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Updated: Aug 9, 2026

Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
Published on: August 14, 2019
Symposium report on urothelial dysfunction: pathophysiology and novel therapies
A Kanai1, W de Groat, L Birder
1Department of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA. ajk5@pitt.edu
The urothelium is an active signaling network, not just a passive barrier. Understanding its role in bladder function and pathology is key to developing new treatments for conditions like interstitial cystitis and overactive bladder.
Area of Science:
- Urology
- Cell Biology
- Pathophysiology
Background:
- The urothelium, once considered a passive barrier, is now recognized as a dynamic signaling network.
- This network involves urothelial cells, nerves, and myofibroblasts, playing a crucial role in bladder function.
Framework:
- Exploration of urothelial structure and function.
- Investigated the role of adenosine triphosphate (ATP) in urothelial signaling and cystitis.
- Examined myofibroblasts, purinergic receptors, and antiproliferative factors in interstitial cystitis.
Implementation:
- Discussed the urothelium's role as a reservoir for bacterial infections.
- Addressed radiation cystitis, nitric oxide, and gene therapy approaches.
- Reviewed intravesical treatments for bladder conditions.
Implications:
- The urothelium actively participates in bladder sensation, blood flow modulation, and pathogen defense.
- Pathological processes like interstitial cystitis and radiation damage involve complex urothelial mechanisms.
- New therapeutic strategies targeting urothelial pathways offer promise for lower urinary tract disorders.
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