PMID- 12637466 OWN - NLM STAT- MEDLINE DCOM- 20030410 LR - 20161102 IS - 0732-183X (Print) IS - 0732-183X (Linking) VI - 21 IP - 6 DP - 2003 Mar 15 TI - Invasion factors uPA/PAI-1 and HER2 status provide independent and complementary information on patient outcome in node-negative breast cancer. PG - 1022-8 AB - PURPOSE: The independent clinical relevance of invasion factors urokinase-type plasminogen activator (uPA)/PAI-1 and HER2 status was evaluated in lymph node-negative breast cancer patients (N = 118) without adjuvant systemic therapy after long-term follow-up of more than 10 years (median, 126 months). PATIENTS AND METHODS: Levels of uPA and its inhibitor PAI-1 were prospectively measured by enzyme-linked immunosorbent assay in primary tumor tissue extracts. HER2 gene amplification (HER2_AMP) was evaluated by fluorescence in situ hybridization (FISH; Ventana Medical Systems HER-2/neu probe; Tucson, AZ), and HER2 protein overexpression (HER2_EXP) was evaluated by immunohistochemistry (IHC; Oncogene Science antibody Ab-3; Cambridge, MA) on parallel-cut formalin-fixed paraffin-embedded tissue sections. RESULTS: uPA/PAI-1 was high (either one or both factors were high) in 44% of the tumors. HER2_AMP was detected by FISH in 33% of the patients, and HER2_EXP was found by IHC in 44% of the patients. In a multivariate analysis of established and tumor-biologic prognostic factors, uPA/PAI-1 was the only independent prognostic factor for disease-free survival ([DFS]; P <.001; relative risk [RR], 8.3; 95% confidence interval [CI], 3.4 to 20.4). Although HER2_AMP and HER2_EXP did not reach significance for DFS, they were significant for overall survival (OS), even in multivariate analysis (HER2_AMP: P =.004; RR, 3.7; 95% CI, 1.5 to 9.2; HER2_EXP: P =.009; RR, 3.4; 95% CI, 1.4 to 8.7). CONCLUSION: After long-term follow-up, uPA/PAI-1 levels in primary tumor tissue reliably and strongly indicate an aggressive course of disease in lymph node-negative breast cancer independent of HER2 status. The particular prognostic effect of HER2 status on OS may reflect its ability to predict resistance to systemic therapy. FAU - Zemzoum, Iris AU - Zemzoum I AD - Frauenklinik and Institut fur Allgemeine Pathologie und Pathologische Anatomie, Technische Universitat, and Gemeinschaftspraxis Lachnerstrasse 2 fur Pathologie und Zytologie, Munchen, Germany. FAU - Kates, Ronald E AU - Kates RE FAU - Ross, Jeffrey S AU - Ross JS FAU - Dettmar, Peer AU - Dettmar P FAU - Dutta, Moshumi AU - Dutta M FAU - Henrichs, Cordula AU - Henrichs C FAU - Yurdseven, Suna AU - Yurdseven S FAU - Hofler, Heinz AU - Hofler H FAU - Kiechle, Marion AU - Kiechle M FAU - Schmitt, Manfred AU - Schmitt M FAU - Harbeck, Nadia AU - Harbeck N LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - J Clin Oncol JT - Journal of clinical oncology : official journal of the American Society of Clinical Oncology JID - 8309333 RN - 0 (Biomarkers, Tumor) RN - 0 (Plasminogen Activator Inhibitor 1) RN - EC 2.7.10.1 (Receptor, ErbB-2) RN - EC 3.4.21.73 (Urokinase-Type Plasminogen Activator) SB - IM MH - Adult MH - Aged MH - Analysis of Variance MH - Biomarkers, Tumor/*analysis/immunology MH - Breast Neoplasms/*chemistry/mortality/pathology MH - Disease-Free Survival MH - Female MH - Follow-Up Studies MH - Humans MH - Immunohistochemistry MH - In Situ Hybridization, Fluorescence MH - Middle Aged MH - Neoplasm Invasiveness MH - Neoplasm Staging MH - Plasminogen Activator Inhibitor 1/*analysis/immunology MH - Predictive Value of Tests MH - Prognosis MH - Receptor, ErbB-2/*analysis MH - Sensitivity and Specificity MH - Survival Analysis MH - Up-Regulation MH - Urokinase-Type Plasminogen Activator/*analysis/immunology EDAT- 2003/03/15 04:00 MHDA- 2003/04/11 05:00 CRDT- 2003/03/15 04:00 PHST- 2003/03/15 04:00 [pubmed] PHST- 2003/04/11 05:00 [medline] PHST- 2003/03/15 04:00 [entrez] AID - 10.1200/JCO.2003.04.170 [doi] PST - ppublish SO - J Clin Oncol. 2003 Mar 15;21(6):1022-8. doi: 10.1200/JCO.2003.04.170.