Description
InformationTHZ2, a THZ1 analog, is a selective inhibitor ofCDK7with IC50 of 13.9 nM. THZ2 efficiently suppresses the clonogenic growth of TNBC cells with IC50 of ~10 nM.TargetsCDK7 (Cell-free assay) 13.9 nMIn vitroTHZ2 selectively targets CDK7 and potently inhibits the growth of triple-negative but not ER/PR+ breast cancer cells. THZ2 at low nanomolar doses also efficiently suppresses the clonogenic growth of TNBC cells.In vivoTHZ2 is well tolerated in nude mice. The growth rate of tumors in mice treated with THZ2 is markedly reduced as compared to that of control tumors, demonstrating an anti-tumor activity of THZ2. Both acute and chronic exposure to THZ2 significantly reduces CTD phosphorylation of RNAPII at all three phosphorylation sites (S2, S5, and S7), indicating that CDK7 is efficiently targeted in the tumor cells. Compared to vehicle-treated tumors, tumor tissues isolated from mice treated with THZ2 has reduced proliferation and increased apoptosis. THZ2 is able to efficiently reduce tumor cell proliferation and induce cell death in vivo.Cell Research(from reference)Cell lines：BT549, CAMA1, HCC1187, HCC1569, HCC38, MDAMB-231, MDA-MB-415, MDA-MB-468, T47D, ZR-75-1, HEK293T cells Concentrations：200 nM, 500 nM Incubation Time：24 h, 48 h