PMID- 28584720 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20200929 IS - 2167-8359 (Print) IS - 2167-8359 (Electronic) IS - 2167-8359 (Linking) VI - 5 DP - 2017 TI - Clinical impact of human papillomavirus in laryngeal squamous cell carcinoma: a retrospective study. PG - e3395 LID - 10.7717/peerj.3395 [doi] LID - e3395 AB - OBJECTIVES: The purpose of this study is to determine the prevalence and clinical impact of human papillomavirus (HPV) related laryngeal squamous cell carcinoma (LSCC). METHODS: A total of 106 LSCC patients who underwent primary surgical resection with or without adjuvant radiotherapy/chemoradiotherapy were enrolled retrospectively. Tumors collected from paraffin-embedded samples were used for HPV detection by polymerase chain reaction and in situ hybridization technique. Clinicopathological parameters were recorded for analysis. RESULTS: The prevalence of HPV in patients with LSCC was 13.2% in our series and 12 out of 14 (85.7%) HPV-positive tumors were HPV-16. The patients with HPV-positive tumors were older (p = 0.042), less local/regional recurrence (p = 0.037) and non-smoker (p = 0.068). There was no significant difference in the 5-year overall survival (OS) (p = 0.8056) between HPV-positive and -negative tumors. The patients with HPV-positive tumors had a better 5-year disease-specific survival (DSS) (100% vs. 84.8%, p = 0.1485), although the difference did not reach statistical significance. However, the local/regional control rate was significantly better in HPV-positive tumors than in HPV-negative tumors (100% vs. 75%, p = 0.0494). CONCLUSIONS: A low prevalence of HPV infection in our series suggests that HPV is not a major cause of LSCC. However, a 100% local/regional control rate and DSS were observed in HPV-positive tumors. This finding suggests a different tumor behavior between HPV-positive and HPV-negative LSCC. Further research with a larger sample size is necessary to confirm our observations. FAU - Chen, Wei-Chih AU - Chen WC AD - Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan. AD - Head and Neck Oncologic Group, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan. FAU - Chuang, Hui-Ching AU - Chuang HC AD - Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan. AD - Head and Neck Oncologic Group, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan. FAU - Lin, Yu-Tsai AU - Lin YT AD - Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan. AD - Head and Neck Oncologic Group, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan. FAU - Huang, Chao-Cheng AU - Huang CC AD - Head and Neck Oncologic Group, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan. AD - Department of Pathology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan. FAU - Chien, Chih-Yen AU - Chien CY AD - Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan. AD - Head and Neck Oncologic Group, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan. LA - eng PT - Journal Article DEP - 20170530 PL - United States TA - PeerJ JT - PeerJ JID - 101603425 PMC - PMC5452968 OTO - NOTNLM OT - HPV OT - Laryngeal cancer OT - Prevalence OT - Recurrence OT - Survival COIS- The authors declare there are no competing interests. EDAT- 2017/06/07 06:00 MHDA- 2017/06/07 06:01 PMCR- 2017/05/30 CRDT- 2017/06/07 06:00 PHST- 2017/03/09 00:00 [received] PHST- 2017/05/09 00:00 [accepted] PHST- 2017/06/07 06:00 [entrez] PHST- 2017/06/07 06:00 [pubmed] PHST- 2017/06/07 06:01 [medline] PHST- 2017/05/30 00:00 [pmc-release] AID - 3395 [pii] AID - 10.7717/peerj.3395 [doi] PST - epublish SO - PeerJ. 2017 May 30;5:e3395. doi: 10.7717/peerj.3395. eCollection 2017.