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来自Pinellia ternata的多糖和它们的衍生物:制备,结构特征和体外活性

Xiao-Liang Zhao^1,2, Zheng-Lei Guo¹, Kai-Li Qi¹

¹School of Life Science and Engineering, Lanzhou University of Technology, Lanzhou, 730050, PR China.

Chemistry & biodiversity

|May 28, 2024

概括

来自Pinellia ternata的多糖体具有抗氧化和抗瘤的特性. 修改后的版本显示出开发新的抗瘤药物和免疫增强疗法的巨大潜力.

科学领域:

植物化学和药理学
自然产品化学自然产品化学
药用植物研究药用植物研究

背景情况:

用各种条件提取Pinellia ternata多糖体 (PTC,PTH,PTB) 进行了提取.
PTC和PTH含有复杂的单糖化合物组成,而PTB更简单.
PTC和PTB具有三螺旋结构,表明特定的分子架构.

研究的目的:

描述Pinellia ternata多糖类 (PTC,PTH,PTB) 的特征.
评估它们的抗氧化活性和作为抗瘤剂的潜力.
研究化学修饰 (硫化,化,化) 对它们的生物活性的影响.

主要方法:

在不同的条件下从Pinellia ternata中提取多糖.
化学成分分析和结构阐明 (例如,三螺旋结构识别).
在体外抗氧化剂测试 (DPPH,超氧化物,基清理).
通过硫化,酸化和化衍生.
对HeLa和HepG2细胞系进行抗瘤活性评估.
在RAW264.7细胞中使用增殖试验评估免疫增强活性.
红外光谱学用于表征衍生物.

主要成果:

PTC对DPPH,超氧化物和基激素表现出强大的抗氧化活性.
化和硫化多糖在癌症细胞系上表现出显著的抗瘤作用.
化PTB抑制了HeLa和HepG2细胞的生长,而化PTC增强了免疫细胞的增殖.
特定的化学修饰导致了不同的生物活性概况.

结论:

皮内利亚特纳塔多糖具有固有的抗氧化和抗瘤特性.
化学衍生,特别是化和硫化,增强了它们的治疗潜力.
这些修饰过的多糖是开发新型抗瘤和免疫增强药物的有希望的候选人.

关键词:

它具有抗瘤活性.衍生工具衍生工具衍生工具增强免疫力的活动.皮内利亚 (Pinellia ternata) 是一个有色的植物.聚糖类是一种多糖类.

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