在微切割瘤中微血管的微流体调节
Tran N H Nguyen1, Lisa F Horowitz1, Brandon Nguyen1
1Department of Bioengineering, University of Washington, Seattle, 98105, United States.
bioRxiv : the preprint server for biology
|October 10, 2024
概括
研究人员开发了一种微流体平台,用于 perfuse 微切割的瘤,改善瘤微血管的保存. 这一进步有助于为药物开发和临床应用创造更好的癌症模型.
科学领域:
- 在瘤学瘤学.
- 生物医学工程 生物医学工程
- 血管生物学 血管生物学
背景情况:
- 瘤微环境 (TME) 的微血管结构对于癌症信号传递至关重要,但它的活体模型具有挑战性.
- 工程组织经常使用非本地成分,可能会影响药物疗效研究.
- 微切割的瘤保留了TME,但很难 perfuse.
研究的目的:
- 开发一个微流体平台,用于 perfusing 微切割的瘤微血管.
- 评估微流体 perfusion 对微血管结构和功能的影响.
- 为了研究氧化通路药物对透瘤内内皮质细胞的影响.
主要方法:
- 开发一种新的微流体平台,用于 perfusing 微切割的瘤.
- 微流体 perfusion 与扩散运输在维护微血管系统中的比较.
- 微血管结构和CD31表达的3D成像分析.
- 在剪切应力下探索氧化通路药物对内皮细胞的影响.
主要成果:
- 与扩散运输相比,微流体 perfusion 导致了更大,更长的微血管结构.
- 在微流体 perfused 组织中观察到 CD31 (内皮细胞标记物) 的增强表达.
- 氧化通路药物对对剪切应力敏感的内皮细胞表现出影响.
结论:
- 控制的微流体输液对于在活体模型中保持瘤微血管结构至关重要.
- 这个平台可以在癌症模型中实现更好的仿生学,桥梁研究和临床应用.
- 研究结果提供了通过血管调节优化癌症治疗的见解.
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