Gallium(III) complexes of α- N -heterocyclic piperidylthiosemicarbazones: Synthesis, structure-activity relationship, cellular uptake and activation of caspases-3/7/9
作者:Jinxu Qi、Qian Yao、Kun Qian、Liang Tian、Zhen Cheng、Yihong Wang
DOI:10.1016/j.jinorgbio.2018.05.005
日期:2018.9
Ga(III) complexes were synthesized. The structure of Ga4 and Ga5 were characterized by X-ray single crystal diffraction. We generated the related α-N-heterocycliperidinylthiosemicarbazone analogs to examine the effect of aldehydes or ketones in the Schiff base. The antitumor activity of both type ligands increased after coordination with gallium. Interestingly, the antitumor activity of gallium complexes
合成了两种类型的α-N-杂环哌啶基硫代半脲配体和相关的Ga(III)配合物。Ga4和Ga5的结构通过X射线单晶衍射表征。我们产生了相关的α-N-杂环哌啶基硫代半碳酰胺类似物,以检查席夫碱中醛或酮的作用。与镓配位后,两种类型的配体的抗肿瘤活性均增加。有趣的是,含吡啶基的镓配合物(第一类配体)的抗肿瘤活性高于含吡嗪基的配合物(第二类配体)。镓复合物显着耗尽细胞铁,导致转铁蛋白受体1上调和铁蛋白下调。它们还可以有效激活caspase家族蛋白(caspase-3 / 7/9),