来自Saussurea laniceps花中的一个pectin多糖的免疫调节活性对巨细胞极化的影响
Wenbo Chen1, Xiaolu Zhu2, Xuan Xin3
1School of Food Science & Chemical Engineering, Zhengzhou University of Technology, Zhengzhou, He'nan 450044, China.
International journal of biological macromolecules
|August 16, 2024
概括
沙苏里亚兰尼塞普斯 (Saussurea laniceps pectin polysaccharide SLP-4) 增强了巨细胞的免疫活动. 它增强了细胞和促炎性细胞因子的产生,表明作为免疫调节补充剂的潜力.
科学领域:
- 免疫学 免疫学 免疫学
- 药理学 药理学是指药理学的学科.
- 自然产品 化学 化学
背景情况:
- 豆 (Saussurea laniceps) 是一种传统的药用草本.
- 以前从S. laniceps花中分离出一种点多糖,SLP-4.
- 了解SLP-4的免疫调节作用对于其治疗潜力至关重要.
研究的目的:
- 研究SLP-4的免疫调节活性.
- 分析SLP-4对巨细胞 (RAW 264.7细胞) 两极分化的影响.
- 阐明SLP-4作用的潜在分子机制.
主要方法:
- 评估巨细胞的皮诺细胞和细胞能力.
- 测量氧化,TNF-α和IL-6的表达和分泌.
- 通过TLR2和TLR4.4研究MAPK和NF-κB信号通路的激活.
- 从M2到M1表型分析巨细胞两极分化.
主要成果:
- SLP-4显著增强了巨细胞的皮诺细胞和细胞能力.
- 在800μg/mL时,SLP-4促进了氧化 (6.4倍增加),TNF-α (7.7倍增加) 和IL-6 (11.9倍增加) 的分泌.
- SLP-4诱导了M1极化,并通过MAPK和NF-κB通路将M2巨转移到M1表型.
- 收费类受体2和4与SLP-4的作用机制有关.
结论:
- 通过增强巨细胞功能,SLP-4表现出显著的免疫调节活性.
- 该化合物有效地促进M1巨细胞两极分化,这对于免疫反应至关重要.
- SLP-4显示出作为免疫调节的功能补充剂的潜力.
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