Durotaxis: the mechanical control of directed cell migration.

Area of Science:

• Cell biology
• Biophysics
• Mechanobiology

Background:

• Directed cell migration is crucial for physiological and pathological processes.
• Cells navigate complex environments using chemical (chemotaxis) and mechanical cues.
• The mechanical guidance of cell migration, known as durotaxis, is a recent and rapidly advancing research area.

Purpose of the Study:

• To provide a comprehensive state-of-the-art review of durotaxis.
• To discuss the mechanisms of cellular sensing, transduction, and response to environmental mechanics.
• To contextualize durotaxis within cell migration and explore its in vivo relevance.

Main Methods:

• Review of in silico, in vitro, and in vivo experimental data.
• Analysis of cellular mechanisms for sensing and responding to mechanical gradients.
• Integration of durotaxis with chemotaxis and haptotaxis concepts.

Main Results:

• Durotaxis, or cell migration guided by substrate stiffness gradients, is a significant factor in cell movement.
• Cells possess sophisticated mechanisms to perceive, process, and react to mechanical environmental cues.
• Anisotropic substrates influence cell migration directionality through durotaxis.

Conclusions:

• Durotaxis is a fundamental mechanism for directed cell migration, complementing chemotaxis.
• Understanding durotaxis is key to deciphering cell behavior in native environments.
• The integration of durotaxis and chemotaxis may explain complex cell migration patterns like haptotaxis.