title: Immunohistochemical detection of c-erbB-2 oncoprotein in patients with breast cancer.
abstract: Using a polyclonal antibody against the c-erbB-2 gene product, an immunohistochemical study on the expression of c-erbB-2 oncoprotein was performed in routine formalin-fixed, paraffin-embedded tissue sections from 119 patients with primary breast cancer. Overexpression of c-erbB-2 protein was detected in 35 cases (29%). There was a strongly negative association between c-erbB-2 protein overexpression and estrogen receptor status (p < 0.001). Expression of c-erbB-2 protein was found to be related to clinical stage and tumor size (p < 0.05) but not to the number of involved nodes or age of patients at diagnosis. In addition, this study demonstrated that the c-erbB-2 protein over-expression was an effective independent prognostic indicator in patients with breast cancer.
authors.affiliation: National Cancer Institute, Bangkok, Thailand.
authors.forename: S
authors.initials: S
authors.lastname: Chariyalertsak
authors.forename: S
authors.initials: S
authors.lastname: Chariyalertsak
authors.forename: A
authors.initials: A
authors.lastname: Cheirsilpa
authors.forename: K
authors.initials: K
authors.lastname: Sugano
authors.forename: H
authors.initials: H
authors.lastname: Ohkura
mesh_terms: D000328:Adult; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D014408:Biomarkers, Tumor / Q000032:analysis*; D001943:Breast Neoplasms / Q000737:chemistry* / Q000188:drug therapy / Q000473:pathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry / Q000379:methods*; D008875:Middle Aged; D018719:Erb-b2 Receptor Tyrosine Kinases / Q000032:analysis*; D012189:Retrospective Studies
chemical_list: D014408:Biomarkers, Tumor; D018719:Erb-b2 Receptor Tyrosine Kinases