4.2 Article

Deoxycholic acid as a molecular scaffold for tyrosyl-DNA phosphodiesterase 1 inhibition: A synthesis, structure-activity relationship and molecular modeling study

期刊

STEROIDS
卷 165, 期 -, 页码 -

出版社

ELSEVIER SCIENCE INC
DOI: 10.1016/j.steroids.2020.108771

关键词

Bile acid; DNA repair enzyme; Tdp1 inhibitor; Cancer; Tumor; Molecular modelling

资金

  1. Russian Science Foundation [19-13-0040]
  2. Russian Science Foundation [19-13-00040] Funding Source: Russian Science Foundation

向作者/读者索取更多资源

Para-bromoanilides of deoxycholic acid were designed as potential tyrosyl-DNA phosphodiesterase 1 (Tdp1) inhibitors, with compound 3,12-dimethoxypara-bromoanilide 17 showing the highest activity. Evaluation in tumor cell lines revealed that derivative 17 exhibited excellent activity and low cytotoxicity.
Para-Bromoanilides of deoxycholic acid with various functional groups on the steroid scaffold were designed as promising tyrosyl-DNA phosphodiesterase 1 (Tdp1) inhibitors. Tdp1 is a DNA repair enzyme, involved in removing DNA damage caused by topoisomerase I poisons; an important class of anticancer drugs. Thus, reducing the activity of Tdp1 can increase the efficacy of anticancer drugs in current use. Inhibitory activity in the low micromolar and submicromolar concentrations was observed with 3,12-dimethoxypara-bromoanilide 17 being the most active with an IC50 value of 0.27 mu M. The activity of N-methyl para-bmmoanilides was 3-4.8 times lower than of the corresponding para-bmmoanilides. Increased potency of the ligands was seen with higher molecular weight and log P values. The ligands were evaluated for their cytotoxic potential in a panel of tumor cell lines; all were nontoxic to the A549 pulmonary adenocarcinoma cell line. However, derivatives containing a hydroxyl group at the 12th position were more toxic than their 12-hydroxyl group counterparts (acetoxy-, oxoand methoxy- group) against HCT-116 human colon and HepG2 hepatocellular carcinomas. In addition, an N-methyl substitution led to an increase in toxicity for the HCT-116 and HepG2 cell lines. The excellent activity as well as low cytotoxicity, derivative 17 can be considered as a lead compound for further development.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.2
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据