title: Selected immunohistochemical prognostic factors in endometrial cancer.
abstract: OBJECTIVE
  The objectives of this study were to assess the immunohistochemical expression of p53, bcl-2, c-erbB-2, Ki-67, estrogen (ER) and progesterone (PR) receptors, matrix metalloproteinase-7 and -26 (MMP-7 and MMP-26) in endometrial cancer patients and to assess the relation between steroid receptor positivity and other markers.
  
  
  METHODS
  Experimental prospective study.
  
  
  METHODS
  Department of Obstetrics and Gynecology, Department of Genetics, Department of Pathology, Palacký University Medical School and University Hospital Olomouc.
  
  
  METHODS
  We studied 144 cases of primary untreated endometrial carcinoma in which the p53, bcl-2, c-erbB-2, Ki-67, ER, PR, MMP-7, and MMP-26 antigens were investigated with the use of immunohistochemical methods. We evaluated the correlations among immunohistochemical staining and the age, International Federation of Gynecology and Obstetrics stage, grading, depth of invasion, and metastatic spread to lymph nodes.
  
  
  RESULTS
  Mean age was 65.7 years (range, 34-90 years). p53, bcl-2, c-erbB-2, Ki-67, ER, and PR were positive in 35 (24.3%), 100 (69.4%), 41 (28.4%), 65 (45.1%), 115 (79.8%), and 127 (88.1%) cases, respectively. Matrix metalloproteinases were evaluated in a group of 70 patients, wherein MMP-7 was positive in 33 patients (47.1%) and MMP-26 was positive in 40 patients (57.1%). The expression of MMP-7 decreased with higher patient age. p53 and Ki-67 overexpression was found to be related to poor differentiation. Immunostaining for bcl-2 correlated with the positivity of steroid receptors status, whereas immunostaining for c-erbB-2 correlated inversely with ER-positive group of cases.
  
  
  CONCLUSIONS
  The overexpression of p53 and Ki-67 seems to indicate a more malignant phenotype, whereas bcl-2 expression in dependence of steroid receptor positivity could contribute to the identification of high-risk tumors.
authors.affiliation: Department of Medical Genetics and Fetal Medicine, Palacký University Medical School, Olomouc, Czech Republic.
authors.forename: Ivana
authors.initials: I
authors.lastname: Markova
authors.forename: Milada
authors.initials: M
authors.lastname: Duskova
authors.forename: Marek
authors.initials: M
authors.lastname: Lubusky
authors.forename: Milan
authors.initials: M
authors.lastname: Kudela
authors.forename: Jana
authors.initials: J
authors.lastname: Zapletalová
authors.forename: Martin
authors.initials: M
authors.lastname: Procházka
authors.forename: Radovan
authors.initials: R
authors.lastname: Pilka
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D014408:Biomarkers, Tumor / Q000378:metabolism*; D002291:Carcinoma, Papillary / Q000378:metabolism* / Q000473:pathology; D018284:Cystadenocarcinoma, Serous / Q000378:metabolism* / Q000473:pathology; D016889:Endometrial Neoplasms / Q000378:metabolism* / Q000473:pathology; D005260:Female; D006801:Humans; D007124:Immunoenzyme Techniques; D019394:Ki-67 Antigen / Q000378:metabolism; D020783:Matrix Metalloproteinase 7 / Q000378:metabolism; D053505:Matrix Metalloproteinases, Secreted / Q000378:metabolism; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D011379:Prognosis; D011446:Prospective Studies; D019253:Proto-Oncogene Proteins c-bcl-2 / Q000378:metabolism; D018719:Erb-b2 Receptor Tyrosine Kinases / Q000378:metabolism; D011960:Receptors, Estrogen / Q000378:metabolism; D011980:Receptors, Progesterone / Q000378:metabolism; D016159:Tumor Suppressor Protein p53 / Q000378:metabolism
chemical_list: D014408:Biomarkers, Tumor; D019394:Ki-67 Antigen; D020783:Matrix Metalloproteinase 7; D053505:Matrix Metalloproteinases, Secreted; D019253:Proto-Oncogene Proteins c-bcl-2; D018719:Erb-b2 Receptor Tyrosine Kinases; D011960:Receptors, Estrogen; D011980:Receptors, Progesterone; D016159:Tumor Suppressor Protein p53; C495901:TP53 protein, human; C410599:MMP26 protein, human