RT Journal Article T1 Time to Treatment Prediction in Chronic Lymphocytic Leukemia Based on New Transcriptional Patterns A1 Mosquera Orgueira, Adrián A1 Antelo Rodríguez, Beatriz A1 Alonso Vence, Natalia A1 Bendaña López, María Ángeles A1 Díaz Arias, José Ángel A1 Díaz Varela, Nicolás Antonio A1 González Pérez, Marta Sonia A1 Pérez Encinas, Manuel Mateo A1 Bello López, José Luis K1 Chronic lymphocytic leukemia K1 Time to treatment prediction K1 Gene expression K1 RNAseq K1 Machine learning K1 Prognostic factors K1 IGHV AB Chronic lymphocytic leukemia (CLL) is the most frequent lymphoproliferative syndrome in western countries. CLL evolution is frequently indolent, and treatment is mostly reserved for those patients with signs or symptoms of disease progression. In this work, we used RNA sequencing data from the International Cancer Genome Consortium CLL cohort to determine new gene expression patterns that correlate with clinical evolution.We determined that a 290-gene expression signature, in addition to immunoglobulin heavy chain variable region (IGHV) mutation status, stratifies patients into four groups with notably different time to first treatment. This finding was confirmed in an independent cohort. Similarly, we present a machine learning algorithm that predicts the need for treatment within the first 5 years following diagnosis using expression data from 2,198 genes. This predictor achieved 90% precision and 89% accuracy when classifying independent CLL cases. Our findings indicate that CLL progression risk largely correlates with particular transcriptomic patterns and paves the way for the identification of high-risk patients who might benefit from prompt therapy following diagnosis. PB Frontiers Media YR 2019 FD 2019 LK http://hdl.handle.net/10347/21265 UL http://hdl.handle.net/10347/21265 LA eng NO Mosquera Orgueira, A., Antelo Rodríguez, B., Alonso Vence, N., Bendaña López, Á, Díaz Arias, J. Á, Díaz Varela, N., . . . Bello López, J. L. (2019). Time to treatment prediction in chronic lymphocytic leukemia based on new transcriptional patterns. Frontiers in Oncology, 9, 79. doi:10.3389/fonc.2019.00079 DS Minerva RD 24 abr 2026