Related Experiment Video
Updated: Sep 29, 2025
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Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
Published on: August 9, 2012
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Development of a porcine acellular bladder matrix for tissue-engineered bladder reconstruction
Massimo Garriboli1,2, Koichi Deguchi1,3, Giorgia Totonelli1
1Stem Cells and Regenerative Medicine Section, Developmental Biology and Cancer Programme UCL Great Ormond Street Institute of Child Health, 30 Guilford Street, London, WC1N 1EH, UK.
Pediatric Surgery International
|March 22, 2022
Summary
This study developed a bladder extracellular matrix (BEM) using a novel decellularization method. The resulting BEM shows promising structural and functional properties for tissue-engineered bladder augmentation.
Area of Science:
- Biomaterials science
- Regenerative medicine
- Urology
Background:
- Enterocystoplasty for bladder augmentation has long-term complications.
- There is a need for alternative bladder augmentation strategies.
- Tissue engineering offers a promising approach to create functional bladder substitutes.
Purpose of the Study:
- To establish a protocol for creating a natural-derived bladder extracellular matrix (BEM).
- To investigate the structural and functional characteristics of the developed BEM.
- To evaluate BEM's potential for tissue-engineered bladder applications.
Main Methods:
- Porcine bladders were decellularized using dynamic detergent-enzymatic treatment with peristaltic infusion.
- Evaluated samples using histology, electron microscopy, biochemical assays (collagen, GAGs, DNA), and biomechanical testing.
- Assessed compliance and angiogenic properties via Chicken chorioallantoic membrane (CAM) assay and urodynamic studies.
Main Results:
- Decellularization preserved matrix architecture with significantly reduced DNA content.
- BEM exhibited increased tensile strength and stiffness compared to native tissue.
- CAM assay demonstrated enhanced angiogenic potential, and urodynamic studies confirmed maintained or improved bladder capacity and compliance.
Conclusions:
- Dynamic detergent-enzymatic treatment yields a BEM with retained structural integrity.
- The developed BEM demonstrates enhanced biomechanical properties and angiogenic potential.
- BEM is a viable scaffold for developing tissue-engineered bladders for augmentation purposes.
