华南理工大学学报(自然科学版) ›› 2019, Vol. 47 ›› Issue (3): 101-108,152.doi: 10.12141/j.issn.1000-565X.180234

• 食品科学与技术 • 上一篇    下一篇

杨梅酮的体外抗氧化及抗肿瘤活性

苏健裕1 胡菡1 吴萍1 孟晓风1 徐振波1 郑华德2,3†   

  1. 1. 华南理工大学 食品科学与工程学院,广东 广州 510640;
    2. 华南理工大学 材料科学与工程学院,广东 广州 510640;
    3. 华南理工大学 华南协同创新研究院,广东 东莞 523000
  • 收稿日期:2018-05-17 修回日期:2018-10-02 出版日期:2019-03-25 发布日期:2019-01-31
  • 通信作者: 郑华德( 1978-) ,男,博士,副研究员,主要从事医用生物材料研究 E-mail:hdzheng@scut.edu.cn
  • 作者简介:苏健裕( 1979-) ,男,博士,副研究员,主要从事食品生物技术研究
  • 基金资助:
    广东 省 科 技 计 划 项 目 ( 2016A040402032,2016A010105020,2016A040402016 ) ; 广东省扬帆计划项目 ( 201312H05) ; 广州市科技计划项目( 201707010129) ; 华南理工大学中央高校基本科研业务费专项资金项目( 2017ZD084) ; 揭阳市科技计划项目( 2017xm020)

Antioxidant and Antitumor Activities of Myricetin In Vitro

 SU Jianyu1 HU Han1 WU Ping1 MENG Xiaofeng1 XU Zhenbo 1 ZHENG Huade 2,3   

  1.  1. School of Food Science and Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China; 2. School of Materials Science and Engineering,South China University of Technology,Guangzhou 510640,Guangdong, China; 3. South China Institute of Collaborative Innovation,Dongguan 523000,Guangdong,China
  • Received:2018-05-17 Revised:2018-10-02 Online:2019-03-25 Published:2019-01-31
  • Contact: 郑华德( 1978-) ,男,博士,副研究员,主要从事医用生物材料研究 E-mail:hdzheng@scut.edu.cn
  • About author:苏健裕( 1979-) ,男,博士,副研究员,主要从事食品生物技术研究
  • Supported by:
    Supported by the Technology Planning Project of Guangdong Province( 2016A040402032,2016A010105020, 2016A040402016) and the Yang Fan Innovative & Entrepreneurial Research Team Project( 201312H05)

摘要: 为研究杨梅酮的抗氧化和抗膀胱癌活性,进行了抗氧化试验和环境扫描电子显 微镜( ESEM) 观察. 结果表明,杨梅酮能有效抑制 AAPH 诱导的红细胞溶血,且效果呈浓 度依赖性,80 μmol /L 杨梅酮的溶血抑制率达到( 93. 67 ± 0. 01) % . 研究表明,杨梅酮可通 过增强细胞内 SOD、GPx 的酶活来调控 ROS 水平,减少 MDA 产生,避免脂质过氧化. 抗肿 瘤活性研究发现,杨梅酮对膀胱癌细胞 EJ 和 T24 以及正常膀胱细胞 SV-HUC-1 的抑制效 果也有剂量相关性,IC50分别为( 39. 8 ± 1. 0) 、( 49. 0 ± 0. 9) 、( 75. 9 ± 1. 8) μmol /L. 进一步 细胞吸收量分析表明,可能是 EJ 对杨梅酮有更强的细胞吸收导致了杨梅酮对 EJ 的 IC50 比 T24 更低( 更敏感的细胞毒性) . 采用流式细胞术分析杨梅酮对 EJ 细胞周期 DNA 分布 的影响,发现杨梅酮主要通过诱导 EJ 细胞产生凋亡及 S 期阻滞抑制细胞增殖.

关键词: 类黄酮, 抗氧化活性, 抗肿瘤

Abstract: Antioxidant assay and ESEM observation were carried out to investigate the antioxidant and anti-bladder cancer activities of myricetin. The results show that myricetin can effectively inhibit the AAPH-induced hemolysis of erythrocytes in a dose-dependent manner. The hemolysis inhibition rate of myricetin increases to ( 93. 67 ± 0. 01) % at a concentration of 80 μmol /L. A further experiment confirms that SOD and GPx antioxidant enzyme activities are enhanced to control ROS and MDA generation when erythrocytes are preconditioned by myricetin. Moreover,MTT tests indicate that myricetin could suppress the EJ and T24 bladder cancer cells proliferation in a dose-related manner with the half-maximal inhibitory concentration ( IC50 ) of ( 39. 8 ± 1. 0) μmol /L and ( 49. 0 ± 0. 9) μmol /L,as well as a lower cytotoxicity on normal bladder cell SV-HUC-1 with the IC50 of ( 75. 9 ± 1. 8) μmol /L. In addition, myricetin exhibits higher antitumor activity in EJ cell than that in T24 cells due to higher intracellular uptake amount of myricetin in EJ cells. Further flow cytometric studies of EJ cell cycle distribution show that myricetin inhibits the proliferation of EJ cancer cells mainly through induction of apoptosis and S cycle arrest.

Key words: flavonoids, antioxidant activity, antitumor

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