PMID- 20135347 OWN - NLM STAT- MEDLINE DCOM- 20100616 LR - 20220316 IS - 1573-7217 (Electronic) IS - 0167-6806 (Linking) VI - 120 IP - 2 DP - 2010 Apr TI - Epidermal growth factor receptor and vascular endothelial growth factor receptor 2 are specific biomarkers in triple-negative breast cancer. Results from a controlled randomized trial with long-term follow-up. PG - 491-8 LID - 10.1007/s10549-010-0758-6 [doi] AB - Triple-negative breast cancer (TNB) has poor prognosis and moreover patients with TNB do not benefit from established targeted drugs with endocrine therapy or trastuzumab. The aim of the study was to analyze the prevalence of candidate biomarkers in tumors from patients with TNB. Tissue microarrays were prepared from primary tumors from premenopausal breast cancer patients (500/564) randomized to adjuvant tamoxifen or no adjuvant treatment. Immunohistochemical (IHC) staining included ER, PR, HER2, epidermal receptor growth factor (EGFR), vascular endothelial growth factor A (VEGF-A), and vascular endothelial growth factor receptor 2 (VEGFR2). EGFR and HER2 gene copy number was defined by fluorescence in situ hybridization (FISH). All patients were included in the descriptive analysis, but only untreated patients in the survival analysis. TNB was diagnosed in 96 patients and correlated significantly to low age, Nottingham histological grade (NHG) III, high Ki67-index, T2 tumors, node negativity, EGFR positivity, increased EGFR gene copy number and high VEGFR2 expression. TNB was an independent prognostic factor for decreased 5-year breast cancer specific survival (BCSS) (HR 2.0 (95% CI 1.1-3.6), P = 0.01), but not for 10-year BCSS. High VEGFR2 expression was significantly correlated to decreased BCSS in TNB patients. TNB was associated with decreased BCSS and clinicopathological characteristics of an aggressive tumor type. High VEGFR2 expression, EGFR expression, and EGFR gene copy number were significantly correlated to TNB, supporting their role as putative candidate biomarkers for selection of targeted therapy in TNB. FAU - Ryden, Lisa AU - Ryden L AD - Department of Surgery, Institution of Clinical Sciences, Lund University Hospital, SE 221 85, Lund, Sweden. Lisa.Ryden@med.lu.se FAU - Jirstrom, Karin AU - Jirstrom K FAU - Haglund, Monica AU - Haglund M FAU - Stal, Olle AU - Stal O FAU - Ferno, Marten AU - Ferno M LA - eng PT - Journal Article PT - Multicenter Study PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20100205 PL - Netherlands TA - Breast Cancer Res Treat JT - Breast cancer research and treatment JID - 8111104 RN - 0 (Antineoplastic Agents, Hormonal) RN - 0 (Biomarkers, Tumor) RN - 0 (Receptors, Estrogen) RN - 0 (Receptors, Progesterone) RN - 094ZI81Y45 (Tamoxifen) RN - EC 2.7.10.1 (ErbB Receptors) RN - EC 2.7.10.1 (Receptor, ErbB-2) RN - EC 2.7.10.1 (Vascular Endothelial Growth Factor Receptor-2) SB - IM MH - Adult MH - Antineoplastic Agents, Hormonal/therapeutic use MH - Biomarkers, Tumor/*genetics MH - Breast Neoplasms/drug therapy/*genetics/metabolism MH - Chemotherapy, Adjuvant MH - ErbB Receptors/biosynthesis/*genetics MH - Female MH - Follow-Up Studies MH - Gene Dosage MH - Humans MH - Immunohistochemistry MH - In Situ Hybridization, Fluorescence MH - Kaplan-Meier Estimate MH - Middle Aged MH - Neoplasm Staging MH - Receptor, ErbB-2/biosynthesis/genetics MH - Receptors, Estrogen/biosynthesis/genetics MH - Receptors, Progesterone/biosynthesis/genetics MH - Tamoxifen/therapeutic use MH - Tissue Array Analysis MH - Vascular Endothelial Growth Factor Receptor-2/biosynthesis/*genetics EDAT- 2010/02/06 06:00 MHDA- 2010/06/17 06:00 CRDT- 2010/02/06 06:00 PHST- 2009/10/08 00:00 [received] PHST- 2010/01/19 00:00 [accepted] PHST- 2010/02/06 06:00 [entrez] PHST- 2010/02/06 06:00 [pubmed] PHST- 2010/06/17 06:00 [medline] AID - 10.1007/s10549-010-0758-6 [doi] PST - ppublish SO - Breast Cancer Res Treat. 2010 Apr;120(2):491-8. doi: 10.1007/s10549-010-0758-6. Epub 2010 Feb 5.