title: DNA ploidy and pS2 protein expression in breast cancer.
abstract: The DNA content of ductal breast carcinomas of varying histological grade was measured using static image cytometry and correlated with pS2 expression in the tumour cells. Our study was performed on imprint of surgical biopsies of 60 women with ductal breast cancer. A statistically significant difference was observed between pS2+ expression and grade of malignancy (P < 0.001). The percentage of euploid tumours significantly decreased from grade I to grade II to grade III (P = 0.01). The percentage of aneuploid tumours increased from pS2+ to pS2- breast tumours (P < 0.001). These findings may be indicative of pS2 and DNA ploidy alterations and tumour aggressiveness.
authors.affiliation: Department of Clinical Cytology and Cytogenetics, Medical School, Athens University, Greece.
authors.forename: A
authors.initials: A
authors.lastname: Ioakim-Liossi
authors.forename: P
authors.initials: P
authors.lastname: Karakitsos
authors.forename: K
authors.initials: K
authors.lastname: Aroni
authors.forename: C
authors.initials: C
authors.lastname: Markopoulos
authors.forename: K
authors.initials: K
authors.lastname: Delivelioti
authors.forename: J
authors.initials: J
authors.lastname: Gogas
authors.forename: K
authors.initials: K
authors.lastname: Kyrkou
mesh_terms: D000782:Aneuploidy; D001940:Breast / Q000737:chemistry / Q000473:pathology; D001943:Breast Neoplasms / Q000737:chemistry* / Q000235:genetics / Q000473:pathology; D018270:Carcinoma, Ductal, Breast / Q000737:chemistry* / Q000235:genetics / Q000473:pathology; D004273:DNA, Neoplasm / Q000032:analysis* / Q000235:genetics; D005260:Female; D015972:Gene Expression Regulation, Neoplastic; D006801:Humans; D019044:Image Cytometry; D007150:Immunohistochemistry; D011003:Ploidies; D011446:Prospective Studies; D011506:Proteins / Q000032:analysis* / Q000235:genetics; D000071163:Trefoil Factor-1; D025521:Tumor Suppressor Proteins
chemical_list: D004273:DNA, Neoplasm; D011506:Proteins; C051838:TFF1 protein, human; D000071163:Trefoil Factor-1; D025521:Tumor Suppressor Proteins