PMID- 31453348 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220410 IS - 2378-8038 (Print) IS - 2378-8038 (Electronic) IS - 2378-8038 (Linking) VI - 4 IP - 4 DP - 2019 Aug TI - PTEN Is Associated With Worse Local Control in Early Stage Supraglottic Laryngeal Cancer Treated With Radiotherapy. PG - 399-404 LID - 10.1002/lio2.272 [doi] AB - OBJECTIVES: The aim of this study was to establish the prognostic value of the epidermal growth factor receptor (EGFR) and phosphatase and tensin homolog deleted on chromosome 10 (PTEN) expression on local control in patients with early stage supraglottic laryngeal squamous cell carcinoma (LSCC) treated with radiotherapy only. STUDY DESIGN: Retrospective cohort study. METHODS: Immunohistochemical staining for EGFR and PTEN was performed on pretreatment biopsies of a selected well-defined homogeneous group of 52 patients with T1-T2 supraglottic LSCC treated with radiotherapy between 1990 and 2008. Kaplan-Meier analysis and univariate and multivariate Cox Regression analyses were performed to correlate clinical data and expression levels of EGFR and PTEN with local control. RESULTS: Kaplan-Meier survival analysis and Cox Regression analysis showed a significant association between PTEN expression and local control (hazard ratio [HR] = 3.26, 95% confidence interval [CI] = 1.14-9.33, P = .027) and between lymph node status and local control (HR = 3.60, 95% CI = 1.26-10.31, P = .017). Both were independent prognostic factors in a multivariate analysis (HR = 3.28, 95% CI = 1.14-9.39, P = .027 and HR = 3.62, 95% CI = 1.26-10.37, P = .017, respectively). There was no significant association between EGFR expression and local control (HR = 1.32, 95% CI = 1.17-10.14, P = .79). CONCLUSION: This study showed an association between both high PTEN expression and the presence of lymph node metastasis and deteriorated local control in early stage supraglottic LSCC treated with radiotherapy. LEVEL OF EVIDENCE: NA. FAU - Bruine de Bruin, Leonie AU - Bruine de Bruin L AUID- ORCID: 0000-0003-1240-9236 AD - Department of Otorhinolaryngology/Head and Neck Surgery University Medical Center Groningen, University of Groningen Groningen The Netherlands. AD - Graduate School of Medical Sciences (Groningen University Institute for Drug Exploration) University of Groningen Groningen The Netherlands. FAU - Wachters, Jan E AU - Wachters JE AD - Department of Otorhinolaryngology/Head and Neck Surgery University Medical Center Groningen, University of Groningen Groningen The Netherlands. AD - Graduate School of Medical Sciences (Groningen University Institute for Drug Exploration) University of Groningen Groningen The Netherlands. FAU - Schrijvers, Michiel L AU - Schrijvers ML AD - Department of Otorhinolaryngology/Head and Neck Surgery University Medical Center Groningen, University of Groningen Groningen The Netherlands. AD - Graduate School of Medical Sciences (Groningen University Institute for Drug Exploration) University of Groningen Groningen The Netherlands. FAU - Slagter-Menkema, Lorian AU - Slagter-Menkema L AD - Department of Otorhinolaryngology/Head and Neck Surgery University Medical Center Groningen, University of Groningen Groningen The Netherlands. AD - Graduate School of Medical Sciences (Groningen University Institute for Drug Exploration) University of Groningen Groningen The Netherlands. AD - Department of Pathology and Medical Biology University Medical Center Groningen, University of Groningen Groningen The Netherlands. FAU - Mastik, Mirjam F AU - Mastik MF AD - Graduate School of Medical Sciences (Groningen University Institute for Drug Exploration) University of Groningen Groningen The Netherlands. AD - Department of Pathology and Medical Biology University Medical Center Groningen, University of Groningen Groningen The Netherlands. FAU - Langendijk, Johannes A AU - Langendijk JA AD - Graduate School of Medical Sciences (Groningen University Institute for Drug Exploration) University of Groningen Groningen The Netherlands. AD - Department of Radiation Oncology University Medical Center Groningen, University of Groningen Groningen The Netherlands. FAU - van der Wal, Jacqueline E AU - van der Wal JE AD - Department of Pathology and Medical Biology University Medical Center Groningen, University of Groningen Groningen The Netherlands. FAU - Schuuring, Ed AU - Schuuring E AD - Graduate School of Medical Sciences (Groningen University Institute for Drug Exploration) University of Groningen Groningen The Netherlands. AD - Department of Pathology and Medical Biology University Medical Center Groningen, University of Groningen Groningen The Netherlands. FAU - van der Laan, Bernard F A M AU - van der Laan BFAM AD - Department of Otorhinolaryngology/Head and Neck Surgery University Medical Center Groningen, University of Groningen Groningen The Netherlands. AD - Graduate School of Medical Sciences (Groningen University Institute for Drug Exploration) University of Groningen Groningen The Netherlands. LA - eng PT - Journal Article DEP - 20190612 PL - United States TA - Laryngoscope Investig Otolaryngol JT - Laryngoscope investigative otolaryngology JID - 101684963 PMC - PMC6703112 OTO - NOTNLM OT - EGFR OT - PTEN OT - laryngeal squamous cell carcinoma OT - local control OT - radiotherapy EDAT- 2019/08/28 06:00 MHDA- 2019/08/28 06:01 PMCR- 2019/06/12 CRDT- 2019/08/28 06:00 PHST- 2019/03/04 00:00 [received] PHST- 2019/04/08 00:00 [revised] PHST- 2019/04/16 00:00 [accepted] PHST- 2019/08/28 06:00 [entrez] PHST- 2019/08/28 06:00 [pubmed] PHST- 2019/08/28 06:01 [medline] PHST- 2019/06/12 00:00 [pmc-release] AID - LIO2272 [pii] AID - 10.1002/lio2.272 [doi] PST - epublish SO - Laryngoscope Investig Otolaryngol. 2019 Jun 12;4(4):399-404. doi: 10.1002/lio2.272. eCollection 2019 Aug.