Modelling chase-and-run migration in heterogeneous populations.

Area of Science:

• Developmental Biology
• Computational Biology
• Cell Biology

Background:

• Cell migration is fundamental to embryogenesis and disease.
• Neural crest cells (NCs) migrate extensively during development.
• Understanding NC and placode cell (PC) interactions is key to developmental processes.

Purpose of the Study:

• To develop a computational model simulating NC and PC interactions.
• To elucidate the mechanisms driving coordinated cell migration.
• To investigate the
• chase-and-run
• phenomenon.

Main Methods:

• Developed a computational model based on experimental findings.
• Incorporated hypotheses on chemotaxis (Sdf1) and contact inhibition of locomotion (CIL).
• Simulated NC-PC interactions, including heterotypic contacts.

Main Results:

• The model semi-quantitatively reproduced the
• chase-and-run
• phenomenon.
• Successfully simulated in vitro manipulations of NC migration and CIL.
• The model's minimal assumptions explained observed coordinated migration.

Conclusions:

• Mutual interactions between NCs and PCs govern coordinated migration.
• Chemotaxis and CIL are key drivers of the observed
• chase-and-run
• dynamics.
• The model provides a framework for predicting outcomes of altered cellular interactions.