1-Cyclohexyl-4-(4-arylcyclohexyl)piperazines: Mixed σ and Human Δ8-Δ7 Sterol Isomerase Ligands with Antiproliferative and P-Glycoprotein Inhibitory Activity
作者:Carmen Abate、Mauro Niso、Marialessandra Contino、Nicola Antonio Colabufo、Savina Ferorelli、Roberto Perrone、Francesco Berardi
DOI:10.1002/cmdc.201000371
日期:2011.1.3
designed as mixed affinity ligands for sigma (σ) receptors and human Δ8–Δ7 sterol isomerase (HSI) ligands, which also exhibit P‐glycoprotein (P‐gp) inhibitory activity, with the aim of exploiting the antiproliferative effects mediated by σ and HSI sites while overcoming P‐gp‐mediated resistance. All of the compounds displayed high affinities for σ receptors and HSI sites, P‐gp inhibitory activity, and σ2
许多新的化学治疗剂正在临床前研究中,尽管努力更选择性地靶向癌细胞,但经常遇到诸如毒性和固有耐药性的局限性。因此,需要替代策略来治疗癌症并克服这种局限性。我们描述了新颖的环己基衍生物,设计为混合亲和配体对σ(σ)受体和人类Δ 8 -Δ 7固醇异构酶(HSI)配体,其也表现出P-糖蛋白(P-gp)的抑制活性,与利用的目的由σ和HSI位点介导的抗增殖作用,同时克服了P-gp介导的耐药性。所有的化合物都显示出对σ受体和HSI位点,P-gp的抑制活性高的亲和力,和σ 2受体激动剂的抗增殖活性。抗增殖活性也在PC-3细胞测试,以建立σ 1和HSI贡献。化合物顺式- 11,其显示最佳抗增殖和P-gp的抑制活性,用0.1μ共同施用中号在MDCK-MDR1细胞的阿霉素。化合物顺式- 11引起70%和90%的细胞死亡共同施用时,在30μ中号和50μ米,分别。单独使用时,cis - 11导致50%的细胞死亡,这