OB 24 hydrochloride is a potent and selective hemeoxygenase 1 (HO-1) inhibitor (IC50 values are 1.9 and >100 μM for HO-1 and HO-2 respectively), reduces protein carbonylation and reactive oxygen species formation in advanced prostate cancer cells (PCA). Inhibits cell proliferationin vitroand PCA tumor growth and lymph node/lung metastasesin vivo. Synergizes with Taxol.
HemeOxygenase-1-IN-2 is a novel inhibitor of hemeoxygenase-1 (HO-1), displaying potent antiproliferative activity in vitro, with an IC50 value of 0.95 μM.
Flavoglaucin exhibits significant inhibitory effects on PTP1B, the IC50 value of 13.4, micrometer; it also shows good binding affinity for human opioid or cannabinoid receptors. Flavoglaucin appears to be an antitumor promoter, it also has anti-inflammato