Open AccessStructural Characterization and Antitumor Activity of Polysaccharides from Kaempferia galanga L.
Author(s) -
Xu Yang,
Haiyu Ji,
Yingying Feng,
Juan Yu,
Anjun Liu
Publication year - 2018
Publication title -
oxidative medicine and cellular longevity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.494
H-Index - 93
eISSN - 1942-0900
pISSN - 1942-0994
DOI - 10.1155/2018/9579262
Subject(s) - chemistry , polysaccharide , arabinose , gel permeation chromatography , uronic acid , in vivo , galactose , fourier transform infrared spectroscopy , column chromatography , chromatography , biochemistry , xylose , organic chemistry , fermentation , biology , polymer , physics , microbiology and biotechnology , quantum mechanics
The water-soluble polysaccharides from Kaempferia galanga L. (KGPs) were extracted and purified, and their structural characteristics and antitumor activity were further investigated. The UV spectrum, high-performance gel permeation chromatography (HPGPC), Fourier-transform infrared spectroscopy (FTIR), and ion chromatography (IC) were employed to evaluate the structural characteristics, and H22 tumor-bearing mice model was established to demonstrate the antitumor activity. Physicochemical analysis and UV spectrum results showed that the proportions of total sugar, protein, and uronic acid in KGPs were 85.23%, 0.54%, and 24.17%, respectively. HPGPC, FTIR, and IC indicated that KGPs were acidic polysaccharides with skeletal modes of pyranose rings and mainly composed of arabinose and galactose with the average molecular weight of 8.5 × 10 5 Da. The in vivo antitumor experiments showed that KGPs could effectively protect the thymus and spleen of tumor-bearing mice from solid tumors and enhance the immunoregulatory ability of CD4 + T cells, the cytotoxic effects of CD8 + T cells and NK cells, and finally resulting in the inhibitory effects on H22 solid tumors. This study provided a theoretical foundation for the practical application of KGPs in food and medical industries.