大蓟炭中香叶木素诱导人乳腺癌MCF-7细胞凋亡及其机制研究  

Effects of Diosmetin from Carbonized Cirsium japonicum on Apoptosis in Human MCF-7 Breast Cancer Cells and its Mechanisms

作　　者：姚亮亮[1] 王晓珊[2] 何军伟 岳丹洁 蒋福全[2] 郑里翔[3] 

机构地区：[1]江西中医药大学附属医院,南昌330006 [2]厦门大学,厦门361102 [3]江西中医药大学,南昌330004

出　　处：《天然产物研究与开发》2017年第5期767-773,共7页Natural Product Research and Development

基　　金：江西中医药大学校级科研项目(2013ZR004);国家自然科学基金(81160531);江西省自然科学基金(2016BAB205223)

摘　　要：研究大蓟炭中香叶木素诱导人乳腺癌MCF-7细胞凋亡及其作用机制。采用硅胶和Sephadex LH-20柱层析从大蓟炭中分离鉴定了三个黄酮类化合物,经NMR和MS鉴定他们的结构分别为香叶木素(1)、刺槐素(2)和柳川鱼黄素(3)。采用MTS方法检测不同浓度的香叶木素对MCF-7的细胞活力的影响;流式细胞术检测不同浓度的香叶木素处理对MCF-7细胞凋亡的作用;Western blot法检测香叶木素处理对细胞PARP、P-JNK等细胞凋亡相关蛋白表达的影响。MTS及流式细胞术结果显示香叶木素能显著抑制MCF-7的增殖并且诱导细胞凋亡;香叶木素可上调P-JNK促进细胞凋亡。结果表明香叶木素在体外实验能通过激活JNK细胞凋亡通路抑制MCF-7的增殖及促进细胞凋亡。To study the effects of diosmetin from carbonized Cirsium japonicum on apoptosis in human MCF-7 breast cancer cells and its mechanisms. Three flavonoids were isolated and purified from carbonized C. japonicum by silica gel and Sephadex LH-20 chromatography methods. Their structures were elucidated by NMR and MS spectroscopic data and identified as diosmetin（ 1 ）, acaeetin （2） and peetolinarigenin （3）. MTS assay was performed to detect the viability of MCF-7 ceils treated by different concentrations of diosmetin. The cell apoptosis rate was further analyzed by flow eytometry （FCM）. Western blot assay was applied to measure the apoptosis related protein expression levels of PARP, P-JNK. Diosmetin treatment on MCF-7 cells significantly inhibited cell proliferation and induced cell apoptosis. Diosmetin sig- nificantly downregulated P-JNK and upregulated eleaved-PARP protein expression. Diosmetin inhibited MCF-7 cell pro- liferation and induced cell apoptosis by activation of JNK pathway in vitro.

关 键 词：大蓟炭 香叶木素 人乳腺癌MCF-7细胞 细胞凋亡 作用机制 

分 类 号：R273[医药卫生—中西医结合]