快速的无支架细胞板的形成及其作为复杂的3D组织结构的构建块的模式
Maedeh Khodamoradi1, Seyedaydin Jalali1,2, Maria Fernanda Hutter1,3,4
1School of Biomedical Engineering, McMaster University, Hamilton, ON, Canada. selvaga@mcmaster.ca.
Lab on a chip
|December 10, 2025
概括
研究人员开发了一种快速,无脚手架的方法,使用聚甲基 (PDMS) 模具创建3D细胞板. 这种自组装技术增强了用于组织工程应用的细胞-细胞粘附.
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) 细胞培养比二维培养更好地模仿本地组织微环境.
- 无脚手架技术可以实现高密度,有组织的组织结构,细胞板非常适合再生医学.
- 现有的细胞板制造方法往往会损伤细胞或需要专门的,昂贵的设备.
研究的目的:
- 开发一种基于自组装的快速方法,在不改变培养条件或使用外部刺激的情况下制造3D细胞片.
- 为了证明这种新技术在各种组织工程应用中的多功能性和有效性.
主要方法:
- 使用未经改性聚甲基 (PDMS) 模具作为细胞播种的培养容器.
- 在临界细胞密度的指示播种触发了附着细胞在6小时内自发自组合成平面3D细胞板的自发自组.
- 采用定量逆转录聚合酶连锁反应 (qRT-PCR) 来分析E-cadherin表达和细胞外基质 (ECM) 沉积的组织学分析.
主要成果:
- 通过自发的自我组装实现了快速 (6小时) 的3D细胞板的形成,由细胞-细胞粘附 (高调 E-cadherin) 驱动.
- 在没有专门的设备的情况下,在创建大面积,图案,多层和共同培养细胞片方面表现出多功能性.
- 经过时间的推移,在纤维细胞细胞板中确认了渐进的ECM产生,包括原沉积,从而保持细胞活力和功能.
结论:
- 提出的自组装技术为制造3D细胞板提供了一个简单,快速和经济的替代方案.
- 这种平台保持了细胞活力和功能,为组织工程,再生医学,疾病建模和培养肉类生产提供了重要的潜力.
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