<?xml version="1.0" encoding="UTF-8"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-10-19T00:02:53Z</responseDate><request verb="GetRecord" identifier="oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/16500" metadataPrefix="oai_dc">https://ebyu-rdlopen.rawdatalibrary.net/oai/request</request><GetRecord><record><header><identifier>oai:ebyu-rdlopen.rawdatalibrary.net:ebyu/16500</identifier><datestamp>2026-10-18T20:36:22Z</datestamp><setSpec>openaire</setSpec><setSpec>driver</setSpec><setSpec>com_ebyu_10000</setSpec><setSpec>col_ebyu_10001</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><dc:title>Loss of E-cadherin expression in recurrent non-invasive urothelial carcinoma of the bladder</dc:title><dc:creator>Balci, Mecdi Gurhan</dc:creator><dc:creator>Tayfur, Mahir</dc:creator><dc:subject>Urothelial carcinoma of the bladder</dc:subject><dc:subject>invasion</dc:subject><dc:subject>E-cadherin expression</dc:subject><dc:subject>CELL-ADHESION</dc:subject><dc:subject>CANCER</dc:subject><dc:subject>PROGRESSION</dc:subject><dc:subject>MIGRATION</dc:subject><dc:subject>Oncology</dc:subject><dc:subject>Pathology</dc:subject><dc:description>Background: Bladder cancer is the most common malignancy in the urothelial tract. Invasive cancer has a poor prognosis compared to non-invasive cancer, and identifying the cancer type is useful in determining the most appropriate treatment. In this study, the expression ratios of E-cadherin in non-invasive urothelial carcinoma of the bladder were investigated. The goal of the study was to predict possible invasion in the recurrence of these cases. Material and methods: Seventy-two recurrent non-invasive cases of urothelial carcinoma of the bladder were retrospectively analyzed. An immunohistochemical study of E-cadherin was performed of the baseline tissue sections. An evaluation was carried out of the intensity of membranous staining of E-cadherin and the percentage of cells that stained positive. Results: Invasive cancer was identified in the recurrence material of 14 of the 72 urothelial carcinomas of the bladder that were originally non-invasive based on the baseline samples. The rate of invasion in the recurrence material was significantly higher in cases in which the loss of E-cadherin expression was observed. Conclusion: If E-cadherin expression is negative or weak, close clinical follow-up of patients is necessary, even if the initial diagnosis is non-invasive urothelial carcinoma of the bladder. This is because the rate of invasion in these cases is higher in recurrent cases.</dc:description><dc:publisher>E-CENTURY PUBLISHING CORP</dc:publisher><dc:date>2018</dc:date><dc:type>Article</dc:type><dc:identifier>https://rdlopen.rawdatalibrary.net/r/ebyu/16500</dc:identifier><dc:identifier>1936-2625</dc:identifier><dc:language>en</dc:language><dc:relation>INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY</dc:relation><dc:rights>info:eu-repo/semantics/openAccess</dc:rights><dc:type>info:eu-repo/semantics/article</dc:type><dc:identifier>https://ebyu-rdlopen.rawdatalibrary.net/tr/items/ebyu/16500</dc:identifier></oai_dc:dc></metadata></record></GetRecord></OAI-PMH>