[关键词]
[摘要]
目的 探讨越鞠丸含药血清对缺氧诱导 L02 细胞糖代谢的影响及代谢机制。方法 考察不同缺氧时间 (12、24、36、48 h) 及胰岛素浓度 (10-7 、10-8 、10-9 mol·L-1 ) 对 L02 细胞葡萄糖消耗量及细胞活力的影响,确定 最佳缺氧时间与胰岛素浓度。设置正常血清组、模型组、二甲双胍组及 5%、10%、15% 越鞠丸含药血清组, 检测缺氧 24 h 后各组细胞的葡萄糖消耗量及细胞活力。采用高分辨液相色谱串联四极杆飞行时间质谱 (UPLC- Q-TOF-MS) 分析、收集各组细胞的代谢产物信号;借助 Mass Profiler Professional (MPP) 软件分析数据,使用正 交偏最小二乘判别分析 (OPLS-DA) 和主成分分析 (PCA) 筛选生物标记物;通过 METLIN、HMDB 数据库确定生 物标记物,并通过 Metabo Analyst 6.0 在线网站进行生物标记物的代谢通路分析。结果 缺氧 24 h、10-9 mol·L-1 胰岛素浓度为缺氧诱导 L02 细胞模型的最佳缺氧时间与造模浓度。与正常血清组比较,模型组 L02 细胞的葡 萄糖消耗量显著降低 (P<0.01) 。与模型组比较,二甲双胍组及 5%、10%、15% 越鞠丸含药血清组 L02 细胞的 葡萄糖消耗量均显著升高 (P<0.01) 。缺氧诱导的 L02 细胞中共有 16 种生物标记物发生显著变化 (P<0.05, P<0.01) ,越鞠丸含药血清干预后,N-棕榈酰精氨酸、α-甲基苯乙烯、氧化型谷胱甘肽、三氯乙醇葡萄糖醛 酸苷、非诺多泮、9-氧代十八碳二烯酸、12-科特、Semilepidinoside B、11, 12-环-二十碳三烯酸的表达水平显 著回调 (P<0.05,P<0.01) 。越鞠丸含药血清干预涉及的代谢通路包括谷胱甘肽代谢、花生四烯酸代谢、细胞 色素 P450 代谢。结论 越鞠丸含药血清干预可能通过调节谷胱甘肽代谢、花生四烯酸代谢、细胞色素 P450 代谢改善缺氧诱导 L02 细胞的糖代谢异常,提高葡萄糖消耗量。
[Key word]
[Abstract]
Objective To investigate the effects and metabolic mechanisms of Yueju Pills (YJP)-medicated serum on glucose metabolism in hypoxia-induced L02 cells. Methods Optimal hypoxia duration (12,24,36,48 hours) and insulin concentration (10-7 、10-8 、10-9 mol·L-1 ) for establishing the hypoxia model were determined by assessing glucose consumption and cell viability. L02 cells were divided into normal serum,model,metformin,and 5%/10%/ 15% YJP-medicated serum groups. Glucose consumption and cell viability were measured after 24-hour hypoxia. Cell metabolites were analyzed using UPLC-Q-TOF-MS. Data processing via Mass Profiler Professional (MPP) included orthogonal partial least squares-discriminant analysis (OPLS-DA) and principal component analysis (PCA) for biomarker screening. Metabolites were identified using METLIN and HMDB databases, with pathway analysis conducted via Metabo Analyst 6.0. Results Optimal conditions for hypoxia induction were 24 hours and 10-9 mol·L-1 insulin. Compared with the normal serum group,glucose consumption in the model group significantly decreased (P<0.01) . Metformin and all YJP serum groups (5%,10%,15%) exhibited significantly increased glucose consumption versus the model group (P<0.01) . Hypoxia induced significant alterations in 16 biomarkers (P<0.05,P<0.01) . YJP serum intervention markedly reversed levels of N-palmitoyl arginine,α-methylstyrene,oxidized glutathione,trichloroethanol glucuronide,fenoldopam,9-oxooctadecadienoic acid,12-ketolithocholic acid,Semilepidinoside B,and 11, 12- epoxyeicosatrienoic acid (P<0.05, P<0.01) . Key metabolic pathways regulated by YJP included glutathione metabolism, arachidonic acid metabolism, and cytochrome P450 metabolism. Conclusion YJP-medicated serum ameliorates hypoxia-induced glucose metabolic dysfunction in L02 cells by enhancing glucose consumption,potentially through modulation of glutathione metabolism,arachidonic acid metabolism,and cytochrome P450 pathways.
[中图分类号]
R285.5
[基金项目]
国家自然科学基金项目 (82060826) ;江西中医药大学校级科技创新团队发展计划项目 (CXTD22007) ;江西中医药大学校级研究生 创新专项资金项目 (JZYC23S78) 。