title: Prognostic value of immunohistochemical estimation of CD24 and Ki67 expression in cisplatin and paclitaxel treated ovarian carcinoma patients.
abstract: CD24 is a small membranous protein which may participate in invasion of tumor cells. Present study aimed at evaluation of prognostic significance linked to immunohistochemical demonstration of CD24 expression and the proliferation index, Ki67 expression in ovarian cancers. The immunohistochemical reactions with monoclonal CD24- and Ki67-specific antibodies were performed in paraffin sections originating from 30 patients with ovarian cancer treated using cisplatin and paclitaxel. Results of the reactions and analysis of the clinical course of the patients were subjected to statistical analysis. Cases with cytoplasmic-membranous expression of CD24 (CD24c-m) were found to exhibit significantly shorter overall survival time (P = 0.0002) and progression-free period (P = 0.0005). Cases with membranous expression of CD24 (CD24m) manifested a longer overall survival time (P = 0.022). No relationship was disclosed between expression of Ki67 on the one hand and survival time and CD24 expression on the other. As documented using chi square test, expression of CD24c-m predisposed to relapses (P = 0.012), progression (P = 0.0362) and to death (P = 0.0034). Deaths were encountered significantly less frequently in cases with CD24m expression (P = 0.0465). The studies demonstrated that CD24c-m represented a strongly unfavorable prognostic indicator. The antigen represents an interesting target in the search for novel therapeutic methods. The more aggressive course of cases with CD24c-m expression was not linked to more intense proliferation of the tumor cells.
authors.affiliation: Department of Histology and Embryology, University School of Medicine, Wrocław. pawel.surowiak@interia.pl
authors.forename: Paweł
authors.initials: P
authors.lastname: Surowiak
authors.forename: Verena
authors.initials: V
authors.lastname: Materna
authors.forename: Katarzyna
authors.initials: K
authors.lastname: Kłak
authors.forename: Marek
authors.initials: M
authors.lastname: Spaczyński
authors.forename: Manfred
authors.initials: M
authors.lastname: Dietel
authors.forename: Glen
authors.initials: G
authors.lastname: Kristiansen
authors.forename: Hermann
authors.initials: H
authors.lastname: Lage
authors.forename: Maciej
authors.initials: M
authors.lastname: Zabel
mesh_terms: D015703:Antigens, CD / Q000378:metabolism*; D000970:Antineoplastic Agents / Q000627:therapeutic use*; D014408:Biomarkers, Tumor / Q000032:analysis*; D051927:CD24 Antigen; D002945:Cisplatin / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D019394:Ki-67 Antigen / Q000378:metabolism; D008562:Membrane Glycoproteins / Q000378:metabolism*; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000188:drug therapy* / Q000401:mortality; D017239:Paclitaxel / Q000627:therapeutic use*; D011379:Prognosis
chemical_list: D015703:Antigens, CD; D000970:Antineoplastic Agents; D014408:Biomarkers, Tumor; D051927:CD24 Antigen; C497889:CD24 protein, human; D019394:Ki-67 Antigen; D008562:Membrane Glycoproteins; D017239:Paclitaxel; D002945:Cisplatin