Cell organization in soft media due to active mechanosensing

Area of Science:

• Cell biology
• Biophysics
• Materials science

Background:

• Cells dynamically interact with their mechanical environment.
• Cellular responses influence tissue development and function.

Purpose of the Study:

• To present a unifying principle explaining cell mechanical sensing and organization.
• To validate this principle across various experimental scenarios.

Main Methods:

• Modeling the cellular microenvironment using linear elasticity theory.
• Calculating optimal cell organization based on effective stiffness.

Main Results:

• Cells strengthen contacts and cytoskeleton towards higher stiffness.
• Observed cell orientation aligns with tensile strain and surface constraints.
• Cells form elastic strings through elastically mediated interactions.

Conclusions:

• A single principle explains diverse cell mechanical responses.
• The findings offer insights for tissue engineering and biomaterials design.
• Reevaluation of contact guidance and cell-matrix interactions is suggested.