纳米纤维膜促进和维持血管内皮屏障功能
Jiafeng Liu1, Qiang Wei1,2, Kun Man1
1Department of Biomedical Engineering, University of North Texas, Denton, Texas 76207, United States.
ACS applied bio materials
|October 20, 2023
概括
新的纳米纤维膜在体外改善了内皮屏障功能,模仿了自然血管系统. 这一进步为研究血管健康和疾病提供了更好的模型.
科学领域:
- 生物医学工程 生物医学工程
- 细胞生物学 细胞生物学
- 材料科学 材料科学 材料科学
背景情况:
- 血管内皮对于生理过程至关重要,作为血液和组织之间的屏障.
- 维持内皮质屏障功能对于准确的体外血管模型至关重要.
- 目前的模型往往无法复制体内看到的持续屏障完整性.
研究的目的:
- 为了研究纳米纤维膜孔径大小对内皮屏障功能的影响.
- 使用电纳米纤维膜开发改进的体外血管模型.
- 阐明YES相关蛋白 (YAP) 在内皮屏障维持中的作用.
主要方法:
- 制造2D对齐的纳米纤维膜与不同的孔径大小使用电.
- 使用这些膜评估内皮膜屏障功能和透性.
- 对"是"相关蛋白 (YAP) 核细胞质局部化在内皮细胞中的分析.
主要成果:
- 纳米纤维膜促进了紧密的血管内皮形成,并保持了超过一个月的持续屏障功能.
- 与通井系统相比,纳米纤维膜显著提高了内皮屏障的完整性.
- 具有特定孔径的对齐纳米纤维膜在保护屏障功能方面优越.
- 纳米纤维膜促进了YAP的表达及其核定位,这对屏障功能至关重要.
结论:
- 电纳米纤维膜为创建生理上相关的体外血管模型提供了卓越的平台.
- 孔径大小和纳米纤维膜的对齐是维持内皮屏障功能的关键因素.
- 这项研究有助于我们更好地理解内皮膜屏障的形成和维护机制.
- 这些发现为改善体外血管研究提供了有价值的策略.
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