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Evaluation of Efficiency of Liposome-Entrapped Iridium(III) Complexes Inhibiting Tumor Growth In Vitro and In Vivo
Journal of Medicinal Chemistry ( IF 6.8 ) Pub Date : 2024-09-12 , DOI: 10.1021/acs.jmedchem.4c01026 Huiyan Hu 1 , Jing Chen 1 , Fan Zhang 1 , Zhujun Sheng 1 , Yan Yang 2 , Yufeng Xie 1 , Lin Zhou 1 , Yunjun Liu 1
Journal of Medicinal Chemistry ( IF 6.8 ) Pub Date : 2024-09-12 , DOI: 10.1021/acs.jmedchem.4c01026 Huiyan Hu 1 , Jing Chen 1 , Fan Zhang 1 , Zhujun Sheng 1 , Yan Yang 2 , Yufeng Xie 1 , Lin Zhou 1 , Yunjun Liu 1
Affiliation
In this paper, three new iridium(III) complexes: [Ir(piq)2(DFIPP)]PF6 (piq = deprotonated 1-phenylisoquinoline, DFIPP = 3,4-difluoro-2-(1H-imidazo[4,5-f][1,10]phenenthrolin-2-yl)phenol, 3a), [Ir(bzq)2(DFIPP)]PF6 (bzq = deprotonated benzo[h]quinoline, 3b), and [Ir(ppy)2(DFIPP)]PF6 (ppy = deprotonated 1-phenylpyridine, 3c), were synthesized and characterized. The complexes were found to be nontoxic to tumor cells via 3-(4,5-dimethylthiazole-2-yl)-diphenyltetrazolium bromide (MTT) assay. Surprisingly, its liposome-entrapped complexes 3alip, 3blip, and 3clip on B16 cells showed strong cytotoxicity (IC50 = 13.6 ± 2.8, 9.6 ± 1.1, and 18.9 ± 2.1 μM). Entry of 3alip, 3blip, and 3clip into B16 cells decreases mitochondrial membrane potential, regulates Bcl-2 family proteins, releases cytochrome c, triggers caspase family cascade reaction, and induces apoptosis. In addition, we also found that 3alip, 3blip, and 3clip triggered ferroptosis and autophagy. In vivo studies demonstrated that 3blip inhibited melanoma growth in C57 mice with a high inhibitory rate of 83.95%, and no organic damage was found in C57 mice.
中文翻译:
脂质体包埋的铱 (III) 复合物在体外和体内抑制肿瘤生长的效率评价
在本文中,三种新的铱 (III) 配合物:[Ir(piq)2(DFIPP)]PF6(piq = 去质子化的 1-苯基异喹啉,DFIPP = 3,4-二氟-2-(1H-咪唑[4,5-f][1,10]苯蒼素-2-基)苯酚,3a),[Ir(bzq)2(DFIPP)]PF6(bzq = 去质子化的苯并[h]喹啉,3b)和[Ir(ppy)2(DFIPP)]PF6(ppy = 去质子化的 1-苯基吡啶,3c)),进行了综合和表征。通过 3-(4,5-二甲基噻唑-2-基)-二苯基四唑溴化物 (MTT) 测定发现复合物对肿瘤细胞无毒。令人惊讶的是,其脂质体包埋的复合物 3alip、3blip 和 3clip 在 B16 细胞上显示出很强的细胞毒性 (IC50 = 13.6 ± 2.8、9.6 ± 1.1 和 18.9 ± 2.1 μM)。3alip、3blip 和 3clip 进入 B16 细胞会降低线粒体膜电位,调节 Bcl-2 家族蛋白,释放细胞色素 c,触发 caspase 家族级联反应,并诱导细胞凋亡。此外,我们还发现 3alip 、 3blip 和 3clip 触发了铁死亡和自噬。体内研究表明,3blip 抑制 C57 小鼠黑色素瘤生长,抑制率高达 83.95%,在 C57 小鼠中未发现器质性损伤。
更新日期:2024-09-12
中文翻译:
脂质体包埋的铱 (III) 复合物在体外和体内抑制肿瘤生长的效率评价
在本文中,三种新的铱 (III) 配合物:[Ir(piq)2(DFIPP)]PF6(piq = 去质子化的 1-苯基异喹啉,DFIPP = 3,4-二氟-2-(1H-咪唑[4,5-f][1,10]苯蒼素-2-基)苯酚,3a),[Ir(bzq)2(DFIPP)]PF6(bzq = 去质子化的苯并[h]喹啉,3b)和[Ir(ppy)2(DFIPP)]PF6(ppy = 去质子化的 1-苯基吡啶,3c)),进行了综合和表征。通过 3-(4,5-二甲基噻唑-2-基)-二苯基四唑溴化物 (MTT) 测定发现复合物对肿瘤细胞无毒。令人惊讶的是,其脂质体包埋的复合物 3alip、3blip 和 3clip 在 B16 细胞上显示出很强的细胞毒性 (IC50 = 13.6 ± 2.8、9.6 ± 1.1 和 18.9 ± 2.1 μM)。3alip、3blip 和 3clip 进入 B16 细胞会降低线粒体膜电位,调节 Bcl-2 家族蛋白,释放细胞色素 c,触发 caspase 家族级联反应,并诱导细胞凋亡。此外,我们还发现 3alip 、 3blip 和 3clip 触发了铁死亡和自噬。体内研究表明,3blip 抑制 C57 小鼠黑色素瘤生长,抑制率高达 83.95%,在 C57 小鼠中未发现器质性损伤。