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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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Cytoskeletal Crosstalk in Cell Migration.

Shailaja Seetharaman1, Sandrine Etienne-Manneville2

  • 1Cell Polarity, Migration and Cancer Unit, Institut Pasteur, UMR3691 CNRS, Equipe Labellisée Ligue Contre le Cancer, F-75015, Paris, France; Université Paris Descartes, Sorbonne Paris Cité, 12 Rue de l'École de Médecine, 75006 Paris, France.

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Summary

Cell migration relies on coordinated cytoskeleton dynamics. Master regulators like RhoGTPases and crosstalk between actin, microtubules, and intermediate filaments ensure efficient cell movement.

Keywords:
actinadhesioncytoskeletonfocal adhesionsintermediate filamentsmechanotransductionmicrotubules

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Area of Science:

  • Cell Biology
  • Biophysics

Background:

  • Cell migration is crucial for development and disease.
  • The cytoskeleton, composed of actin, microtubules, and intermediate filaments, drives cell movement.
  • Cytoskeletal rearrangements and signaling cascades control cell migration.

Purpose of the Study:

  • To elucidate the role of master regulators in coordinating cytoskeletal structures during cell migration.
  • To summarize recent findings on crosstalk mechanisms between cytoskeletal networks.

Main Methods:

  • Review of existing literature on cell migration and cytoskeletal dynamics.
  • Analysis of signaling pathways, particularly RhoGTPases, and their impact on cytoskeletal components.

Main Results:

  • RhoGTPases act as master regulators, simultaneously controlling actin, microtubules, and intermediate filaments.
  • Interplay between cytoskeletal networks allows for local regulation and coordinated migration.
  • Adhesion formation and maturation are linked to cytoskeletal rearrangements.

Conclusions:

  • Coordinated dynamics of the three main cytoskeletal filaments are essential for efficient cell migration.
  • Understanding master regulators and crosstalk mechanisms provides insights into cell motility.