来自Bletilla条纹的葡萄甘南的结构特征和先天免疫调节作用
Fang Huang1, Yibin Fan2, Xinxin Liu1
1Molecular Nutrition Branch, National Engineering Research Center of Rice and By-Product Deep Processing/College of Food Science and Engineering, Central South University of Forestry and Technology, Changsha, Hunan, 410004, China.
International journal of biological macromolecules
|June 17, 2024
概括
布莱蒂拉条纹多糖 (BSP) 显示出强大的天生的免疫调节. 这种新型的葡萄康南增强了抗感染能力和巨细胞活动,提供了治疗潜力.
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:
- 白条纹是一种中国传统医药,具有潜在的治疗特性.
- 众所周知,多糖具有各种生物活性,包括免疫调节.
- 了解Bletilla条纹多糖 (BSP) 的结构-活性关系对于其应用至关重要.
研究的目的:
- 为了提取,净化和表征Bletilla条纹多糖 (BSP).
- 研究BSP.的先天免疫调节活性.
- 探索BSP作为免疫调节剂的潜力.
主要方法:
- 提取水和酒精沉用于原始多糖分离.
- 凝列染色学用于净化BSP.
- 单糖化合物组成分析,分子量确定和结构阐明 (链接分析).
- 在体外测定使用RAW264.7巨细胞来评估细胞分裂,氧化 (NO) 和瘤亡因子-α (TNF-α) 分泌.
- 在体内使用Caenorhabditis elegans对抗Pseudomonas aeruginosa的抗感染试验.
主要成果:
- 得到了纯化的低分子量水溶性中性葡萄甘 (BSP).
- BSP主要由和葡萄糖组成 (摩尔比为2.9:1) 的分子量为28.365Da.
- 结构分析揭示了一条线性主链,具有特定的糖链接和分支链碎片.
- BSP显著增强了RAW264.7巨细胞的细胞活性.
- 在巨细胞中,BSP刺激了NO和TNF-α的分泌.
- BSP 改善了 Caenorhabditis elegans 对抗 Pseudomonas aeruginosa 的抗感染能力.
结论:
- 布莱蒂拉条纹多糖 (BSP) 是一种具有显著天生的免疫调节活性的新型葡萄糖南.
- 通过增强巨细胞功能和抗感染能力,BSP表现出免疫调节作用.
- 这些发现支持BSP作为天然免疫调节剂的治疗潜力.
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