食品科学 ›› 2010, Vol. 31 ›› Issue (15): 91-94.doi: 10.7506/spkx1002-6630-201015020

• 基础研究 • 上一篇    下一篇

桦褐孔菌多糖IOP3a的分离纯化及其体外抗肿瘤活性研究

陈义勇1,2,顾小红1,汤 坚1   

  1. 1.江南大学 食品科学与技术国家重点实验室 2.常熟理工学院生物与食品工程学院
  • 收稿日期:2009-12-28 出版日期:2010-08-15 发布日期:2010-12-29
  • 通讯作者: 陈义勇 E-mail:yiyongchen@hotmail.com

Isolation, Purification and Anti-tumor Activity of a Polysaccharide, IOP3a from Inonotus obliquus

CHEN Yi-yong1,2,GU Xiao-hong1,TANG Jian1   

  1. 1. State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China ;
    2. School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
  • Received:2009-12-28 Online:2010-08-15 Published:2010-12-29
  • Contact: CHEN Yi-yong1 E-mail:yiyongchen@hotmail.com

摘要:

采用水浴浸提,Sevage 法去除蛋白分离得到粗多糖,DEAE-SepharoseCL-6B 离子交换柱、SepharoseCL-6B和Sephadex G-200 凝胶柱层析得到桦褐孔菌均一纯多糖IOP3a,用MTT 法研究IOP3a 对Jurkat、Daudi 肿瘤细胞体外抑制作用。结果表明:IOP3a 对肿瘤细胞Jurkat 和Daudi 的增殖具有明显的体外抑制作用(P < 0.01),并且具有量效依赖性,其最大抑制率分别达到71.84% 和75.14%。

关键词: 桦褐孔菌多糖, 纯化, 体外抗肿瘤

Abstract:

Water extraction and deproteinization by Sevag method were carried out for the preparation of a crude polysaccharide extract from Inonotus obliquus, named IOP. IOP was subjected to sequential treatments with DEAE-Sepharose CL-6B anion exchange, Sepharose CL-6B and Sephadex G-200 columns for purification purpose and a polysaccharide fraction, named IOP3a, was obtained, which was identified to contain a single composition. The inhibitory effect of IOP3a on the proliferation of Jurkat and Daudi tumor cells in vitro was evaluated by MTT assay. It was found that IOP3a had an obvious anti-tumor activity in a dose-dependent manner in vitro (P < 0.01) and that the maximum inhibitory ratio of IOP3a on Jurkat and Daudi tumor cells were 71.84% and 75.14%, respectively.

Key words: Inonotus obliquus polysaccharide, purification, anti-tumor activity in vitro

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