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Bladder regeneration in a canine model using a bladder acellular matrix loaded with a collagen-binding bFGF
Chunying Shi1, Wei Chen, Bing Chen
1Department of Human anatomy, Histology and Embryology, College of Medicine, Qingdao University, Qingdao, 266021, China.
Biomaterials Science
|October 20, 2017
Summary
This study shows a new scaffold using collagen-binding basic fibroblast growth factor (CBD-bFGF) effectively regenerates large bladder defects in dogs. This biomaterial shows promise for future bladder reconstruction surgery.
Area of Science:
- Regenerative Medicine
- Urological Surgery
- Biomaterials Science
Background:
- Bladder reconstruction is a significant challenge in urological surgery.
- Existing regenerative scaffolds have limitations, particularly in large animal models.
- Previous work demonstrated collagen-binding basic fibroblast growth factor (CBD-bFGF) promotes bladder regeneration in rats.
Purpose of the Study:
- To evaluate the efficacy of a functional scaffold in a large animal model with a substantial bladder defect.
- To assess the regenerative capacity of CBD-bFGF activated bladder acellular matrix (BAM) scaffold.
Main Methods:
- A bladder acellular matrix (BAM) scaffold was activated with CBD-bFGF.
- The CBD-bFGF/BAM scaffold was implanted in a canine model with a large segment bladder defect (50% resection).
- Regeneration of smooth muscle, vasculature, and nerves was assessed, along with neobladder function.
Main Results:
- The CBD-bFGF/BAM functional scaffold successfully promoted regeneration of bladder smooth muscle, vascular, and nerve tissues.
- Significant improvements in neobladder function were observed in the treated canines.
- The scaffold demonstrated effectiveness in repairing a large segment bladder defect.
Conclusions:
- The CBD-bFGF/BAM functional scaffold is a promising biomaterial for bladder reconstruction.
- This approach shows potential for treating severely damaged bladders in clinical settings.
- Further research may validate its use in human urological reconstructive surgery.
