Modelling Cell Origami via a Tensegrity Model of the Cytoskeleton in Adherent Cells

Cell origami has been widely used in the field of three-dimensional (3D) cell-populated microstructures due to their multiple advantages, including high biocompatibility, the lack of special requirements for substrate materials, and the lack of damage to cells. A 3D finite element method (FEM) model...

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Main Authors: Lili Wang, Weiyi Chen
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Applied Bionics and Biomechanics
Online Access:http://dx.doi.org/10.1155/2019/8541303
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author Lili Wang
Weiyi Chen
author_facet Lili Wang
Weiyi Chen
author_sort Lili Wang
collection DOAJ
description Cell origami has been widely used in the field of three-dimensional (3D) cell-populated microstructures due to their multiple advantages, including high biocompatibility, the lack of special requirements for substrate materials, and the lack of damage to cells. A 3D finite element method (FEM) model of an adherent cell based on the tensegrity structure is constructed to describe cell origami by using the principle of the origami folding technique and cell traction forces. Adherent cell models contain a cytoskeleton (CSK), which is primarily composed of microtubules (MTs), microfilaments (MFs), intermediate filaments (IFs), and a nucleoskeleton (NSK), which is mainly made up of the nuclear lamina and chromatin. The microplate is assumed to be an isotropic linear-elastic solid material with a flexible joint that is connected to the cell tensegrity structure model by spring elements representing focal adhesion complexes (FACs). To investigate the effects of the degree of complexity of the tensegrity structure and NSK on the folding angle of the microplate, four models are established in the study. The results demonstrate that the inclusion of the NSK can increase the folding angle of the microplate, indicating that the cell is closer to its physiological environment, while increased complexity can reduce the folding angle of the microplate since the folding angle is depended on the cell types. The proposed adherent cell FEM models are validated by comparisons with reported results. These findings can provide theoretical guidance for the application of biotechnology and the analysis of 3D structures of cells and have profound implications for the self-assembly of cell-based microscale medical devices.
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spelling doaj-art-9c9b65fdf9b04905820e24b49fed94b62025-02-03T01:26:35ZengWileyApplied Bionics and Biomechanics1176-23221754-21032019-01-01201910.1155/2019/85413038541303Modelling Cell Origami via a Tensegrity Model of the Cytoskeleton in Adherent CellsLili Wang0Weiyi Chen1Shanxi Key Laboratory of Material Strength & Structural Impact, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaShanxi Key Laboratory of Material Strength & Structural Impact, College of Biomedical Engineering, Taiyuan University of Technology, Taiyuan 030024, ChinaCell origami has been widely used in the field of three-dimensional (3D) cell-populated microstructures due to their multiple advantages, including high biocompatibility, the lack of special requirements for substrate materials, and the lack of damage to cells. A 3D finite element method (FEM) model of an adherent cell based on the tensegrity structure is constructed to describe cell origami by using the principle of the origami folding technique and cell traction forces. Adherent cell models contain a cytoskeleton (CSK), which is primarily composed of microtubules (MTs), microfilaments (MFs), intermediate filaments (IFs), and a nucleoskeleton (NSK), which is mainly made up of the nuclear lamina and chromatin. The microplate is assumed to be an isotropic linear-elastic solid material with a flexible joint that is connected to the cell tensegrity structure model by spring elements representing focal adhesion complexes (FACs). To investigate the effects of the degree of complexity of the tensegrity structure and NSK on the folding angle of the microplate, four models are established in the study. The results demonstrate that the inclusion of the NSK can increase the folding angle of the microplate, indicating that the cell is closer to its physiological environment, while increased complexity can reduce the folding angle of the microplate since the folding angle is depended on the cell types. The proposed adherent cell FEM models are validated by comparisons with reported results. These findings can provide theoretical guidance for the application of biotechnology and the analysis of 3D structures of cells and have profound implications for the self-assembly of cell-based microscale medical devices.http://dx.doi.org/10.1155/2019/8541303
spellingShingle Lili Wang
Weiyi Chen
Modelling Cell Origami via a Tensegrity Model of the Cytoskeleton in Adherent Cells
Applied Bionics and Biomechanics
title Modelling Cell Origami via a Tensegrity Model of the Cytoskeleton in Adherent Cells
title_full Modelling Cell Origami via a Tensegrity Model of the Cytoskeleton in Adherent Cells
title_fullStr Modelling Cell Origami via a Tensegrity Model of the Cytoskeleton in Adherent Cells
title_full_unstemmed Modelling Cell Origami via a Tensegrity Model of the Cytoskeleton in Adherent Cells
title_short Modelling Cell Origami via a Tensegrity Model of the Cytoskeleton in Adherent Cells
title_sort modelling cell origami via a tensegrity model of the cytoskeleton in adherent cells
url http://dx.doi.org/10.1155/2019/8541303
work_keys_str_mv AT liliwang modellingcellorigamiviaatensegritymodelofthecytoskeletoninadherentcells
AT weiyichen modellingcellorigamiviaatensegritymodelofthecytoskeletoninadherentcells