title: An evaluation of the cell cycle-associated monoclonal antibody Ki-S1 as a prognostic factor in primary invasive adenocarcinoma of the breast.
abstract: Immunohistochemical staining with the novel monoclonal antibody Ki-S1, believed to recognize a cell cycle-associated antigen, was investigated in 110 cases of invasive carcinoma of the breast. Immunoreactivity indices were compared with disease-free interval (DFI), overall survival, and a series of other prognostic indicators. Significant positive correlations were found between the percentage of strongly positive immunoreactive nuclei and tumour size, histological grade and type, vascular invasion, and mitotic count. A significant negative correlation was found with age. No significant correlation was found with either DFI or overall survival. Although a correlation with mitotic count does imply that the Ki-S1 antigen is cell cycle-associated to some extent, Ki-S1 does not appear to be a useful prognostic factor in human breast carcinoma.
authors.affiliation: Department of Histopathology, City Hospital, Nottingham, U.K.
authors.forename: E S
authors.initials: ES
authors.lastname: Morris
authors.forename: C W
authors.initials: CW
authors.lastname: Elston
authors.forename: J A
authors.initials: JA
authors.lastname: Bell
authors.forename: M
authors.initials: M
authors.lastname: Galea
authors.forename: R W
authors.initials: RW
authors.lastname: Blamey
authors.forename: I O
authors.initials: IO
authors.lastname: Ellis
mesh_terms: D000230:Adenocarcinoma / Q000737:chemistry* / Q000401:mortality / Q000473:pathology; D000328:Adult; D000368:Aged; D000911:Antibodies, Monoclonal; D000951:Antigens, Neoplasm / Q000032:analysis*; D001943:Breast Neoplasms / Q000737:chemistry* / Q000401:mortality / Q000473:pathology; D004250:DNA Topoisomerases, Type II; D004268:DNA-Binding Proteins; D018572:Disease-Free Survival; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008875:Middle Aged; D008938:Mitosis; D009361:Neoplasm Invasiveness; D009687:Nuclear Proteins / Q000032:analysis*; D011379:Prognosis; D015996:Survival Rate
chemical_list: D000911:Antibodies, Monoclonal; D000951:Antigens, Neoplasm; D004268:DNA-Binding Proteins; D009687:Nuclear Proteins; D004250:DNA Topoisomerases, Type II