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Related Concept Videos

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Cell migration, the process by which cells move from one location to another, is essential for the proper development and viability of organisms throughout their life. When cells are not able to migrate properly to their ordained locations, various disorders may occur. For example, disruption in cell migration causes chronic inflammatory diseases such as arthritis.
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Myosins are multimeric motor proteins involved in various cellular processes such as migration, adhesion, and proliferation. Myosin II is the most common type in animal cells, which binds and cross-links actin filaments.
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Measuring Cell-Edge Protrusion Dynamics during Spreading using Live-Cell Microscopy
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A mechanistic protrusive-based model for 3D cell migration.

Francisco Merino-Casallo1, Maria Jose Gomez-Benito1, Ruben Martinez-Cantin2

  • 1Multiscale in Mechanical and Biological Engineering (M2BE), Aragon Institute of Engineering Research (I3A), Zaragoza 50018, Spain; Department of Mechanical Engineering, Universidad de Zaragoza, Zaragoza 50009, Spain.

European Journal of Cell Biology
|July 17, 2022
PubMed
Summary
This summary is machine-generated.

This study introduces a new computational model for 3D cell migration, revealing that cell movement in complex environments depends on both cell traits and external factors.

Keywords:
3D cell migrationCell - matrix interactionsCell mechanicsMatrix mechanicsMatrix remodelingProtrusion dynamics

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Area of Science:

  • Cell Biology
  • Biophysics
  • Computational Biology

Background:

  • Cell migration is vital for development and healing, but its mechanisms in 3D environments remain unclear.
  • Most research has focused on 2D surfaces, limiting understanding of in vivo cell motility.
  • 3D matrices better mimic physiological conditions for studying cell migration.

Purpose of the Study:

  • To develop a novel in silico model for 3D mesenchymal cell migration.
  • To investigate how the chemical and mechanical environment influences cell motility.
  • To explore the roles of cell adhesion, nuclear properties, matrix hindrance, and ECM degradation.

Main Methods:

  • Developed a computational model simulating 3D cell migration.
  • Incorporated parameters for cell phenotype, matrix steric hindrance, and extracellular matrix (ECM) degradation.
  • Analyzed the influence of environmental factors on cell movement dynamics.

Main Results:

  • The model simulates cell migration influenced by environmental cues.
  • Observed that cell migration difficulty increases with matrix density, particularly nuclear squeezing.
  • Results align with in vitro findings showing fibroblasts exhibit random trajectories (adurotaxis) rather than chemotaxis in collagen gels.

Conclusions:

  • 3D cell migration is highly context-dependent, influenced by cell phenotype and surrounding matrix properties.
  • The model provides insights into the complexities of cell motility in three-dimensional environments.
  • Findings challenge simple models of cell movement and highlight the importance of environmental interactions.