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Related Concept Videos

Cell Migration01:09

Cell Migration

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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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Cell Migration01:19

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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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Chemotaxis and Direction of Cell Migration01:21

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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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Cancer Cell Migration through Invadopodia01:35

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Invadosome is a broad category of cell surface structures with proteolytic activity that  degrades the extracellular matrix (ECM). Invadosomes are present in normal cell types, including macrophages, endothelial cells, and neurons, as well as tumor cells. Although the macrophage podosomes and tumor cell invadopodia are classified as invadosomes, they have different structures, molecular pathways, and functions. Podosomes are short structures that last for a few minutes. However,...
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Role of Myosin in Cell Migration01:18

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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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Cytoskeletal Coordination in Cell Migration01:32

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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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In vitro Cell Migration and Invasion Assays
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In vitro Cell Migration and Invasion Assays

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Cell migration, freshly squeezed.

Matthew D Welch1

  • 1Department of Molecular and Cell Biology, University of California, Berkeley, Berkeley, CA 94720, USA.

Cell
|February 14, 2015
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Summary
This summary is machine-generated.

Cell migration modes change with physical cues. New research reveals confinement and contractility drive a stable bleb migration mode in embryonic and tumor cells.

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Area of Science:

  • Cell biology
  • Biophysics

Background:

  • Cells migrate using various motility modes.
  • Environmental cues like chemical signals and physical forces influence cell movement.
  • Understanding how cells switch between migration modes is crucial for development and disease.

Purpose of the Study:

  • To investigate the impact of physical confinement and cellular contractility on cell migration modes.
  • To identify and characterize a novel migration mode termed 'stable bleb migration'.

Main Methods:

  • Utilized advanced microscopy techniques to observe cell behavior.
  • Employed microfluidic devices to control cellular confinement.
  • Manipulated cellular contractility through genetic or pharmacological approaches.

Main Results:

  • Demonstrated that physical confinement and increased contractility promote a shift in migration strategy.
  • Identified and characterized 'stable bleb migration' as a distinct and persistent mode of cell movement.
  • Showed this mode is prevalent in both embryonic development and tumor contexts.

Conclusions:

  • Cellular migration is highly plastic and responsive to physical microenvironmental factors.
  • Stable bleb migration represents a newly defined mode of cell motility driven by confinement and contractility.
  • This finding has implications for understanding cell migration in developmental processes and cancer metastasis.