School of Science, Western Sydney University, Sydney, NSW 2751, Australia.
Ingham Institute, Sydney, NSW 2170, Australia.
Int J Mol Sci. 2024 Feb 11;25(4):2181. doi: 10.3390/ijms25042181.
Kinetically inert platinum(IV) complexes are a chemical strategy to overcome the impediments of standard platinum(II) antineoplastic drugs like cisplatin, oxaliplatin and carboplatin. In this study, we reported the syntheses and structural characterisation of three platinum(IV) complexes that incorporate 5-benzyloxyindole-3-acetic acid, a bioactive ligand that integrates an indole pharmacophore. The purity and chemical structures of the resultant complexes, , and were confirmed via spectroscopic means. The complexes were evaluated for anticancer activity against multiple human cell lines. All complexes proved to be considerably more active than cisplatin, oxaliplatin and carboplatin in most cell lines tested. Remarkably, demonstrated the greatest anticancer activity, displaying GI values between 1.2 and 150 nM. Enhanced production of reactive oxygen species paired with the decline in mitochondrial activity as well as inhibition of histone deacetylase were also demonstrated by the complexes in HT29 colon cells.
动力学惰性的铂(IV)配合物是克服顺铂、奥沙利铂和卡铂等标准铂(II)抗肿瘤药物障碍的一种化学策略。在这项研究中,我们报告了三种铂(IV)配合物的合成和结构表征,这些配合物包含 5-苄氧基吲哚-3-乙酸,这是一种整合吲哚药效团的生物活性配体。通过光谱手段确认了所得配合物 、 和 的纯度和化学结构。评估了这些配合物对多种人类细胞系的抗癌活性。在大多数测试的细胞系中,所有配合物都被证明比顺铂、奥沙利铂和卡铂活性高得多。值得注意的是,在 HT29 结肠细胞中, 表现出最强的抗癌活性,GI 值在 1.2 到 150 nM 之间。还证明了配合物增强了活性氧的产生,同时降低了线粒体活性,并抑制了组蛋白去乙酰化酶。
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