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Related Concept Videos

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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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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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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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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Microtubules are thick hollow cylindrical proteins that help form the cytoskeleton. Microtubules have varied roles in the cell. These filaments help form cellular appendages like cilia and flagella, which are responsible for locomotion. The cilia arise from basal bodies, separated from the main body by a membrane-like structure forming the transition zone. This zone is the gate for the entry of lipids and proteins, creating a unique composition of lipids and proteins in the ciliary membrane and...
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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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Updated: Apr 27, 2026

Study of Cell Migration in Microfabricated Channels
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Bioengineering paradigms for cell migration in confined microenvironments.

Kimberly M Stroka1, Zhizhan Gu1, Sean X Sun2

  • 1Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD 21218, USA; Johns Hopkins Institute for NanoBioTechnology, The Johns Hopkins University, Baltimore, MD 21218, USA; Johns Hopkins Physical Sciences - Oncology Center, The Johns Hopkins University, Baltimore, MD 21218, USA.

Current Opinion in Cell Biology
|June 29, 2014
PubMed
Summary
This summary is machine-generated.

Discover a new Osmotic Engine Model for cell migration in confined spaces. This research integrates in vivo and in vitro studies to understand tumor cell metastasis in complex microenvironments.

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Area of Science:

  • Cellular Biology
  • Biophysics
  • Cancer Research

Background:

  • Cell migration is crucial for physiological and pathological processes.
  • Traditional studies on 2D substrates do not fully represent complex in vivo environments.
  • Tumor cell metastasis involves navigating confined microtracks within the body.

Purpose of the Study:

  • To investigate the mechanisms of cell migration in confined microenvironments.
  • To propose a novel model for understanding cell movement in vivo.
  • To highlight the importance of multi-disciplinary approaches in cell migration research.

Main Methods:

  • Integration of in vivo and in vitro experimental studies.
  • Application of advanced bioengineering techniques.
  • Utilizing mathematical modeling for analysis.

Main Results:

  • Discovery of a new model for cell migration in confined settings.
  • The proposed model is termed the Osmotic Engine Model.
  • Demonstrated the necessity of multi-disciplinary approaches for understanding confined cell migration.

Conclusions:

  • The Osmotic Engine Model provides new insights into cell migration in confined spaces.
  • Understanding confined cell migration is critical for metastasis research.
  • Future studies should leverage integrated approaches to explore complex biological phenomena.