Fluorescent iridium(<scp>iii</scp>) coumarin-salicylaldehyde Schiff base compounds as lysosome-targeted antitumor agents
作者:Cong Liu、Xicheng Liu、Xingxing Ge、Qinghui Wang、Lei Zhang、Wenjing Shang、Yue Zhang、Xiang Ai Yuan、Laijin Tian、Zhe Liu、Jinmao You
DOI:10.1039/d0dt00627k
日期:——
coefficient: ∼0.7), damaged the integrity of the lysosomes, and induced apoptosis. The compounds could also decrease the mitochondrial membrane potential, catalyze the oxidation of the coenzyme (nicotinamide-adenine dinucleotide) and improve the levels of the intracellular reactive oxygen species, following an antitumor mechanism of oxidation. Additionally, these compounds could block the metastasis of tumor
制备并表征了六种荧光半三明治铱(iii)香豆素-水杨醛席夫碱(O ^ N)化合物([(η5-Cp*)Ir(O ^ N)Cl]。香豆素单元的引入增加了这些化合物的抗肿瘤活性(IC50:9.9±0.1μM-40.7±12.9μM),其中最好的抗癌活性几乎是临床顺铂的两倍。激光共聚焦显微镜的结果表明,这些化合物具有能量依赖性细胞摄取机制,积累在溶酶体中(Pearson共定位系数:〜0.7),破坏了溶酶体的完整性,并诱导了细胞凋亡。这些化合物还可以降低线粒体膜电位,催化辅酶(烟酰胺-腺嘌呤二核苷酸)的氧化并提高细胞内活性氧的含量,遵循抗氧化机制。另外,这些化合物可以阻断肿瘤细胞的转移。最重要的是,这些铱(iii)化合物显示出作为具有双重功能的抗肿瘤药的潜力:溶酶体损伤和抗转移。