SI-2

SI-2 (EPH 116) is an inhibitor for steroid receptor coactivator-3 (SRC-3), which reduces the transcriptional activity and protein concentration of SRC-3 in cells, exhibits cytotoxicity in cancer cell, with IC50s ranging from 3-20 nM, inhibits migration of MDA-MB-468, induces apoptosis of MDA-MB-468. SI-2 inhibits the tumor growth in mouse models, without significant toxicity for heart and other major organs (20 mg/kg)[1].

[1]Song X, et al., Development of potent small-molecule inhibitors to drug the undruggable steroid receptor coactivator-3. Proc Natl Acad Sci U S A. 2016 May 3;113(18):4970-5.