期刊
JOURNAL OF BIOLOGICAL INORGANIC CHEMISTRY
卷 22, 期 5, 页码 765-774出版社
SPRINGER
DOI: 10.1007/s00775-017-1467-y
关键词
Anticancer drug; Cisplatin; Copper; Metal transport
资金
- Australian Research Council [DP150103369]
- Australian Postgraduate Award
- Westpac Bicentennial Foundation
There is much interest in understanding the mechanisms by which platinum-based anticancer agents enter cells, and the copper transporter CTR1 has been the focus of many recent studies. While there is a clinical correlation between CTR1 levels and platinum efficacy, cellular studies have provided conflicting evidence relating to the relationship between cisplatin and CTR1. We report here our studies of the relationship between cisplatin and copper homeostasis in human colon cancer cells. While the accumulation of copper and platinum do not appear to compete with each other, we did observe that cisplatin perturbs CTR1 distribution within 10 min, a far shorter incubation time than commonly employed in cellular studies of cisplatin. Furthermore, on these short time-scales, cisplatin caused an increase in the cytoplasmic labile copper pool. While the predominant focus of studies to date has been on CTR1, these studies highlight the importance of investigating the interaction of cisplatin with other copper proteins.
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