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枳椇果梗多糖对酒精诱导sh-sy5y细胞铁死亡的改善作用

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为探究枳棋果梗多糖(Hovenia dulcis fruit peduncle polysaccharides,HDPs)对酒精诱导sh-sy5y细胞铁死亡的改善作用,该文章对sh-sy5y细胞进行不同浓度酒精及HDPs处理,对处理后细胞的活性氧(Reactive oxygen species,ROS)、丙二醛(Malondialdehyde,MDA)、4-羟基壬烯醛(4-Hydroxynonenal,4-HNE)、还原型谷胱甘肽(Glutathione,GSH)、Fe2+含量及谷胱甘肽过氧化物酶(Glutathione peroxidase 4,GPX-4)活性进行测定,明确酒精对sh-sy5y细胞铁死亡的诱导及HDPs对铁死亡的改善作用;同时对细胞内Warburg效应关键指标丙酮酸脱氢酶激酶1(Pyruvate dehydrogenase kinase isozyme 1,PDK-1)、乳酸脱氢酶A(Lactate dehydrogenase A,LDHA)和乳酸表达量进行测定,探究酒精诱导sh-sy5y细胞铁死亡及HDPs对铁死亡改善作用的潜在机制.结果显示,酒精暴露后sh-sy5y细胞内ROS、4-HNE、Fe2+和MDA含量上升,细胞活力、GSH含量及GPX-4活性下降,同时PDK-1、LDHA和乳酸表达量增加;而HDPs可以显著抑制上述变化.结果表明,酒精暴露可诱导sh-sy5y细胞铁死亡,HDPs对铁死亡有改善作用;该抑制作用与下调铁死亡过程中的Warburg效应水平相关.研究结果可为明确HDPs对酒精性神经损伤的改善作用提供参考,对于促进积椇资源的开发利用具有一定意义.
Ameliorative Effect of Hovenia dulcis Peduncle Polysaccharides on Alcohol-Induced Ferroptosis in sh-sy5y Cells
In order to investigate the ameliorative effect of Hovenia dulcis fruit peduncle polysaccharides(HDPs)on alcohol-induced ferroptosis in sh-sy5y cells,sh-sy5y cells were treated with different concentrations of alcohol and HDPs.The contents of reactive oxygen species(ROS),malondialdehyde(MDA),4-hydroxynonenal(4-HNE),glutathione(GSH),Fe2+,and glutathione peroxidase 4(GPX-4)activity were measured to clarify the induction of ferroptosis by alcohol in sh-sy5y cells and the ameliorative effect of HDPs.At the same time,the key indicators of the Warburg effect,pyruvate dehydrogenase kinase isozyme 1(PDK-1),lactate dehydrogenase A(LDHA),and lactate expression were measured to explore the potential mechanism of alcohol-induced ferroptosis in sh-sy5y cells and the ameliorative effect of HDPs.The results showed that after exposure to alcohol,the contents of ROS,4-HNE,Fe2+,and MDA in sh-sy5y cells increased;the cell viability,GSH level,and GPX-4 activity decreased;at the same time,the expression levels of PDK-1,LDHA,and lactate increased,while HDPs could significantly inhibit these changes.The results indicated that alcohol exposure could induce ferroptosis in sh-sy5y cells and HDPs could ameliorate the ferroptosis.The ameliorative effect related to down-regulating the Warburg effect during ferroptosis.The research results provide a reference for clarifying the ameliorative effect of HDPs on alcohol-induced nerve injury,which is significance for promoting the development and utilization of Hovenia dulcis resources.

Hovenia dulcis fruit peduncle polysaccharidesalcoholsh-sy5y cellsferroptosisameliorative effect

张玉超、袁子飞、刘良禹、朱思洁、李玉勇、任文、雷豪、刘旭东

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茅台学院酿酒工程系,贵州仁怀 564507

茅台学院食品科学与工程系,贵州仁怀 564507

中国海洋大学食品科学与工程学院,山东青岛 266071

枳椇果梗多糖 酒精 sh-sy5y细胞 铁死亡 改善作用

2024

食品科技
北京市粮食科学研究所

食品科技

CSTPCD北大核心
影响因子:0.622
ISSN:1005-9989
年,卷(期):2024.49(10)