OTS964 is an inhibitor of lymphokine-activated killer T cell-originated protein kinase (TOPK; IC50 = 28 nM). It specifically blocks cytokinesis, leading to apoptosis, in a broad range of cancer cells. OTS964 induces apoptosis of human lung cancer cells in mouse xenografts.
OTS 964 works through cytokinesis and is an effective TOPK inhibitor which has been shown to cause tumor suppression in xenografts of human cancer.
1. matsuo y, park jh2, miyamoto t, et al. topk inhibitor induces complete tumor regression in xenograft models of human cancer through inhibition of cytokinesis. ci transl med. 2014 oct 22;6(259):259ra145.