%0 Journal Article %A Rodriguez, Marta %A Alonso-Alonso, Ruth %A Tomas-Roca, Laura %A Rodriguez-Pinilla, Socorro M. %A Manso-Alonso, Rebeca %A Cereceda, Laura %A Borregon, Jennifer %A Villaescusa, Teresa %A Cordoba, Raul %A Sanchez-Beato, Margarita %A Fernandez-Miranda, Ismael %A Betancor, Isabel %A Barcena, Carmen %A Garcia, Juan F. %A Mollejo, Manuela %A Garcia-Cosio, Monica %A Martin-Acosta, Paloma %A Climent, Fina %A Caballero, Dolores %A de la Fuente, Lorena %A Minguez, Pablo %A Kessler, Linda %A Scholz, Catherine %A Gualberto, Antonio %A Mondejar, Rufino %A Piris, Miguel A. %T Peripheral T-cell lymphoma: molecular profiling recognizes subclasses and identifies prognostic markers %D 2021 %@ 2473-9529 %U https://hdl.handle.net/10668/25153 %X Peripheral T-cell lymphoma (PTCL) is a clinically aggressive disease, with a poor response to therapy and a low overall survival rate of approximately 30% after 5 years. We have analyzed a series of 105 cases with a diagnosis of PTCL using a customized NanoString platform (NanoString Technologies, Seattle, WA) that includes 208 genes associated with T-cell differentiation, oncogenes and tumor suppressor genes, deregulated pathways, and stromal cell subpopulations. A comparative analysis of the various histological types of PTCL (angioimmunoblastic T-cell lymphoma [AITL]; PTCL with T follicular helper [TFH] phenotype; PTCL not otherwise specified [NOS]) showed that specific sets of genes were associated with each of the diagnoses. These included TFH markers, cytotoxic markers, and genes whose expression was a surrogate for specific cellular subpopulations, including follicular dendritic cells, mast cells, and genes belonging to precise survival (NF-kappa B) and other pathways. Furthermore, the mutational profile was analyzed using a custom panel that targeted 62 genes in 76 cases distributed in AITL, PTCL-TFH, and PTCL-NOS. The main differences among the 3 nodal PTCL classes involved the RHOA(G)(17V) mutations (P %K Expression %K Survival %K Mutation %~