3D生物打印的人类iPSC衍生神经原生细胞作为研究神经性利基研究的新平台
APL bioengineering
|September 12, 2025
概括
这项研究介绍了一种使用人类神经原生细胞 (hNPC) 模拟人类神经发育的4D生物打印模型. 3D生物打印的神经基因位支持细胞自我组织,增殖,分化和迁移超过110天.
科学领域:
- 神经科学是一个神经科学.
- 干细胞生物学 干细胞生物学
- 生物技术是生物技术.
背景情况:
- 神经发育的动物模型由于特定物种的差异而存在局限性.
- 人类大脑发育的复杂性需要先进的体外模型.
- 3D生物打印为创建复杂的体外模型提供了一个有前途的平台.
研究的目的:
- 开发和描述使用人类神经前细胞 (hNPC) 的人类神经发育3D生物打印模型.
- 评估随着时间的推移,生物打印hNPCs的自我组织,可行性和关键神经基因利基特征.
- 为研究神经发育过程和疾病建模建立一个4D模型.
主要方法:
- 开发了一种用于3D生物打印的GeltrexTM/GelMA水凝混合物.
- 生物打印人类诱导的多能干细胞衍生的NPC (hNPC).
- 在110天内,对细胞活力,自我组织,增殖,分化和迁移的生物打印结构进行了表征.
主要成果:
- 生物打印的hNPC保持活力超过110天,并自组织成神经性.
- 观察到扩散,分化为TUBB3+神经元,并在20天内迁移.
- 构建展示的相互连接的细胞群和轴突通道形成,模仿关键的神经原生利基特征.
结论:
- 4D生物打印模型有效地回顾了人类神经的关键细胞和分子特征.
- 这种动态的3D生物打印支架为神经发育疾病建模提供了合适的平台.
- 该模型对于药物查和促进人类大脑发育的理解非常有价值.
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