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Related Experiment Video

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Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
10:19

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Polyesterurethane and acellular matrix based hybrid biomaterial for bladder engineering.

Maya Horst1,2, Vincent Milleret3, Sarah Noetzli1

  • 1Laboratory for Tissue Engineering and Stem Cell Therapy, Department of Urology, University Hospital Zurich, Zurich, Switzerland.

Journal of Biomedical Materials Research. Part B, Applied Biomaterials
|December 17, 2015
PubMed
Summary
This summary is machine-generated.

Degradable polyesterurethane (PEU) scaffolds show promise for bladder tissue engineering. PEU demonstrated superior tissue healing and reduced inflammation compared to poly(lactic-co-glycolic acid) (PLGA) in a rat model.

Keywords:
acellular matrixhybrid scaffoldpolyesterurethanetissue engineeringurinary bladder

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Tissue Engineering

Background:

  • Poly(lactic-co-glycolic acid) (PLGA) scaffolds have limitations in soft tissue engineering due to rigidity and limited mechanical property variability.
  • Developing advanced biomaterials is crucial for effective soft tissue regeneration, particularly for hollow organs like the bladder.

Purpose of the Study:

  • To investigate the potential of novel electrospun degradable polyesterurethane (PEU) hybrid scaffolds for bladder tissue engineering.
  • To compare the performance of PEU scaffolds against traditional PLGA scaffolds in vitro and in vivo.

Main Methods:

  • Hybrid microfibrous PEU and PLGA scaffolds were fabricated via direct electrospinning onto a bladder acellular matrix.
  • Scaffold morphology was analyzed using scanning electron microscopy.
  • In vitro cell proliferation and in vivo biological performance were assessed using a rat cystoplasty model, including histological and cystometric evaluations.

Main Results:

  • PEU scaffolds exhibited lower porosity and thickness than PLGA scaffolds.
  • In vitro, cell proliferation and survival were comparable on both PEU and PLGA scaffolds.
  • In vivo, PEU scaffolds showed no shrinkage, better tissue healing, enhanced smooth muscle regeneration, and reduced inflammatory responses compared to PLGA at 8 weeks.

Conclusions:

  • PEU-hybrid scaffolds are a promising biomaterial for bladder tissue engineering, offering excellent tissue integration and a low inflammatory reaction.
  • PEU demonstrates significant potential for the functional tissue engineering of bladders and other hollow organs.