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Cancer cells optimize elasticity for efficient migration.

Ahmad Sohrabi Kashani1, Muthukumaran Packirisamy1

  • 1Optical Bio-Microsystem Lab, Micro-Nano-Bio-Integration Center, Department of Mechanical, Industrial and Aerospace Engineering, Concordia University, 1455 De Maisonneuve Boulevard West, Montreal, Quebec, Canada H3G 1M8.

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|November 18, 2020
PubMed
Summary
This summary is machine-generated.

Cancer cell stiffness influences migration and invasion, key factors in metastasis. This study introduces a migratory index to model how cell mechanics impact cancer progression, revealing optimal stiffness for maximum invasive mobility.

Keywords:
cancer cellscell bulk elasticitycell invasioncell mechanobiologycell migrationmigratory index

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Area of Science:

  • Biophysics
  • Cell Biology
  • Cancer Research

Background:

  • Cancer progression involves changes in cell mechanics, particularly stiffness.
  • Altered cell stiffness affects cancer cell migration and invasion, contributing to metastasis and mortality.
  • Existing research shows conflicting correlations between cell stiffness and migratory/invasive capabilities.

Purpose of the Study:

  • To define an energy-dependent migratory index to model the influence of cell mechanical properties on migration.
  • To investigate how changes in cell stiffness affect cell migration relevant to cancer progression.
  • To explore the relationship between cell physical parameters and optimal conditions for invasive mobility.

Main Methods:

  • Developed a mechanical model based on strain energy from contractile forces.
  • Defined an energy-dependent migratory index.
  • Utilized computational studies to analyze cell migration dynamics.

Main Results:

  • The migratory index equally represents cell deformation and force transmission.
  • Cells exhibit a maximum migratory index within a specific range of bulk elasticity.
  • This indicates optimal conditions for invasive mobility based on cell shape, size, and elasticity.

Conclusions:

  • The proposed model explains variations in cell stiffness during cancer progression.
  • Cancer cell stiffness may increase or decrease to achieve maximum mobility potential.
  • This framework aids in understanding the mechanical basis of cancer cell invasion.