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.
FL442作为一种Androgen Receptor(AR) 调节剂,在AR依赖性前列腺癌细胞中展现出显著的抑制活性,其效率与Bicalutamide和Enzalutamide这类传统抗雄激素药物相似。此外,FL442针对于对Enzalutamide显示较强耐药性的AR突变体F876L也保持了抗雄激素活性。在小鼠模型中,FL442的药代动力学特征表明该化合物具有较长的半衰期(8小时)、针对前列腺组织的良好定向性及优异的代谢稳定性,且在低血浆浓度(30 ng mL)下依然能有效抑制LNCaP肿瘤生长。