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040 _cH12O
041 _aeng
100 _91468
_aRapado Martínez, Inmaculada
_eInstituto de Investigación i+12
245 0 0 _aRAG-mediated recombination is the predominant driver of oncogenic rearrangement in ETV6-RUNX1 acute lymphoblastic leukemia.
_h[artículo]
260 _bNature genetics,
_c2014
300 _a46(2):116-25.
500 _aFormato Vancouver: Papaemmanuil E, Rapado I, Li Y, Potter NE, Wedge DC, Tubio J et al. RAG-mediated recombination is the predominant driver of oncogenic rearrangement in ETV6-RUNX1 acute lymphoblastic leukemia. Nat Genet. 2014 Feb;46(2):116-25.
501 _aPMID: 24413735 PMC3960636
504 _aContiene 56 referencias
520 _aThe ETV6-RUNX1 fusion gene, found in 25% of childhood acute lymphoblastic leukemia (ALL) cases, is acquired in utero but requires additional somatic mutations for overt leukemia. We used exome and low-coverage whole-genome sequencing to characterize secondary events associated with leukemic transformation. RAG-mediated deletions emerge as the dominant mutational process, characterized by recombination signal sequence motifs near breakpoints, incorporation of non-templated sequence at junctions, ∼30-fold enrichment at promoters and enhancers of genes actively transcribed in B cell development and an unexpectedly high ratio of recurrent to non-recurrent structural variants. Single-cell tracking shows that this mechanism is active throughout leukemic evolution, with evidence of localized clustering and reiterated deletions. Integration of data on point mutations and rearrangements identifies ATF7IP and MGA as two new tumor-suppressor genes in ALL. Thus, a remarkably parsimonious mutational process transforms ETV6-RUNX1-positive lymphoblasts, targeting the promoters, enhancers and first exons of genes that normally regulate B cell differentiation.
710 _9625
_aInstituto de Investigación imas12
856 _uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3960636/
_yAcceso libre
942 _2ddc
_cART
_n0