Simulating in vitro epithelial morphogenesis in multiple environments.

Area of Science:

• Cell biology
• Biophysics
• Computational modeling

Background:

• Epithelial cell morphogenesis, including tubule and cyst formation, is influenced by environmental factors in vitro.
• Understanding the mechanisms controlling these developmental processes is crucial for regenerative medicine and disease modeling.

Purpose of the Study:

• To develop and utilize a discrete event simulation model to investigate the generation and control of in vitro epithelial morphogenesis.
• To identify simulation attributes corresponding to in vitro experimental observations.
• To explore how altered cell behavior logic in simulations leads to abnormal epithelial growth patterns.

Main Methods:

• Construction of a low-resolution, discrete event simulation model for epithelial cell behavior.
• Simulation of cell morphogenesis under four distinct growth conditions.
• Analysis of simulation attributes and their correlation with in vitro phenomena.
• Systematic modification of simulated cell behavior logic to observe effects on growth.

Main Results:

• Identified key simulation attributes with potential in vitro experimental counterparts.
• Demonstrated that a polarized cellular response to the environment is essential for normal epithelial phenotype generation.
• Showcased how disruptions in mechanistic control within the simulation result in aberrant growth characteristics.

Conclusions:

• The simulation model provides insights into the mechanistic basis of epithelial morphogenesis.
• Polarized cell-environment interactions are critical for normal epithelial development.
• Aberrant growth arises from disruptions in the precise control of cellular behaviors.