Thioamido Coordination in a Thioxo-1,2,4-triazole Copper(II) Complex Enhances Nonapoptotic Programmed Cell Death Associated with Copper Accumulation and Oxidative Stress in Human Cancer Cells
作者:Saverio Tardito、Ovidio Bussolati、Monica Maffini、Matteo Tegoni、Marco Giannetto、Valeria Dall'Asta、Renata Franchi-Gazzola、Maurizio Lanfranchi、Maria Angela Pellinghelli、Claudio Mucchino、Giovanni Mori、Luciano Marchiò
DOI:10.1021/jm061174f
日期:2007.4.1
The thioamido function of [CuCl2(1H)]Cl (2) (1=4-amino-1,4-dihydro-3-(2-pyridyl)-5-thioxo-1,2,4-triazole), a cytotoxic copper complex, was converted into thioether moieties, leading to the synthesis of [CuCl2(3)]2 (4) and [CuCl2(5)] (6) (3=6-methyl-3-pyridin-2-yl-7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazine; 5=4-amino-5-ethylthio-3-(2-pyridyl)-1,2,4-triazole). These complexes were structurally characterized
具有细胞毒性的[CuCl2(1H)] Cl(2)(1 = 4-氨基-1,4-二氢-3-(2-吡啶基)-5-硫代-1,2,4-三唑)的硫酰胺基功能铜配合物,被转换成硫醚部分,导致[CuCl2(3)] 2(4)和[CuCl2(5)](6)(3 = 6-甲基-3-吡啶-2--2-基-7H)的合成-[[1,2,4] triazolo [3,4-b] [1,3,4]噻二嗪; 5 = 4-氨基-5-乙硫基-3-(2-吡啶基)-1,2,4-三唑)。对这些复合物进行了结构表征,并确定了其稳定性常数及其生物学活性。4和6的稳定性略差于2,但活性明显低于2。但是,作为2,这两种复合物均诱导了非凋亡液泡细胞死亡。在2种敏感性和非敏感性细胞类型中研究的铜摄取在敏感性细胞中明显更高,这与氧化型谷胱甘肽的增加有关。