Biophysical characterization and antineoplastic activity of new bis(thiosemicarbazonato) Cu(II) complexes
作者:Elisa Palma、Filipa Mendes、Goreti Ribeiro Morais、Inês Rodrigues、Isabel Cordeiro Santos、Maria Paula C. Campello、Paula Raposinho、Isabel Correia、Sofia Gama、Dulce Belo、Vítor Alves、Antero J. Abrunhosa、Isabel Santos、António Paulo
DOI:10.1016/j.jinorgbio.2016.11.026
日期:2017.2
uptake and cytotoxicity, we have studied a new family of copper(II) complexes (CuL1-CuL4) with bis(thiosemicarbazone) (BTSC) ligands containing pendant protonable cyclic amines (morpholine and piperidine). Herein, we report on the synthesis and characterization of these new complexes, as well as on their biological performance (cytotoxic activity, cellular uptake, protein and DNA binding), in comparison
为了探索细胞摄取和细胞毒性的替代机制,我们研究了一个新的铜(II)配合物(CuL 1 - CuL 4)家族,该配合物含有双(硫代半碳a酮)(BTSC)配体,含侧链质子化环胺(吗啉和哌啶)。在这里,我们报告了这些新复合物的合成和表征,以及与亲本Cu II ATSM相比的生物学性能(细胞毒性,细胞吸收,蛋白质和DNA结合)。(ATSM =不带环胺侧基的二乙酰基-双(N4-甲基硫代半氨基甲酸酯)配合物。这些新化合物已通过一系列分析技术进行了表征,包括ESI-MS,IR光谱,循环伏安法,反相HPLC和X射线光谱。在体外细胞毒性研究表明,该铜配合物是细胞毒性的,不象相应的配体,具有类似的效力到的CuATSM不同于CuATSM,新复合物能够绕过顺铂的交叉耐药性。在质子化的环胺的存在没有导致复合物与人血清白蛋白或小牛胸腺DNA的相互作用增强,但是CuL 1 – CuL 4显示出与比较显着增强的细胞吸收C