Phenotypic switching mechanisms determine the structure of cell migration into extracellular matrix under the 'go-or-grow' hypothesis
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View abstract on PubMed
Summary
This summary is machine-generated.Phenotypic heterogeneity in collective cell migration impacts tumor progression. This study reveals that environmental factors and cell switching mechanisms significantly alter invasion speed and structure, suggesting invasiveness can indicate switching behaviors.
Area Of Science
- Mathematical biology
- Cellular dynamics
- Tumor microenvironment
Background
- Phenotypic heterogeneity is crucial in collective cell migration, influencing tumor progression and relapse.
- Existing models often simplify cell populations and neglect environmental roles in phenotype determination.
Purpose Of The Study
- To investigate how environmental factors and phenotypic switching mechanisms affect the speed and structure of migrating cell populations.
- To compare homogeneous generalist cell models with novel heterogeneous specialist cell models.
Main Methods
- Developed a continuum model from an individual-based counterpart.
- Compared models of homogeneous generalist cells with heterogeneous specialist cells (proliferating or migrating/degrading ECM).
- Analyzed the influence of extracellular matrix (ECM) and phenotypic switching.
Main Results
- Specialist cell populations without phenotype switching show reduced invasiveness compared to generalist cells.
- Implementing different phenotypic switching mechanisms significantly alters the structure of migrating cell fronts.
- Environmental factors and switching mechanisms critically influence population dynamics and invasiveness.
Conclusions
- The structure of invading cell populations can potentially reveal underlying phenotypic switching mechanisms.
- Understanding phenotypic switching is key to predicting and potentially controlling collective cell migration in contexts like cancer.
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