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相关概念视频

iPS Cell Differentiation01:22

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The ability of induced pluripotent stem cells or iPSCs to differentiate into most body cell types has stimulated repair and regenerative medicine research over the past few decades. iPSC-derived blood cells, hepatocytes, beta islet cells, cardiomyocytes, neurons, and other cell types can repair injuries or regenerate damaged tissue in diseases such as diabetes and neurodegenerative disorders.
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Embryonic and induced pluripotent stem cells are excellent models for disease research because of their ability to self-renew and differentiate into most cell types. Somatic cells from a patient are isolated and reprogrammed into induced pluripotent stem cells or iPSCs. These iPSCs are later differentiated into the desired cell type, which mirrors the diseased cell of the patient. In this way, disease models have been created for investigating diseases such as Down syndrome, type I diabetes,...
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Stem cells are undifferentiated cells that divide and produce different types of cells. Ordinarily, cells that have differentiated into a specific cell type are post-mitotic—that is, they no longer divide. However, scientists have found a way to reprogram these mature cells so that they “de-differentiate” and return to an unspecialized, proliferative state. These cells are also pluripotent like embryonic stem cells—able to produce all cell types—and are therefore...
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Updated: Jun 5, 2025

Scalable 96-well Plate Based iPSC Culture and Production Using a Robotic Liquid Handling System
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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.

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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.

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相关实验视频

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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.