用干扰素治疗的巨细胞通过细胞外囊泡在淋巴细胞中诱导不同的反应
Flavia Giannessi1,2, Zulema Percario2, Valentina Lombardi2
1Neuroimmunology Unit, IRCCS Santa Lucia Foundation, Via Ardeatina 306-354, 00179 Rome, Italy.
iScience
|June 4, 2024
概括
干扰素 (IFN) 改变了巨细胞释放的小细胞外囊泡 (sEV) 的内容和功能. 这影响了淋巴细胞激活和IL-17释放,揭示了IFN.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 分子生物学分子生物学
背景情况:
- 细胞外囊泡 (EVs) 中介细胞间通信.
- 干扰素 (IFN) 对EV含量的影响在很大程度上是未知的.
研究的目的:
- 研究IFN-α2b,IFN-β,IFN-γ和IFN-λ1/2如何影响单细胞衍生巨细胞 (MDM) 的EV分子载荷.
- 为了确定IFN调节的EVs对淋巴细胞活动的功能影响.
主要方法:
- 主要的MDMs被用各种IFN治疗.
- 小型电动汽车 (sEV) 使用尺寸排除色谱进行净化.
- 纳米粒子跟踪分析,流动细胞计和淋巴细胞激活试验被采用.
主要成果:
- IFN治疗显著降低了SEVs上的外体标志物 (CD9,CD63,CD81) 的调控.
- 在sEV上,IFN调节了粘附分子,MHC和促凝蛋白.
- 用IFN治疗的MDM衍生的sEVs改变了淋巴细胞激活和IL-17释放.
结论:
- IFN影响了巨细胞衍生的sEVs的生物发生和免疫特征.
- IFN调节的sEVs在调节淋巴细胞功能方面发挥作用.
- 这项研究突出了通过EVs通过IFN介导的免疫调节的新机制.
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