生物物理建模识别了一种最佳的杂交氨基体-介质细胞表型,用于最大的T细胞迁移速度
Roberto Alonso-Matilla1,2,3, Paolo P Provenzano1,2,3,4,5,6, David J Odde1,2,3,4
1Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, USA.
bioRxiv : the preprint server for biology
|July 19, 2024
概括
了解快速细胞迁移对于有效的癌症疗法至关重要. 这项研究模拟了细胞运动,揭示了结合血栓和粘附的混合方法在复杂环境中优化了抗瘤T细胞的速度.
科学领域:
- 细胞力学 细胞力学
- 生物物理学的生物物理.
- 癌症免疫疗法癌症免疫疗法
背景情况:
- 快速的细胞迁移对于抗瘤T细胞以向和消除癌细胞至关重要.
- 目前对驱动快速细胞运动的机制的理解仍然不完整.
- 描述细胞迁移机制是提高癌症治疗疗效的关键.
研究的目的:
- 为了研究细胞迁移速度的上限.
- 开发一种新的杂交随机平均场模型,用于基于bleb的细胞运动.
- 为了确定快速细胞迁移的最佳条件.
主要方法:
- 开发了一种混合的随机平均场模型,用于基于bleb的细胞运动.
- 检查了无粘附的基于血栓的迁移 (细胞游泳).
- 分析了不同介质中的皮质收缩振荡的作用.
主要成果:
- 细胞在没有依附力 (细胞游泳) 的情况下迁移效率低下.
- 皮层收缩振荡是细胞在粘性介质中游泳所必需的.
- 一种基于血栓和粘附的混合机制可以实现快速的细胞运动.
结论:
- 该模型阐明了快速单细胞迁移的动量保护机制.
- 在机械复杂的环境中,确定了优化细胞速度的因素.
- 为设计T细胞疗法提供了设计标准,以提高迁移效率.
相关概念视频
Actin Polymerization and Cell Motility
5.2K
Actin is a family of globular proteins that are highly abundant in eukaryotic cells. It makes up approximately 1-5% of total cell protein concentration. Actin monomers polymerize to form a complex network of polarized filaments, the actin cytoskeleton, that plays a crucial role in many cellular processes, including cell motility, division, endocytosis, and metastasis of cancer cells.
Actin cytoskeleton dynamics can produce pushing, pulling, and resistance forces that help the cell to migrate....
Actin cytoskeleton dynamics can produce pushing, pulling, and resistance forces that help the cell to migrate....
5.2K
Cytoskeletal Coordination in Cell Migration
4.7K
A migrating cell changes its shape during the cyclic events of attachment and detachment from the substratum and repositions the cell organelles correspondingly. These complex events are orchestrated by the dynamic cytoskeletal network comprising actin filaments, intermediate filaments, and microtubules. Cytoskeletal crosstalk — the direct and indirect communication between the different components — is crucial for this coordination. Direct communication involves various linker...
4.7K
Cell Migration
17.0K
Cell migration, the process by which cells move from one location to another, is essential for the proper development and viability of organisms throughout their life. When cells are not able to migrate properly to their ordained locations, various disorders may occur. For example, disruption in cell migration causes chronic inflammatory diseases such as arthritis.
17.0K
Role of Myosin in Cell Migration
2.3K
Myosins are multimeric motor proteins involved in various cellular processes such as migration, adhesion, and proliferation. Myosin II is the most common type in animal cells, which binds and cross-links actin filaments.
Myosin II is a hexamer comprising two heavy chains with globular heads and coiled-coil tails, two regulatory light chains, and two essential light chains. The ATPase sites on the myosin heads hydrolyze ATP, and the released phosphate generates the force for contraction....
Myosin II is a hexamer comprising two heavy chains with globular heads and coiled-coil tails, two regulatory light chains, and two essential light chains. The ATPase sites on the myosin heads hydrolyze ATP, and the released phosphate generates the force for contraction....
2.3K


