通过微流体的动态压缩和放松,将乳腺癌球体的转移潜力和粘弹性特性联系起来
Margherita Tavasso1, Ankur D Bordoloi1, Elsa Tanré2
1Department of Chemical Engineering, Delft University of Technology, Delft, 2629 HZ, The Netherlands.
Advanced healthcare materials
|October 14, 2024
概括
良性乳腺癌球体表现出比恶性更高的弹性和粘度. 恶性球状体表现出与细胞骨组织和细胞-细胞粘附相关的明显放松行为.
科学领域:
- 生物物理学的生物物理.
- 癌症生物学 癌症生物学
- 材料科学 材料科学 材料科学
背景情况:
- 瘤生长和入侵与粘弹性变化相关.
- 物理性质和癌症恶性之间的联系尚未得到充分理解.
- 缺乏对瘤组织粘性弹性的全面研究.
研究的目的:
- 为了研究乳腺癌球体的粘弹性特性.
- 为了将这些特性与转移潜力相关联.
- 了解癌症恶性瘤的物理基础.
主要方法:
- 利用3D乳腺癌球体作为体外瘤模型.
- 在微流体装置中应用受控动态压缩.
- 分析了使用修改的麦克斯韦模型和双指数拟合的变形放松.
主要成果:
- 良性球体 (MCF-10A) 的弹性模量和粘度高于恶性球体 (MCF-7,MDA-MB-231).
- 恶性球状体表现出类似的快速反弹,长期放松和残留变形.
- 在恶性球状体中观察到形态和细胞间运动的差异,与细胞骨组织和细胞-细胞粘附有关.
结论:
- 良性和恶性乳腺癌球体之间,粘弹性特性显著不同.
- 恶性球状体表现出独特的机械放松行为.
- 细胞骨组织和细胞-细胞粘附影响恶性球体的机械特性和行为.
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