First Author | Krivtsov AV | Year | 2008 |
Journal | Cancer Cell | Volume | 14 |
Issue | 5 | Pages | 355-68 |
PubMed ID | 18977325 | Mgi Jnum | J:140628 |
Mgi Id | MGI:3814243 | Doi | 10.1016/j.ccr.2008.10.001 |
Citation | Krivtsov AV, et al. (2008) H3K79 methylation profiles define murine and human MLL-AF4 leukemias. Cancer Cell 14(5):355-68 |
abstractText | We created a mouse model wherein conditional expression of an Mll-AF4 fusion oncogene induces B precursor acute lymphoblastic (ALL) or acute myeloid leukemias (AML). Gene expression profile analysis of the ALL cells demonstrated significant overlap with human MLL-rearranged ALL. ChIP-chip analysis demonstrated histone H3 lysine 79 (H3K79) methylation profiles that correlated with Mll-AF4-associated gene expression profiles in murine ALLs and in human MLL-rearranged leukemias. Human MLL-rearranged ALLs could be distinguished from other ALLs by their H3K79 profiles, and suppression of the H3K79 methyltransferase DOT1L inhibited expression of critical MLL-AF4 target genes. We thus demonstrate that ectopic H3K79 methylation is a distinguishing feature of murine and human MLL-AF4 ALLs and is important for maintenance of MLL-AF4-driven gene expression. |