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Related Concept Videos

Cell Migration01:09

Cell Migration

19.1K
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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Cell Migration01:19

Cell Migration

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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.
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Cytoskeletal Coordination in Cell Migration01:32

Cytoskeletal Coordination in Cell Migration

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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...
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Chemotaxis and Direction of Cell Migration01:21

Chemotaxis and Direction of Cell Migration

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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...
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Role of Myosin in Cell Migration01:18

Role of Myosin in Cell Migration

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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.
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....
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Cell-matrix's Response to Mechanical Forces01:13

Cell-matrix's Response to Mechanical Forces

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In animal cells, the extracellular matrix allows cells within tissues to withstand external stresses and transmits signals from the outside of the cell to the inside. The extracellular matrix is extensive, and its composition varies between different types of tissues. For example, the reticular fibers and ground substance make up the ECM in loose connective tissue, while collagen and bone minerals make up the ECM of bone tissue. 
Anchoring junctions mechanically attach a cell to the...
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Related Experiment Video

Updated: Mar 29, 2026

Study of Cell Migration in Microfabricated Channels
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Single-Cell Migration in Complex Microenvironments: Mechanics and Signaling Dynamics.

Michael Mak, Fabian Spill, Roger D Kamm

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    Cells are dynamic mechanical systems that migrate directionally through complex 3D environments. External factors like stiffness and flow significantly influence cell motility and behavior in both health and disease.

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    Area of Science:

    • Cell biology
    • Biophysics
    • Mechanobiology

    Background:

    • Cells are dynamic, mechanical entities responding to external stimuli.
    • Intracellular signaling pathways coordinate cell polarization and migration.
    • Cells navigate complex three-dimensional (3D) environments, crucial in physiological and pathological processes like cancer metastasis.

    Purpose of the Study:

    • To review recent advancements in understanding single-cell migration.
    • To highlight the impact of complex microenvironmental factors on cell motility.

    Main Methods:

    • Review of current scientific literature on cell migration.
    • Analysis of factors influencing cell behavior in 3D matrices.
    • Discussion of signaling pathways and mechanical cues in cell movement.

    Main Results:

    • Cell migration is influenced by dimensionality, confinement, topography, stiffness, and flow.
    • Cells remodel their microenvironment through force, degradation, and reorganization.
    • External cues activate and coordinate intracellular pathways for polarized migration.

    Conclusions:

    • Understanding single-cell migration in complex environments is crucial for fields ranging from developmental biology to cancer research.
    • External factors play a significant role in regulating cell motility and behavior.
    • Further research into cell-matrix interactions and mechanical signaling is warranted.