3,5-bis((4-Nitrophenyl)methylene)-1,1-dioxide, tetrahydro-4H-thiopyran-4-one NSC-144303 Yellow solid. PROTECT FROM LIGHT. PACKAGED UNDER INERT GAS. A cell-permeable cross-conjugated a,b-unsaturated dienone compound that induces caspase activation and apoptosis (IC50 = 1.76 and 1.6 µM in E1A and E1A/C9DN cells, respectively) via the apoptosome-independent mitochondrial pathway by selectively inhibiting ubiquitin isopeptidase activity (IC50 ~ 30 µM). The cellular expression of Bax and Bak is essential for G5-activated apoptosis, while Bcl-2 appears to protect cells against the effect of G5. G5 is more potent than, but otherwise exhibits similar pharmacological effects as, Ubiquitin Isopeptidase Inhibitor II, F6 (Cat. No. 662126). Purity: ≥97% by HPLC. Ref.: Aleo, E., et al. 2006. Cancer Res. 66, 9235. |