The molecular landscape of pediatric acute myeloid leukemia reveals recurrent structural alterations and age-specific mutational interactions.
Document Type
Article
Publication Date
1-2018
Identifier
DOI: 10.1038/nm.4439; PMCID: PMC5907936
Abstract
We present the molecular landscape of pediatric acute myeloid leukemia (AML) and characterize nearly 1,000 participants in Children's Oncology Group (COG) AML trials. The COG-National Cancer Institute (NCI) TARGET AML initiative assessed cases by whole-genome, targeted DNA, mRNA and microRNA sequencing and CpG methylation profiling. Validated DNA variants corresponded to diverse, infrequent mutations, with fewer than 40 genes mutated in >2% of cases. In contrast, somatic structural variants, including new gene fusions and focal deletions of MBNL1, ZEB2 and ELF1, were disproportionately prevalent in young individuals as compared to adults. Conversely, mutations in DNMT3A and TP53, which were common in adults, were conspicuously absent from virtually all pediatric cases. New mutations in GATA2, FLT3 and CBL and recurrent mutations in MYC-ITD, NRAS, KRAS and WT1 were frequent in pediatric AML. Deletions, mutations and promoter DNA hypermethylation convergently impacted Wnt signaling, Polycomb repression, innate immune cell interactions and a cluster of zinc finger-encoding genes associated with KMT2A rearrangements. These results highlight the need for and facilitate the development of age-tailored targeted therapies for the treatment of pediatric AML.
Journal Title
Nature medicine
Volume
24
Issue
1
First Page
103
Last Page
112
MeSH Keywords
Child; Chromosome Aberrations; DNA Methylation; Humans; Leukemia, Myeloid, Acute; Mutation; Transcriptome
Keywords
Child; Chromosome Aberrations; DNA Methylation; Humans; Leukemia, Myeloid, Acute; Mutation; Transcriptome
Recommended Citation
Bolouri H, Farrar JE, Triche T Jr, et al. The molecular landscape of pediatric acute myeloid leukemia reveals recurrent structural alterations and age-specific mutational interactions [published correction appears in Nat Med. 2018 Apr 10;24(4):526] [published correction appears in Nat Med. 2019 Mar;25(3):530]. Nat Med. 2018;24(1):103-112. doi:10.1038/nm.4439
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