纤维细胞介导内皮细胞对新开发的3D流层工程模型中的血管性线索的反应
Alessandra Dellaquila1, Chloé Dujardin1, Chau Le Bao1
1Université Paris Cité, Université Sorbonne Paris Nord, Laboratory for Vascular Translational Science, INSERM U1148, X. Bichat Hospital, Paris 75018, France.
Biomaterials advances
|October 1, 2023
概括
这项研究提出了用于药物测试的3D血管化流体模型,显示了增强的细胞活力和功能. 纤维细胞保护血管系统,为研究癌症等疾病中的血管生成提供了一个有前途的平台.
科学领域:
- 生物材料科学 生物材料科学
- 组织工程是组织工程.
- 细胞生物学 细胞生物学
背景情况:
- 三维 (3D) 工程组织模型对于研究人类组织相互作用和在生理和病理状态下重塑至关重要.
- 当前的模型往往缺乏复杂性,无法完全复制体内条件,限制了它们在药物测试和疾病建模中的应用.
研究的目的:
- 开发和描述一个用于体外药物测试的3D血管化流体模型.
- 为了研究体纤维细胞在血管网络完整性和功能中的作用.
- 探索这个模型在研究血管新生驱动疾病和治疗方面的潜力.
主要方法:
- 基于pullulan/dextran的多孔支架与微通道的制造,用于共培养纤维细胞和内皮细胞.
- 使用光学清除以通过光片和共聚焦显微镜进行深度成像.
- 在各种条件下评估细胞活力,新陈代谢,细胞因子表达和内皮标记体表达.
主要成果:
- 与单一培养的血管模型相比,3D血管化流体模型显示出更高的细胞活力,新陈代谢和细胞因子表达.
- 纤维细胞对血管系统产生保护作用,减少细胞毒性并恢复氧化水平.
- 在纤维细胞的存在下观察到内皮标记物 (CD31,vWF,VEGF) 的持续表达.
结论:
- 开发的3D工程组织模型作为一个强大的体外平台,用于研究肌重塑和血管新生.
- 该模型有助于研究血管新生驱动疾病的治疗策略,包括转移性癌症,视网膜病变和缺血.
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