结合葡萄皮质皮质激素与免疫检查点抑制剂对淋巴细胞激活基因-3和编程死亡-1表达的缓解作用
Smadar Gertel1,2, Ari Polachek2,3, Victoria Furer1,2
1Department of Rheumatology, Tel-Aviv Sourasky Medical Center, Tel-Aviv, Israel.
European journal of immunology
|August 11, 2025
概括
结合癌症免疫疗法 (ICI) 的葡萄糖皮质类药物可能会通过增加淋巴细胞激活基因-3 (LAG-3) 表达细胞来干扰治疗. 这种组合疗法还改变了细胞因子的产生和T细胞的增殖.
科学领域:
- 免疫学 免疫学 免疫学
- 在瘤学瘤学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 免疫检查点抑制剂 (ICI) 是有效的癌症免疫疗法,但可能导致与免疫相关的不良事件 (irAEs).
- 葡萄糖皮质类药物 (GCs) 经常用于管理irAEs.
- 之前的研究表明,GCs可以上调淋巴细胞激活基因-3 (LAG-3).
研究的目的:
- 调查GCs和ICI (Pembrolizumab) 对LAG-3和编程死亡-1 (PD-1) 表达的联合影响.
- 分析这种组合对细胞因子概况和免疫细胞细胞增殖的影响.
主要方法:
- 来自健康对照组的外周血液单核细胞 (PBMC) 和来自炎症性关节炎患者的突液单核细胞 (SFMC) 的分析.
- 用GC+Pembrolizumab (PEM) 或单独使用PEM进行治疗.
- 通过流式细胞计量测量细胞因子mRNA表达,细胞增殖和细胞表面标记物表达 (LAG-3,PD-1).
主要成果:
- GC+PEM抑制了促炎性细胞因子 (IFN-γ,TNF-α,IL-17A) 并诱导了IL-10.
- 与单独PEM相比,GC+PEM显著抑制了PBMC的扩散.
- GC+PEM增加了PBMC中的CD4+LAG-3+T细胞和SFMC中的CD14+LAG-3+细胞,但没有影响PD-1表达.
结论:
- 与ICI结合的GC可能具有对比的效果,可能上调循环和突液中的LAG-3表达细胞.
- 这些变化可能会干扰ICI治疗的疗效.
- 需要进一步的研究,以了解GC和ICI联合治疗的临床影响.
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