George Tsachouridis , Xiaohe Liu , Bernadette de Bakker , Rien Nijman , Laetitia de Kort , Petra de Graaf
{"title":"尿道板的显微和分子分析：改善尿道下裂手术效果的一步。","authors":"George Tsachouridis , Xiaohe Liu , Bernadette de Bakker , Rien Nijman , Laetitia de Kort , Petra de Graaf","doi":"10.1016/j.urology.2025.01.062","DOIUrl":null,"url":null,"abstract":"<div><h3>Objective</h3><div>To investigate the microscopic and molecular structure of the urethral plate in hypospadias patients compared to normal urethral tissue, focusing on epithelial characteristics, cytokeratin expression, vascular patterns, and extracellular matrix components, including elastin fibers.</div></div><div><h3>Methods</h3><div>We analyzed 8 full-thickness mid urethral plate samples from pediatric hypospadias patients using immunohistochemistry to evaluate epithelial structure, cytokeratin expression (PanCK, CK7, CK10, CK13, CK14), vascular patterns (von Willebrand Factor, CD31), and extracellular matrix components (elastin). Control tissues included fetal urethras and penile urethras from gender confirmation surgery.</div></div><div><h3>Results</h3><div>The hypospadias urethral plate exhibited a multi-layered epithelium, contrasting with the single-layered normal urethral epithelium. Cytokeratin expression differed significantly: CK7 was predominantly negative in hypospadias samples but strongly positive in controls; CK10 showed variable expression; CK13 and CK14 were consistently positive in hypospadias samples, with CK14 exhibiting strong expression in the basal layer. Vascular analysis revealed fewer sub-epithelial capillaries and smaller vascular spaces in hypospadias tissue. Elastin expression was positive in hypospadias samples, while fetal urethra showed lower expression and adult urethra displayed distinct elastin fiber bundles. Minimal smooth muscle tissue was observed in hypospadias and fetal samples compared to adult controls.</div></div><div><h3>Conclusion</h3><div>The urethral plate in hypospadias patients demonstrates significant structural and molecular differences from normal urethral tissue, suggesting a developmental delay or arrest. These differences may contribute to surgical challenges and post-operative complications. Understanding these unique tissue characteristics could inform the development of novel surgical techniques or tissue engineering approaches to improve hypospadias repair outcomes.</div></div>","PeriodicalId":23415,"journal":{"name":"Urology","volume":"200 ","pages":"Pages 142-150"},"PeriodicalIF":2.0000,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Microscopic and Molecular Analysis of the Urethral Plate: A Step Towards Improved Hypospadias Surgery Outcomes\",\"authors\":\"George Tsachouridis , Xiaohe Liu , Bernadette de Bakker , Rien Nijman , Laetitia de Kort , Petra de Graaf\",\"doi\":\"10.1016/j.urology.2025.01.062\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><h3>Objective</h3><div>To investigate the microscopic and molecular structure of the urethral plate in hypospadias patients compared to normal urethral tissue, focusing on epithelial characteristics, cytokeratin expression, vascular patterns, and extracellular matrix components, including elastin fibers.</div></div><div><h3>Methods</h3><div>We analyzed 8 full-thickness mid urethral plate samples from pediatric hypospadias patients using immunohistochemistry to evaluate epithelial structure, cytokeratin expression (PanCK, CK7, CK10, CK13, CK14), vascular patterns (von Willebrand Factor, CD31), and extracellular matrix components (elastin). Control tissues included fetal urethras and penile urethras from gender confirmation surgery.</div></div><div><h3>Results</h3><div>The hypospadias urethral plate exhibited a multi-layered epithelium, contrasting with the single-layered normal urethral epithelium. Cytokeratin expression differed significantly: CK7 was predominantly negative in hypospadias samples but strongly positive in controls; CK10 showed variable expression; CK13 and CK14 were consistently positive in hypospadias samples, with CK14 exhibiting strong expression in the basal layer. Vascular analysis revealed fewer sub-epithelial capillaries and smaller vascular spaces in hypospadias tissue. Elastin expression was positive in hypospadias samples, while fetal urethra showed lower expression and adult urethra displayed distinct elastin fiber bundles. Minimal smooth muscle tissue was observed in hypospadias and fetal samples compared to adult controls.</div></div><div><h3>Conclusion</h3><div>The urethral plate in hypospadias patients demonstrates significant structural and molecular differences from normal urethral tissue, suggesting a developmental delay or arrest. These differences may contribute to surgical challenges and post-operative complications. Understanding these unique tissue characteristics could inform the development of novel surgical techniques or tissue engineering approaches to improve hypospadias repair outcomes.</div></div>\",\"PeriodicalId\":23415,\"journal\":{\"name\":\"Urology\",\"volume\":\"200 \",\"pages\":\"Pages 142-150\"},\"PeriodicalIF\":2.0000,\"publicationDate\":\"2025-06-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Urology\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0090429525001116\",\"RegionNum\":3,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/2/3 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q2\",\"JCRName\":\"UROLOGY & NEPHROLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Urology","FirstCategoryId":"3","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0090429525001116","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/3 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"UROLOGY & NEPHROLOGY","Score":null,"Total":0}
Microscopic and Molecular Analysis of the Urethral Plate: A Step Towards Improved Hypospadias Surgery Outcomes
Objective
To investigate the microscopic and molecular structure of the urethral plate in hypospadias patients compared to normal urethral tissue, focusing on epithelial characteristics, cytokeratin expression, vascular patterns, and extracellular matrix components, including elastin fibers.
Methods
We analyzed 8 full-thickness mid urethral plate samples from pediatric hypospadias patients using immunohistochemistry to evaluate epithelial structure, cytokeratin expression (PanCK, CK7, CK10, CK13, CK14), vascular patterns (von Willebrand Factor, CD31), and extracellular matrix components (elastin). Control tissues included fetal urethras and penile urethras from gender confirmation surgery.
Results
The hypospadias urethral plate exhibited a multi-layered epithelium, contrasting with the single-layered normal urethral epithelium. Cytokeratin expression differed significantly: CK7 was predominantly negative in hypospadias samples but strongly positive in controls; CK10 showed variable expression; CK13 and CK14 were consistently positive in hypospadias samples, with CK14 exhibiting strong expression in the basal layer. Vascular analysis revealed fewer sub-epithelial capillaries and smaller vascular spaces in hypospadias tissue. Elastin expression was positive in hypospadias samples, while fetal urethra showed lower expression and adult urethra displayed distinct elastin fiber bundles. Minimal smooth muscle tissue was observed in hypospadias and fetal samples compared to adult controls.
Conclusion
The urethral plate in hypospadias patients demonstrates significant structural and molecular differences from normal urethral tissue, suggesting a developmental delay or arrest. These differences may contribute to surgical challenges and post-operative complications. Understanding these unique tissue characteristics could inform the development of novel surgical techniques or tissue engineering approaches to improve hypospadias repair outcomes.
期刊介绍：
Urology is a monthly, peer–reviewed journal primarily for urologists, residents, interns, nephrologists, and other specialists interested in urology
The mission of Urology®, the "Gold Journal," is to provide practical, timely, and relevant clinical and basic science information to physicians and researchers practicing the art of urology worldwide. Urology® publishes original articles relating to adult and pediatric clinical urology as well as to clinical and basic science research. Topics in Urology® include pediatrics, surgical oncology, radiology, pathology, erectile dysfunction, infertility, incontinence, transplantation, endourology, andrology, female urology, reconstructive surgery, and medical oncology, as well as relevant basic science issues. Special features include rapid communication of important timely issues, surgeon''s workshops, interesting case reports, surgical techniques, clinical and basic science review articles, guest editorials, letters to the editor, book reviews, and historical articles in urology.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
