RT Journal Article T1 Functional proteomics outlines the complexity of breast cancer molecular subtypes A1 Gamez Pozo, A. A1 Trilla Fuentes, L. A1 Berges Soria, J. A1 Selevsek, N. A1 López Vacas, R. A1 Díaz Almiron, M. A1 Nanni, , P. A1 Arevalillo, J. M. A1 Navarro, H. A1 Grossmann, J. A1 Moreno, F. G. A1 Rioja, R. G. A1 Prado Vazquez, G. A1 Zapater Moros, A. A1 Main Yaque, Paloma A1 Feliu, J. A1 Del Prado, P. A1 Zamora, P. A1 Ciruelos Gil, Eva María A1 Espinosa, E. A1 Vara, J. A.F. AB Breast cancer is a heterogeneous disease comprising a variety of entities with various genetic backgrounds. Estrogen receptor-positive, human epidermal growth factor receptor 2-negative tumors typically have a favorable outcome; however, some patients eventually relapse, which suggests some heterogeneity within this category. In the present study, we used proteomics and miRNA profiling techniques to characterize a set of 102 either estrogen receptor-positive (ER+)/progesterone receptorpositive (PR+) or triple-negative formalin-fixed, paraffin-embedded breast tumors. Protein expressionbased probabilistic graphical models and flux balance analyses revealed that some ER+/PR+ samples had a protein expression profile similar to that of triple-negative samples and had a clinical outcome similar to those with triple-negative disease. This probabilistic graphical model-based classification had prognostic value in patients with luminal A breast cancer. This prognostic information was independent of that provided by standard genomic tests for breast cancer, such as MammaPrint, OncoType Dx and the 8-gene Score. PB Nature publishing group SN 2045-2322 YR 2017 FD 2017 LK https://hdl.handle.net/20.500.14352/18103 UL https://hdl.handle.net/20.500.14352/18103 LA eng NO Gámez-Pozo A, Trilla-Fuertes L, Berges-Soria J, Selevsek N, López-Vacas R, Díaz-Almirón M, et al. Functional proteomics outlines the complexity of breast cancer molecular subtypes. Sci Rep 2017;7:10100. https://doi.org/10.1038/s41598-017-10493-w. NO Unión Europea. FP7 NO Instituto de Salud Carlos III NO Ministerio de Economía, Comercio y Empresa (España) DS Docta Complutense RD 14 may 2025