循环金属化伊米达/Pyrazole-Imine IridiumIII复合物的增强抗癌选择性,通过从阴离子形式切换到双子形式
Zhe Liu1, Kangning Lai1, Pengwei Li1
1Key Laboratory of Life-Organic Analysis of Shandong Province, Key Laboratory of Green Natural Products and Pharmaceutical Intermediates in Colleges and Universities of Shandong Province, School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, P. R. China.
Inorganic chemistry
|February 3, 2025
概括
兹维特虹 (III) 复合体显示出有前途的抗癌活性和对癌细胞比正常细胞有更强的选择性. 这些复杂物通过ROS生成和线粒体脱极化诱导细胞死亡,为癌症治疗提供了新的途径.
科学领域:
- 无机化学 无机化学 有机化学
- 药用化学 医学化学
- 材料科学 材料科学 材料科学
背景情况:
- 循环金属化 (III) 复合物因其抗癌潜力而得到认可.
- (III) 复合物的生物活性对电荷和连接物修饰很敏感.
- 在癌症研究中,Zwitterionic iridium (III) 复合物还没有得到充分的研究.
研究的目的:
- 为了合成和表征新的zwitterionic循环金属化伊米达/皮拉-伊米因- (III) 复合物.
- 为了比较zwitterionic iridium(III) 复合物的抗癌活性和选择性,与它们的阴离子对应物进行比较.
- 阐明由这些复杂物诱导的细胞吸收机制和细胞死亡途径.
主要方法:
- 复合和表征的复合物和的复合物.
- 用于结构阐明的X射线晶体学.
- 在体外细胞毒性测定对A549,HeLa,HepG2癌细胞和BEAS-2B正常细胞.
- 使用流式细胞计量进行细胞吸收研究.
- 分析反应性氧物种 (ROS) 生成和线粒体膜潜力 (MMP) 分极化.
- 亡测定. 亡测定. 死亡测定.
主要成果:
- 通过X射线结晶学证实了cationic和zwitterionic和 (III) 复合物的结构差异.
- 这两种复杂型都对测试的癌细胞系表现出细胞毒性 (IC50:14.3569.12μM).
- 兹维特里克复合物对A549癌细胞的选择性明显高于BEAS-2B正常细胞 (选择性指数:3.725.90),相比于电离复合物 (1.161.44).
- 观察到不同的细胞吸收机制:对于zwitterionic复合体,癌细胞的能量依赖性和正常细胞的能量独立性.
- 这两种复杂类型都诱导了ROS生成和MMP脱极化,导致了亡.
结论:
- 兹威特性 (III) 复合物为癌细胞提供了更好的选择性,这表明有针对性的癌症治疗的潜力.
- 不同的细胞吸收途径有助于增强zwitterionic复合体的选择性.
- 观察到的细胞毒性是由ROS生成,线粒体功能障碍和亡诱导介导的.
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