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Related Concept Videos

Cell Migration01:19

Cell Migration

Cell migration is a process by which the cells move from one location to another, playing an essential role in embryological development, repair and regeneration, immune response, and metastasis. Cells migrate in response to chemical or mechanical signals generated by specific organs or tissues. The overall mechanism includes three steps - polarization, protrusion, and release. Polarization involves the formation of a distinct cell front and rear, which determines the direction of movement.
Cell Migration01:09

Cell Migration

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.
Cytoskeletal Coordination in Cell Migration01:32

Cytoskeletal Coordination in Cell Migration

A migrating cell changes its shape during the cyclic events of attachment and detachment from the substratum and repositions the cell organelles correspondingly. These complex events are orchestrated by the dynamic cytoskeletal network comprising actin filaments, intermediate filaments, and microtubules. Cytoskeletal crosstalk — the direct and indirect communication between the different components — is crucial for this coordination. Direct communication involves various linker proteins that...
Chemotaxis and Direction of Cell Migration01:21

Chemotaxis and Direction of Cell Migration

Cells can detect chemical cues in their environment and reorganize the cytoskeleton to migrate toward them or away from them. This directional migration, called chemotaxis, is essential during embryogenesis and development, immune response, tissue repair and regeneration, and reproduction. These chemical cues can either attract or repel the cell's movement. For example, axon development is determined by a combination of chemoattractants and chemorepellents that direct the growing axon towards...
Role of Myosin in Cell Migration01:18

Role of Myosin in Cell Migration

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.
Myosin II  is a hexamer comprising two heavy chains with globular heads and coiled-coil tails, two regulatory light chains, and two essential light chains. The ATPase sites on the myosin heads hydrolyze ATP, and the released phosphate generates the force for contraction. It is...
Actin Polymerization and Cell Motility01:13

Actin Polymerization and Cell Motility

Actin is a family of globular proteins that are highly abundant in eukaryotic cells. It makes up approximately 1-5% of total cell protein concentration. Actin monomers polymerize to form a complex network of polarized filaments, the actin cytoskeleton, that plays a crucial role in many cellular processes, including cell motility, division, endocytosis, and metastasis of cancer cells.
Actin cytoskeleton dynamics can produce pushing, pulling, and resistance forces that help the cell to migrate.

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Related Experiment Video

Updated: Jul 15, 2026

Study of Cell Migration in Microfabricated Channels
09:36

Study of Cell Migration in Microfabricated Channels

Published on: February 21, 2014

New method for modeling connective-tissue cell migration: improved accuracy on motility parameters.

Matt J Kipper1, Hynda K Kleinman, Francis W Wang

  • 1National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD 20892, USA.

Biophysical Journal
|May 8, 2007
PubMed
Summary

This study presents a new method to accurately model fibroblast cell migration using persistent random walks. The approach accounts for slow movement and population heterogeneity, improving the understanding of cell motility.

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Analysis of Cell Migration within a Three-dimensional Collagen Matrix
08:02

Analysis of Cell Migration within a Three-dimensional Collagen Matrix

Published on: October 5, 2014

Related Experiment Videos

Last Updated: Jul 15, 2026

Study of Cell Migration in Microfabricated Channels
09:36

Study of Cell Migration in Microfabricated Channels

Published on: February 21, 2014

Analysis of Cell Migration within a Three-dimensional Collagen Matrix
08:02

Analysis of Cell Migration within a Three-dimensional Collagen Matrix

Published on: October 5, 2014

Area of Science:

  • Cell Biology
  • Biophysics
  • Mathematical Biology

Background:

  • Persistent random walk models are effective for cell migration but struggle with slowly moving cells like fibroblasts.
  • Fibroblast migration is challenging due to slow speeds, shape changes, and population heterogeneity, hindering accurate modeling.

Purpose of the Study:

  • To develop a robust method for fitting connective-tissue cell migration data to persistent random walk models.
  • To address challenges in modeling fibroblast motility, including slow speeds and population heterogeneity.
  • To enable accurate determination of cell motility parameters for both isotropic and biased migration.

Main Methods:

  • Developed a novel fitting method for persistent random walk models applied to connective-tissue cell migration data.
  • Incorporated parameters to account for slow cell movement, shape changes, and heterogeneous cell speeds.
  • Applied the method to model both random (isotropic) and directed (biased) cell motility.

Main Results:

  • The new method accurately determines cell motility parameters for slowly migrating fibroblasts.
  • Successfully modeled isotropic cell motility, where cells move randomly.
  • Effectively modeled biased cell motility influenced by surface-bound peptide gradients, discerning differences in motility along the gradient.

Conclusions:

  • The developed method provides a significant advancement in modeling connective-tissue cell migration.
  • It enables precise quantification of cell motility parameters, overcoming previous experimental and theoretical limitations.
  • This tool can be used to investigate the impact of peptide concentration and gradient magnitude on cell migration dynamics.