在Raw 264.7细胞中,B10细胞通过直接的细胞与细胞接触和IL-10分泌促进了亲溶解的巨细胞功能
Takumi Memida1, Elaheh Dalir Abdolahinia1, Guoqin Cao1
1Department of Oral Science and Translational Research, College of Dental Medicine, Nova Southeastern University, 3200 South University Drive, Fort Lauderdale, FL 33328, USA.
International immunology
|March 8, 2025
概括
调控性B细胞 (Breg),特别是产生IL-10的B10细胞,增强巨细胞的亲溶解功能. 这通过直接的细胞接触和IL-10分泌而发生,影响炎症性疾病中的免疫反应.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 调控性B细胞 (Breg),特别是产生IL-10的B10细胞,对于炎症和传染病中的免疫调节至关重要.
- 虽然已知B10细胞与T细胞的相互作用,但它们对其他免疫细胞 (如巨细胞) 的影响需要进一步调查.
研究的目的:
- 调查B10细胞对巨细胞表型和亲解决功能的影响.
- 阐明直接细胞与细胞接触和IL-10分泌在B10介导的巨细胞调节中的作用.
主要方法:
- 脊髓细胞衍生B10细胞 (来自野生类型或IL-10淘汰赛小鼠) 与RAW 264.7巨细胞共同培养.
- 使用跨井插件来区分直接细胞接触和可溶性因子介导作用.
- 评估了巨细胞极化,编程细胞死亡1 (PD-1) 表达,专门的亲溶解介质 (SPM) 生产 (RvD5) 和细胞活性.
主要成果:
- 与巨细胞直接共同培养的B10细胞促进了亲溶解巨细胞表型,并增加了PD-1表达.
- 当细胞与细胞接触被阻止 (跨井) 或使用缺乏IL-10的B细胞时,这些效应会减少.
- B10细胞增强了巨细胞释放RvD5和改善了细胞活性,而这些功能在没有直接接触或IL-10的情况下会受到损害.
结论:
- B10细胞促进亲溶解性巨细胞的分化和功能.
- 直接的细胞与细胞接触和B10细胞的IL-10分泌都是这种巨细胞调节的重要机制.
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