RvD2减轻TNFɑ诱导的线粒体反应性氧物种通过NRF2信号在胎盘 trofhoblasts中的信号
Taija Hahka1,2,3, Deekshika Sekar2, Prakash Kumar Sahoo2
1Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, United States.
Frontiers in physiology
|April 17, 2025
概括
瑞索尔D2 (RvD2) 通过提高核因素红色素2相关因子2 (NRF2) 水平来增强抗氧化剂防御系统. 这样可以保护胎盘热囊细胞免受反应性氧物种 (ROS) 在妊娠高血压疾病 (HDP) 中引起的线粒体损伤.
科学领域:
- 生殖生物学 生殖生物学
- 分子医学是分子医学.
- 生物化学 生物化学
背景情况:
- 妊娠高血压障碍 (HDP) 提升TNFα,增加反应性氧物种 (ROS) 和破坏热囊细胞代谢.
- 作为omega-3脂肪酸衍生物的Resolvin D2 (RvD2) 已知具有抗炎性质,但其在对ROS的热囊细胞保护中的作用尚不清楚.
- 核因素红色素2相关因子2 (NRF2) 激活对于细胞防御氧化应激和维护氧化还原平衡至关重要.
研究的目的:
- 为了研究RvD2对TNFα诱导的热囊细胞中线粒体功能障碍的保护作用.
- 为了确定RvD2是否通过激活NRF2.2来增强抗氧化反应.
- 探索RvD2在缓解ROS和改善热囊细胞功能方面的潜力.
主要方法:
- 用RvD2预处理JEG细胞,然后暴露于TNFα.
- 评估了NRF2核转位,谷氨水平,线粒体功能,ROS产量和氧气消耗率.
- 来自HDP和正常压力怀孕的人类胎盘组织被分析TNFα和NRF2水平.
主要成果:
- 仅RvD2就增加了NRF2的核转位,谷氨水平和线粒体功能,同时减少了线粒体ROS.
- 单独TNFα降低了NRF2水平,增加了线粒体ROS和氧气消耗,以及损害了 trofhoblast 迁移.
- RvD2预处理保护了TNFα诱导的线粒体ROS,增加了NRF2水平,并恢复了线粒体的氧气消耗.
结论:
- 通过增加NRF2水平,RvD2增强了胎盘 trofhoblasts 中的内源抗氧化防御.
- RvD2减轻了线粒体的ROS,提供了对氧化应激的保护.
- 这些发现凸显了RvD2在治疗HDP相关并发症方面的潜在治疗作用.
关键词:
抗氧化剂是一种抗氧化剂.葡萄糖氨酸是什么 葡萄糖氨酸怀孕期间的高血压疾病.脂质调解剂 脂质调解剂代谢 代谢 代谢 代谢欧米茄-3 脂肪酸 欧米茄-3 脂肪酸氧化应激是一种氧化应激.超氧化物超氧化物更多相关视频
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