Zebrafish tailfin as an in vivo model for capturing tissue-scale cell dynamics

Area of Science:

• Developmental Biology
• Regenerative Medicine
• Cellular Dynamics

Background:

• Collective cell dynamics are essential for development and regeneration.
• Studying tissue-scale cell dynamics in vivo presents significant challenges.
• Existing models often lack the complexity or resolution for comprehensive analysis.

Purpose of the Study:

• To highlight the advantages of the adult zebrafish tailfin as an in vivo model for studying collective cell dynamics.
• To introduce the anatomical features and available tools for research using this model.
• To demonstrate the model's capability for millimeter-scale, single-cell resolution tracking in live animals.

Main Methods:

• Utilizing the adult zebrafish tailfin (caudal fin) as a complex tissue model.
• Employing live-imaging setups and transgenic reporter tools for epidermal cell tracking.
• Applying techniques for millimeter-scale, single-cell resolution dynamic analysis in vivo.

Main Results:

• The zebrafish tailfin model facilitates robust in vivo dissection of collective cell dynamics.
• Millimeter-scale cell tracking with single-cell resolution is achievable in live, regenerating tissue.
• The model supports the investigation of emergent properties in complex tissue regeneration and wound healing.

Conclusions:

• The adult zebrafish tailfin is a valuable and versatile model for in vivo studies of collective cell dynamics.
• This model system opens new research avenues at the intersection of collective cell dynamics and regenerative biology.
• Future research can leverage the zebrafish tailfin to explore complex regenerative processes with unprecedented resolution.