来自Panax notoginseng的新型多糖体的结构特征和免疫调节活性
Xue-Lian Jiang1, Gai-Fan Ma1, Bin-Bin Zhao2
1Key Laboratory of Traditional Chinese Medicine Resource and Compound Prescription, Ministry of Education, Hubei University of Chinese Medicine, Wuhan, China.
Frontiers in pharmacology
|May 31, 2023
概括
来自Panax notoginseng的新型多糖体 (PNPB1) 显示出显著的免疫增强作用. 这种化合物增强了免疫细胞的活动,并改善了免疫抑制小鼠的器官指数,突出了其作为免疫调节剂的潜力.
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
- 药理学 药理学是指药理学的学科.
背景情况:
- 在Panax notoginseng中的多糖是其免疫调节作用的关键.
- 了解这些多糖对于利用它们的治疗潜力至关重要.
研究的目的:
- 从Panax notoginseng中分离和描述多糖类.
- 研究孤立多糖的结构特征和免疫调节活性.
主要方法:
- 使用离子交换和凝透色谱的多糖分离.
- 通过FT-IR,GC-MS和NMR光谱学进行结构性表征.
- 在体内 (免疫抑制小鼠) 和体内 (细胞,巨细胞) 评估的免疫调节活性.
主要成果:
- 分离了一种新型的同质多糖体 (PNPB1),其分子量为9.3 × 10^5 Da.
- PNPB1主要包括葡萄糖,银河糖和阿拉比诺糖,具有特定的葡萄糖酸链接.
- PNPB1显著增强了免疫参数,包括体重,胸腺/脏指数,白细胞计数,淋巴细胞增殖,NO和细胞因子产生,巨细胞化和TLR2表达.
结论:
- 孤立的多糖体PNPB1表现出强大的免疫增强效应.
- 这些发现为了解notoginseng多糖的结构-活性关系提供了基础.
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