可扩展的基于生物反应器的悬浮方法,从健康的捐赠者衍生的iPSCs产生干细胞衍生的岛屿
Kevin Verhoeff1,2, Nerea Cuesta-Gomez1,2,3, Jasmine Maghera1,4
1Alberta Diabetes Institute, University of Alberta, Edmonton, AB, Canada.
Transplantation
|December 10, 2024
概括
使用垂直轮生物反应器实现了诱导多能干细胞 (iPSC) 到小岛细胞的可扩展分化. 这种方法提高了细胞产量并降低了成本,为iPSC小岛疗法的临床应用铺平了道路.
科学领域:
- 干细胞生物学 干细胞生物学
- 再生医学是一种再生医学.
- 生物技术是生物技术.
背景情况:
- 诱导多能干细胞 (iPSCs) 有望产生患者特异的iPSC衍生小岛.
- 目前的局限性包括可扩展性和确保治疗用途产品安全性的挑战.
研究的目的:
- 通过基于生物反应器的分化协议为iPSC岛屿生成的细胞的特征.
- 评估差异化过程的可扩展性和成本效益.
主要方法:
- 使用流细胞计,qPCR,补丁紧和功能测试进行阶段性表征.
- 在体内对分化细胞的功能和免疫组织化学评估.
- 在半平面和悬浮生物反应器系统中评估细胞产量和成本效益.
主要成果:
- 该协议成功生成了PDX1+/NKX6.1+胰腺原始细胞和C-+/NKX6.1+ iPSC岛屿细胞.
- 虽然观察到成熟的小岛状细胞,但仍存在一些非目标细胞群 (导管细胞,肠染色素,肠细胞).
- 与半平面方法相比,垂直轮生物反应器的悬浮差异化显著增加了细胞产量 (105.0 × 10^6 细胞),并将成本降低了 88.8%.
结论:
- 开发了一种可扩展的基于悬浮的方法,使用垂直轮生物反应器用于iPSC小岛区分.
- 彻底的产品表征使得未来的优化能够消除非目标细胞.
- 基于生物反应器的悬浮差异化显示出增强iPSC小岛疗法的可扩展性和临床翻译的潜力.
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