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Mechanical cell injury.

Kenneth A Barbee1

  • 1School of Biomedical Engineering, Science & Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104, USA. barbee@drexel.edu

Annals of the New York Academy of Sciences
|March 15, 2006
PubMed
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Mechanical forces can injure cells by deforming their membranes. This study explores cell membrane mechanics, mechanoporation, and therapeutic strategies for cell injury.

Area of Science:

  • Biomedical Engineering
  • Cellular Mechanics
  • Biophysics

Background:

  • Mechanical forces are crucial for tissue function and adaptation.
  • Excessive mechanical forces can lead to cellular injury.
  • Understanding cellular mechanical responses is vital for treating trauma.

Purpose of the Study:

  • To review the mechanics of cell membrane deformation and failure.
  • To present evidence for strain-rate-dependent mechanoporation.
  • To illustrate the biological consequences of cell membrane damage.

Main Methods:

  • Analysis of cell membrane deformation modes.
  • Review of experimental evidence for mechanoporation.
  • Illustration of clinical cell injury mechanisms.

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Main Results:

  • Cell membranes exhibit strain-rate-dependent transient disruption (mechanoporation).
  • Mechanoporation occurs across various cell types.
  • Complex interactions exist between structural damage and biological sequelae.

Conclusions:

  • Cell membrane mechanics are critical in understanding mechanical injury.
  • Mechanoporation is a key mechanism in cell trauma.
  • Novel therapies targeting membrane integrity show promise.