双核Cu2+-复合体破坏细胞通路并重新连接乳腺癌蛋白质组
Zeinab Ghasemishahrestani1, Simone Santiago Carvalho de Oliveira2, Rafaela Dos Santos Moraes Francisco3
1Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil; Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
Journal of proteomics
|November 19, 2025
概括
两种新的铜 (II) 复合物R9和R10对乳腺癌细胞表现出强烈的抗瘤活性,表现优于西斯. 这些基于金属的药物诱导细胞亡,并表现出癌细胞选择性,提供了一个有前途的替代疗法.
科学领域:
- 无机化学 无机化学 有机化学
- 药用化学 医学化学
- 癌症生物学 癌症生物学
背景情况:
- 全球癌症负担需要超越传统治疗的新型治疗策略.
- 基于金属的药物,特别是铜复合物,由于铜的生物学意义,是一个有前途的途径.
- 现有的基于的化疗药物面临着局限性,推动了寻找替代药物的研究.
研究的目的:
- 评估两种新型双核铜 (II) 复合物R9和R10对抗MCF-7乳腺癌细胞的抗瘤潜力.
- 为了比较R9和R10与西斯的疗效和选择性.
- 阐明作用的潜在机制,包括亡诱导和途径调节.
主要方法:
- 双核铜 (II) 复合物R9和R10的合成和表征.
- 在乳腺癌细胞的MCF-7和健康细胞的MCF10A上进行了体外细胞毒性测试 (IC50测定).
- 流细胞计用于细胞循环分析,线粒体膜潜力和反应性氧物种 (ROS) 检测.
- 道测试用于DNA碎片化和西部涂抹用于caspase9激活.
- 无标签的定量蛋白质组学,以识别差异表达的蛋白质和受影响的途径.
主要成果:
- 与西斯普拉丁相比,R9和R10对MCF-7细胞表现出更高的细胞毒性,IC50值明显较低.
- 化合物具有选择性,在健康的MCF10A细胞中观察到更高的IC50值.
- 治疗诱导了亡的特征,包括增加颗粒度,线粒体脱极化,ROS生成,亚G1细胞周期停止和DNA碎片化.
- 蛋白质组分析揭示了R10的独特分子机制,包括糖解的下调,TCA循环,氧化酸化,PI3K-Akt和无素-蛋白酶体通路.
- 治疗后,关键的亡相关蛋白质和细胞骨组件的调节失调.
结论:
- 双核铜 (II) 复合物R9和R10是针对乳腺癌细胞的强效和选择性的抗瘤剂.
- 这些复杂物通过内在途径诱导亡,并表现出与思丁不同的作用机制.
- 这些发现突出了基于铜的复合物的治疗潜力,作为新型抗癌药物,蛋白质组学提供了关键的机制性见解.
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