Bio-chemo-mechanical models for nuclear deformation in adherent eukaryotic cells
Michele M Nava1, Manuela T Raimondi, Riccardo Pietrabissa
1LaBS - Laboratory of Biological Structure Mechanics, Department of Chemistry, Materials and Chemical Engineering "Giulio Natta", Politecnico di Milano, Piazza L. da Vinci, 32, 20133 , Milano, Italy, michele.nava@polimi.it.
Cellular forces influence gene transcription by altering nuclear structure. This review explores computational models of cell mechanics to understand how these mechano-chemical stimuli affect the nucleus and gene expression.
Area of Science:
- Cell Biology
- Biophysics
- Computational Biology
Background:
- Eukaryotic cells respond to diverse chemical and mechanical stimuli.
- Mechano-chemical stimuli, including cytoskeletal forces and extracellular forces, regulate cell behavior.
- The nucleus plays a critical role in mechanosensing, influencing gene transcription via chromatin organization and nuclear membrane permeability.
Purpose of the Study:
- To review computational models investigating the mechano-chemical behavior of adherent eukaryotic cells.
- To analyze discrete and continuum approaches for single-cell mechanics modeling.
- To focus on bio-chemo-mechanical models and techniques that incorporate the nucleus.
Main Methods:
- Literature review of computational models for eukaryotic cell mechanics.
- Analysis of discrete and continuum modeling approaches.
- Focus on bio-chemo-mechanical models and nuclear modeling techniques.
Main Results:
- Identified two main classes of computational models: discrete and continuum approaches.
- Highlighted the importance of bio-chemo-mechanical models that account for the nucleus.
- Discussed modeling techniques' ability to predict cytoskeletal contractility and nuclear stress-strain states.
Conclusions:
- Computational models are crucial for understanding the poorly understood molecular mechanisms of nuclear mechanosensing.
- Modeling approaches provide insights into how cellular forces impact nuclear structure and gene expression.
- Further development of these models is needed to fully elucidate the cell's response to mechano-chemical stimuli.
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