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通过KEAP1/WDR23双重抑制,依赖流量的NRF2功能障碍有助于静脉疾病中的内皮氧化损伤
C L Karthika1, S Ahalya2, B J Sreelakshmi1
1Cardiovascular Diseases and Diabetes Biology, Rajiv Gandhi Centre for Biotechnology (BRIC-RGCB), Thiruvananthapuram, Kerala 695014, India.
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie
|February 25, 2026
概括
变化的静脉血流会通过破坏NRF2信号来损害抗氧化防御. 自然化合物普埃拉林显示出恢复这些防御和减少内皮细胞中氧化应激的潜力.
科学领域:
- 心血管生物学 心血管生物学
- 分子医学是分子医学.
- 生物材料科学 生物材料科学
背景情况:
- 改变的血液动力学与静脉静脉病理生理学有关.
- 人们对静脉流和内皮功能障碍之间的分子联系知之甚少.
- NRF2抗氧化剂信号传递对于内皮保护至关重要.
研究的目的:
- 为了研究静脉静脉中NRF2抗氧化剂信号.
- 通过明显的剪切应力模式来确定NRF2的调节.
- 为了评估Puerarin在慢性静脉疾病中的治疗潜力.
主要方法:
- 从静脉静脉患者和对照对细血管静脉的比较分析.
- 基因和蛋白质表达分析 (qRT-PCR,西部斑块,IHC).
- 微流体系统将内皮细胞暴露在层状和振荡式剪切应力中.
主要成果:
- 静脉静脉显示下调的NRF2和抗氧化基因,与上调的KEAP1.
- 在实验室中,振荡剪切应力通过KEAP1和WDR23.3损害了NRF2通过KEAP1和WDR23的信号传输.
- 普埃拉林恢复了NRF2信号传递,减少了氧化应激标志物 (ROS,脂质过氧化).
结论:
- 振荡性静脉剪切应力通过NRF2抑制破坏内皮的抗氧化防御.
- KEAP1和WDR23是改变血液动力学的NRF2的关键调节者.
- 普埃拉林显示出作为慢性静脉疾病的机械生物学治疗的潜力.
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