Mutational topography reflects clinical neuroblastoma heterogeneity.

ABSTRACT: Neuroblastoma is a pediatric solid tumor characterized by strong clinical heterogeneity. Although clinical risk-defining genomic alterations exist in neuroblastomas, the mutational processes involved in their generation remain largely unclear. By examining the topography and mutational signatures derived from all variant classes, we identified co-occurring mutational footprints, which we termed mutational scenarios. We demonstrate that clinical neuroblastoma heterogeneity is associated with differences in the mutational processes driving these scenarios, linking risk-defining pathognomonic variants to distinct molecular processes. Whereas high-risk MYCN-amplified neuroblastomas were characterized by signs of replication slippage and stress, homologous recombination-associated signat

SUBMITTER: Rodriguez-Fos E 

PROVIDER: S-EPMC10589636 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature