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Article Publish Status: FREE
Abstract Title:

Composition of Lycium barbarum polysaccharides and their apoptosis-inducing effect on human hepatoma SMMC-7721 cells.

Abstract Source:

Food Nutr Res. 2015 ;59:28696. Epub 2015 Nov 11. PMID: 26563650

Abstract Author(s):

Qian Zhang, Xiaoling Lv, Tao Wu, Qian Ma, Anguo Teng, Ying Zhang, Min Zhang

Article Affiliation:

Qian Zhang

Abstract:

BACKGROUND: Lycium barbarum polysaccharide (LBP) is a natural functional component that has a variety of biological activities. The molecular structures and apoptosis-inducing activities on human hepatoma SMMC-7721 cells of two LBP fractions, LBP-d and LBP-e, were investigated.

RESULTS: The results showed that LBP-d and LBP-e both consist of protein, uronic acid, and neutral sugars in different proportions. The structure of LBP was characterized by gas chromatography, periodate oxidation, and Smith degradation. LBP-d was composed of eight kinds of monosaccharides (fucose, ribose, rhamnose, arabinose, xylose, mannose, galactose, and glucose), while LBP-e was composed of six kinds of monosaccharides (fucose, rhamnose, arabinose, mannose, galactose, and glucose). LBP-d and LBP-e blocked SMMC-7721 cells at the G0/G1 and S phases with an inhibition ratio of 26.70 and 45.13%, respectively, and enhanced the concentration of Ca(2+) in the cytoplasm of SMMC-7721.

CONCLUSION: The contents of protein, uronic acid, and galactose in LBP-e were much higher than those in LBP-d, which might responsible for their different bioactivities. The results showed that LBP can be provided as a potential chemotherapeutic agent drug to treat cancer.

Study Type : In Vitro Study

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