在POI小鼠中,hUMSCs通过调节theca细胞中GSK3β介导的线粒体动态失衡来恢复卵巢功能
Yanlian Xiong1,2, Yaru Si3,1, Rengui Quan4
1Xu Rongxiang Regenerative Medicine Research Center, Binzhou Medical University, Yantai, 264003, China.
Scientific reports
|August 16, 2024
概括
人类带介质干细胞 (hUMSCs) 通过恢复卵巢功能和激素合成,有效地治疗小鼠的过早卵巢衰竭 (POI). 这涉及通过GSK3β抑制改善线粒体动力学和theca细胞中的激素生产.
科学领域:
- 生殖生物学 生殖生物学
- 干细胞疗法是一种干细胞疗法.
- 内分泌学 在内分泌学.
背景情况:
- 过早的卵巢缺陷 (POI) 是导致女性不孕的主要原因,其特点是生殖细胞丧失和卵巢衰竭.
- 人类带介质干细胞 (hUMSCs) 显示出缓解POI的潜力,但潜在的机制需要阐明.
- 环胺 (CTX) 用于在实验模型中诱导POI.
研究的目的:
- 在POI的小鼠模型中研究hUMSCs的治疗机制.
- 确定糖原合成酶激酶3β (GSK3β) 在CTX诱导的POI和hUMSC治疗中的作用.
- 评估hUMSCs对卵巢功能,线粒体动态和合成的影响.
主要方法:
- 在体内 (注射CTX的小鼠) 和体外 (CTX处理的theca细胞) POI模型的建立.
- 用hUMSCs或hUMSC培养的超剂进行治疗.
- 使用血素和 (H&E) 染色,ELISA,JC-1标签,西布洛特,免疫光 (IF) 和qRT-PCR进行评估.
主要成果:
- CTX诱导了卵巢功能障碍,降低了水平,并在ca细胞中损害了线粒体膜潜能.
- 在体内进行的hUMSC治疗恢复了卵巢结构和功能,减少了荷尔蒙异常.
- 在实验室中,hUMSC超级生物抑制了GSK3β,缓解了线粒体动力学不平衡,并增强了theca细胞中的合成.
结论:
- hUMSCs的治疗有效地减轻了小鼠的POI损伤.
- hUMSC通过抑制GSK3β,重新平衡线粒体动力学,并重新启动theca细胞中的合成来恢复卵巢功能.
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