RT Journal Article T1 A DNA damage repair gene-associated signature predicts responses of patients with advanced soft-tissue sarcoma to treatment with trabectedin. A1 Moura, David S A1 Peña-Chilet, Maria A1 Cordero-Varela, Juan Antonio A1 Alvarez-Alegret, Ramiro A1 Agra-Pujol, Carolina A1 Izquierdo, Francisco A1 Ramos, Rafael A1 Ortega-Medina, Luis A1 Martin-Davila, Francisco A1 Castilla-Ramirez, Carolina A1 Hernandez-Leon, Carmen Nieves A1 Romagosa, Cleofe A1 Vaz-Salgado, Maria Angeles A1 Lavernia, Javier A1 Bague, Silvia A1 Mayodormo-Aranda, Empar A1 Vicioso, Luis A1 Hernandez-Barcelo, Jose Emilio A1 Rubio-Casadevall, Jordi A1 de-Juan, Ana A1 Fiaño-Valverde, Maria Concepcion A1 Hindi, Nadia A1 Lopez-Alvarez, Maria A1 Lacerenza, Serena A1 Dopazo, Joaquin A1 Gutierrez, Antonio A1 Alvarez, Rosa A1 Valverde, Claudia A1 Martinez-Trufero, Javier A1 Martin-Broto, Javier K1 gene signature K1 predictive biomarkers K1 trabectedin AB Predictive biomarkers of trabectedin represent an unmet need in advanced soft-tissue sarcomas (STS). DNA damage repair (DDR) genes, involved in homologous recombination or nucleotide excision repair, had been previously described as biomarkers of trabectedin resistance or sensitivity, respectively. The majority of these studies only focused on specific factors (ERCC1, ERCC5, and BRCA1) and did not evaluate several other DDR-related genes that could have a relevant role for trabectedin efficacy. In this retrospective translational study, 118 genes involved in DDR were evaluated to determine, by transcriptomics, a predictive gene signature of trabectedin efficacy. A six-gene predictive signature of trabectedin efficacy was built in a series of 139 tumor samples from patients with advanced STS. Patients in the high-risk gene signature group showed a significantly worse progression-free survival compared with patients in the low-risk group (2.1 vs 6.0 months, respectively). Differential gene expression analysis defined new potential predictive biomarkers of trabectedin sensitivity (PARP3 and CCNH) or resistance (DNAJB11 and PARP1). Our study identified a new gene signature that significantly predicts patients with higher probability to respond to treatment with trabectedin. Targeting some genes of this signature emerges as a potential strategy to enhance trabectedin efficacy. PB John Wiley & Sons Ltd. YR 2021 FD 2021-12-02 LK http://hdl.handle.net/10668/17787 UL http://hdl.handle.net/10668/17787 LA en NO Moura DS, Peña-Chilet M, Cordero Varela JA, Alvarez-Alegret R, Agra-Pujol C, et al. A DNA damage repair gene-associated signature predicts responses of patients with advanced soft-tissue sarcoma to treatment with trabectedin. Mol Oncol. 2021 Dec;15(12):3691-3705. NO This study was funded by the Spanish Group for Research on Sarcoma (GEIS) and partially by PharmaMar. The authors would like to thank the GEIS data center for data management. The authors also thank the donors and the Hospital Universitario Virgen del Rocío—Instituto de Biomedicina de Sevilla Biobank (Andalusian Public Health System Biobank and ISCIII-Red de Biobancos PT17/0015/0041) for part of the human specimens used in this study. David S. Moura is recipient of a Sara Borrell postdoctoral fellowship funded by the National Institute of Health Carlos III (ISCIII) (CD20/00155). DS RISalud RD Apr 18, 2025