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龙多糖类通过树突细胞促进Th1和Treg细胞的分化

Shengwei Wang¹, Xiaoyan Chen², Qianxin Li²

¹School of Pharmacy and Food Engineering, Wuyi University, Jiangmen 529020, China; Key Laboratory of Food Nutrition and Functional Food of Hainan Province, College of Food Science and Engineering, Hainan University, Haikou 570228, China.

International journal of biological macromolecules

|August 1, 2025

概括

龙多糖 (LP) 激活树突细胞 (DC),增强免疫反应. 这种葡萄糖促进T细胞向Th1和调节性T细胞 (Treg) 子集的分化,增强细胞免疫力和免疫调节.

科学领域:

免疫学免疫学免疫学
细胞生物学细胞生物学
自然产品化学自然产品化学

背景情况:

树突细胞 (DCs) 是重要的免疫调节体.
葡萄糖因其免疫调节特性而闻名.
了解天然化合物对免疫细胞的影响至关重要.

研究的目的:

研究长多糖 (LP) 的免疫激活作用.
确定LP对树突细胞 (DC) 成熟和功能的影响.
阐明LP在调解T细胞分化中的作用.

主要方法:

主要骨髓衍生型树突细胞 (BMDCs) 用LP进行治疗.
流细胞计评估了DC表面分子 (CD80,CD86,MHC II) 和T细胞群.
测量了细胞因子的分泌 (IL-6,IL-10,IL-12).
通过RNA测序,免疫光和西部斑点分析了Toll-NF-κB通路.

主要成果:

LP减少了DC细胞分裂,但增加了CD80,CD86和MHC II的表达.
LP通过Toll-NF-κB通路促进了IL-6,IL-10和IL-12的分泌.
LP增强了T细胞的增殖和CD4+/CD8+T细胞的比率.
LP倾斜T细胞分化向Th1和Treg细胞,同时减少Th2细胞.

结论:

LP激活DCs,促进成熟和抗原呈现.
LP调节了DC细胞因子的产生和T细胞的激活.
LP驱动T细胞分化向Th1偏差的细胞免疫反应和Treg介导的调节.

关键词:

树突性细胞树突性细胞长安多糖是多糖的类型之一.T细胞分化的特征在Th1/Th2细胞中.

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