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Induced Pluripotent Stem Cells01:13

Induced Pluripotent Stem Cells

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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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Stem cells are undifferentiated cells that divide and produce different cell types. Ordinarily, cells that have differentiated into a specific cell type are terminally differentiated; however, scientists have found a way to reprogram these mature cells so that they dedifferentiate and return to an unspecialized, proliferative state. These cells are pluripotent like embryonic stem cells—able to produce all cell types—and are called induced pluripotent stem cells (iPSCs).
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Induced Pluripotent Stem Cells01:13

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Related Experiment Video

Updated: Apr 16, 2026

Author Spotlight: Advancements in Cell and Tissue Engineering for Tendon Repair
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Applying Shear Stress to Pluripotent Stem Cells.

Russell P Wolfe1, Julia B Guidry1, Stephanie L Messina1

  • 1Department of Biomedical Engineering, Tulane University, 500 Lindy Boggs Center, New Orleans, LA, 70118, USA.

Methods in Molecular Biology (Clifton, N.J.)
|March 13, 2015
PubMed
Summary

Understanding shear stress effects on stem cells is vital for cell therapy production. A custom bioreactor system models this, aiding mechanotransduction research and large-scale cell manufacturing.

Keywords:
BioreactorEmbryonic stem cellsInduced pluripotent stem cellsMechanotransductionPhysical microenvironmentShear stressStem cell differentiation

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Area of Science:

  • Biomedical Engineering
  • Cell Biology
  • Mechanobiology

Background:

  • Cell-based therapies require large numbers of stem cells.
  • Understanding how physical forces, like shear stress, affect stem cells is crucial for efficient production.
  • Pluripotent stem cells (PSCs) are key for regenerative medicine, but their large-scale culture presents challenges.

Purpose of the Study:

  • To investigate the effects of fluid shear stress on pluripotent stem cells (PSCs).
  • To present a custom parallel plate bioreactor system for applying controlled shear stress to adhered PSCs.
  • To establish a model system for both basic mechanotransduction research and bioreactor design for cell therapy production.

Main Methods:

  • Utilized a custom-designed parallel plate bioreactor.
  • Applied controlled fluid shear stress to PSCs cultured on protein-coated glass slides.
  • Monitored cellular responses to shear stress (specific metrics not detailed in abstract).

Main Results:

  • Demonstrated the feasibility of using a parallel plate system to apply shear stress to PSCs.
  • The system effectively imposes controlled mechanical forces on adhered stem cells.
  • The setup serves as a valuable tool for studying stem cell mechanobiology.

Conclusions:

  • The custom parallel plate bioreactor is a suitable system for studying shear stress effects on PSCs.
  • This system can inform the design of bioreactors for large-scale stem cell production.
  • It bridges basic mechanotransduction research with applied cell manufacturing.