Intermediate filaments: Integration of cell mechanical properties during migration

Area of Science:

• Cell Biology
• Biophysics
• Biochemistry

Background:

• Cell migration is essential for development, immune responses, tissue repair, and also implicated in diseases like cancer.
• The cytoskeleton, comprising actin, microtubules, and intermediate filaments (IFs), governs cell shape, integrity, and dynamic behaviors.
• IFs act as mechanical scaffolds, enhancing cell resilience in complex 3D environments during migration.

Purpose of the Study:

• To summarize and discuss the role of intermediate filaments (IFs) in controlling cell migration.
• To highlight how IFs integrate mechanical properties and signaling functions in cell migration.
• To explore the involvement of IFs in both physiological and pathological cell migration.

Main Methods:

• Literature review and synthesis of existing research on intermediate filaments and cell migration.
• Analysis of the mechanical properties and signaling roles of IFs.
• Discussion of cytoskeletal crosstalk involving IFs, actin, and microtubules.

Main Results:

• Intermediate filaments provide unique mechanical resilience, aiding cell migration through challenging 3D environments.
• IFs participate in signaling cascades and crosstalk with other cytoskeletal networks.
• Together with actin and microtubules, IFs contribute to force generation for cell adhesion, migration, and invasion.

Conclusions:

• Intermediate filaments are key regulators of cell migration, integrating mechanical and signaling functions.
• Understanding IFs' role is vital for addressing various physiological processes and diseases involving cell migration.
• IFs are critical components in the dynamic orchestration of the cytoskeleton during cell movement.