Copper binding modulates the platination of human copper chaperone Atox1 by antitumor trans-platinum complexes
文献类型：期刊论文
| 作者 | Xi, Zhaoyong1,2; Guo, Wei3; Tian, Changlin4; Wang, Fuyi3; Liu, Yangzhong1,2 |
| 刊名 | METALLOMICS
 |
| 出版日期 | 2014 |
| 卷号 | 6期号:3页码:491-497 |
| ISSN号 | 1756-5901 |
| DOI | 10.1039/c3mt00338h |
| 英文摘要 | The transport system of platinum-based anticancer agents is crucial for drug sensitivity. Increasing evidence indicates that the copper transport system is also involved in the cellular influx and efflux of platinum drugs. The copper chaperone Atox1 has been shown to bind to cisplatin in vitro and in cells. Previous results reveal that copper binding promotes the reaction between Atox1 and cisplatin. Here, we have performed detailed solution NMR and ESI-MS experiments to investigate the effect of Cu(I) binding on the reactions of Atox1 with two antitumor active trans-platinum agents, trans-EE and trans-PtTz. Results indicate that, similar to the reaction of cisplatin, copper coordination also enhances the platination of Atox1 by two trans-platinum complexes, and platinum binds to the copper coordinating residues. However, copper binding promotes the trans-platinum transfer from Atox1 to dithiothreitol (DTT). This result is in contrast to the reaction of Atox1 with cisplatin, in which the presence of copper largely suppresses the platination of DTT. Additionally, both apo- and Cu-l-Atox1 react faster with trans-platinum complexes than with cisplatin, however, less protein aggregation is observed in the reaction of trans-platinum complexes. These results indicate that the roles of Atox1 in the regulation of cellular trafficking of platinum drugs are dependent on the coordination configurations. |
| 语种 | 英语 |
| WOS记录号 | WOS:000333565800010 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/51615]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Tian, Changlin |
| 作者单位 | 1.Univ Sci & Technol China, CAS High Magnet Field Lab, CAS Key Lab Soft Matter Chem, Dept Chem, Hefei 230026, Anhui, Peoples R China 2.Univ Sci & Technol China, Collaborat Innovat Ctr Suzhou Nano Sci & Technol, Hefei 230026, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, CAS Key Lab Analyt Chem Living Biosyst, Beijing 100080, Peoples R China 4.Univ Sci & Technol China, Sch Life Sci, Hefei Natl Lab Microscale Phys Sci, Hefei 230026, Anhui, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xi, Zhaoyong,Guo, Wei,Tian, Changlin,et al. Copper binding modulates the platination of human copper chaperone Atox1 by antitumor trans-platinum complexes[J]. METALLOMICS,2014,6(3):491-497. |
| APA | Xi, Zhaoyong,Guo, Wei,Tian, Changlin,Wang, Fuyi,&Liu, Yangzhong.(2014).Copper binding modulates the platination of human copper chaperone Atox1 by antitumor trans-platinum complexes.METALLOMICS,6(3),491-497. |
| MLA | Xi, Zhaoyong,et al."Copper binding modulates the platination of human copper chaperone Atox1 by antitumor trans-platinum complexes".METALLOMICS 6.3(2014):491-497. |
入库方式： OAI收割
来源：化学研究所
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