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米托金通过激活NRF2-帕金恩轴来缓解骨关节炎的进展
Liangcai Hou1, Genchun Wang1, Xiong Zhang1
1Department of Orthopedics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China.
iScience
|September 11, 2023
概括
米托金 (MitoQ) 通过激活NRF2抗氧化途径来缓解骨关节炎,保护软骨免受损伤. 这项研究揭示了NRF2/帕金轴作为MitoQ的一个关键机制.
科学领域:
- 生物医学科学 生物医学科学
- 细胞生物学 细胞生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 骨关节炎 (OA) 是一种常见的退行性关节疾病,特别是在老年人中.
- NRF2抗氧化系统对于细胞的氧化还原平衡至关重要.
- 米托金 (MitoQ) 是一种针对线粒体的向抗氧化剂.
研究的目的:
- 为了调查MitoQ是否可以缓解骨关节炎.
- 阐明NRF2/帕金轴在MitoQ对OA的保护作用中的作用.
主要方法:
- 使用介质素 (IL) - 1β诱导的OA冠状细胞和不稳定的中间半月 (DMM) 诱导的OA小鼠模型.
- 评估细胞外基质 (ECM) 降解,炎症,活性氧物种 (ROS) 和脂质ROS水平.
- 通过沉默和敲击技术操纵NRF2和帕金表达.
主要成果:
- MitoQ激活了OA软骨细胞中的NRF2通路,减少了ECM降解和炎症.
- MitoQ增加了谷氨过氧化酶4 (GPX4) 的表达,降低了ROS和脂质ROS.
- 抑制NRF2降低了MitoQ的保护作用;帕金镇压增强了NRF2通路并抑制了OA的进展.
- 在OA小鼠模型中,MitoQ的使用减轻了软骨的破坏.
结论:
- MitoQ通过维持软骨平衡来证明骨关节炎的治疗潜力.
- 米托Q的保护作用通过NRF2/帕金轴进行介导.
- 确定了NRF2和帕金斯之间的负反循环,影响了OA的进展.
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