在hiPSC衍生的多组织有机体中,氨酸软骨的一致的自我组织出现
Huzefa I Husain1,2, Manci Li3,4, Juan E Abrahante5
1Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN, USA.
Stem cells (Dayton, Ohio)
|June 27, 2025
概括
本研究提出了一种简化,无料的方法,用于在多组织器官 (MTO) 中使用人类诱导的多能干细胞 (hiPSC) 生成质软骨. 这种新协议确保了对潜在的治疗应用的一致的冠状细胞生产.
科学领域:
- 干细胞生物学 干细胞生物学
- 组织工程是组织工程.
- 发育生物学是发展生物学.
背景情况:
- 目前使用的人类诱导多能干细胞 (hiPSCs) 进行体外氨酸软骨生产的方法很复杂,使用未定义的介质,并且存在不稳定性和可变性.
- 需要一种更简单,更一致,更可扩展的方法来产生功能性冠状细胞用于治疗.
研究的目的:
- 开发和描述一种简单的,无异种和无料的协议,用于在多组织器官 (MTO) 中使用hiPSC产生质软骨.
- 调查基因调控网络和分子通路的基因调控网络,这些网络和分子通路控制hiPSC衍生的MTOs中的chondrogenesis.
- 评估在不同MTO批次中生成的软骨的一致性和chondrogenic潜力.
主要方法:
- 来自hiPSC的多组织有机体 (MTO) 的生成.
- 用RNA测序和生物信息学分析来研究基因分化过程中的基因调控网络.
- 组织学和免疫组织化学分析以表征分化的组织.
- 单细胞RNA测序以确认细胞系和批次的一致性.
主要成果:
- 通过使用hiPSC-MTOs建立了一个简单的,无xeno和无料的协议,用于使用hiPSC-MTOs生成氨酸软骨.
- 基因表达分析显示,MTO冠状细胞与胎儿下肢冠状细胞有很强的相关性.
- 在MTO表型过渡中研究了BMP和神经FGF通路之间的相互作用.
- 单细胞RNA测序证实了高比例的共细胞和批对批的统一性.
结论:
- 多组织有机体 (MTO) 系统提供了一种一致且易于使用的方法,用于从hiPSCs产生质软骨.
- 这项研究阐明了关键的分子通路,包括BMP和FGF信号传输,涉及基于hiPSC的chondrogenesis.
- 该协议为未来的治疗应用和研究提供了一个有前途的功能性冠状细胞来源.
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