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Experimental and translational models in urethral stricture research
François-Xavier Madec1, Paul Neuville2,3, Sébastien Faraj4
1Department of Urology, Groupe Hospitalier Privé Ambroise Paré-Hartmann, 48 ter Boulevard Victor Hugo, Neuilly-sur-Seine.
Current Opinion in Urology
|April 4, 2026
Summary
Urethral stricture research shows promise in animal models and tissue engineering, but clinical translation remains limited. Future success hinges on reproducible, functionally relevant, and surgically practical approaches for better patient outcomes.
Area of Science:
- Regenerative Medicine
- Urology
- Fibrosis Research
Background:
- Urethral stricture presents a significant reconstructive challenge with high recurrence rates.
- Advances in surgical techniques have not fully overcome the limitations in treating urethral stricture.
- Experimental research, including animal modeling and tissue engineering, is rapidly evolving.
Purpose of the Study:
- To review recent developments in experimental and translational models for urethral stricture disease.
- To emphasize reproducibility, biological relevance, and translational potential of these models.
- To highlight innovations in understanding fibrosis and regenerative strategies.
Main Methods:
- Refinement of experimental urethral stricture models with focus on standardization and reproducibility.
- Utilization of human molecular profiling to understand fibrotic mechanisms.
- Development of biologically active biomaterials for tissue engineering.
Main Results:
- Improved understanding of urethral stricture fibrotic mechanisms through molecular profiling.
- Tissue engineering approaches are shifting towards adaptive biomaterials.
- Promising results in large animal models and early clinical studies, but translation is limited.
Conclusions:
- Experimental research offers valuable insights and innovative strategies for urethral stricture.
- Despite advancements, direct clinical benefit from experimental sophistication is not yet evident.
- Reproducible, functionally relevant, and surgically practical approaches are crucial for clinical impact.
