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Induced Pluripotent Stem Cells01:13

Induced Pluripotent Stem Cells

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 called induced pluripotent stem...

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相关实验视频

Updated: May 11, 2026

Perfusable Vascular Network with a Tissue Model in a Microfluidic Device
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Perfusable Vascular Network with a Tissue Model in a Microfluidic Device

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一个基于人类多能干细胞的体生成模型,使用微流体学.

Yue Liu1, Yung Su Kim1, Xufeng Xue1

  • 1Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA.

Cell stem cell
|July 9, 2024
PubMed
概括
此摘要是机器生成的。

研究人员使用微流体和人类多能干细胞 (hPSCs) 开发出了一种新的人类体生代模型. 这种先进的模型控制生化和生物力学线索,以更好地了解早期人类发育和somite形成.

关键词:
生物力学 生物力学胚胎模型是一个胚胎模型.人类发展 人类发展人类多能干细胞干细胞在体外建模 in vitro 建模微流体学 在微流体学方面索米托基尼斯 (somitogenesis) 是一种体质的产生.

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A Microfluidics Approach for the Functional Investigation of Signaling Oscillations Governing Somitogenesis
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相关实验视频

Last Updated: May 11, 2026

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Published on: April 4, 2018

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科学领域:

  • 发展生物学 发展生物学
  • 干细胞生物学 干细胞生物学
  • 生物医学工程 生物医学工程

背景情况:

  • 人类多能干细胞 (hPSCs) 能够创建胚胎模型来研究人类胚胎生成.
  • 目前基于hPSC的体质生成模型缺乏对生化梯度和生物机械信号的控制,这阻碍了对复杂相互作用的研究.
  • 生物体内体质生成依赖于复杂的生化和生物机械事件.

研究的目的:

  • 开发一种新型的人体体发生模型,可以控制生化和生物机械信号.
  • 研究生物化学和生物力学因素在索米特形成中的作用.
  • 为研究人类早期发展提供微工程平台.

主要方法:

  • 将hPSC衍生的前体质质膜 (PSM) 组织限制在微型沟中.
  • 将外源微流体形态基因梯度应用于PSM组织.
  • 开发一种机械理论来解释某种尺寸依赖性.
  • 使用微流体模型研究生物力学在somite形成.

主要成果:

  • 微流体系统成功地重复了轴向模式和自发的索米特形成.
  • 一个机械理论解释了索米特大小和PSM尺寸之间的关系.
  • 该模型揭示了细胞和组织生物力学在某种发育中的调节作用.
  • 该系统在定义的生化和生物力学条件下证明了受控的索米特形成.

结论:

  • 一个微工程,基于hPSC的体质生成模型被成功开发出来.
  • 这种模型允许精确控制生物化学和生物力学线索在somite形成期间.
  • 这项研究为控制人类体质发生的生物化学和生物机械机制提供了新的见解.
  • 这个平台促进了对早期人类发展的理解,并为疾病建模提供了潜力.