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Updated: Aug 8, 2026
10:19
Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
Published on: August 9, 2012
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Bladder Reconstruction in Cats Using In-Body Tissue Architecture (iBTA)-Induced Biosheet
Naoki Fujita1, Fumi Sugiyama1, Masaya Tsuboi2
1Laboratory of Veterinary Surgery, Graduate School of Agriculture and Life Sciences, The University of Tokyo, Tokyo 113-0032, Japan.
Bioengineering (Basel, Switzerland)
|June 27, 2024
Summary
This study explored using in-body tissue architecture (iBTA) biosheets for feline urinary tract reconstruction. Results show iBTA biosheets can regenerate bladder tissue in cats, offering potential for structural and functional repair.
Area of Science:
- Regenerative Medicine
- Biomaterials Science
- Veterinary Surgery
Background:
- Urinary tract diseases are prevalent in cats, frequently necessitating surgical intervention.
- Current reconstructive techniques face limitations, driving the need for innovative solutions.
Purpose of the Study:
- To evaluate the feasibility of using in-body tissue architecture (iBTA) biosheets for feline urinary tract reconstruction.
- To histologically assess the regeneration process of implanted iBTA biosheets in the feline bladder.
Main Methods:
- Biosheets were fabricated using iBTA technology by embedding molds in feline subcutaneous tissue for two months.
- A section of the bladder wall was excised and replaced with the fabricated biosheets in six cats.
- Implanted biosheets were harvested after one and three months for histological analysis.
Main Results:
- A 67% success rate was achieved in forming implantable biosheets.
- No major complications like rejection, inflammation, or infection were observed; urinary incontinence was absent.
- Histology revealed complete urothelial coverage by one month and multilayered urothelium with mature myocytes and nerve fibers by three months.
Conclusions:
- Tissue reconstruction using iBTA is applicable to cats.
- iBTA biosheets demonstrate potential for both structural and functional regeneration of the feline urinary tract.
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