2-Acetylpyridine acetylhydrazone (H2AcMe), 2-benzoylpyridine acetylhydrazone (H2BzMe) and complexes [Cu(H2AcMe)Cl2] (1) and [Cu(H2BzMe)Cl2] (2) were assayed for their cytotoxicity against wild type p53 U87 and mutant p53 T98 glioma cells, and against MRC-5 fibroblast cells. Compounds 1 and 2 proved to be more active than the corresponding hydrazones against U87, but not against T98 cells. Compound 1 induced higher levels of ROS than H2AcMe in both glioma cell lines. H2AcMe and 1 induced lower levels of ROS in MRC5 than in U87 cells. Compound 2 induced lower levels of ROS in MRC5 than in T98 cells. The cytotoxic effect of 1 in U87 cells could be related to its ability to provoke the release of ROS, suggesting that the cytotoxicity of 1 might be somehow p53 dependent.
对
2-乙酰基吡啶乙酰腙(H2AcMe)、2-苯甲酰基
吡啶乙酰腙(H2BzMe)和复合物[Cu(H2AcMe)Cl2](1)和[Cu(H2BzMe)Cl2](2)对野生型 p53 U87 和突变型 p53 T98 神经胶质瘤细胞以及 MRC-5 成纤维细胞的细胞毒性进行了检测。事实证明,化合物 1 和 2 对 U87 细胞比相应的酰
肼类化合物更有效,但对 T98 细胞无效。在两种胶质瘤
细胞系中,化合物 1 诱导的 ROS
水平都高于 H2AcMe。在 MRC5 细胞中,H2AcMe 和 1 诱导的 ROS
水平低于 U87 细胞。化合物 2 在 MRC5 中诱导的 ROS
水平低于 T98 细胞。1 在 U87 细胞中的细胞毒性作用可能与其激发 ROS 释放的能力有关,这表明 1 的细胞毒性可能在某种程度上依赖于 p53。