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Cell-matrix's Response to Mechanical Forces

Cell-matrix's Response to Mechanical Forces

In animal cells, the extracellular matrix allows cells within tissues to withstand external stresses and transmits signals from the outside of the cell to the inside. The extracellular matrix is extensive, and its composition varies between different types of tissues. For example, the reticular fibers and ground substance make up the ECM in loose connective tissue, while collagen and bone minerals make up the ECM of bone tissue.
Anchoring junctions mechanically attach a cell to the...

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Updated: Jun 26, 2025

Control of Cell Adhesion using Hydrogel Patterning Techniques for Applications in Traction Force Microscopy

Control of Cell Adhesion using Hydrogel Patterning Techniques for Applications in Traction Force Microscopy

Published on: January 29, 2022

空间限制调节了内皮细胞行为和3D水凝微槽中的引力.

Wenli Jiang¹, Xinghong Yao², Jian Zhong¹

¹Institute of Biomedical Engineering, West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, PR China.

Materials today. Bio

|May 13, 2024

概括

曲的微槽中的空间限制改变了内皮细胞 (EC) 的行为. 整合素,特别是αV-整合素,调解细胞对这种环境的反应,影响细胞亡和细胞引力.

关键词:

细胞亡是细胞的亡.细胞的引力是细胞的拉力.这是一个水凝微槽.微型纹微型纹血管内皮细胞血管内皮细胞

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相关实验视频

Last Updated: Jun 26, 2025

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Published on: January 29, 2022

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Published on: October 4, 2019

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科学领域:

生物材料工程生物材料工程
细胞生物学细胞生物学
血管生物学血管生物学

背景情况:

血管内皮细胞 (ECs) 由于血管曲而经历不同的机械环境.
整合素对于细胞矩阵相互作用至关重要,它将细胞外矩阵与细胞骨联系起来,影响细胞行为.

研究的目的:

研究空间封闭和微曲线对人类静脉EC (HUVEC) 的影响.
阐明整合素在中介HUVEC对受限,曲线微环境的反应中的作用.

主要方法:

制造3D水凝微槽,可控制墙壁曲率,使用无面膜光刻技术.
在这些微中培养HUVEC,以评估细胞行为,定向,细胞亡和整合素表达.
使用西林基提德抑制αV-整合素,并评估其对细胞反应的影响.

主要成果:

曲微槽中的HUVEC显示尺寸缩小,方向增强和亡增加.
微槽曲率显著影响了细胞定向和细胞亡率.
在微槽内的HUVEC中观察到升高的整合素表达.
αV-整合素的抑制降低了细胞亡和细胞引力,而不会影响增殖.
集成因介导的细胞引力与空间限制相关.

结论:

在水凝微槽中的空间限制显著影响了EC行为,包括亡和定向.
整合素,特别是αV-整合素,在调解EC对机械束的反应方面发挥着至关重要的作用.
向整合素可能为调节血管疾病中的EC行为提供治疗策略.