Heme Oxygenase-1-IN-2 is a novel inhibitor of heme oxygenase-1 (HO-1), displaying potent antiproliferative activity in vitro, with an IC50 value of 0.95 μM.
OB 24 hydrochloride is a potent and selective heme oxygenase 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.
9-cis-β-Carotene, a precursor of retinal, is cleaved by beta-carotene oxygenase 1 (BCMO1) to produce 9-cis-retinal. It inhibits photoreceptor degeneration and restores retinal function in vivo.