Preservation of Mechanical and Morphological Properties of Porcine Cardiac Outflow Vessels After Decellularization and Wet Storage

Overview

Journal Biomimetics (Basel)

Date 2023 Jul 28

PMID 37504203

Authors

David Sergeevichev

Maria Vasiliyeva

Elena Kuznetsova

Boris Chelobanov

Affiliations

Soon will be listed here.

Abstract

Widely used storage methods, including freezing or chemical modification, preserve the sterility of biological tissues but degrade the mechanical properties of materials used to make heart valve prostheses. Therefore, wet storage remains the most optimal option for biomaterials. Three biocidal solutions (an antibiotic mixture, an octanediol-phenoxyethanol complex solution, and a glycerol-ethanol mixture) were studied for the storage of native and decellularized porcine aorta and pulmonary trunk. Subsequent mechanical testing and microstructural analysis showed a slight increase in the tensile strength of native and decellularized aorta in the longitudinal direction. Pulmonary trunk elongation increased 1.3-1.6 times in the longitudinal direction after decellularization only. The microstructures of the tested specimens showed no differences before and after wet storage. Thus, two months of wet storage of native and decellularized porcine aorta and pulmonary trunks does not significantly affect the strength and elastic properties of the material. The wet storage protocol using alcohol solutions of glycerol or octanediol-phenoxyethanol mixture may be intended for further fabrication of extracellular matrix for tissue-engineered biological heart valve prostheses.

Citing Articles

Decellularization and an In Situ Tissue Engineering Approach in the Development of an Aortic Graft: Technological Features and Mechanobiological Studies.

Sergeevichev D, Fomenko V, Chepeleva E, Kuznetsova E, Vaver A, Zhulkov M Polymers (Basel). 2025; 17(3).

PMID: 39940507 PMC: 11819663. DOI: 10.3390/polym17030305.

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