Related Experiment Video
Updated: Dec 30, 2025
04:05
Surgical Model for Single-Staged Tissue-Engineered Urothelial Tubes in Minipigs
Published on: July 5, 2024
602
Encapsulated three-dimensional bioprinted structure seeded with urothelial cells: a new construction technique for
Yi-Peng Jin1, Chong Shi2, Yuan-Yi Wu3
1Department of Urology, Sixth Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100048, China.
Chinese Medical Journal
|January 25, 2020
Summary
This study developed a novel tissue-engineered urinary tract patch using 3D bioprinting and stem cell technology. The engineered patch successfully mimicked native urinary tract smooth muscle, offering a promising solution for urinary tract reconstruction.
Area of Science:
- Regenerative Medicine
- Biotechnology
- Urology
Background:
- Traditional urinary tract patch fabrication methods suffer from poor cell viability and distribution.
- Addressing these limitations is crucial for effective urinary tract reconstruction.
Purpose of the Study:
- To develop a tissue-engineered urinary tract patch using 3D bioprinting and human adipose-derived stem cells (hADSCs).
- To evaluate the efficacy of the engineered patch in a Beagle urinary tract defect model.
Main Methods:
- hADSCs were differentiated into induced microtissues (ID-MTs) and characterized.
- ID-MTs were utilized for 3D bioprinting to create the urinary tract patch.
- The patch was implanted in nude mice to assess vascularization and smooth muscle layer formation.
- Human urothelial cells were seeded onto the patch to evaluate urothelialization.
Main Results:
- 3D bioprinted structures with ID-MTs demonstrated enhanced vascularization and smooth muscle fiber formation.
- The engineered patch successfully mimicked the smooth muscle layer of the native urinary tract.
- A monolayer of urothelial cells was observed after seeding on the encapsulated structure.
Conclusions:
- 3D bioprinting combined with tissue engineering offers a promising approach for fabricating urinary tract patches.
- This method holds potential for future investigations in urinary tract reconstruction.
