细胞硬度介导的三维组织中的机械化学波
Pengyu Yu1,2, Rui Zhang3, Bo Li1,2
1Tsinghua University, Institute of Biomechanics and Medical Engineering, Applied Mechanics Laboratory, Department of Engineering Mechanics, Beijing 100084, China.
Physical review letters
|September 22, 2025
概括
细胞刚度的变化驱动组织机械化学波. 增加的刚性增强了波浪同步和强度,揭示了机械.
科学领域:
- 生物物理学的生物物理.
- 细胞生物学 细胞生物学
- 组织工程是组织工程.
背景情况:
- 细胞机械特性,特别是性,在组织发育和疾病中至关重要.
- 了解这些机械变化如何影响细胞行为和组织动态是必不可少的.
研究的目的:
- 研究细胞刚度及其空间变异在3D组织中产生机械化学波的作用.
- 探索机械反,特别是来自细胞外信号调节激酶 (ERK),对组织动态的影响.
主要方法:
- 开发一个三维 (3D) 活跃顶点模型.
- 将来自细胞外信号调节激酶 (ERK) 的机械反纳入.
- 组织行为的理论分析和计算模拟.
主要成果:
- 机械化学的不稳定性导致由细胞硬度和异质性介导的丰富的细胞振荡.
- 细胞硬度增加促进了远程力传输和集体波的同步.
- 波表现出对细胞大小和度的变化具有强度,在硬的内含和壁周围传播.
结论:
- 细胞度在3D组织中的自组织机械化学动力学中发挥着多方面的作用.
- 开发的模型成功地复制了在多细胞球体中ERK边缘波的实验观测.
- 机械是多细胞系统中复杂动态行为的基本驱动力.
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