BRD9876 is an inhibitor of the kinesin spindle protein Eg5.1 It arrests Eg5-mediated microtubule gliding, as well as inhibits Eg5 ATPase activity in the presence of microtubules, in cell-free assays. BRD9876 is cytotoxic to MM.1S stroma-independent multiple myeloma cells (IC50 = 2.2 µM). It induces cell cycle arrest at the G2/M phase in MM.1S cells when used at a concentration of 10 µM.
1.Chattopadhyay, S., Stewart, A.L., Mukherjee, S., et al.Niche-based screening in multiple myeloma identifies a kinesin-5 inhibitor with improved selectivity over hematopoietic progenitorsCell Rep.10(5)755-770(2015)