人类巨核细胞细胞系中细胞周期周期的表达暴露于模拟的微重力
Alisa A Sokolovskaya1, Ekaterina A Sergeeva1, Arkadiy A Metelkin1
1Department of Molecular and Cellular Pathophysiology, Institute of General Pathology and Pathophysiology, Baltiyskaya Str. 8, 125315 Moscow, Russia.
International journal of molecular sciences
|June 27, 2024
概括
模拟的微重力改变了人类大核细胞细胞循环调节器. 96小时后循环蛋白表达的关键变化表明细胞循环抑制和压力,影响空间中的增殖细胞.
科学领域:
- 细胞生物学 细胞生物学
- 太空医学 太空医学
- 引力生物学 引力生物学
背景情况:
- 引力压力影响细胞生理学.
- 以前的研究表明,模拟的微重力会影响MEG-01细胞增殖,细胞亡,形态和表面标记物.
研究的目的:
- 在模拟微重力条件下的MEG-01细胞中研究细胞周期环林表达.
- 确定微重力诱导的细胞周期变化的时间和性质.
主要方法:
- 模拟MEG-01细胞在微重力中暴露24小时,72小时,96小时和168小时.
- 流细胞测量,西部斑点,PCR分析和STED显微镜以评估环林表达.
- 微重力 (RPM) 和静态控制条件之间的比较.
主要成果:
- 在模拟微重力条件下96小时后观察到循环素表达的显著变化.
- 环素A和B的表达在72小时达到峰值,减少了96小时.
- 增加的环素A和峰值的环素D表明细胞周期在G2阶段受到抑制.
结论:
- 模拟的微重力破坏了MEG-01细胞中的细胞循环.
- 细胞循环调节者的改变表达与微重力诱导的压力有关.
- 这些发现与了解太空环境中的人类细胞增殖有关.
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