来自Artemisia argyi根的多糖的结构特征和免疫调节活性
Gai-Fan Ma1, Bin-Bin Zhao2, Peili Tang3
1School of Pharmacy, Hubei University of Chinese Medicine, Wuhan 430065, China.
来自Artemisia argyi根的两个果实素 (AARP-1和AARP-2) 提高免疫细胞活性,并对抗药物诱导的免疫抑制,显示出免疫疗法的潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 自然产品化学 自然产品化学
- 药理学 药理学是指药理学的学科.
背景情况:
- 传统上,Artemisia argyi根用于免疫支持.
- 多糖是其增强免疫力的关键.
- 识别特定的化合物对于治疗开发至关重要.
研究的目的:
- 从Artemisia argyi根中分离和特征化果实素.
- 在体外和体内研究这些果实素的免疫调节作用.
- 阐明它们免疫活动的潜在分子机制.
主要方法:
- 从A. argyi根中分离和分析两个果糖素 (AARP-1,AARP-2) 的结构.
- 在体外测试使用RAW264.7细胞来评估增殖,细胞和细胞因子分泌.
- 在小鼠中使用循环胺诱导免疫抑制模型的体内研究.
- 对托尔类受体4 (TLR4) /线素激活蛋白激酶 (MAPK) 信号通路的分析.
主要成果:
- 鉴定出AARP-1 (5.46 kDa) 和AARP-2 (3.21 kDa) 是新系列的胰岛素类型的果实素.
- 这两种化合物都通过TLR4/MAPK激活促进RAW264.7细胞增殖,细胞和细胞因子分泌.
- AARP-1和AARP-2有效地逆转了小鼠的免疫抑制,改善了免疫器官指数并减少了白血病.
结论:
- AARP-1和AARP-2具有显著的免疫调节特性.
- 这些果实素显示出作为自然治疗剂的潜力,用于低免疫性和相关疾病.
- 进一步研究它们在免疫治疗策略中的应用是有必要的.
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