RNA-sequencing data from 195 B-cell precursor acute lymphoblastic leukemias and mate pair whole genome sequencing data from 15 B-cell precursor acute lymphoblastic leukemias

Study ID Alternative Stable ID Type
EGAS00001001795 Other

Study Description

Fusion genes are potent driver mutations in cancer. In this study, we delineate the fusion gene landscape in a consecutive series of 195 pediatric B-cell precursor acute lymphoblastic leukemia (BCP ALL). Using RNA-sequencing, we find in-frame fusion genes in 127 (65%) cases, including 27 novel fusions. We describe a new subtype characterized by recurrent IGH-DUX4 or ERG-DUX4 fusions, representing 4% of cases, leading to overexpression of DUX4 and frequently co-occurring with intragenic ERG deletions. Furthermore, we identify a subtype characterized by an ETV6-RUNX1-like gene expression profile and coexisting ETV6 and IKZF1 alterations. Taken together, this study provides a detailed overview of fusion genes in pediatric BCP ALL and adds new pathogenetic insights, which may improve risk stratification and provide novel therapeutic options in this disease.

Study Datasets 2 dataset.

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Dataset ID Description Technology Samples
EGAD00001002112 RNA-seq data from 195 pediatric BCP-ALL cases. Alignment: TopHat 2.0.7. Reference genome: hg19. Illumina HiScanSQ 195
EGAD00001002113 Mate pair whole genome sequencing data from 15 pediatric BCP ALL cases. Reference genome: hg19. Alignment: BWA 0.7.9a. NextSeq 500 15

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Publications Citations
Identification of ETV6-RUNX1-like and DUX4-rearranged subtypes in paediatric B-cell precursor acute lymphoblastic leukaemia.
Nat Commun 7:2016 11790
Mutation methylation and gene expression profiles in dup(1q)-positive pediatric B-cell precursor acute lymphoblastic leukemia.
Leukemia 32:2018 2117-2125
Proteogenomics and Hi-C reveal transcriptional dysregulation in high hyperdiploid childhood acute lymphoblastic leukemia.
Nat Commun 10:2019 1519
DUX4 Suppresses MHC Class I to Promote Cancer Immune Evasion and Resistance to Checkpoint Blockade.
Dev Cell 50:2019 658-671.e7
The application of RNA sequencing for the diagnosis and genomic classification of pediatric acute lymphoblastic leukemia.
Blood Adv 4:2020 930-942
Short H2A histone variants are expressed in cancer.
Nat Commun 12:2021 490