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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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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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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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Mechanism of Lamellipodia Formation01:31

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Cells migrating in response to external stimuli form lamellipodia, which are thin membrane protrusions supported by a mesh of linked, branched, or unbranched actin filaments. These actin filaments interact with myosin motor proteins, creating the dynamic actomyosin complex within the cytoskeleton. Contractility, or the ability to generate contractile stress, is inherent to the actomyosin complex. It helps cells detect the stiffness of the surrounding ECM and exert contractile force for...
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Study of Cell Migration in Microfabricated Channels
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Mechanisms for fast cell migration in complex environments.

Pablo Vargas1, Lucie Barbier2, Pablo José Sáez1

  • 1Institut Curie, PSL Research University, CNRS, UMR 144, F-75005 Paris, France; Institut Pierre-Gilles de Gennes, PSL Research University, F-75005 Paris, France.

Current Opinion in Cell Biology
|June 23, 2017
PubMed
Summary
This summary is machine-generated.

Leukocyte migration relies on intrinsic movement and external cues, enabling rapid travel in organs. This review details cytoskeletal mechanisms for efficient cell movement in complex anatomical landscapes.

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Area of Science:

  • Cell Biology
  • Immunology
  • Biophysics

Background:

  • Cell migration is crucial for immune surveillance and tissue repair.
  • Leukocytes (white blood cells) exhibit remarkable speed and adaptability in navigating complex biological environments.
  • Understanding leukocyte migration mechanisms is key to addressing inflammatory and immune-related diseases.

Purpose of the Study:

  • To review recent advancements in understanding rapid and efficient leukocyte migration.
  • To focus on cytoskeletal rearrangements enabling migration in confined spaces, particularly for neutrophils and dendritic cells.
  • To elucidate properties facilitating leukocyte movement through intricate tissue geometries.

Main Methods:

  • Review of current scientific literature on leukocyte migration.
  • Analysis of cytoskeletal dynamics and cellular plasticity.
  • Examination of cell behavior in confined and complex microenvironments.

Main Results:

  • Leukocyte migration is a multistep process integrating intrinsic motility with external cue interpretation.
  • Cytoskeletal rearrangements, especially in neutrophils and dendritic cells, are vital for navigating confined spaces.
  • Cellular plasticity and specific adaptations facilitate rapid movement within complex anatomical landscapes.

Conclusions:

  • Rapid leukocyte migration is essential for effective immune responses.
  • Understanding the molecular and cellular mechanisms driving leukocyte motility can inform therapeutic strategies.
  • Further research into leukocyte navigation in complex tissues will enhance our knowledge of immune cell function.