Figure 2. I-BET151 selectively and potently inhibits MLL-fusion leukaemic cell lines in vitro.
(A) Human leukaemia cell lines tested using I-BET151. (B) Clonogenic assays performed in the presence of DMSO or I-BET151. (C) Haematopoietic progenitors were isolated from mouse bone marrow and retrovirally transformed with MLL-ENL or MLL-AF9. These cells were used in both proliferation and clonogenic assays. (D) Apoptosis was assessed by FACS analysis following 72 hours incubation with DMSO or I-BET151. (E) Cell cycle progression was assessed by FACS analysis 24 hours after incubation with DMSO or I-BET151. Bar graphs are represented as the mean and error bars reflect standard deviation of results derived from triplicate experiments.