矩阵封闭调节3D球形分类和爆发式集体迁移.
Grace Cai1, Xinzhi Li2, Shan-Shan Lin3
1Applied Physics Program, University of Michigan, Ann Arbor, MI, USA.
Acta biomaterialia
|March 15, 2024
概括
矩阵封闭和细胞粘附控制瘤细胞分类和入侵. 高限制触发分类,而减少限制促进集体入侵,影响癌细胞迁移.
科学领域:
- 生物物理学的生物物理.
- 癌症生物学 癌症生物学
- 细胞力学 细胞力学
背景情况:
- 瘤微环境机制影响癌细胞迁移.
- 在异质瘤中细胞间相互作用的了解很少.
- 控制细胞分类和瘤入侵的物理力量需要进一步研究.
研究的目的:
- 探索矩阵限制如何影响3D球形中的细胞迁移.
- 了解物理限制和细胞-细胞粘附在瘤细胞分类和入侵中的作用.
- 研究矩阵封闭,细胞分类和迁移动态之间的关系.
主要方法:
- 在3D球形中对调矩阵进行限制,以模仿瘤微环境的变化.
- 使用计算自行驱动的沃罗诺伊模型.
- 研究不同硬度的原-酸盐水凝内共同培养球体中的瘤细胞行为.
主要成果:
- 高矩阵限制诱导细胞在3D球形中进行分类.
- 减少矩阵封闭促进了分类后的集体细胞入侵.
- 没有先前分类的球体不会表现出类似爆发的迁移,无论被限制.
- 球体分类和入侵取决于细胞产生的力量和矩阵阻力之间的平衡.
结论:
- 矩阵封闭和细胞间粘附是3D球形动态的关键调节者.
- 研究结果提供了关于细胞分类和迁移机制的洞察力,主要瘤和转移.
- 该研究建立了一个模型,其中矩阵封闭以依赖粘附的方式调节球体排序和解锁.
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