开发一种新的细胞隔离装置FlowMagicTM.
Tomoyuki Yoshida1, Yoshiaki Sakamoto1, Aya Tsuruta1
1H.U. Group Research Institute G.K., Akiruno, Tokyo, Japan.
PloS one
|October 22, 2025
概括
一种新的FlowMagicTM设备在隔离外围血液单核细胞 (PBMC) 期间显著减少红细胞 (RBC) 和颗粒细胞 (GRA) 污染. 这种方法在采集后的72小时内保持高的免疫细胞恢复率,改善了研究和诊断应用.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
- 生物技术是生物技术.
背景情况:
- 周围血液单核细胞 (PBMC) 隔离对于免疫学研究和临床诊断至关重要.
- 使用密度梯度离心的传统PBMC隔离方法容易受到红细胞 (RBC) 和粒细胞 (GRA) 的污染,特别是血液收集后时间增加.
- 现有的减轻污染的方法,如血液溶解治疗,往往是艰苦的,耗时的,并且可以引入实验文物.
研究的目的:
- 开发和评估一种新型隔离装置FlowMagicTM,旨在在PBMC隔离期间最大限度地减少红细胞和GRA污染.
- 与既有隔离技术相比,评估FlowMagicTM方法随时间的持续有效性.
- 确定FlowMagicTM对关键免疫细胞群的恢复率的影响.
主要方法:
- 开发FlowMagicTM设备,具有专有的两层插入结构,用于增强细胞分离.
- 使用FlowMagicTM,SepMateTM和LymphoprepTM方法从人类血液样本中分离PBMCs.
- 通过流细胞计量对红细胞和GRA污染以及免疫细胞群 (CD3+,CD4+,CD8+,CD19+,CD16/56+) 的量化.
- 血液采集后不同时间点 (最长72小时) 的污染水平和细胞恢复率的比较分析.
主要成果:
- FlowMagicTM显著降低了红细胞污染到无法检测的水平,超过了SepMateTM和LymphoprepTM的表现.
- 该装置在收集后长达72小时内,在减少红细胞污染方面表现出持续的有效性.
- 与SepMateTM和LymphoprepTM相比,FlowMagicTM在48小时和72小时后显著降低了GRA污染.
- 与SepMateTM和LymphoprepTM相比,使用FlowMagicTM观察到CD3+,CD4+,CD8+,CD19+和CD16/56+细胞的恢复率显著更高,即使在采集后48小时内也是如此.
结论:
- 该FlowMagicTM隔离装置提供了一种优越的方法,以获得高纯度的PBMCs,最小的RBC和GRA污染.
- 该方法在血液采集后长时间内提供持续的有效性,提高了样本的可用性.
- FlowMagicTM提高了免疫细胞恢复率,使其成为研究,诊断和临床应用的宝贵工具.
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