Adhesion-Based Self-Organization in Tissue Patterning | JoVE Visualize

Area of Science:

Developmental Biology
Cell Biology
Biophysics

Background:

The differential adhesion hypothesis explains how cell adhesion mediates self-organization and spatial pattern formation during development.
Historically, research focused on homophilic binding specificities of adhesion molecules.
Recent findings highlight the critical role of cortical tension and the signaling functions of adhesion proteins in regulating actomyosin contractility, shifting research focus.

Purpose of the Study:

To explore the shift in focus from simple adhesion binding to the signaling roles of adhesion proteins in regulating cellular dynamics.
To integrate theoretical and experimental approaches for a comprehensive understanding of adhesion-based tissue patterning.
To investigate the interplay between morphogen signaling, cell fate, and adhesion changes in robust patterning.

Main Methods:

Review and synthesis of current theoretical and experimental approaches in cell adhesion and tissue patterning research.
Analysis of the role of differential interfacial tension, encompassing both adhesion and nonadhesion molecules.
Examination of the coordination between signaling pathways, cell fate determination, and adhesion dynamics.

Main Results:

Adhesion molecules' signaling function in regulating actomyosin contractility is now central to differential adhesion studies.
The concept of differential interfacial tension provides a broader framework, unifying adhesion and nonadhesion molecules.
Effective tissue patterning relies on the coordinated interplay of morphogen signaling, cell fate decisions, and adhesion modulation.

Conclusions:

Understanding cell adhesion in development requires considering its role in regulating cortical tension and actomyosin contractility.
Integrating diverse molecular and cellular dynamics across multiple scales is crucial for deciphering adhesion-based tissue patterning.
Advances in theoretical and experimental methods offer new avenues for studying developmental self-organization.