{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,3]],"date-time":"2026-03-03T15:23:12Z","timestamp":1772551392285,"version":"3.50.1"},"reference-count":32,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2023,10,5]],"date-time":"2023-10-05T00:00:00Z","timestamp":1696464000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Mol. Biosci."],"abstract":"<jats:p><jats:bold>Background:<\/jats:bold> Positive UroVysion<jats:sup>\u2122<\/jats:sup> fluorescence <jats:italic>in situ<\/jats:italic> hybridization (FISH) is generally considered as urothelial carcinoma (UC). We clarify if UroVysion<jats:sup>\u2122<\/jats:sup> FISH can be positive in carcinoma of non-urothelial lineages (CNUL), and verify the consistency of urine FISH and histological FISH in CNUL.<\/jats:p><jats:p><jats:bold>Methods:<\/jats:bold> All CNUL subjects detected by urine FISH assay due to haematuria from Tongji Hospital were screened. Meanwhile, 2 glandular cystitis and 2 urothelial carcinoma were served as negative or positive control. Paraffin-embedded tissue sections of all subjects were sent to the pathology department for histological FISH detection.<\/jats:p><jats:p><jats:bold>Results:<\/jats:bold> A total of 27 patients were included in this study, including 9 with adenocarcinomas, 11 with squamous cell carcinomas, and 7 with other tumour types. The overall positive rate in urine FISH was 64.00% (16\/25) in patients with CNUL, 77.78% (7\/9) in those with adenocarcinoma and 54.55% (6\/11) in those with squamous carcinoma. There was a significant difference in the GLP p16 gene deletion rate between UC and CNUL (100% vs. 8.00%, <jats:italic>p<\/jats:italic> = 0.017). Histological FISH results showed that the histological results of 19 patients were consistent with their urine FISH results, and only one patient with stage \u2162a urachal carcinoma had inconsistent histological FISH results (positive) and urine FISH (negative) results.<\/jats:p><jats:p><jats:bold>Conclusion:<\/jats:bold> We demonstrated for the first time the application value of FISH in CNUL on urine samples. Positive urine FISH tests indicate not only UC, but also CNUL. UroVysion<jats:sup>\u2122<\/jats:sup> FISH possibly has a high positive rate in CNUL. CNUL and UC have different genetic changes shown by FISH.<\/jats:p>","DOI":"10.3389\/fmolb.2023.1250442","type":"journal-article","created":{"date-parts":[[2023,10,5]],"date-time":"2023-10-05T15:48:35Z","timestamp":1696520915000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":2,"title":["UroVysion\u2122 fluorescence in situ hybridization (FISH) possibly has a high positive rate in carcinoma of non-urothelial lineages"],"prefix":"10.3389","volume":"10","author":[{"given":"Chunjin","family":"Ke","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xuguang","family":"Liu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jie","family":"Wan","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhiquan","family":"Hu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chunguang","family":"Yang","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2023,10,5]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"712","DOI":"10.1002\/cncr.22060","article-title":"Urachal carcinoma: clinicopathologic features and long-term outcomes of an aggressive malignancy","volume":"107","author":"Ashley","year":"2006","journal-title":"Cancer"},{"key":"B2","doi-asserted-by":"publisher","first-page":"111","DOI":"10.1016\/0165-4608(94)00114-q","article-title":"Chromosome abnormalities and p53 expression in a small cell carcinoma of the bladder","volume":"79","author":"Atkin","year":"1995","journal-title":"Cancer Genet. 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