硫化通过Nrf2降低了亨廷顿病中的氧化压力
Zige Jiang1, Dexiang Liu2, Tingting Li1
1Department of Physiology, School of Basic Medical Sciences, Cheeloo College of Medicine, Shandong University, Jinan, Shandong Province, China.
Neural regeneration research
|August 6, 2024
概括
硫化 (H2S) 在亨廷顿病模型中显示出神经保护作用. 补充H2S通过激活Nrf2通路来对抗因林酸引起的氧化应激,这表明其具有治疗潜力.
科学领域:
- 神经科学是一个神经科学.
- 生物化学 生物化学
- 药理学 药理学是指药理学的学科.
背景情况:
- 亨廷顿病 (HD) 病理生理学涉及神经毒素林酸的积累,导致氧化应激和神经毒性.
- 精确的分子机制连接林酸和HD病理学尚未完全理解.
研究的目的:
- 在亨廷顿病模型中研究硫化 (H2S) 在林酸诱导的神经毒性的作用.
- 探索H2S作为亨廷顿病治疗剂的潜力.
主要方法:
- 在体外 (PC12细胞) 和体内 (老鼠条状体) 建立了使用林酸的HD模型.
- 使用NaHS (H2S供体) 和ML385 (Nrf2抑制剂) 来评估H2S对氧化应激,线粒体功能和Nrf2通路激活的影响.
主要成果:
- 奎诺林酸的使用降低了H2S水平和细胞氨酸β-合成酶 (CBS) 的表达.
- NaHS治疗恢复了H2S水平,上调了CBS和Nrf2表达,并改善了氧化失衡和线粒体功能障碍.
- ML385扭转了外源H2S的神经保护作用.
结论:
- 硫化通过激活Nrf2通路,在HD模型中减轻林酸诱导的氧化应激.
- 硫化成为亨廷顿病治疗中的一个有希望的神经保护药物候选药物.
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