癌症诱导的血液动力学变化对单个白细胞动态的影响在使用物体在流体 (OIF) 模块的静脉中
Tahereh Zarei1, M Soltani2, Cyrus Aghanajafi1
1Department of Mechanical Engineering, K. N. Toosi University of Technology, Tehran, Iran.
Computers in biology and medicine
|February 19, 2026
概括
癌症改变白细胞机制,增强粘附性,但减少流动阻塞. 这种双重效应影响白细胞壁相互作用和血流动力学,为疾病进展提供了洞察力.
科学领域:
- 生物物理学的生物物理.
- 计算生物学 计算生物学
- 血液动力学 血液动力学
背景情况:
- 癌症会导致血液风湿学和细胞力学发生显著变化.
- 白细胞 (白细胞) 的行为在血管内的炎症和疾病过程中至关重要.
- 了解癌症中白细胞变异的动态对于疾病进展和治疗策略至关重要.
研究的目的:
- 研究癌症诱导的改变对白细胞机械性质及其在 venules 内的动态的影响.
- 在模拟的血液流动条件下,将癌症受影响的白细胞与健康白细胞的行为进行比较.
- 分析这些生物力学变化对白细胞粘附和局部血液动力学的影响.
主要方法:
- 使用ESPResSo包与流体中的物体 (OIF) 模块进行计算模拟.
- 模拟的细胞力学使用弹网络膜和流体结构相互作用通过力合.
- 解决了Navier-Stokes在低雷诺兹数下层流的方程,并结合了癌症患者的基于文献的血液参数.
主要成果:
- 癌症引起的白细胞软化增加了它们的可变性和粘附稳定性,导致长时间的壁附着.
- 受癌症影响的白细胞由于更大的变形和减少的横流高度,导致水力动力阻塞较少.
- 这些变化导致峰值流速的减少较小,与健康白细胞相比,墙壁剪切速率的变化较轻.
结论:
- 癌症驱动的生物机械变化对白细胞壁相互作用有双重影响:促进粘附,同时减少局部血液动力学干扰.
- 这项研究表明,OIF模拟对于研究白细胞动力学和癌症影响血液流动中的血液动力学具有实用性.
- 这些发现突出了细胞机制,血液流动和微循环中的疾病状态之间的复杂相互作用.
相关概念视频
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Chemical Signaling in Autoregulation
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01:27Applications of Integration to Find Blood Flow
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