3-Aroylmethylene-2,3,6,7-tetrahydro-1<i>H</i>-pyrazino[2,1-<i>a</i>]isoquinolin-4(11b<i>H</i>)-ones as Potent Nrf2/ARE Inducers in Human Cancer Cells and AOM-DSS Treated Mice
作者:Mei-yang Xi、Jian-min Jia、Hao-peng Sun、Zhong-ying Sun、Jie-wei Jiang、Ya-jing Wang、Min-ye Zhang、Jun-feng Zhu、Li-li Xu、Zheng-yu Jiang、Xin Xue、Ming Ye、Xi Yang、Yuan Gao、Lei Tao、Xiao-ke Guo、Xiao-li Xu、Qing-long Guo、Xiao-jin Zhang、Rong Hu、Qi-dong You
DOI:10.1021/jm400944k
日期:2013.10.24
Nrf2-mediated activation of ARE regulates expression of cytoprotective enzymes against oxidative stress, inflammation, and carcinogenesis. We have discovered a novel structure (1) as an ARE inducer via luciferase reporter assay to screen the in-house database of our laboratory. The potency of 1 was evaluated by the expression of NQO-1, HO-1, and nuclear translocation of Nrf2 in HCT116 cells. In vivo potency of 1 was studied using AOM-DSS models, showing that the development of colorectal adenomas was significantly inhibited. Administration with 1 lowered the expression of IL-6, IL-1 beta, and promoted Nrf2 nuclear translocation. These results indicated that 1 is a potent Nrf2/ARE activator, both in vitro and in vivo. Forty-one derivatives were synthesized for SAR study, and a more potent compound 17 was identified. To our knowledge, this is a potent ARE activator. Besides, its novel structure makes it promising for further optimization.