Synthesis of Usnic Acid Derivatives and Evaluation of Their Antiproliferative Activity against Cancer Cells
作者:Agnieszka Pyrczak-Felczykowska、Rajeshwar Narlawar、Anna Pawlik、Beata Guzow-Krzemińska、Damian Artymiuk、Aleksandra Hać、Kamil Ryś、Louis M. Rendina、Tristan A. Reekie、Anna Herman-Antosiewicz、Michael Kassiou
DOI:10.1021/acs.jnatprod.8b00980
日期:2019.7.26
Usnic acid is a secondary metabolite abundantly found in lichens, for which promising cytotoxic and antitumor potential has been shown. However, knowledge concerning activities of its derivatives is limited. Herein, a series of usnic acid derivatives were synthesized and their antiproliferative potency against cancer cells of different origin was assessed. Some of the synthesized compounds were more
松萝酸是在地衣中大量发现的次生代谢产物,已显示出有希望的细胞毒性和抗肿瘤潜力。然而,关于其衍生物的活性的知识是有限的。在此,合成了一系列松萝酸衍生物,并评估了其对不同来源的癌细胞的抗增殖能力。一些合成的化合物比松香酸更具活性。化合物2a和2b以剂量和时间依赖性方式抑制所有测试的癌细胞系的存活。处理48小时后的IC50值约为。MCF-7和PC-3细胞为3μM,HeLa细胞为1μM,而3a和3b仅显示出对HeLa细胞的抗增殖活性。在S和G2 / M期,所有活性松萝酸衍生物均会诱导G0 / G1阻滞并降低HeLa细胞的比例。化合物2a和2b降低了所评估癌细胞的克隆发生潜能,并诱导了细胞周期停滞在G0 / G1期和MCF-7细胞凋亡。此外,他们诱导了大量胞质空泡化,这与动力蛋白依赖性内吞作用的升高有关,该过程尚未被报道用于松萝酸,并表明了其合成衍生物的新作用机理。这项工作还表明,天然存在的松萝酸是