{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,21]],"date-time":"2026-08-21T13:27:53Z","timestamp":1787318873578,"version":"build-2736575974"},"reference-count":46,"publisher":"Wiley","issue":"7","license":[{"start":{"date-parts":[[2020,4,17]],"date-time":"2020-04-17T00:00:00Z","timestamp":1587081600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Pathology International"],"published-print":{"date-parts":[[2020,7]]},"abstract":"<jats:p>\n                    Immunohistochemically p16 (CDKN2A)\u2010negative uterine cervical squamous cell carcinoma (SCC) is uncommon, and there are few reports about its pathological features. This study explored the causes of p16 negativity in such cases. We analyzed diagnostic tissue samples of five cases of p16\u2010negative cervical SCC among 107 patients who underwent hysterectomy at Kyoto University Hospital between January 2010 and December 2015. The samples were subjected to immunohistochemical staining,\n                    <jats:italic>in situ<\/jats:italic>\n                    hybridization and a genetic analysis. Two of five cases were positive for human papilloma virus (HPV) by genotyping. One was positive for HPV56 with promoter hypermethylation of\n                    <jats:italic>CDKN2A<\/jats:italic>\n                    and co\u2010existing Epstein\u2013Barr virus infection. Another was positive for HPV6 categorized as low\u2010risk HPV with condylomatous morphology. Among the remaining three cases, one had amplification of the L1 gene of HPV with promoter hypermethylation of\n                    <jats:italic>CDKN2A<\/jats:italic>\n                    and\n                    <jats:italic>TP53<\/jats:italic>\n                    mutation, and one of the other two HPV\u2010negative cases had a homozygous\n                    <jats:italic>CDKN2A<\/jats:italic>\n                    deletion, while the other was positive for p53 and CK7. p16\u2010negativity of cervical SCC is often associated with an unusual virus infection status and\n                    <jats:italic>CDKN2A<\/jats:italic>\n                    gene abnormality.\n                  <\/jats:p>","DOI":"10.1111\/pin.12930","type":"journal-article","created":{"date-parts":[[2020,4,18]],"date-time":"2020-04-18T02:31:00Z","timestamp":1587177060000},"page":"413-421","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Uterine cervical squamous cell carcinoma without p16 (CDKN2A) expression: Heterogeneous causes of an unusual immunophenotype"],"prefix":"10.1111","volume":"70","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8991-1473","authenticated-orcid":false,"given":"Mariyo","family":"Rokutan\u2010Kurata","sequence":"first","affiliation":[{"name":"Department of Diagnostic Pathology Kyoto University Hospital  Kyoto Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sachiko","family":"Minamiguchi","sequence":"additional","affiliation":[{"name":"Department of Diagnostic Pathology Kyoto University Hospital  Kyoto Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tatsuki R","family":"Kataoka","sequence":"additional","affiliation":[{"name":"Department of Diagnostic Pathology Kyoto University Hospital  Kyoto Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kaoru","family":"Abiko","sequence":"additional","affiliation":[{"name":"Department of 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