dBET6

Animal experiment:

Mice[1]MOLT4 human T-ALL cells are intravenously injected into NSG mice (2×106 cells/mouse). Luminescence is utilized to monitor engraftment (evident at day 6), at which point mice are randomized into three cohorts that receive dBET6 (7.5 mg/kg BID, n = 8), JQ1 (20 mg/kg QD, n = 9) or vehicle (captisol, n = 9) treatment for 14 days. Survival of all three cohorts is subsequently monitored using hind limb paralysis caused by high femoral leukemic burden as a defined endpoint. SUPT11 human T-ALL cells (mCherry+ and Luciferase+) are intravenously injected into NSG mice (2.52×106 cells/mouse). Luminescence is used to monitor successful engraftment, occurring 10 days after injection. At this point, animals are randomized into three cohorts that receive dBET6 (7.5 mg/kg BID, n = 7), JQ1 (7.5 mg/kg BID, n = 7) or vehicle (captisol, n = 7) treatment for 18 days. Treatment burden is assessed via total body luminescence imaging as well as by bone marrow infiltration by mCherry+ T-ALL cells[1].

References:

[1]. Winter GE, et al. BET Bromodomain Proteins Function as Master Transcription Elongation Factors Independent of CDK9 Recruitment. Mol Cell. 2017 Jul 6;67(1):5-18.e19.