title: p53 staining as a prognostic indicator in endometrial carcinoma.
abstract: OBJECTIVE
  To investigate p53 expression in endometrial cancer and its significance as a prognostic indicator.
  
  
  METHODS
  Thirty-five consecutively surgically treated patients with endometrial cancer had their p53 expression studied by immunoperoxidase staining and quantified by lighted microscopic evaluation of the staining pattern. The determination of mean percentage of p53 expression was compared to prognostic indicators of endometrial cancer.
  
  
  RESULTS
  p53 staining was detected in 20 of the 35 cases of endometrial carcinoma. Eleven of the 21 endometrioid tumors stained positive, while 9 out of 14 tumors with more aggressive histology stained positive for p53. If the grade I and II patients were taken into account as a whole, there was a statistically significant correlation (p<0.001) between the grade I and II patients and the grade III patients. The difference was statistically significant between stage I and III (p<0.05). The difference between lymphovascular space invasion and no lymphovascular invasion and p53 positivity was statistically significant (p<0.05).
  
  
  CONCLUSIONS
  p53 expression is more common in more aggressive histologic subtypes than in endometrioid adenocarcinomas. Strong expression of p53 correlates with advanced stage and high grade and is detected more frequently in endometrial cancers with lymphovascular invasion.
authors.affiliation: Department of Gynecology and Obstetrics, Ege University Medical Faculty, Izmir, Turkey.
authors.forename: A A
authors.initials: AA
authors.lastname: Ozsaran
authors.forename: S
authors.initials: S
authors.lastname: Türker
authors.forename: Y
authors.initials: Y
authors.lastname: Dikmen
authors.forename: Y
authors.initials: Y
authors.lastname: Erhan
authors.forename: I
authors.initials: I
authors.lastname: Itil
authors.forename: C
authors.initials: C
authors.lastname: Terek
authors.forename: N
authors.initials: N
authors.lastname: Ozdemir
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis* / Q000235:genetics / Q000601:surgery; D000328:Adult; D000368:Aged; D014408:Biomarkers, Tumor / Q000032:analysis*; D018196:Carcinoma, Adenosquamous / Q000175:diagnosis* / Q000235:genetics / Q000601:surgery; D016889:Endometrial Neoplasms / Q000175:diagnosis* / Q000235:genetics / Q000601:surgery; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D016158:Genes, p53; D006801:Humans; D008875:Middle Aged; D011379:Prognosis; D016159:Tumor Suppressor Protein p53 / Q000032:analysis*
chemical_list: D014408:Biomarkers, Tumor; D016159:Tumor Suppressor Protein p53