title: The prognostic impact of hormone receptors and c-erbB-2 in pregnancy-associated breast cancer and their correlation with BRCA1 and cell cycle modulators.
abstract: A population-based series of 122 patients with pregnancy-associated breast carcinomas was histologically revised and the relationship between hormone receptors, c-erbB-2, BRCA1, p27, cyclin E, and cyclin D1 was studied. The 5-year overall survival was 41%; 70% had tumor size >20 mm; 72% had metastasized to regional lymph nodes; 95% were histologic grade II or III; 66% and 75% were negative for estrogen and progesterone receptor, respectively; and c-erbB-2 expression was high (44%). BRCA1 expression was reduced in 33% of the cases. The expression of p27, cyclin D1, and cyclin E was low, 11%, 9%, and 16%, respectively. Cyclin D1 was positively associated with the hormone receptors (p< or =0.01). In multivariate analysis, lymph node status, progesterone receptor, and c-erbB-2 were significant prognostic factors. In subdividing the group according to lymph node status, c-erbB-2 and progesterone receptor retained a prognostic significance in the node positive group only. In conclusion, pregnancy-associated breast carcinomas are aggressive tumors, with low expression of hormone receptors, BRCA1, p27, and cyclin E and D1, and high expression of c-erbB-2.
authors.affiliation: Department of Pathology, The Norwegian Radium Hospital, University of Oslo, Norway.
authors.forename: Wenche
authors.initials: W
authors.lastname: Reed
authors.forename: Berit
authors.initials: B
authors.lastname: Sandstad
authors.forename: Ruth
authors.initials: R
authors.lastname: Holm
authors.forename: Jahn M
authors.initials: JM
authors.lastname: Nesland
mesh_terms: D000328:Adult; D019313:BRCA1 Protein / Q000378:metabolism; D014408:Biomarkers, Tumor / Q000378:metabolism*; D001943:Breast Neoplasms / Q000378:metabolism* / Q000401:mortality / Q000473:pathology; D002277:Carcinoma / Q000378:metabolism* / Q000401:mortality / Q000473:pathology; D019938:Cyclin D1 / Q000378:metabolism; D019927:Cyclin E / Q000378:metabolism; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008207:Lymphatic Metastasis / Q000473:pathology; D011247:Pregnancy; D011252:Pregnancy Complications, Neoplastic / Q000378:metabolism* / Q000401:mortality / Q000473:pathology; D011379:Prognosis; D018809:Proliferating Cell Nuclear Antigen / Q000378:metabolism; D018719:Erb-b2 Receptor Tyrosine Kinases / Q000378:metabolism; D011960:Receptors, Estrogen / Q000378:metabolism; D011980:Receptors, Progesterone / Q000378:metabolism
chemical_list: D019313:BRCA1 Protein; D014408:Biomarkers, Tumor; D019938:Cyclin D1; D019927:Cyclin E; D018809:Proliferating Cell Nuclear Antigen; D018719:Erb-b2 Receptor Tyrosine Kinases; D011960:Receptors, Estrogen; D011980:Receptors, Progesterone; C413374:p27 antigen