Dinaciclib and MK-2206 were provided by Merck and Co. (Boston, MA). Dinaciclib was dissolved in 20% hydroxypropyl-β-cyclodextrin (HPBCD; Sigma, St. Louis, MO) (18 (link)). MK-2206 was dissolved in 0.5% methanol, 0.1% Tween-80.