Structure elucidation and immunomodulatory activity of a beta glucan from the fruiting bodies of Ganoderma sinense.

Structure elucidation and immunomodulatory activity of a beta glucan from the fruiting bodies of Ganoderma sinense.
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紫芝子实体β-葡聚糖的结构解析及其免疫调节活性

DOI:
10.1371/journal.pone.0100380
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发表时间:
2014
期刊:
影响因子:
3.7
通讯作者:
Han QB
Han QB
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Han XQ;Yue GL;Yue RQ;Dong CX;Chan CL;Ko CH;Cheung WS;Luo KW;Dai H;Wong CK;Leung PC;Han QB

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从灵芝子实体中分离得到一种多糖,命名为GSP-2,分子大小为32 kDa。通过化学分析和波谱分析,确定其结构为β-葡聚糖,主链为(1→4)和(1→6)-Glcp,在(1→6)-Glcp的O-3位带有末端-和(1→3)-Glcp侧链。免疫学实验表明,GSP-2可显著诱导BALB/c小鼠脾细胞的增殖,且仅以B细胞为靶点,并能促进人外周血单核细胞和树突状细胞产生多种细胞因子。此外,荧光标记的GSP-2被RAW 264.7细胞吞噬,并诱导细胞分泌一氧化氮。
A polysaccharide named GSP-2 with a molecular size of 32 kDa was isolated from the fruiting bodies of Ganoderma sinense. Its structure was well elucidated, by a combined utilization of chemical and spectroscopic techniques, to be a β-glucan with a backbone of (1→4)– and (1→6)–Glcp, bearing terminal- and (1→3)–Glcp side-chains at O-3 position of (1→6)–Glcp. Immunological assay exhibited that GSP-2 significantly induced the proliferation of BALB/c mice splenocytes with target on only B cells, and enhanced the production of several cytokines in human peripheral blood mononuclear cells and derived dendritic cells. Besides, the fluorescent labeled GSP-2 was phagocytosed by the RAW 264.7 cells and induced the nitric oxide secretion from the cells.
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发表时间: 1998-11-01
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