Kenpaullone

Kenpaullone (9-Bromopaullone, NSC-664704) is a potent inhibitor of CDK1/cyclin B with IC50 of 0.4 uM, also inhibited CDK2/cyclin A (IC50=0.68 uM), CDK2/cyclin E (IC50-7.5 uM) and CDK5/p25 (IC50=0.85 uM) ; shows less effect on other kinases, only c-Src, CK2, ERK1/2 (IC50=15-20 uM) with IC50s less than 30 uM; displays delayed cell cycle progression in treated cells; also is a potent inhibitor of GSK-3β (IC50=23 nM), activates Nanog expression in mouse fibroblasts transduced with a subset of reprogramming factors lacking Klf4, can replace Klf4 in the reprogramming of primary and secondary fibroblasts and NPCs.