title: p53, epidermal growth factor receptor and proliferating cell nuclear antigen in laryngeal squamous cell carcinoma are not predictive markers for the effect of adjuvant radiotherapy.
abstract: CONCLUSIONS
  These data indicate that the expression of p53, epidermal growth factor receptor (EGFR) or proliferating cell nuclear antigen (PCNA) is not a reliable predictor of the prognosis or the effect of adjuvant radiotherapy in patients with laryngeal squamous cell carcinoma (LSCC).
  
  
  OBJECTIVE
  The aim of this study was to investigate the prognostic significance of p53, EGFR, and PCNA in LSCC and to assess the relationships between the expression of these molecular markers and the effect of adjuvant radiotherapy.
  
  
  METHODS
  We retrospectively reviewed the expression of these molecular markers in 75 patients with LSCC.
  
  
  RESULTS
  None of the expressions of these molecular markers was associated with disease-free survival or overall survival and no significant correlations were found between them and the effect of adjuvant radiotherapy. Also, they were not associated with each other.
authors.affiliation: Department of Otolaryngology, 2nd Affiliated Hospital, School of Medicine, Zhejiang University, Jie-Fang Road 88, Hangzhou,Zhejiang, China.
authors.forename: Hua
authors.initials: H
authors.lastname: Jiang
authors.forename: Bei-Bei
authors.initials: BB
authors.lastname: Yang
mesh_terms: D000368:Aged; D014408:Biomarkers, Tumor / Q000032:analysis*; D002294:Carcinoma, Squamous Cell / Q000401:mortality / Q000473:pathology / Q000532:radiotherapy*; D002462:Cell Membrane / Q000473:pathology; D002467:Cell Nucleus / Q000473:pathology; D003131:Combined Modality Therapy; D018572:Disease-Free Survival; D066246:ErbB Receptors / Q000032:analysis*; D005260:Female; D006801:Humans; D007822:Laryngeal Neoplasms / Q000401:mortality / Q000473:pathology / Q000532:radiotherapy*; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D011379:Prognosis; D018809:Proliferating Cell Nuclear Antigen / Q000032:analysis*; D018714:Radiotherapy, Adjuvant; D012189:Retrospective Studies; D016159:Tumor Suppressor Protein p53 / Q000032:analysis*
chemical_list: D014408:Biomarkers, Tumor; D018809:Proliferating Cell Nuclear Antigen; D016159:Tumor Suppressor Protein p53; D066246:ErbB Receptors