The modular network structure of the mutational landscape of Acute Myeloid Leukemia.

TitleThe modular network structure of the mutational landscape of Acute Myeloid Leukemia.
Publication TypeJournal Article
Year of Publication2018
AuthorsIbáñez, M, Carbonell-Caballero, J, Such, E, García-Alonso, L, Liquori, A, López-Pavía, M, LLop, M, Alonso, C, Barragán, E, Gómez-Seguí, I, Neef, A, Hervás, D, Montesinos, P, Sanz, G, Sanz, MAngel, Dopazo, J, Cervera, J
JournalPLoS One
Volume13
Issue10
Paginatione0202926
Date Published2018
ISSN1932-6203
Abstract

Acute myeloid leukemia (AML) is associated with the sequential accumulation of acquired genetic alterations. Although at diagnosis cytogenetic alterations are frequent in AML, roughly 50% of patients present an apparently normal karyotype (NK), leading to a highly heterogeneous prognosis. Due to this significant heterogeneity, it has been suggested that different molecular mechanisms may trigger the disease with diverse prognostic implications. We performed whole-exome sequencing (WES) of tumor-normal matched samples of de novo AML-NK patients lacking mutations in NPM1, CEBPA or FLT3-ITD to identify new gene mutations with potential prognostic and therapeutic relevance to patients with AML. Novel candidate-genes, together with others previously described, were targeted resequenced in an independent cohort of 100 de novo AML patients classified in the cytogenetic intermediate-risk (IR) category. A mean of 4.89 mutations per sample were detected in 73 genes, 35 of which were mutated in more than one patient. After a network enrichment analysis, we defined a single in silico model and established a set of seed-genes that may trigger leukemogenesis in patients with normal karyotype. The high heterogeneity of gene mutations observed in AML patients suggested that a specific alteration could not be as essential as the interaction of deregulated pathways.

DOI10.1371/journal.pone.0202926
Alternate JournalPLoS ONE
PubMed ID30303964
PubMed Central IDPMC6179200