克罗恩病患者的外周单细胞在活跃疾病期间保持对GM-CSF的功能反应
Paul P Winkel1, Wendy Bergmann-Ewert2, Johannes Reiner3
1Rostock Medical School, Rostock University, Rostock, Germany.
Frontiers in immunology
|October 9, 2025
概括
克罗恩病患者的单细胞在GM-CSF激活后仍然具有功能,这表明细胞治疗的潜力. 这项研究探讨了治疗应用的活体CD中的单细胞反应.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞疗法细胞疗法
- 胃肠病学 胃肠病学
背景情况:
- 克罗恩氏病 (CD) 是一种慢性炎症疾病,治疗选择有限.
- 很大一部分CD患者对当前的抗炎疗法产生耐药性.
- 在临床前模型中,花细胞-巨细胞殖民地刺激因子 (GM-CSF) 激活的单细胞 (GMaMs) 显示出作为细胞疗法的前景.
研究的目的:
- 为了研究GM-CSF激活后活跃克罗恩病 (aCD) 患者的单细胞的功能.
- 为了确定炎症调解剂,药物或内在缺陷是否会损害aCD中的单细胞功能.
- 评估来自aCD患者的GMaM的潜在治疗疗效.
主要方法:
- 从8名aCD患者和健康捐赠者 (HD) 中分离出单细胞.
- 细胞在体外被GM-CSF激活.
- 评估迁移能力,粘附性,代谢活性,表面标记物表达和细胞因子释放.
- 通过脂聚糖 (LPS) 刺激来评估炎症反应.
主要成果:
- 与天真单细胞相比,GMaMs表现出增强的代谢活性,细胞因子的产生和粘附,在aCD患者和HD患者中具有相似的概况.
- 在两组GMaM中,LPS刺激诱导了显著的促炎细胞因子释放 (IL-8,MCP-1).
- 与HD相比,aCD GMaMs对GM-CSF的IL-10反应增加,以及LPS诱导的TNF-α和IFN-γ释放减少.
结论:
- 来自aCD患者的外周单细胞保留了对GM-CSF激活的功能反应.
- 保存的迁移性,粘合性,代谢性和细胞因子反应表明它适合用于细胞疗法.
- 观察到的细胞因子产生的差异可能表明疾病特异性调节,但不排除治疗用途.
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