通过微纹和循环拉伸技术诱导的纤维细胞的预调整加速了伤口愈合的速度
Ryota Toyohara1,2, Yanan Lan3, Yu Chen3
1Faculty of Engineering, Hokkaido University, Hokkaido, Japan.
Bio-medical materials and engineering
|February 20, 2025
概括
纤维细胞对齐显著提高了伤口关闭率. 预先对齐的纤维细胞,特别是那些具有发达的活性纤维的纤维细胞,迁移得更快,加速愈合过程.
科学领域:
- 细胞生物学 细胞生物学
- 生物医学工程 生物医学工程
- 伤口愈合研究研究研究
背景情况:
- 伤口愈合涉及复杂的细胞过程,包括纤维细胞迁移和收缩.
- 在成熟的痕组织中观察到纤维细胞对齐,突出显示了它们在伤口修复中的作用.
- 在伤口愈合过程中控制纤维细胞行为的精确机制需要进一步阐明.
研究的目的:
- 为了研究预先对齐的纤维细胞对细胞迁移速度的影响.
- 评估细胞对齐如何影响伤口关闭的速度.
主要方法:
- 纤维细胞对齐通过用纤维素和循环拉伸实现的聚甲基 (PDMS) 微冲压.
- 通过物理伤创建伤口.
- 测量伤口关闭率以量化愈合进展.
主要成果:
- 与伤口垂直定向的预排列纤维细胞与非排列对照组相比,显著增加了迁移率.
- 纤维细胞通过循环拉伸表现出增强的行为丝发育,迁移的速度比那些较不发达结构的纤维细胞更快.
结论:
- 优化纤维细胞对齐可以加速伤口的关闭.
- 细胞活性丝结构的发展对于增强纤维细胞迁移和伤口愈合速度至关重要.
相关概念视频
01:09Introduction to Fibroblasts
3.0K
Rudolph Virchow discovered spindle-shaped cells called fibroblasts in 1858. Inactive fibroblasts, called fibrocytes, become activated by various stimuli, such as growth factors and inflammatory cytokines. Activated fibroblasts play a crucial role in wound healing, inflammation, formation of new blood vessels, and cancer progression. Uncontrolled activation of fibroblasts results in fibrosis, the excess deposition of fibrous tissue, which can lead to scarring and affect normal organs. This...
3.0K
01:28Phases of Wound Repair
5.8K
Following injury, the integrity of the injured tissues must be reestablished. For example, in skin tissue, wound repair involves coordination among resident skin cells, blood mononuclear cells, extracellular matrix, growth factors, and cytokines to complete the healing cascade.
Formation of Blood Clot
In case of deep injuries, trauma to blood vessels results in blood loss. In the meantime, phospholipids released from the ruptured endothelial cellular membrane are converted into arachidonic...
Formation of Blood Clot
In case of deep injuries, trauma to blood vessels results in blood loss. In the meantime, phospholipids released from the ruptured endothelial cellular membrane are converted into arachidonic...
5.8K