Combined treatment with auranofin and trametinib induces synergistic apoptosis in breast cancer cells

被引:17
|
作者
Joo, Min-Kyung [1 ]
Shin, Sangyun [1 ]
Ye, Dong-Jin [1 ]
An, Hong-Gyu [1 ]
Kwon, Tae-Uk [1 ]
Baek, Hyoung-Seok [1 ]
Kwon, Yeo-Jung [1 ]
Chun, Young-Jin [1 ]
机构
[1] Chung Ang Univ, Coll Pharm, Ctr Metareceptome Res, Seoul 06974, South Korea
基金
新加坡国家研究基金会;
关键词
auranofin; trametinib; synergistic effect; combination treatment; breast cancer; OXIDATIVE STRESS; REDOX REGULATION; MEK INHIBITOR; ANNEXIN A5; P38; MAPK; ACTIVATION; EXPRESSION; ROS; THIOREDOXIN; RECONSTITUTION;
D O I
10.1080/15287394.2020.1835762
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Auranofin is a gold complex used as an anti-rheumatic agent and may act as a potent anticancer drug against breast tumors. Trametinib is a specific mitogen-activated protein kinase inhibitor, approved for the treatment of metastatic melanoma. The aim of this study was to examine the synergistic effects of auranofin and trametinib on apoptosis in MCF-7 human breast cancer cells. The combination treatment inhibited cancer cell proliferation and induced cell cycle arrest at the sub-G1 phase and apoptosis via poly (ADP-ribose) polymerase cleavage and caspase-3/7 activation. It is noteworthy that this treatment significantly increased p38 mitogen-activated protein kinase (MAPK) phosphorylation to induce mitochondrial stress, subsequently promoting cancer cell apoptosis through release of apoptosis-inducing factor. Further data demonstrated that combined treatment significantly induced increase in nuclear translocation of AIF. These results indicated that activation of the p38 MAPK signaling pathway and mitochondrial apoptosis may contribute to the synergistic consequences in MCF-7 cells. Collectively, our data demonstrated that combined treatment with auranofin and trametinib exhibited synergistic breast cancer cell death and this combination might be utilized as a novel therapeutic strategy for breast cancer.
引用
收藏
页码:84 / 94
页数:11
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