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中国农学通报 ›› 2022, Vol. 38 ›› Issue (9): 143-150.doi: 10.11924/j.issn.1000-6850.casb2021-0445

所属专题: 生物技术 食用菌 食用菌

• 食品·营养·检测·安全 • 上一篇    下一篇

黑木耳凝集素的提取优化及体外抗肿瘤活性的研究

苏林贺1,2(), 黄东1,2, 曾伟民1,2(), 张彦龙1,2()   

  1. 1黑龙江大学,农业微生物技术教育部工程研究中心,哈尔滨 150500
    2黑龙江大学生命科学学院 黑龙江省普通高校微生物重点实验室,哈尔滨 150080
  • 收稿日期:2021-04-26 修回日期:2021-07-08 出版日期:2022-03-25 发布日期:2022-04-02
  • 通讯作者: 曾伟民,张彦龙
  • 作者简介:苏林贺,男,1998年出生,山东聊城人,在读硕士生,研究方向:天然药物化学。通信地址:150080 黑龙江省哈尔滨市南岗区哈西街道黑龙江大学生命科学学院,Tel:17852021273,E-mail: sulinhe333@163.com

Extraction Optimization of Auricularia auricula Lectin and Study on Its Anti-tumor Activity in Vitro

SU Linhe1,2(), HUANG Dong1,2, ZENG Weimin1,2(), ZHANG Yanlong1,2()   

  1. 1Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin 150500
    2School of Life Sciences, Heilongjiang University, Heilongjiang Provincial Key Laboratory of Microbiology, Harbin 150080
  • Received:2021-04-26 Revised:2021-07-08 Online:2022-03-25 Published:2022-04-02
  • Contact: ZENG Weimin,ZHANG Yanlong

摘要:

为了获得黑木耳凝集素的最优提取条件以及研究其对乳腺癌细胞MCF-7的抑制作用,采用单因素试验和响应面的方法,对提取时间、提取温度及料液比3个条件进行优化;采用CCK-8试剂法、形态学观察、划痕法来探究黑木耳凝集素对MCF-7的增殖、形态学变化和迁移率的影响来研究其抗肿瘤活性。结果表明:在浸提时间为8.47 h,料液比为1:51.71,(NH4)2SO4浓度为50.23%时,粗提液中的凝集活性最高,可得最大理论值为5.4795 HU;黑木耳凝集素处理细胞后,细胞的存活率降低,细胞数量减少,细胞形态发生变化,划痕闭合速度减慢。且与凝集素浓度具有依赖性,浓度越高细胞活性越低,细胞数量越少,对细胞的迁移率抑制性越强。该实验获得了黑木耳凝集素的最优提取条件,以及对MCF-7细胞的抑制效果,这对凝集素的提取方法及其抗肿瘤活性的研究提供了参考。

关键词: 黑木耳, 凝集素, 提取优化, 响应面, 抗肿瘤

Abstract:

The aims are to obtain the optimal extraction condition of Auricularia auricula lectin and study its inhibitory effect on breast cancer cells MCF-7. Single factor test and response surface method were used to optimize the extraction time, extraction temperature and material-to-liquid ratio; CCK-8 reagent method, morphological observation and scratch method were used to explore the effects of Auricularia auricula lectin on the proliferation, morphological change and migration rate of MCF-7 to study the anti-tumor activity. The results indicated that: when the extraction time was 8.47 h, the material-to-liquid ratio was 1:51.71, and the (NH4)2SO4 concentration was 50.23%, the agglutination activity in the crude extract was the highest, and the maximum theoretical value was 5.4795HU. After Auricularia auricula lectin treated the cells, the survival rate of the cells was decreased, the number of cells was reduced, the cell morphology was changed, and the scratch closure speed slowed down. And the change of cells was dependent on the concentration of lectin. The higher the concentration, the lower the cell viability and the smaller the number of cells, the stronger the inhibition on cell migration. This experiment obtained the optimal extraction condition of Auricularia auricula lectin and clarified its inhibitory effect on MCF-7 cells, which could provide certain reference for studying lectin extraction methods and its anti-tumor activity.

Key words: Auricularia auricula, lectin, extraction optimization, response surface method, anti-tumor

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