Related Experiment Video
Updated: Jun 16, 2026
10:19
Evaluation of Biomaterials for Bladder Augmentation using Cystometric Analyses in Various Rodent Models
Published on: August 9, 2012
Bladder reconstruction with adipose-derived stem cell-seeded bladder acellular matrix grafts improve morphology
Wei-Dong Zhu1, Yue-Min Xu, Chao Feng
1Department of Urology, Affiliated Sixth People's Hospital, Shanghai Jiaotong University, 600 Yi Shan Road, 200233, Shanghai, China.
World Journal of Urology
|January 22, 2010
Summary
Seeding adipose-derived stem cells (ADSCs) onto bladder acellular matrix grafts (BAMGs) significantly enhanced bladder reconstruction in rabbits, promoting smooth muscle and nerve regeneration. This combination therapy proved superior to using BAMGs alone for bladder repair.
Area of Science:
- Regenerative Medicine
- Biomaterials Science
- Urology
Background:
- Bladder reconstruction presents significant challenges.
- Acquired or congenital bladder defects require effective tissue engineering solutions.
- Adipose-derived stem cells (ADSCs) and bladder acellular matrix grafts (BAMGs) show potential for bladder repair.
Purpose of the Study:
- To evaluate the feasibility of using ADSCs seeded onto BAMGs for bladder reconstruction.
- To assess the regenerative capacity of this composite graft in a rabbit model.
- To compare the efficacy of ADSC-seeded BAMGs versus unseeded BAMGs.
Main Methods:
- Autologous ADSCs were isolated, expanded, and characterized.
- ADSCs were seeded onto BAMGs for bladder defect reconstruction in rabbits.
- Control group received unseeded BAMGs.
- Cystography and histological analysis (H&E, immunohistochemistry) were performed post-implantation.
Main Results:
- ADSCs expressed specific stem cell markers (CD90, CD44, CD105, CD166, CD34) and showed good biocompatibility with BAMGs.
- ADSC-seeded grafts led to reconstructed bladders with 94.68% of pre-defect capacity at 24 weeks.
- Complete regeneration of smooth muscle and nerve tissue was observed in the experimental group, confirmed by positive staining.
Conclusions:
- Seeding ADSCs onto BAMGs promotes significant regeneration of smooth muscle and nervous tissue in bladder reconstruction.
- The composite ADSC-BAMG graft is a more effective option for bladder reconstruction than BAMG alone.
- This approach holds promise for future clinical applications in reconstructive urology.
