Methods for rectifying cell motions in vitro: breaking symmetry using microfabrication and microfluidics

Area of Science:

• Cell Biology
• Developmental Biology
• Cancer Research

Background:

• Cell motility is crucial in various biological processes, including development and cancer progression.
• Understanding external factors that influence cell direction is key to controlling cell behavior.

Purpose of the Study:

• To develop and present novel methods for identifying and characterizing external cues that dictate cell motion.
• To investigate how mechanical and chemical signals influence fibroblast directionality.

Main Methods:

• Utilized microfabrication and microfluidics to create controlled cellular environments.
• Engineered mechanical and chemical gradients at the cellular scale.
• Applied these methods to study fibroblast migration.

Main Results:

• Successfully imposed and combined mechanical and chemical cues on moving fibroblasts.
• Demonstrated the ability to engineer gradients at the cellular scale.
• Disentangled the roles of the nucleus and cell protrusion activity in determining cell direction.

Conclusions:

• The developed methods enable the characterization of external factors influencing cell motility.
• This approach provides new insights into how cells perceive and respond to directional cues.
• Findings contribute to understanding cell migration in contexts like development and cancer.