卡普赛西诺酸葡萄糖酸通过TRPV1/AMPK依赖信号通路减轻HepG2细胞中的脂质积累
Abdeen Elkhedir1,2, Alsadig Yahya3, Eihab H Jadelrab2
1Agro-Industries Institute, Industrial Research and Consultancy Centre (IRCC) Khartoum Sudan.
Food science & nutrition
|July 4, 2025
概括
卡普赛西诺酸葡萄糖 (CG) 通过减少脂质积累和氧化应激,有效降低肝细胞中的甘油三和胆固醇. 这种新型化合物通过TRPV1/AMPK通路起作用,显示出对代谢健康的潜在影响.
科学领域:
- 生物化学 生物化学
- 细胞生物学 细胞生物学
- 营养学科学 营养学科学
背景情况:
- 过度脂质积累的代谢障碍是一个主要的全球健康问题.
- 与素相比,Capsaicinoid glucoside (CG) 是一种水溶性素衍生物,提供了增强的生物利用性和减少的尖性.
研究的目的:
- 为了研究CG的降脂效应.
- 阐明CG在肝细胞中的作用的潜在分子机制.
主要方法:
- 用油酸 (OA) 诱导的HepG2细胞模型来模拟肝脏脂质积累.
- 甘油三 (TG) 和总胆固醇 (TC) 水平的定量分析.
- 通过Oil Red O染色测量细胞内活性氧物种 (ROS) 和脂质滴积累.
- 关键代谢调节者的基因和蛋白质表达分析 (TRPV1,AMPK,SREBP-1c,FASN,PPARδ).
- 分子对接模拟以评估CG与TRPV1和AMPK的相互作用.
主要成果:
- 在OA诱导的HepG2细胞中,CG治疗 (100μg/mL) 显著降低了TG60.7%,TC降低了34.4%.
- CG显著降低了细胞内ROS水平和脂质滴滴积累.
- CG上调TRPV1和AMPK表达,同时降低脂原性标记物 (SREBP-1c,FASN) 和上调脂氧化标记物 (PPARδ).
- 分子对接证实了CG与TRPV1和AMPK的稳定结合.
结论:
- 在肝硬化症的细胞模型中,CG显示出显著的降脂和抗氧化特性.
- 观察到的效应通过TRPV1/AMPK信号通路进行介导.
- CG具有作为功能性食品成分或治疗补充剂的潜力,用于控制肝脂代谢.
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