线粒体向的MitoQ减轻了PFOS诱导的血管收缩和cAMP抑制在人类胎盘动脉中的作用
Pankaj Yadav1, Alissa Hofmann1,2, Ruolin Song1
1Department of Comparative Biosciences, School of Veterinary Medicine, University of Wisconsin, Madison, WI 53715, USA.
Biology of reproduction
|September 19, 2025
概括
暴露在 perfluorooctanesulfonic 酸 (PFOS) 中会损害胎盘动脉功能,降低能量水平,可能导致妊娠高血压. 线粒体抗氧化剂MitoQ可以恢复血管健康和能量,提供一种治疗方法.
科学领域:
- 环境健康 环境健康
- 生殖生物学 生殖生物学
- 血管生理学 血管生理学
背景情况:
- perfluorooctanesulfonic 酸 (PFOS) 是一种持久性环境污染物,在产前妇女中发现高水平.
- PFOS可能会导致妊娠高血压,但其对胎盘血管功能的直接影响尚不清楚.
研究的目的:
- 研究PFOS对人类胎盘胆板动脉 (CPAs) 血管反应性的影响.
- 评估线粒体向抗氧化剂线粒 (MitoQ) 在缓解PFOS诱导的血管功能障碍方面的治疗潜力.
主要方法:
- 来自正常压力怀孕的人类CPA被暴露在PFOS (10μM) 或载体中24小时.
- 导线肌图评估了由cAMP和cGMP调解的收缩反应和血管扩张.
- 量化了ATP,cAMP和cGMP水平;使用MitoQ (100nM) 联合治疗来评估救生效应.
主要成果:
- 暴露于PFOS显著增加了CPA对KCl和内甲蛋白-1的收缩性.
- PFOS 影响了依赖cAMP的血管扩张,并降低了ATP和cAMP水平,但并没有降低cGMP.
- 与MitoQ联合治疗恢复了ATP/cAMP水平,使血管功能正常化,并逆转了PFOS诱导的超收缩性和cAMP通路抑制.
结论:
- 通过破坏线粒体功能和cAMP信号传递,PFOS直接损害胎盘血管平衡.
- 这些干扰意味着PFOS作为妊娠高血压的调解者.
- 像MitoQ这样的线粒体向干预措施在缓解PFOS相关的胎盘血管功能障碍方面表现有前途.
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