结构特征和免疫调节活动的中国安吉丽卡多糖 (CAP) 和化CAP (sCAP) 在树突细胞上
Jie Qiao1, Zhenzhen Gao2, Chao Zhang3
1Institute of Traditional Chinese Veterinary Medicine, College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot 010018, PR China.
International journal of biological macromolecules
|May 26, 2024
概括
联聚糖 (sCAP) 通过促进MyD88/NF-κB通路来增强免疫细胞活性. 这种新型的多糖体显示出作为新疗法应用的免疫强化剂的潜力.
科学领域:
- 生物化学和分子生物学
- 免疫学 免疫学 免疫学
- 材料科学 材料科学 材料科学
背景情况:
- 多糖因其多样化的生物活动而闻名.
- 修改多糖类可以改变它们的物理化学特性和生物活性.
- 结合多糖的免疫调节潜力需要进一步研究.
研究的目的:
- 为了合成和表征结合多糖化物 (sCAP).
- 评估sCAP对骨髓衍生树突细胞 (BMDCs) 的免疫调节作用.
- 阐明参与sCAP免疫增强活动的潜在信号通路.
主要方法:
- sCAP是使用酸盐-化方法合成的.
- 描述包括SEM,分子量测定,单糖化合物组成,FT-IR和NMR.
- 通过流细胞计 (BMDC活性,表面标记物),淋巴细胞增殖试验,细胞因子分析和MyD88/NF-κB通路的西部斑点评估免疫调节效应.
主要成果:
- sCAP表现出光滑的,片状板形态和分子重量在0.90-97.08 KDa之间,主要由GalA,Ara和Gal组成.
- 在3.92-1.96μg·mL-1.1的度下,sCAP显著增强了BMDC的细胞活性,并上调了CD40,CD80,CD86和MHCII的表达.
- sCAP治疗导致IL-6,TGF-β1,INF-γ和TNF-α的水平升高,同时降低IL-1β和MIP-1α,与MyD88/NF-κB信号的增加相关.
结论:
- sCAP显示出显著的免疫调节特性,增强树突细胞功能并激活MyD88/NF-κB信号通路.
- sCAP作为一种新型免疫增强剂,有望为开发基于多糖的新疗法提供帮助.
- 这项研究为进一步研究sCAP在免疫学和药物输送中的应用提供了基础.
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