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随机定位对增殖单细胞的功能和可塑性的临时影响

Shannon Marchal¹, Anna Dittrich², Nadine Becker¹

¹Department of Microgravity and Translational Regenerative Medicine, Otto-von-Guericke University, 39106, Magdeburg, Germany.

Scientific reports

|November 10, 2025

概括

随机定位机 (RPM) 根据培养时间不同,会对人类单细胞细胞产生不同的影响. 短期RPM培养增强单细胞功能,而长期培养会损害它,影响引力生物学研究.

科学领域:

引力生物学引力生物学
太空医学太空医学
细胞生物学细胞生物学

背景情况:

随机定位机 (RPM) 模拟微重力和改变的机械力.
动态悬浮培养在RPM上提供剪切应力,对于恒温和营养混合至关重要.
生理学上相关的细胞培养条件对于将发现转化为太空和地球系统至关重要.

研究的目的:

研究RPM培养对人类单细胞细胞 (THP-1和PBMCs) 的影响.
为了评估细胞形态,可塑性和功能在模拟微重力条件下的变化.
了解不同培养时间对单细胞行为的影响.

主要方法:

在RPM上培养永久化的THP-1细胞和初级PBMC,长达7天.
评估细胞形态,巨分化的可塑性和细胞活动.
评估对脂聚糖 (LPS) 刺激的反应能力.

主要成果:

增殖的THP-1细胞在早期RPM培养 (1-3天) 中表现出增强的功能 (LPS反应,分化,细胞化).
晚期RPM培养 (4-7天) 损害了THP-1细胞功能,表明对成熟的抑制作用.
非增殖PBMCs没有表现出显著的表型变化,可能是由于静止.

结论:

长期的RPM培养可能会抑制人类单细胞的成熟和功能.
短期RPM培养可以增强单细胞的反应能力和分化.
这些发现对于引力研究和理解由机械力影响的疾病机制至关重要.

关键词:

细胞循环的细胞周期动态细胞培养方式巨细胞是一个巨细胞.机械敏感性机械敏感性微重力是一种微重力.单细胞 (Monocytes) 是一种单细胞.

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