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来自iPSC的介质层层细胞刺激新血管化的程度低于它们的初级对应细胞

Julian Gonzalez-Rubio¹, Kira Zeevaert², Eva Miriam Buhl³

¹Department of Biohybrid & Medical Textiles (BioTex), AME - Institute of Applied Medical Engineering, Helmholtz Institute, RWTH Aachen University, 52074 Aachen, Germany.

|December 8, 2024

概括

与骨髓MSC相比,诱导的多能干细胞衍生的介质干细胞 (iMSCs) 显示出较少的亲血管效应. 这表明,对于某些细胞疗法来说,iMSCs在促进新血管形成方面可能不那么有效.

科学领域:

细胞生物学细胞生物学
再生医学是一种再生医学.
生物技术是生物技术.

背景情况:

介酶体 stromal 细胞 (MSC) 对于细胞疗法至关重要,但由于患者的年龄和细胞数量,自身治疗面临限制.
将MSC重编程成诱导多能干细胞 (iPSC),并重新分化它们,为细胞扩张和复原提供了一种方法.
这种重新编程对MSCs的益血管性潜力的影响仍然不清楚.

研究的目的:

研究和比较骨髓衍生MSCs (BM-MSCs) 和iPSC衍生MSCs (iMSCs) 的亲血管性能力.
用微流体平台评估MSC重编程对内皮细胞血管化的影响.

主要方法:

使用微流体器官芯片平台进行血管化试验.
在纤维素水凝中与BM-MSCs或iMSCs共同培养的内皮细胞10天.
采用光显微镜,大量RNA测序和传输电子显微镜进行分析.

主要成果:

BM-MSCs显著促进了长,相互连接的内皮血管的形成.
iMSCs显示出对新血管生成的最小刺激.
RNA测序揭示了iMSCs中益血管性因子的减少表达,电子显微镜显示与BM-MSCs相比,与新形成的血管的亲密联系较小.

结论:

与BM-MSC相比,iMSCs表现出较低的亲血管性活性.
这种降低的血管化潜力可能会限制iMSCs在需要强大的新血管化治疗中的应用.
需要进一步的研究,以了解对治疗具有较差血管化特征的疾病的影响.

关键词:

血管新生的产生.细胞疗法是一种细胞疗法.在体外模型模型.诱导的多能干细胞干细胞器官在芯片上的器官血管生成是一种血管生成.

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