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来自Panax人参C.A.Meyer根的多糖化合物的结构特征及其触发的潜在免疫调节和辐射保护活动

Lei Feng¹, Peixin Shi², Lichun Zhao²

¹Department of Pharmacognosy and Utilization Key Laboratory of Northeast Plant Materials, School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang 110016, China; Department of Pharmacy, the First Hospital of China Medical University, Shenyang 110001, China.

International journal of biological macromolecules

|September 26, 2024

概括

人参多糖 (GPS) 被分离和表征. 由于其独特的结构,GPS-2表现出优异的免疫调节和辐射保护作用,突出了其作为健康促进剂的潜力.

科学领域:

自然产品化学自然产品化学
免疫学免疫学免疫学
辐射保护剂辐射保护剂

背景情况:

人参多糖 (GPS) 以其健康益处而闻名.
由于GPS的功能性质,研究对GPS的兴趣越来越大.
了解GPS的结构-活动关系对于其应用至关重要.

研究的目的:

从帕纳克斯人参中分离和表征多糖分.
评估这些分量的免疫调节和辐射保护作用.
为了将GPS的结构特征与其生物活性相关联.

主要方法:

三种纯化的多糖分 (GPS-1a,GPS-1b,GPS-2) 从帕纳克斯人参根提取物中获得.
结构分析涉及确定链接模式和单糖组成.
通过测量巨细胞化,淋巴细胞增殖和细胞因子分泌来评估免疫调节活性.
在被辐射的小鼠中,通过评估器官指数,血细胞计数和骨髓细胞性来评估辐射保护作用.

主要成果:

GPS-1a和GPS-1b具有类似的结构,主要由葡萄糖和银河糖组成.
GPS-2具有更复杂的结构,包括葡萄糖,银河糖,阿拉比诺斯,拉姆诺斯和银河酸.
通过促进TLR2,NF-κB和TRAF6的表达,GPS-2显著增强了免疫调节功能,导致巨细胞活性增加和细胞因子释放.
GPS-2在小鼠中显示出显著的辐射保护功效,改善了血液学参数和辐射后骨髓恢复.

结论:

GPS-2的结构复杂性直接与其强大的免疫调节和辐射保护活动有关.
GPS-2显示出作为功能性食品成分或治疗剂的开发潜力很大.
这项研究阐明了人参多糖的结构-生物活性关系,支持它们在健康和医学中的使用.

关键词:

这是一种免疫调节剂.帕纳克斯人参 C. A. 迈耶尔多糖类多糖化物.辐射保护活动辐射保护活动结构分析结构分析

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