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控制冷却和冷阶段在T细胞冷保存中的相关性

Gust Nuytten¹, Bruno G De Geest², Thomas De Beer¹

¹Department of Pharmaceutical Analysis, Ghent University, Ottergemsesteenweg 460, Ghent, 9000, Belgium.

|May 20, 2024

概括

优化细胞冷保存需要分析每个结阶段. 不同的冷却速率和冰晶形成会影响细胞活力和形态,突出显示需要特定阶段的过程控制.

科学领域:

细胞生物学细胞生物学
低温生物学低温生物学
生物工艺工程生物工艺工程

背景情况:

传统的冷保存使用单一的冷却速率,过度简化了复杂的冷过程.
这种方法忽略了单个结阶段对细胞活力的明显影响.

研究的目的:

研究每个不同的结阶段对细胞活力和形态学的影响.
为了阐明在特定冷阶段过程参数的变化如何影响冷保存的Jurkat T细胞.

主要方法:

利用自旋结来冷保存Jurkat T细胞,使用基于DMSO和无DMSO的配方.
在核形成前和冰晶生长期间,系统地改变了冷却速度.
使用共聚焦显微镜进行了形态分析,以评估解后的细胞完整性.

主要成果:

核化前和结晶后的冷却速度显著影响了细胞活力.
冰晶形成的速度是影响两种配方可行性的关键因素.
核形成时超冷的程度并没有显著影响细胞活力.
细胞形态,包括细胞骨完整性和体积,根据配方和过程参数进行了改变.

结论:

细胞结过程的每个阶段都极大地影响了解后的生命力和细胞形态.
优化冷保存需要详细检查单个冷阶段及其与特定配方的相互作用.
根据每个冷阶段量身定制工艺参数对于改善冷保存结果至关重要.

关键词:

结冷保存是一种冷保存.结解的方法尤卡特的T细胞是Jurkat T细胞.我(2) 没有SO-Free.旋转结是因为旋转结.

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