title: Correlated expression of erbB-3 with hormone receptor expression and favorable clinical outcome in invasive ductal carcinomas of the breast.
abstract: The prognostic impact of epidermal growth factor receptor (EGFR) family members in breast carcinoma was evaluated through the analysis of 378 cases of invasive ductal carcinoma to determine the relationship between EGFR family members and clinical outcome. It was found that 13.8% of the cases were positive for erbB-3. Expression of erbB-3 was inversely correlated with EGFR and erbB-4 expression (P = .012 and P = .046). Expression of erbB-3 was correlated with positive estrogen and progesterone receptor status and inversely correlated with histologic grade. Expression of erbB-3 was correlated with longer disease-free survival (DFS; P = .028). Within the erbB-3-expressing group, there was a tendency for the coexpressing group to have shorter DFS compared with the single-expressing group. This study revealed that erbB-3 expression was associated with better prognosis. In an era of personalized targeted therapy, erbB-3 expression and its coexpressive pattern with other EGFR family members could be an important determinant for therapeutic plans for breast cancer treatment.
authors.affiliation: Department of Pathology, Korea University Guro Hospital and Korea Lung Tissue Bank, Seoul, Korea.
authors.forename: Youngseok
authors.initials: Y
authors.lastname: Lee
authors.forename: Sujin
authors.initials: S
authors.lastname: Cho
authors.forename: Jae Hong
authors.initials: JH
authors.lastname: Seo
authors.forename: Bong Kyung
authors.initials: BK
authors.lastname: Shin
authors.forename: Han Kyeom
authors.initials: HK
authors.lastname: Kim
authors.forename: Insun
authors.initials: I
authors.lastname: Kim
authors.forename: Aeree
authors.initials: A
authors.lastname: Kim
mesh_terms: D014408:Biomarkers, Tumor / Q000378:metabolism; D001943:Breast Neoplasms / Q000378:metabolism* / Q000401:mortality / Q000473:pathology; D018270:Carcinoma, Ductal, Breast / Q000378:metabolism* / Q000401:mortality / Q000556:secondary; D018572:Disease-Free Survival; D066246:ErbB Receptors / Q000378:metabolism*; D005260:Female; D006801:Humans; D053208:Kaplan-Meier Estimate; D008198:Lymph Nodes / Q000473:pathology; D008875:Middle Aged; D009367:Neoplasm Staging; D020893:Receptor, ErbB-3 / Q000378:metabolism*; D011960:Receptors, Estrogen / Q000378:metabolism*; D011980:Receptors, Progesterone / Q000378:metabolism*; D015996:Survival Rate
chemical_list: D014408:Biomarkers, Tumor; D011960:Receptors, Estrogen; D011980:Receptors, Progesterone; C512478:EGFR protein, human; D066246:ErbB Receptors; D020893:Receptor, ErbB-3