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Vimentin Cytoskeleton Architecture Analysis on Polylactide and Polyhydroxyoctanoate Substrates for Cell Culturing
Karolina Feliksiak1, Daria Solarz1, Maciej Guzik2
1Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, 30-348 Cracow, Poland.
International Journal of Molecular Sciences
|July 2, 2021
Summary
Polylactide (PLA) and polyhydroxyoctanoate (P(3HO)) materials influence mouse embryonic fibroblast cell vimentin intermediate filaments (VIFs). Substrate properties dictate distinct VIF architectures, impacting cellular response.
Area of Science:
- Biomaterials Science
- Cell Biology
- Tissue Engineering
Background:
- Polylactide (PLA) and polyhydroxyoctanoate (P(3HO)) are biocompatible and biodegradable polymers with potential in bioengineering and medicine.
- The physicochemical properties of biomaterials significantly influence cellular responses, including adhesion, migration, and morphology.
- Intermediate filaments (IFs), particularly vimentin (VIFs) in mouse embryonic fibroblasts (MEFs), play crucial roles in maintaining cell integrity and signal transduction.
Purpose of the Study:
- To investigate the impact of PLA and P(3HO) physicochemical properties on vimentin intermediate filament organization in MEFs.
- To identify how substrate characteristics modulate VIF architecture and cellular morphology.
- To understand the role of VIFs in cellular responses to different biomaterial substrates.
Main Methods:
- Culturing mouse embryonic fibroblast cells (MEFs) on polylactide (PLA) and polyhydroxyoctanoate (P(3HO)) substrates with varying crystallinity and hydrophilicity.
- Immunofluorescence microscopy to visualize and analyze the architecture of vimentin intermediate filaments (VIFs).
- Quantitative analysis of VIF organization and cell morphology in response to different substrate properties.
Main Results:
- PLA and P(3HO) substrates differentially influenced the organization of vimentin intermediate filaments (VIFs) in MEFs.
- Two distinct VIF architectures, a 'classic' network and a 'nutshell-like' structure, were observed.
- The prevalence of these VIF architectures varied significantly depending on the crystallinity and hydrophilicity of the PLA and P(3HO) substrates.
Conclusions:
- The physicochemical properties of biomaterials like PLA and P(3HO) critically affect the vimentin cytoskeleton organization in cells.
- Substrate-dependent modulation of VIF architecture represents a key mechanism influencing cellular behavior and response.
- Understanding these interactions is vital for designing advanced biomaterials for tissue engineering and regenerative medicine.
