PMID- 26796520 OWN - NLM STAT- MEDLINE DCOM- 20161011 LR - 20190221 IS - 1746-1596 (Electronic) IS - 1746-1596 (Linking) VI - 11 DP - 2016 Jan 22 TI - SSTR2 promoter hypermethylation is associated with the risk and progression of laryngeal squamous cell carcinoma in males. PG - 10 LID - 10.1186/s13000-016-0461-y [doi] LID - 10 AB - BACKGROUND: Somatostatin receptor 2 (SSTR2) encodes somatostatin receptor that can inhibit the cell proliferation of solid tumors. Promoter hypermethylation is likely to silence the expression of SSTR2. The goal of our study was to investigate the association between SSTR2 promoter methylation and the risk and progression of laryngeal carcinoma. METHODS: In the current study, tumor tissues and their adjacent non-tumor tissues were collected from a total of 87 laryngeal squamous cell carcinoma (LSCC) male patients. DNA methylation levels of nine SSTR2 promoter CpGs were measured using the bisulphite pyrosequencing technology. RESULTS: Our results revealed that there was a significantly increased SSTR2 promoter methylation in LSCC tissues than in their adjacent non-cancerous tissues (adjusted P = 0.003). Breakdown analysis by age indicated that the significant association was mainly contributed by patients younger than 60 (adjusted P = 0.039) but not in patients older than 60. Meanwhile, the significant association was observed in the patients with moderately (adjusted P = 0.037) and well differentiated tissues (adjusted P = 0.028), as well as the patients with histological stage IV (adjusted P = 0.031). Multivariate Cox analysis suggested that SSTR2 promoter methylation was an independent prognostic factor of LSCC (HR = 1.127, 95 % CI = 1.034-1.228). CONCLUSIONS: In conclusion, SSTR2 promoter hypermethylation might be associated with the risk and progression of LSCC in males. FAU - Shen, Zhisen AU - Shen Z AD - Department of Otorhinolaryngology (Head and Neck Surgery), Lihuili Hospital of Ningbo University, Ningbo, Zhejiang, 315040, China. szs7216@163.com. FAU - Chen, Xiaoying AU - Chen X AD - Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, 315211, China. cxywzmc@163.com. FAU - Li, Qun AU - Li Q AD - Department of Otorhinolaryngology (Head and Neck Surgery), Lihuili Hospital of Ningbo University, Ningbo, Zhejiang, 315040, China. 704793521@qq.com. AD - Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, 315211, China. 704793521@qq.com. FAU - Zhou, Chongchang AU - Zhou C AD - Department of Otorhinolaryngology (Head and Neck Surgery), Lihuili Hospital of Ningbo University, Ningbo, Zhejiang, 315040, China. 1271692704@qq.com. AD - Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, 315211, China. 1271692704@qq.com. FAU - Li, Jinyun AU - Li J AD - Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, 315211, China. woodrenemma@163.com. FAU - Ye, Huadan AU - Ye H AD - Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, 315211, China. yehuadan@163.com. FAU - Duan, Shiwei AU - Duan S AD - Zhejiang Provincial Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang, 315211, China. duanshiwei@nbu.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20160122 PL - England TA - Diagn Pathol JT - Diagnostic pathology JID - 101251558 RN - 0 (Biomarkers, Tumor) RN - 0 (Receptors, Somatostatin) RN - 0 (SSTR2 protein, human) SB - IM MH - Adult MH - Age Factors MH - Aged MH - Aged, 80 and over MH - Biomarkers, Tumor/*genetics MH - Carcinoma, Squamous Cell/*genetics/pathology MH - Cell Differentiation MH - CpG Islands MH - *DNA Methylation MH - Disease Progression MH - Epigenesis, Genetic MH - Head and Neck Neoplasms/*genetics/pathology MH - Humans MH - Laryngeal Neoplasms/*genetics/pathology MH - Male MH - Middle Aged MH - Multivariate Analysis MH - Neoplasm Staging MH - *Promoter Regions, Genetic MH - Proportional Hazards Models MH - Receptors, Somatostatin/*genetics MH - Risk Factors MH - Squamous Cell Carcinoma of Head and Neck PMC - PMC4722764 EDAT- 2016/01/23 06:00 MHDA- 2016/10/12 06:00 PMCR- 2016/01/22 CRDT- 2016/01/23 06:00 PHST- 2015/11/04 00:00 [received] PHST- 2016/01/14 00:00 [accepted] PHST- 2016/01/23 06:00 [entrez] PHST- 2016/01/23 06:00 [pubmed] PHST- 2016/10/12 06:00 [medline] PHST- 2016/01/22 00:00 [pmc-release] AID - 10.1186/s13000-016-0461-y [pii] AID - 461 [pii] AID - 10.1186/s13000-016-0461-y [doi] PST - epublish SO - Diagn Pathol. 2016 Jan 22;11:10. doi: 10.1186/s13000-016-0461-y.