Synthesis of new derivatives of 21-imidazolyl-16-dehydropregnenolone as inhibitors of 5α-reductase 2 and with cytotoxic activity in cancer cells
作者:Aylin Viviana Silva-Ortiz、Eugene Bratoeff、Teresa Ramírez-Apan、Yvonne Heuze、Juan Soriano、Isabel Moreno、Marisol Bravo、Lucero Bautista、Marisa Cabeza
DOI:10.1016/j.bmc.2017.01.018
日期:2017.3
containing an imidazole ring at C-21 and a different ester moiety at C-3 as inhibitors of 5α-reductase 1 and 2 isoenzymes. Their binding capacity to the androgen receptor (AR) was also studied. Additionally, we evaluated their pharmacological effect in a castrated hamster model and their cytotoxic activity on a panel of cancer cells (PC-3, MCF7, SK-LU-1). The results showed that only the derivatives with
这项研究的目的是合成几种16-脱氢孕烯醇酮衍生物,它们在C-21处带有咪唑环,在C-3处具有不同的酯部分,作为5α-还原酶1和2同工酶的抑制剂。还研究了它们与雄激素受体(AR)的结合能力。 此外,我们评估了它们在去势仓鼠模型中的药理作用以及它们对一组癌细胞(PC-3,MCF7,SK-LU-1)的细胞毒活性。 结果表明,只有在C-3上带有脂环族酯的衍生物才显示5α-R2酶抑制活性,其中最有效的是21-(1 H-咪唑-1-基)-20-氧杂柏-5,16-二烯3β-基-环己烷羧酸酯,IC 50为29 nM。这很重要,因为前列腺良性增生与5α-R2的存在直接相关。但是,所有衍生物均不能抑制5α-R1或与AR结合。这些脂环族酯衍生物减少了仓鼠中雄激素依赖性腺体的重量和大小,表明它们在体内非常活跃,并且无毒。另外,在所研究的三种癌细胞系中,21-(1H-咪唑-1-基)-20-氧杂regna-5,16-d