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Extracellular matrix covered biomaterials for human endothelial cell growth
P Desgranges1, M Tardieu, D Loisance
1Centre de Recherches Chirurgicales, CNRS, URA 1431, CHU Henri Mondor, Creteil, France.
The International Journal of Artificial Organs
|December 1, 1992
Summary
This study optimized endothelial cell growth on vascular biomaterials. Extracellular matrix (ECM) derived from bovine cornea endothelial cells (BCEC) proved superior for human endothelial cell (HEC) attachment and proliferation.
Area of Science:
- Biomaterials Science
- Cell Biology
- Tissue Engineering
Background:
- Endothelial cells are crucial for vascular health.
- Vascular biomaterials require optimal cell adhesion and growth.
- Extracellular matrix (ECM) plays a vital role in cell behavior.
Purpose of the Study:
- To optimize conditions for endothelial cell growth on vascular biomaterials.
- To evaluate the efficacy of a novel ECM substratum for human endothelial cell (HEC) culture.
- To compare HEC attachment and growth on various biomaterial coatings.
Main Methods:
- Bovine cornea endothelial cells (BCEC) were cultured and stimulated with basic Fibroblast Growth Factor (bFGF).
- ECM was isolated from BCEC using hypotonic shock.
- Human endothelial cells (HEC) were purified from omentum via collagenase-dispase digestion, filtration, and Percoll gradient centrifugation.
Main Results:
- ECM derived from BCEC significantly enhanced human endothelial cell (HEC) attachment and growth compared to laminin, poly-L-lysine, and fibronectin.
- The quality of the cultured endothelium was validated by specific markers (Factor VIII, MHC class I) and the absence of others (MHC class II).
Conclusions:
- ECM derived from BCEC is a highly effective substratum for endothelial cell culture.
- This optimized ECM-based approach shows promise for vascular tissue engineering applications.
- The findings provide a foundation for developing improved vascular grafts and regenerative medicine strategies.