Computational insights on the interplay between electrotaxis and mechanotaxis

Area of Science:

• Cellular biology
• Biophysics
• Bioengineering

Background:

• Cell migration is crucial for development and disease.
• Chemical, mechanical, and electrical signals direct cell movement.
• These cues often interact in vivo but are studied in isolation.

Purpose of the Study:

• Investigate the cooperation and competition between mechanical and electrical cues in cell migration.
• Understand how these cues can be engineered to control cell movement.
• Develop a predictive model for electro-mechanical interactions in cell migration.

Main Methods:

• Utilized established biophysical models to simulate cell migration.
• Analyzed the interplay between mechanical (e.g., stiffness gradients) and electrical (electrotaxis) signals.
• Incorporated cell-type-specific parameters to model varied responses.

Main Results:

• An electric field can override and reverse mechanotaxis.
• The outcome of cue interaction is highly dependent on cell-specific sensing and signaling parameters.
• Demonstrated the potential for engineered control over cell migration direction.

Conclusions:

• Electrical and mechanical cues exhibit complex interactions that can be leveraged to control cell migration.
• Cell-specific characteristics are critical determinants of migration response.
• A freely available platform is provided to predict and tailor electro-mechanical cue interactions for biological applications.