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Live Cell Response to Mechanical Stimulation Studied by Integrated Optical and Atomic Force Microscopy
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A mechanical toy model linking cell-substrate adhesion to multiple cellular migratory responses.

Masatomo Iwasa1

  • 1Center for General Education, Aichi Institute of Technology, Toyota, 470-0392, Japan. miwasa@aitech.ac.jp.

Journal of Biological Physics
|December 14, 2019
PubMed
Summary

This study presents a simple model explaining how cell-substrate adhesion affects cell migration, offering insights into cell spreading, speed, and motility. The findings unify understanding of these complex cellular responses.

Keywords:
Cell migrationChemokinesisModelingPersistenceRandom motility coefficient

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Area of Science:

  • Cell Biology
  • Biophysics
  • Mechanobiology

Background:

  • Cell migration is influenced by environmental forces, particularly cell-substrate adhesion.
  • While cell spreading and speed responses to adhesion modulation are understood, others like persistence and motility remain unclear.

Purpose of the Study:

  • To develop a simplified model for cell migration dynamics.
  • To analytically and numerically investigate the relationship between adhesivity and cellular responses.
  • To provide a unified understanding of how adhesion influences cell migration parameters.

Main Methods:

  • Development of a toy model for cell migration.
  • Analysis of forces including adhesive force and plasma membrane tension.
  • Numerical and analytical calculations to derive relationships.

Main Results:

  • Formulas derived directly link cell adhesivity to cell spreading, persistence, and random motility coefficient.
  • The model offers a unified explanation for multiple cellular responses to adhesion changes.
  • Identified cellular properties influencing migratory behavior.

Conclusions:

  • The study provides a unified framework for understanding cell migration responses to adhesion modulation.
  • The model elucidates the causal relationships between adhesivity and key migratory parameters.
  • Suggests specific cellular properties that govern migratory behavior.