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Related Experiment Video

Updated: May 8, 2026

Implantation of Electrospun Vascular Grafts with Optimized Structure in a Rat Model
08:46

Implantation of Electrospun Vascular Grafts with Optimized Structure in a Rat Model

Published on: June 27, 2018

Composition of intraperitoneally implanted electrospun conduits modulates cellular elastic matrix generation.

Chris A Bashur1, Anand Ramamurthi

  • 1Department of Biomedical Engineering, Cleveland Clinic, Cleveland, OH 44195, USA.

Acta Biomaterialia
|September 11, 2013
PubMed
Summary

Incorporating collagen into poly(ε-caprolactone) (PCL) scaffolds enhances tissue regeneration for vascular grafts by promoting faster wound healing and elastic matrix production. Hyaluronan oligomer (HA-o) modification had limited in vivo impact.

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • Functional tissue engineered vascular grafts require improved elastic matrix generation.
  • Recruiting elastogenic cells in vivo is a key strategy for autologous tissue growth.

Purpose of the Study:

  • To determine how electrospun conduit composition and hyaluronan oligomer (HA-o) modification affect peritoneal cell recruitment, phenotype, and elastic matrix synthesis.
  • To assess these responses based on conduit implantation time within the peritoneal cavity.

Main Methods:

  • Implantation of electrospun conduits (PCL and PCL/collagen blends) into the peritoneal cavity.
  • Assessment of cell recruitment, phenotype (macrophage, smooth muscle cell markers), and elastic matrix deposition over time.
Keywords:
CollagenElastinElectrospinningPeritoneal cavityVascular grafts

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Last Updated: May 8, 2026

Implantation of Electrospun Vascular Grafts with Optimized Structure in a Rat Model
08:46

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Published on: June 27, 2018

Finite Element Modelling of a Cellular Electric Microenvironment
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  • Polymerase Chain Reaction (PCR) analysis for cell differentiation.

    • Main Results:

    • Blending 25% collagen with PCL accelerated wound healing responses and increased elastic matrix production compared to PCL alone.
    • Cellular responses were faster with collagen-containing scaffolds, indicating improved tissue integration.
    • The in vivo effect of tethered HA-o was limited in the peritoneal inflammatory environment.

    Conclusions:

    • Scaffold composition is crucial for effective in vivo tissue regeneration and elastic matrix generation.
    • Incorporating collagen into PCL scaffolds significantly enhances vascular graft development.
    • Further research is needed on delivery methods for HA-o to overcome in vivo limitations.