Cited by 15Tissue Engineering and Regenerative MedicineElectrospun Nanofibers in Biomedical ApplicationsBone Tissue Engineering Materials

Elastomeric Trilayer Substrates with Native-like Mechanical Properties for Heart Valve Leaflet Tissue Engineering

Snyder, Yuriy, Jana, Soumen·2023·ACS Biomaterials Science & Engineering

Abstract

Heart valve leaflets have a complex trilayered structure with layer-specific orientations, anisotropic tensile properties, and elastomeric characteristics that are difficult to mimic collectively. Previously, trilayer leaflet substrates intended for heart valve tissue engineering were developed with nonelastomeric biomaterials that cannot deliver native-like mechanical properties. In this study, by electrospinning polycaprolactone (PCL) polymer and poly( l -lactide- co -ε-caprolactone) (PLCL) copolymer, we created elastomeric trilayer PCL/PLCL leaflet substrates with native-like tensile, flexural, and anisotropic properties and compared them with trilayer PCL leaflet substrates (as control) to find their effectiveness in heart valve leaflet tissue engineering. These substrates were seeded with porcine valvular interstitial cells (PVICs) and cultured for 1 month in static conditions to produce cell-cultured constructs. The PCL/PLCL substrates had lower crystallinity and hydrophobicity but higher anisotropy and flexibility than PCL leaflet substrates. These attributes contributed to more significant cell proliferation, infiltration, extracellular matrix production, and superior gene expression in the PCL/PLCL cell-cultured constructs than in the PCL cell-cultured constructs. Further, the PCL/PLCL constructs showed better resistance to calcification than PCL constructs. Trilayer PCL/PLCL leaflet substrates with native-like mechanical and flexural properties could significantly improve heart valve tissue engineering.

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Crossref · 10.1021/acsbiomaterials.2c01430

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  • Elastic three-layer PCL/PLCL lobular substrate prepared by electrospinning has natural tensile, bending and anisotropic properties, better anisotropy and flexibility, and better meets heart valve needs.

    “Snyder et al. prepared an elastic three-layer PCL/PLCL lobular substrate with natural tensile, bending and anisotropic properties through electrospinning technology. This composite material has better anisotropy and flexibility, and can better meet the needs of heart valves [172].”

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Authors
Snyder, Y., & Jana, S.
Affiliations
University of Missouri (US)
Corresponding author
Jana, Soumen
Venue
ACS Biomaterials Science & Engineering
Published
2023-02-20
Volume
9
Issue
3
Pages
1570-1584
ISSN
2373-9878 (ISSN-L)
OpenAlex
W4321369055
Cited by
15
References
90
Citations by year
2026: 5 · 2025: 3 · 2024: 5 · 2023: 2
FWCI
4.00
Type
journal article
Language
en
Open access
closed
Locations
  • ACS Biomaterials Science & Engineering (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Heart, Lung, and Blood Institute (R00HL134823)
Topics
  • Health Sciences › Medicine › Surgery › Tissue Engineering and Regenerative Medicine
  • Physical Sciences › Materials Science › Biomaterials › Electrospun Nanofibers in Biomedical Applications
  • Physical Sciences › Engineering › Biomedical Engineering › Bone Tissue Engineering Materials
Keywords
polycaprolactone, poly(L-lactide-co-ε-caprolactone), electrospinning, mechanical anisotropy, calcification resistance, extracellular matrix synthesis, cell proliferation
MeSH terms
Animals, Aortic Valve, Aortic Valve Stenosis, Calcinosis, Cells, Cultured, Polymers, Swine, Tissue Engineering, Tissue Scaffolds

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