二至丸及不同极性部位含药血清对HO诱导的肝细胞衰老的保护作用及物质基础研究

被引:20
作者
冯丽
王乙妃
高梦婷
李鑫
姚卫峰
张丽
机构
[1] 南京中医药大学江苏省中药资源产业化过程协同创新中心/中药资源产业化与方剂创新药物国家地方联合工程研究中心
关键词
二至丸; 不同极性部位; 肝细胞衰老; 化学成分; 分子对接;
D O I
暂无
中图分类号
R285.5 [中药实验药理];
学科分类号
100806 [中药药理学];
摘要
利用H2O2诱导的大鼠肝细胞(BRL)衰老模型探究二至丸及其不同极性部位(石油醚、乙酸乙酯、正丁醇、水和环烯醚萜苷类富集部位)含药血清的抗衰老作用。通过MTT法检测细胞增殖,β-半乳糖苷酶染色实验评估细胞衰老程度,流式细胞术检测细胞内活性氧(reactive oxygen species, ROS)的改变。采用快速液相系统-飞行时间质谱(ultra-fast liquid chromatography coupled with quadrupole-time of flight-mass spectrometry, UFLC-Q/TOF-MS)对二至丸及各部位化学成分进行分析,并结合分子对接技术筛选二至丸中可能的抗衰老活性成分。结果显示,600μmol·L-1的H2O2处理细胞72 h后可显著诱导细胞衰老,引起细胞增殖抑制、细胞内β-半乳糖苷酶活力和ROS水平的升高。细胞在诱导衰老前预先用二至丸含药血清处理可有效抵抗增殖抑制。除环烯醚萜苷类,二至丸及其他部位含药血清均可降低细胞内β-半乳糖苷酶活力和ROS水平。利用液质联用技术从二至丸中共鉴定出了49个化学成分并对各部位中的成分进行了比较。通过分子对接筛选出二至丸中14个可能的抗衰老活性组分。结合细胞实验、成分鉴定及分子对接结果,本实验初步推断二至丸抗衰老的有效成分为三萜类、黄酮类和苯乙醇类,为阐明二至丸抗衰老药效物质基础及作用机制提供了参考。
引用
收藏
页码:1137 / 1146
页数:10
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