食品科学 ›› 2010, Vol. 31 ›› Issue (21): 353-356.doi: 10.7506/spkx1002-6630-201021080

• 营养卫生 • 上一篇    下一篇

黄秋葵多糖组分对人体肿瘤细胞增殖的抑制作用

任丹丹,陈 谷*   

  1. 华南理工大学轻工与食品学院
  • 收稿日期:2010-03-19 出版日期:2010-11-15 发布日期:2010-12-29
  • 通讯作者: 陈谷 E-mail:chengu@scut.edu.cn

Inhibition Effect of Okra Polysaccharides on Proliferation of Human Cancer Cell Lines

REN Dan-dan,CHEN Gu*   

  1. College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China
  • Received:2010-03-19 Online:2010-11-15 Published:2010-12-29
  • Contact: CHEN Gu* E-mail:chengu@scut.edu.cn

摘要:

近年来多糖的抗肿瘤生物活性日益受到关注,本研究探讨黄秋葵多糖对人体卵巢癌细胞(OVCAR-3)、乳腺癌细胞(MCF-7)、宫颈癌细胞(Hela)、胃腺癌细胞(MCG-803)增殖的抑制作用。通过水提醇沉提取黄秋葵粗多糖(raw polysaccharide,RPS),经DEAE- 纤维素阴离子交换层析柱分离得到3 种多糖洗脱组分E1、E2 和E3;不同质量浓度黄秋葵多糖作用于人体肿瘤细胞72h,采用MTT 法对其抗癌活性进行分析。结果显示:RPS 和E1 组分可抑制OVCAR-3 细胞的生长,随质量浓度的增加细胞存活率降低,呈剂量依赖关系,最低可分别降至72.30% 和52.31%;E3 组分可抑制MCF-7、Hela 和MCG-803 细胞的生长,抑制作用呈剂量依赖关系,细胞的存活率最低可分别降至63.90%、63.51% 和67.71%。故而黄秋葵多糖组分可抑制多种肿瘤细胞生长,有开发成抗癌功能食品的前景。

关键词: 黄秋葵, 多糖, MTT, 抗癌生物活性, 功能食品

Abstract:

The anticancer bioactivity of polysaccharide has gained more and more attention in recent years. Herein, the inhibitory effect of polysaccharides extracted from okra, Abelmoschus esculentus (L.) Moench, was investigated on different human cancer cell lines, OVCAR-3, MCF-7, Hela and MCG-803 cells. Raw polysaccharide (RPS) was extracted from fresh okra fruit by ethanol precipitation and further purified by DEAE anion exchange chromatography to obtain fractions E1, E2 and E3. These cancer cells were treated with different concentrations of okra polysaccharides for 72 h and their proliferation were analyzed by MTT assay. RPS and E1 had a significant inhibition effect on the proliferation of OVCAR-3 cells in a dose-dependent manner, and the lowest survival rates were 72.30% and 52.31%, respectively. E3 had an obvious inhibition effect on MCF-7, Hela and MCG-803 cells with the lowest survival rates of 63.90%, 63.51% and 67.71%, respectively. Therefore, these investigations are significance of exploring and developing okra as functional foods.

Key words: okra, polysaccharide, MTT assay, anticancer bioactivity, functional food

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