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Cytoskeletal Mechanics Regulating Amoeboid Cell Locomotion
Begoña Alvarez-González1, Ruedi Meili2, Richard Firtel3
1Mechanical and Aerospace Engineering Department, University of California, San Diego, La Jolla, CA, 92093-0411.
Applied Mechanics Reviews
|October 21, 2014
Summary
This study reviews how cytoskeletal proteins regulate cell migration mechanics. Key proteins like ARP2/3, SCAR/WAVE, and Myosin II are crucial for cell motility and generating traction forces.
Area of Science:
- Cell Biology
- Biophysics
- Mechanobiology
Background:
- Amoeboid cell migration is vital in physiological and pathological processes.
- Understanding cell migration mechanics can inform disease treatments.
- Traction forces drive cell movement and are key to locomotion mechanics.
Purpose of the Study:
- To review the role of specific cytoskeletal components in cell migration mechanics.
- To investigate how these components regulate the cell motility cycle and traction force generation.
Main Methods:
- Review of existing literature on cell migration and cytoskeletal regulation.
- Focus on traction force microscopy (TFM) as a key measurement technique.
- Analysis of the roles of actin nucleation, SCAR/WAVE complex, and Myosin II.
Main Results:
- Actin nucleation by ARP2/3 complex (via SCAR/WAVE) is fundamental for cyclic movement and traction forces.
- PIR121 and SCAR proteins within the SCAR/WAVE complex are essential for motility cycle regulation and traction force generation.
- Myosin II is critical for cytoskeletal contractility and organizing traction forces during migration.
Conclusions:
- Specific cytoskeletal proteins are indispensable for effective amoeboid cell migration.
- Detailed understanding of these proteins can lead to targeted therapeutic strategies for diseases involving cell migration.
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