{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T23:14:04Z","timestamp":1777418044062,"version":"3.51.4"},"reference-count":61,"publisher":"MDPI AG","issue":"1","license":[{"start":{"date-parts":[[2018,1,22]],"date-time":"2018-01-22T00:00:00Z","timestamp":1516579200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cancers"],"abstract":"<jats:p>Clarifying the epigenetic regulation of tumor-related genes (TRGs) can provide insights into the mechanisms of tumorigenesis and the risk for disease recurrence in HPV-negative head and neck cancers, originating in the hypopharynx, larynx, and oral cavity. We analyzed the methylation status of the promoters of 30 TRGs in 178 HPV-negative head and neck cancer patients using a quantitative methylation-specific PCR. Promoter methylation was correlated with various clinical characteristics and patient survival. The mean number of methylated TRGs was 14.2 (range, 2\u201325). In the multivariate Cox proportional hazards analysis, the methylation of COL1A2 and VEGFR1 was associated with poor survival for hypopharyngeal cancer, with hazard ratios: 3.19; p = 0.009 and 3.07; p = 0.014, respectively. The methylation of p16 and COL1A2 were independent prognostic factors for poor survival in laryngeal cancer (hazard ratio: 4.55; p = 0.013 and 3.12; p = 0.035, respectively). In patients with oral cancer, the methylation of TAC1 and SSTR1 best correlated with poor survival (hazard ratio: 4.29; p = 0.005 and 5.38; p = 0.029, respectively). Our findings suggest that methylation status of TRGs could serve as important site-specific biomarkers for prediction of clinical outcomes in patients with HPV-negative head and neck cancer.<\/jats:p>","DOI":"10.3390\/cancers10010027","type":"journal-article","created":{"date-parts":[[2018,1,22]],"date-time":"2018-01-22T13:40:39Z","timestamp":1516628439000},"page":"27","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Analysis of Site-Specific Methylation of Tumor-Related Genes in Head and Neck Cancer: Potential Utility as Biomarkers for Prognosis"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2450-5682","authenticated-orcid":false,"given":"Kiyoshi","family":"Misawa","sequence":"first","affiliation":[{"name":"Department of Otolaryngology\/Head and Neck Surgery, Hamamatsu University School of Medicine, Shizuoka 431-3192, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Daiki","family":"Mochizuki","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\/Head and Neck Surgery, Hamamatsu University School of Medicine, Shizuoka 431-3192, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Atsushi","family":"Imai","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\/Head and Neck Surgery, Hamamatsu University School of Medicine, Shizuoka 431-3192, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masato","family":"Mima","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\/Head and Neck Surgery, Hamamatsu University School of Medicine, Shizuoka 431-3192, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yuki","family":"Misawa","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\/Head and Neck Surgery, Hamamatsu University School of Medicine, Shizuoka 431-3192, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroyuki","family":"Mineta","sequence":"additional","affiliation":[{"name":"Department of Otolaryngology\/Head and Neck Surgery, Hamamatsu University School of Medicine, Shizuoka 431-3192, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2018,1,22]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"587","DOI":"10.1016\/j.oraloncology.2014.02.015","article-title":"Methylation as a biomarker for head and neck cancer","volume":"50","author":"Arantes","year":"2014","journal-title":"Oral Oncol."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"S9","DOI":"10.1017\/S0022215116000360","article-title":"Aetiology and risk factors for head and neck cancer: United Kingdom national multidisciplinary guidelines","volume":"130","author":"Shaw","year":"2016","journal-title":"J. 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