title: Evaluation of prognostic factors following flow-cytometric DNA analysis after cytokeratin labelling: I. Breast cancer.
abstract: In gynecologic oncology valid prognostic factors are necessary to estimate the course of disease and to define biologically similar subgroups for analysis of therapeutic efficacy. The presented study is a prospective study concerning prognostic significance of DNA ploidy and S-phase fraction in breast cancer following enrichment of tumor cells by cytokeratin labelling. Epithelial cells were labeled by FITC-conjugated cytokeratin antibody (CK 5, 6, 8, and CK 17) prior to flow cytometric cell cycle analysis in 327 fresh specimens of primary breast cancer. Univariate analysis in breast cancer detected the prognostic significance of DNA-ploidy, S-phase fraction and CV (coefficient of variation) of G(0)G(1)-peak of tumor cells for clinical outcome, especially for nodal-negative patients. Multivariate analysis could not confirm prognostic evidence of DNA-ploidy and S-phase fraction. In conclusion, in breast cancer no clinical significance for determination of DNA-parameters was found.
authors.affiliation: Department of Obstetrics and Gynecology, University of Essen, Hufelandstr. 55, D-45122 Essen, Germany. pauline.wimberger@med.uni-essen.de
authors.forename: Pauline
authors.initials: P
authors.lastname: Wimberger
authors.forename: Peter
authors.initials: P
authors.lastname: Hillemanns
authors.forename: Thomas
authors.initials: T
authors.lastname: Kapsner
authors.forename: Hermann
authors.initials: H
authors.lastname: Hepp
authors.forename: Rainer
authors.initials: R
authors.lastname: Kimmig
mesh_terms: D001943:Breast Neoplasms / Q000737:chemistry / Q000401:mortality / Q000473:pathology*; D018270:Carcinoma, Ductal, Breast / Q000737:chemistry / Q000401:mortality / Q000473:pathology*; D018275:Carcinoma, Lobular / Q000737:chemistry / Q000401:mortality / Q000473:pathology; D004273:DNA, Neoplasm / Q000032:analysis*; D005069:Evaluation Studies as Topic; D005260:Female; D005434:Flow Cytometry / Q000379:methods*; D006367:HeLa Cells; D006801:Humans; D007633:Keratins / Q000032:analysis*; D008198:Lymph Nodes / Q000473:pathology; D015999:Multivariate Analysis; D009364:Neoplasm Recurrence, Local / Q000737:chemistry / Q000401:mortality / Q000473:pathology; D011003:Ploidies; D011237:Predictive Value of Tests; D011379:Prognosis; D016196:S Phase
chemical_list: D004273:DNA, Neoplasm; D007633:Keratins