Embryonic cell-cell adhesion: a key player in collective neural crest migration

Area of Science:

• Developmental Biology
• Cell Biology
• Biophysics

Background:

• Cell migration is fundamental for development, tissue repair, and disease progression, including cancer.
• Collective cell migration requires coordinated behavior mediated by cell-cell interactions.
• Neural crest cells exemplify directional collective migration during embryogenesis.

Purpose of the Study:

• To explore the role of cell-cell adhesion in collective cell migration, particularly in neural crest cells.
• To review the molecular mechanisms governing cell-cell adhesion dynamics during migration.
• To highlight the signaling functions of cell-cell adhesion in maintaining migratory behavior and tissue integrity.

Main Methods:

• Review of existing literature on cell migration, collective movement, and neural crest cell biology.
• Analysis of molecular mechanisms of cadherin turnover and cell-cell adhesion dynamics.
• Focus on in vivo studies demonstrating the importance of cell-cell interactions.

Main Results:

• Cell-cell interactions are critical for establishing and maintaining directional collective migration.
• Cell-cell adhesion provides planar cell polarity and facilitates cell coordination.
• Cadherin turnover dynamics are essential for maintaining tissue integrity during collective migration.

Conclusions:

• Cell-cell adhesion is an active signaling process, not just passive resistance to force.
• Adhesion dynamics actively regulate cell behaviors essential for migration and tissue development.
• Understanding these mechanisms is key to comprehending embryonic development and diseases involving cell migration.