Ex vivo drug responses and molecular profiles of 597 pediatric acute lymphoblastic leukemia patients.

ABSTRACT: Ex vivo drug response profiling is emerging as a valuable tool for identifying drug resistance mechanisms and advancing precision medicine in hematological cancers. However, the functional impact of dysregulation of the epigenome and transcriptome in this context remains poorly understood. In this study, we combined ex vivo drug sensitivity profiling with transcriptomic and epigenomic analyses in diagnostic samples from 597 pediatric B-cell precursor acute lymphoblastic leukemia (BCP-ALL) patients. Ex vivo resistance to antimetabolites (e.g., cytarabine, thioguanine), glucocorticoids (e.g., dexamethasone, prednisolone), and doxorubicin was independently associated with reduced relapse-free survival (P < 0.05). Molecular profiling identified pretreatment DNA methylation and gene expression

SUBMITTER: Enblad AP 

PROVIDER: S-EPMC12301861 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature