移植接受者的全源MSC输液在4小时内促进了不同的B细胞和T细胞表型
Sanne H Hendriks1, Sebastiaan Heidt1,2, Marlies E J Reinders2,3
1Department of Immunology, Leiden University Medical Center, Leiden University, Leiden, Netherlands.
Frontiers in immunology
|October 25, 2024
概括
在移植患者的全基性介质细胞 (MSCs) 输液中,免疫细胞发生了轻微的变化. 然而,在MSC治疗后不久,观察到特定B和T细胞子集的快速增加.
科学领域:
- 免疫学 免疫学 免疫学
- 移植免疫学 移植免疫学
- 细胞疗法是一种细胞疗法.
背景情况:
- 在固体器官移植中,研究中介细胞 stromal 细胞 (MSCs) 的免疫调节作用.
- 全基性MSC提供了标准化和在临床环境中立即可用性的潜力.
研究的目的:
- 在移植接受者中,分析外周血液免疫细胞组成,在异性骨髓衍生的MSC输液后.
- 通过使用质细胞计量来评估MSC治疗的免疫效应.
主要方法:
- 来自10名脏移植患者的Ib期海王星临床试验数据.
- 用40标记抗体面板进行质量细胞计.
- 移植后52周免疫细胞组成的分析.
主要成果:
- 在MSC输液后的后期时间点 (27,34,52周) 观察到主要免疫细胞系的轻微变化.
- 在MSC输液后4小时就发现了特定B和T细胞子集 (表达CD11b,CD11c,CD38,CD39,Ki-67) 的显著,快速增加.
- 结果证实了以前通过常规流细胞计的观察结果.
结论:
- CD11b+CD11c+CD38+CD39+Ki-67+ B和T细胞的短暂扩张需要进一步研究.
- 了解这些特定的免疫细胞动态对于阐明MSC治疗在移植中的免疫影响至关重要.
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