Cytotoxicity of cinchona alkaloid organocatalysts against MES-SA and MES-SA/Dx5 multidrug-resistant uterine sarcoma cell lines
作者:Szonja Polett Pósa、Gyula Dargó、Sándor Nagy、Péter Kisszékelyi、Zsófia Garádi、Lilla Hámori、Gergely Szakács、József Kupai、Szilárd Tóth
DOI:10.1016/j.bmc.2022.116855
日期:2022.8
Since the first application of natural quinine as an anti-malarial drug, cinchona alkaloids and their derivatives have been exhaustively studied for their biological activity. In our work, we tested 13 cinchona alkaloid organocatalysts, synthesised from quinine. These derivatives were screened against MES-SA and Dx5 uterine sarcoma cell lines for in vitro anticancer activity and to investigate their
自天然奎宁作为抗疟疾药物首次应用以来,金鸡纳生物碱及其衍生物的生物活性已被广泛研究。在我们的工作中,我们测试了 13 种由奎宁合成的金鸡纳生物碱有机催化剂。这些衍生物针对 MES-SA 和 Dx5 子宫肉瘤细胞系进行了体外抗癌活性筛选,并研究了它们克服 P-糖蛋白 (P-gp) 介导的多药耐药性 (MDR) 的潜力。与奎宁和其他金鸡纳醇 (47–111 µM) 相比,用氢键供体单元(例如硫脲和(硫代)方甲酰胺)装饰奎宁导致两种细胞系的半数最大生长抑制值 (1.3–21 µM) 降低. 在 P-gp 抑制剂 tariquidar 存在下进行的进一步细胞毒性研究表明,几种类似物,尤其是金鸡纳胺和方方酰胺,但不是硫方方酰胺,被 P-gp 从 MDR 细胞中排出。与已建立的 P-gp 抑制剂奎宁类似,6 种金鸡纳类似物显示可抑制 calcein-AM 流出。有趣的是,奎宁和双去氢奎宁对多药耐药 Dx5