Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (9): 143-150.doi: 10.11924/j.issn.1000-6850.casb2021-0445

Special Issue: 生物技术 食用菌 食用菌

Previous Articles     Next Articles

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 E-mail:sulinhe333@163.com;2002081@hlju.edu.cn;ylzhanghd@163.com

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

CLC Number: