In vitro activity: MCB-613 selectively and reversibly binds to the RID of SRC-3, and selectively kills cancer cells including MCF-7 (breast), PC-3 (prostate), H1299 (lung), and HepG2 (liver) cells, without toxicity to mouse primary hepatocytes and mouse embryonic fibroblasts (MEFs). MCB-613 also increases SRCs’ interactions with other coactivators and markedly induces ER stress coupled to the generation of reactive oxygen species (ROS).
Kinase Assay: After various compound treatments, cells are lysed in luciferase lysis buffer and assayed for luciferase activity using the ONE-Glo luciferase assay system. All luciferase activities are normalized to protein concentration determined by Bradford assay.
Cell Assay: Cells [MCF-7 (breast), PC-3 (prostate), H1299 (lung), and HepG2 (liver) cells; mouse primary hepatocytes and mouse embryonic fibroblasts] are seeded in 96-well plates and allowed to reach 60% to 70% confluence. After indicated compound treatments, relative numbers of viable cells are measured by MTS assay using the Cell Titer 96 Aqueous One Solution Cell Proliferation Assay. | 
