大麻二醇对单细胞衍生的树突细胞分化和成熟的双重作用
Zsófia Pénzes1,2, Shahrzad Alimohammadi2,3, Dorottya Horváth1,2
1Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary.
Frontiers in immunology
|September 8, 2023
概括
大麻 (CBD) 重新编程人类树突细胞 (moDCs),在暴露于激活刺激时促进抗炎反应. 这种长期效应,而不是急性效应,将免疫信号转移到耐受性表型.
科学领域:
- 免疫学 免疫学 免疫学
- 皮肤病学 皮肤病学
- 药理学 药理学是指药理学的学科.
背景情况:
- 大麻 (Cannabis sativa) 提取物和植物性大麻素,如大麻 (CBD),大麻 (CBN) 和四大麻 (THCV) 越来越多地用于治疗目的,特别是在治疗皮肤疾病的局部配方中.
- 虽然植物大麻素在体外和体内表现出抗炎作用 (主要在小鼠模型中),但它们在调节人类树突细胞 (DC) 反应中的确切作用仍然基本上未被描述.
研究的目的:
- 研究CBD,CBN和THCV对人类单细胞衍生的树突细胞 (moDC) 的影响.
- 评估这些植物性大麻素对moDC活力,分化,成熟以及它们对托尔类受体 (TLR) 激动剂的反应的影响.
- 确定CBD对细胞因子产生,T细胞激活和moDCs的转录组的特定影响.
主要方法:
- 人类的moDCs被用高达10微米的CBD,CBN或THCV治疗.
- 评估了moDC的活力,分化和成熟,无论是单独的还是与TLR激动剂 (LPS,TLR7/8激动剂) 的合作.
- 使用Reactome路径分析分析了CBD对细胞因子 (IL-6,TNFα,IL-10) 生产,T细胞激活和moDC转录组的影响.
主要成果:
- 植物性大麻素在高达10μM的度下不会影响moDC的活力.
- 只有CBD在moDC成熟标记上表现出影响,并且在LPS激活时诱导了耐受性反应,其特征是增加IL-6,TNFα和IL-10的产生.
- 接受CBD治疗的moDCs在LPS刺激后表现出激活原始T细胞的能力降低,途径分析显示向IL-10信号转移,这表明具有宽容性表型.
结论:
- CBD对人类moDCs的适应性免疫反应产生抗炎作用,但只有当细胞通过长期暴露在激活刺激的存在下被重新编程时.
- 观察到的CBD的免疫调节作用不是由于急性,短期的相互作用,而是moDCs持续的重编程到一个宽容的状态.
相关概念视频
Mesenchymal Stem Cells
4.8K
Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
4.8K
Differentiation of Common Myeloid Progenitor Cells
3.2K
Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
3.2K


