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奇库塞图素IVa通过改善自和线性来减缓衰老
Jing-Zhi Wan1, Cheng-Quan Li2, Ying-Na Li3
1Key Lab for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, 710072, China; School of Public Health, Shaanxi University of Chinese Medicine, Xianyang, 712046, China.
Free radical biology & medicine
|February 2, 2025
概括
奇库塞图素IVa (CHS) 有效地对抗细胞和小鼠的衰老. 它通过激活AMPK通路来增强自和髓,减少氧化应激并改善线粒体功能.
科学领域:
- 老年学和细胞生物学
- 药理学和自然产品的研究.
背景情况:
- 来自药草的三类桑素Chikusetsu saponin IVa (CHS) 有着已知的健康益处,但其抗衰老作用尚未被探索.
- 衰老与细胞衰老和线粒体功能受损有关.
研究的目的:
- 为了研究奇库塞图素IVa (CHS) 的抗衰老作用.
- 阐明CHS潜在抗衰老特性背后的分子机制,重点关注自,线粒体和线粒体功能.
主要方法:
- 利用D-银糖诱导的老化小鼠模型和原始小鼠胚胎纤维细胞 (MEF) 的复制老化,用于体外和体内老化模型.
- 采用RNA测序来分析由CHS引起的基因表达变化.
- 通过使用遗传淘汰 (Atg7 KO),食抑制剂和AMPK抑制剂,研究了自,髓和AMPK通路的作用.
- 进行了分子对接,以确定CHS的直接结合目标.
主要成果:
- 在细胞和动物模型中,CHS显著减弱了衰老表型.
- CHS治疗提高了自和髓的调节,减少了线粒体反应性氧物种 (ROS),并增强了线粒体呼吸功能.
- CHS的抗衰老作用依赖于线粒和AMPK通路的激活,分子对接表明CHS与AMPK直接结合.
结论:
- 这项研究提供了第一个证据,即CHS具有强大的体外和体外抗衰老作用.
- CHS很可能通过直接结合和激活AMPK来发挥其抗衰老作用,这随后会增强自和髓.
- 改进的线粒体功能和减少由CHS介导的线粒体衰变导致的氧化应激,有助于其整体抗衰老功效,表明对衰老和相关疾病的潜在治疗应用.
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