细胞密集组织结构的声学全息组合
Minghui Shi1,2, Peer Fischer1,2,3,4, Kai Melde1,2
1Max Planck Institute for Medical Research, Jahnstr. 29, 69120 Heidelberg, Germany.
Biofabrication
|May 6, 2025
概括
声学全息组合 (AHA) 生物制造产生了大型的,细胞密集的组织结构. 这种方法快速形成具有高细胞活力的复杂形状,推进再生医学和组织工程应用.
科学领域:
- 生物技术是生物技术.
- 再生医学是一种再生医学.
- 组织工程是组织工程.
背景情况:
- 目前的生物制造方法难以创建具有受控几何形状的大型,细胞密度高的组织结构.
- 生理学上相关的细胞密度和厘米尺度对于器官水平研究和再生医学至关重要.
研究的目的:
- 介绍一个声学全息组合 (AHA) 生物制造方案,用于创建细胞密度,厘米尺度,任意形状的组织结构.
- 为了证明AHA在组织工程的标准细胞培养实验室内组装细胞的能力.
主要方法:
- 使用了一种紧的,与生物实验室环境兼容的桌面音响全息组装仪器.
- 在凝甲基烯基 (GelMA) 水凝中组装C2C12细胞核成预定义的几何形状.
- 在五天的 perfusion 下培养组装构造.
主要成果:
- 迅速形成的大型,不对称的分支形结构,平均细胞密度为4000万细胞·毫升-1 (局部密度高达260万细胞·毫升-1).
- 在组装的结构中实现了90.5±4.3%的高细胞活力.
- 在标准细胞培养实验室内,证明了单步组装细胞成3D几何形状.
结论:
- 声学全息组装是一种有前途的方法,用于制造细胞密度高,厘米尺度的组织结构,具有可控制的几何形状.
- 通过AHA,可以快速,无接触,无标签地组装生物细胞,克服当前生物制造技术的局限性.
- 这项技术可以促进开发具有与原生组织相似的结构和功能特征的工程组织.
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