流体和泡流脱离附着的癌细胞,在随机定位机上形成球体
José Luis Cortés-Sánchez1, Daniela Melnik1,2, Viviann Sandt1
1Department of Microgravity and Translational Regenerative Medicine, Otto-von-Guericke University, 39106 Magdeburg, Germany.
Cells
|November 24, 2023
概括
随机定位机 (RPM) 通过诱导细胞通过流体流和气泡脱离来模拟微重力,从而导致癌细胞培养中的球形形成. 这个过程模仿了太空飞行对地面研究的影响.
科学领域:
- 生物技术是生物技术.
- 细胞生物学 细胞生物学
- 太空科学 太空科学
背景情况:
- 基于地面的设施对于模拟太空和微重力实验的微重力条件至关重要.
- 随机定位机 (RPM) 是用于模拟地球微重力的旋转生物反应器.
- 癌细胞培养中的球形形成是真实和模拟微重力的已知影响.
研究的目的:
- 在RPM条件下调查FTC-133甲状腺癌细胞脱离和球状形状形成的原因.
- 为了确定参与RPM诱导球形状形成的机械信号通路的分子激活.
- 了解RPM在细胞培养上模拟微重力效应的机制.
主要方法:
- 将RPM运动分为静态和动态方向,以分析细胞行为.
- 使用FTC-133甲状腺癌细胞作为模型系统.
- 进行与定义的流体流动范式进行比较剪切应力实验.
主要成果:
- 由RPM诱导的球形形成是一个两步的过程:细胞脱离,然后在悬浮中聚合.
- 细胞脱离是由培养瓶内的旋转,流体流动和气泡驱动的.
- 对RPM暴露的转录反应与定义的剪切应力诱导的反应相似.
结论:
- RPM模拟微重力,通过随机化重力向量和诱导剪切力来模拟微重力,特别是悬浮细胞.
- 通过结合模拟的微重力和生理剪切力,RPM为体外癌症研究提供了宝贵的工具.
- 了解这些机制有助于准备和解释太空飞行实验.
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