Modeling continuum of epithelial mesenchymal transition plasticity

Area of Science:

• Cell Biology
• Developmental Biology
• Cancer Research

Background:

• Phenotypic plasticity enables living systems to adapt to changing environments.
• Epithelial-mesenchymal transition (EMT) is a critical developmental and cancer process where epithelial cells gain migratory mesenchymal traits.

Purpose of the Study:

• To investigate and model the dynamic phenotypic changes during EMT.
• To quantify the frequency and transitions between distinct cell morphologies during EMT.

Main Methods:

• Phase contrast microscopy of HaCaT cells undergoing EMT over 96 hours.
• Expression analysis of key EMT markers (F-actin, vimentin, fibronectin, N-cadherin).
• Quantitative analysis of cell phenotypes and their transitions using a Markovian model.

Main Results:

• Identified five distinct morphological phenotypes during EMT.
• Quantified the frequency of each phenotype over time.
• Developed a linear algebra model to describe cellular transformation mechanisms within the EMT spectrum.

Conclusions:

• The study provides a quantitative framework for understanding EMT as a continuum of phenotypic plasticity.
• The Markovian model offers a novel perspective on the dynamic mechanisms driving cellular transformation during EMT.
• This work contributes to a deeper understanding of adaptive biological dynamism in development and disease.