Transition metal complexes with 6,7-dichloro-5,8-quinolinedione as mitochondria-targeted anticancer agents

Transition metal complexes with 6,7-dichloro-5,8-quinolinedione as mitochondria-targeted anticancer agents
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过渡金属与 6,7-二氯-5,8-喹啉二酮的配合物作为线粒体靶向抗癌剂

DOI:
10.1016/j.poly.2020.114482
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发表时间:
2020-05
期刊:
影响因子:
2.6
通讯作者:
Hong Liang
Hong Liang
中科院分区:
化学3区
文献类型:
--
作者:
Bi-Qun Zou;Xiao-Ling Huang;Qi-Pin Qin;Zhen-Feng Wang;Xue-Yu Wu;Ming-Xiong Tan;Hong Liang

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其中,一系列过渡金属配合物,[锌(DQ)2(CH3OH)2](1),[锌(DMQ)2(CH3OH)2](2),[Co(DQ)2(CH3OH)2](3),[Co(DMQ)2(CH3OH)2](4),[Ni(DQ)2(CH3OH)2](5),[Cu(DMQ)2(CH3OH)2](6),合成了含6,7-二氯-5,8-喹啉二酮(DQ)和6,7-二氯-2-甲基-5,8-喹啉二酮(DMQ)配体的[Mn(DQ)2(H2O)2](7)和[Mn(DMQ)2(H2O)2](8)。化合物1-8对HeLa(宫颈癌细胞)、MCF-7(乳腺癌细胞)、Hep-G2(肝癌细胞)、T-24(膀胱癌细胞)和SK-OV-3(卵巢癌细胞)显示了明显的抗肿瘤活性。有趣的是,化合物1-8对人宫颈HeLa细胞的细胞毒性高于顺铂,而对HL-7702非致瘤细胞的细胞毒性低于顺铂。机制研究表明,化合物1和2使细胞周期停滞于G1期,并通过线粒体功能障碍途径诱导癌细胞死亡。2的细胞毒性高于1。1和2的不同生物学行为可能与6,7-二氯-2-甲基-5,8-喹啉二酮(DMQ)配体上存在2-甲基有关。总之,我们的研究表明,6,7-二氯-2-甲基-5,8-喹啉二酮与锌(II)的配合物2具有作为线粒体靶向金属抗癌药物的开发潜力。
Herein, a series of transition metal complexes, [Zn(DQ)2(CH3OH)2] (1), [Zn(DMQ)2(CH3OH)2] (2), [Co(DQ)2(CH3OH)2] (3), [Co(DMQ)2(CH3OH)2] (4), [Ni(DQ)2(CH3OH)2] (5), [Cu(DMQ)2(CH3OH)2] (6), [Mn(DQ)2(H2O)2] (7) and [Mn(DMQ)2(H2O)2] (8), containing 6,7-dichloro-5,8-quinolinedione (DQ) and 6,7-dichloro-2-methyl-5,8-quinolinedione (DMQ) ligands have been synthesized and characterized as potential antitumor agents. These complexes1–8exhibited evident anti-tumor activity in HeLa (cervical), MCF-7 (breast), Hep-G2 (hepatoma), T-24 (bladder), and SK-OV-3 (ovarian) human cancer cells. Interestingly, complexes1–8showed higher cytotoxicity than cisplatin against human cervical HeLa cells, and less cytotoxicity on the HL-7702 nontumorigenic cells. Mechanism studies suggested that complexes1and2arrested the cell cycle in the G1 phase and induced cancer cell death through mitochondrial dysfunction pathways. The cytotoxicity of2was higher than that of1. The different biological behavior of1and2may correlate with the presence of a 2-methyl group in 6,7-dichloro-2-methyl-5,8-quinolinedione (DMQ) ligand. In general, our study demonstrated that Zn(II) complex2with 6,7-dichloro- 2-methyl-5,8-quinolinedione showed high potential to be developed as a mitochondria-targeted metal antitumor agent.
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