芯片上的血管架构:设计复杂的血管,以复制生理和异质的血液动力学和内皮功能
Jennifer D Lee1, Ankit Kumar1, Tanmay Mathur1
1Department of Biomedical Engineering, College of Engineering, Texas A&M University, 101 Bizzell St, College Station, TX 77843, USA. a.jain@tamu.edu.
Lab on a chip
|March 11, 2025
概括
研究人员开发了一种新的方法,可以在微生理系统 (血管芯片) 中设计各种血管形状. 这一突破使得我们能够更好地研究血管疾病和内皮细胞反应在复杂的,不统一的血管结构.
科学领域:
- 生物医学工程 生物医学工程
- 血管生物学 血管生物学
- 微生理系统 微生理系统
背景情况:
- 人体循环表现出不同的血管形状,影响血液动力学和内皮细胞功能.
- 目前的微生理系统 (容器芯片) 仅限于同质的管状结构,限制了复杂的血管状况的研究.
- 了解血管架构在血管病理生理学中的作用对于疾病研究至关重要.
研究的目的:
- 在微生理系统中设计非统一的,活的3D血管光的统一方法.
- 创建模仿体内各种血管架构的血管芯片,包括狭窄,分叉和动脉瘤.
- 为了研究这些工程血管模型中改变的血液动力学和内皮细胞反应的影响.
主要方法:
- 引力流明模式 (GLP) 用于在原基质内制造3D血管流明.
- 活体内皮细胞被培养为工程血管光线.
- 使用输血来评估流动动力学和内皮细胞形态,以应对不同的血管结构.
主要成果:
- GLP方法成功地产生了不均的血管光线,准确地复制了直径血管,狭窄,分叉,动脉瘤和曲血管.
- perfusion 实验揭示了明显的血液动力学和相应的内皮细胞形态变化,以响应工程架构.
- 这些血管芯片密切模仿体内结构变异和内皮细胞反应.
结论:
- 引力流明模式方法为工程复杂的血管架构在体外提供了一种多功能方法.
- 这些先进的血管芯片是研究血管疾病的宝贵工具,其中建筑是关键因素.
- 这项技术有助于研究血管并发症,如动脉瘤,动脉样硬化和动脉曲综合征.
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