胞外基质 (ECM) 支架促进细胞与细胞接触.
- 通过ATP测定,线粒体膜潜力,海马生物能学,转录学和老年小鼠体内研究来评估功能结果.
主要成果:
- 随着年龄的增长,GC和CC之间的线粒体转移通过TNT减少;FTY720治疗恢复了这种转移,并改善了细胞生物能量.
- 3D ECM培养增强了线粒体功能并激活了YAP信号,证明了非药理学方法.
- 在老年小鼠中,FTY720治疗增加了卵泡数量,改善了卵细胞线粒体质量,并提高了抗穆勒激素 (AMH) 水平.
结论:
- 体细胞接触对于老化卵巢中的线粒体互补至关重要,突出显示了细胞间连接的重要性.
- 通过细胞骨或微环境调制重新激活内源性线粒体共享,可以恢复生物能功能.
- 准细胞间线粒体动力学是一个有前途的再生策略,可以对抗生殖衰老并改善生育结果.
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