赛内林抑制氧化应激和H2O2-诱导过早衰老
Hiroshi Abe1, Hiroko P Indo2, Hiromu Ito1,3
1Department of Maxillofacial Radiology, Field of Oncology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima, 890-8544, Japan.
Cell biochemistry and biophysics
|January 20, 2025
概括
氨酸,一种来自Citrus aurantium的抗氧化剂,有效地对抗氧化应激和细胞过早衰老. 它可以防止过氧化引起的损伤,保护细胞功能并抑制关键的衰老途径.
科学领域:
- 生物化学 生物化学
- 细胞生物学 细胞生物学
- 抗氧化剂研究 抗氧化剂研究
背景情况:
- 来自Citrus aurantium的synephrine具有已知的脂解,抗炎和血管收缩性质.
- 它的抗氧化能力和对细胞衰老的影响以前尚不清楚.
- 氧化压力来自诸如过氧化 (H2O2) 这样的物质是已知的诱导因压力引起的过早衰老 (SIPS) 的诱因.
研究的目的:
- 为了研究synephrine的抗氧化活性.
- 为了确定synephrine是否可以防止人类WI-38细胞中H2O2诱导的过早衰老.
- 阐明突尼弗林潜在的抗衰老作用背后的分子机制.
主要方法:
- 电子自旋共振光谱被用来评估激素清理活动.
- 用H2O2对WI-38细胞进行治疗,以诱导氧化应激和过早衰老.
- 评估了synephrine对活性氧物种 (ROS) 水平,脂质过氧化,DNA损伤,线粒体功能和关键衰老标志物 (p53,p21,p16INK4A) 的影响.
主要成果:
- 赛内弗林显示显著地清除了基和超氧化离子基.
- 它有效地降低了H2O2诱导的ROS水平,脂质过氧化和WI-38细胞中的氧化DNA损伤.
- 赛内林抑制了线粒体功能障碍,并抑制了p53-p21和p16INK4A-pRB通路的激活,从而防止SIPS.
结论:
- 赛内林表现出强大的抗氧化特性.
- 它可以防止H2O2诱导的氧化应激和线粒体功能障碍.
- 通过抑制关键细胞循环调节通路,synephrine有效地抑制过早衰老.
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