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Updated: Feb 13, 2026
09:30
Generation of Multicue Cellular Microenvironments by UV-Photopatterning of Three-Dimensional Cell Culture Substrates
Published on: June 2, 2022
2.9K
Modeling the effect of substrate topography on cellular and nuclear deformations
Ana Bensabat1, Marcos Gouveia2, Claire Leclech3
1SUPA School of Physics and Astronomy, University of Edinburgh, Peter Guthrie Tait Road, Edinburgh, EH9 3FD, UK.
Computers in Biology and Medicine
|February 11, 2026
Summary
Cellular adhesion, not cytoskeleton forces, drives nuclear deformation and "caging" within microgrooves. This study models how cell-substrate adhesion and groove dimensions influence nuclear confinement in endothelial cells.
Area of Science:
- Cell Biology
- Biophysics
- Computational Biology
Background:
- Cells and their nuclei deform significantly in complex environments.
- Endothelial cells on microgroove substrates show nuclear deformations, entering grooves.
- Experiments suggest cell adhesion, not cytoskeleton forces, drives this nuclear entry.
Purpose of the Study:
- To develop a phase-field model for endothelial cell deformation on microgrooves.
- To characterize conditions for nuclear confinement ('caging') within grooves.
- To investigate the role of cell-substrate adhesion and nuclear mechanics.
Main Methods:
- Development of a phase-field model for cell deformation.
- Inclusion of a novel non-local term to prevent cell fragmentation.
- Numerical simulations of endothelial cell behavior on microgroove substrates.
Main Results:
- Significant nuclear deformation and partial caging observed under strong cell-substrate adhesion.
- Nuclear caging is favored when nuclear membrane stiffness is similar to or less than cell membrane stiffness.
- Groove dimensions (depth and width) critically influence nuclear penetration and caging.
Conclusions:
- Cell-substrate adhesion forces can drive substantial nuclear deformations.
- Cytoskeleton-independent forces are sufficient for nuclear caging within microgrooves.
- Model results align with experimental observations, validating the proposed mechanism.
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