Physical models of embryonic epithelial healing

Area of Science:

• Developmental Biology
• Biophysics
• Cell Biology

Background:

• Embryonic healing in epithelial tissues differs from adult wound healing due to the absence of inflammatory responses.
• This unique characteristic makes embryonic healing an ideal system for studying wound healing models driven by epithelial dynamics.

Purpose of the Study:

• To review and categorize different classes of physical models used to describe embryonic epithelial wound healing.
• To analyze how these models address key questions regarding cell mechanics, signaling, and coordination during wound closure.
• To discuss the balance between model complexity and interpretability, and identify future research directions.

Main Methods:

• Review of existing literature on physical models of epithelial wound healing, encompassing discrete and continuum approaches.
• Analysis of how different model types address fundamental questions in cell dynamics and tissue repair.
• Discussion of current challenges and opportunities in hybrid modeling and model-experiment integration.

Main Results:

• Various physical models, from discrete to continuum, have been developed to simulate epithelial wound closure.
• These models offer insights into the mechanics, signaling, and coordination of cells during the healing process.
• Tensions exist between model complexity and the interpretability of results.

Conclusions:

• Physical models are crucial for understanding the mechanics of embryonic epithelial repair.
• Bridging scales and integrating models with experiments are key for advancing the field.
• Further research in hybrid modeling can enhance our comprehension of epithelial repair in both development and disease contexts.