欢迎访问《中国临床药理学与治疗学》杂志官方网站,今天是

中国临床药理学与治疗学 ›› 2010, Vol. 15 ›› Issue (8): 851-855.

• 基础研究 • 上一篇    下一篇

连翘三萜类化合物对人胃癌细胞株SGC-7901凋亡诱导机制的研究

孙婧1, 章斌2   

  1. 1江苏省人民医院肿瘤科, 2心胸外科,南京 210008,江苏
  • 收稿日期:2010-08-04 修回日期:2010-08-21 出版日期:2010-08-26 发布日期:2020-09-17
  • 通讯作者: 章斌,男,副主任医师,研究方向:胸部恶性肿瘤。Tel: 13951682298 E-mail: zhangbin9988@gmail.com
  • 作者简介:孙婧,女,主治医师,研究方向:消化道恶性肿瘤。Tel: 13914704178 E-mail: jingsun0826@126.com

Study on the apoptotic induction mechanism of triterpenes isolated from Forsythia suspense in human gastric cancer cell line SGC-7901

SUN Jing1, ZHANG Bin2   

  1. 1Department of Oncology of Jiangsu Provincial People's Hospital, 2Department of Cardiothoracic Surgery, Nanjing 210008, Jiangsu, China
  • Received:2010-08-04 Revised:2010-08-21 Online:2010-08-26 Published:2020-09-17

摘要: 目的: 观察连翘中分离所得两种三萜类化合物:达玛-24-烯-3β-乙酰氧基-20s-醇[20(s)-dammar-24-ene-3β, 20-diol-3β-acetate,DM]和五环齐墩果烷型三萜类化合物安博立酸(ambrolic acid,AA)对5种人消化道肿瘤细胞的抑制作用,以及AA对人胃癌细胞株SGC-7901的凋亡诱导作用。方法: MTT法观察AA和DM对5株人消化道肿瘤细胞株MKN-45、MKN-28、SGC-7901、PNAC-1、HepG-2的生长抑制作用,Annexin-V/PI染色流式细胞术测定SGC-7901细胞的凋亡率,Western blotting检测相关凋亡蛋白表达。结果: 两种三萜类化合物对人消化道肿瘤细胞有较好的抑制作用,其作用呈剂量依赖性;AA作用细胞72 h后可以明显诱导细胞凋亡,而DM对细胞未有凋亡诱导作用;AA可下调pro-caspase3、6、8、9蛋白和Bcl-2蛋白表达水平,同时可上调Bax蛋白水平。结论: AA和DM对5株人消化道肿瘤细胞有明显抑制作用,AA诱导SGC-7901细胞凋亡的主要途径可能为调节凋亡相关蛋白的表达。

关键词: 连翘, 安博立酸, 达玛-24-烯-3β-乙酰氧基-20s-醇, 胃癌, 凋亡

Abstract: AIM: To explore the inhibitory effects of ambrolic acid (AA) and 20(s)-dammar-24-ene-3β, 20-diol-3β-acetate (DM) on five human digestive cancer cell lines and the mechanism of apoptotic induction effect of AA on human gastric cancer cell line SGC-7901.METHODS: MTT assay was used to observe the anti-proliferation effect of AA and DM on MKN-45, MKN-28, SGC-7901, PNAC-1 and HepG-2 cancer cell lines. The apoptosis rates of SGC-7901 treated by AA or DM were determined by flow cytometry (FCM). With western blotting, the levels of apoptotic-pathway related proteins were determined.RESULTS: AA and DM inhibited the proliferation of cancer cells in a dose-dependent manner. FCM analysis showed that cells co-incubated with AA were induced apoptosis dose-dependently, while DM had no ability to induce apoptosis. AA could down-regulate the levels of pro-caspase 3, 6, 8, 9 and Bcl-2 proteins and up-regulate the levels of Bax proteins.CONCLUSION: AA and DM have significant inhibitory activities in 5 human digestive cancer cell lines. The potential mechanism of apoptosis-induction effect caused by AA on SGC-7901 may due to its ability to regulate the levels of apoptotic-related proteins.

Key words: Forsythia suspense, Ambrolic acid, 20(s)-dammar-24-ene-3β, 20-diol-3β-acetate, Gastric cancer, Apoptosis

中图分类号: