E-GEOD-12313 - Transcription profiling of mouse activated or control 5-FU bone marrow from MLL-AF4stop knockins
Submitted on 31 July 2008, released on 13 November 2008, last updated on 27 March 2012
We created a mouse model where conditional expression of physiologic levels of an Mll-AF4 fusion oncogene induces development of acute lymphoblastic (ALL) or acute myeloid leukemias (AML). Immunophenotypic and gene expression analysis of the ALL cells demonstrated bone marrow replacement with B-precursor cells which express a gene expression profile that has significant overlap with profiles in human MLL-rearranged ALL. To examine early, pre-leukemic changes in lymphoid cells due to Mll-AF4 expression, we infected 5-FU bone marrow cells from Mll-AF4stop knocking mice with activating (Cre-GFP) or control (MIF-GFP) retrovirus ex vivo and measured expression changes after culture under lymphoid growth conditions. Experiment Overall Design: Mll-AF4stop knock-in mice were treated with 5-FU and 5 days later their bone marrow infected ex vivo with either Cre-GFP to activate the Mll-AF4 fusion construct or with a control MIG-Cre retrovirus. GFP+ cells were sorted 2 days post-infection and cultured for 14 days under lymphoid growth conditions before total RNA was isolated for hybridization to Affymetrix expression microarrays.
transcription profiling by array, unknown experiment type
H3K79 methylation profiles define murine and human MLL-AF4 leukemias. Andrei V Krivtsov, Zhaohui Feng, Madeleine E Lemieux, Joerg Faber, Sridhar Vempati, Amit U Sinha, Xiaobo Xia, Jonathan Jesneck, Adrian P Bracken, Lewis B Silverman, Jeffery L Kutok, Andrew L Kung, Scott A Armstrong.