Cytotoxicity of Mn-based photoCORMs of ethynyl-α-diimine ligands against different cancer cell lines: The key role of CO-depleted metal fragments
作者:Jeremie Rossier、Joachim Delasoie、Laetitia Haeni、Daniel Hauser、Barbara Rothen-Rutishauser、Fabio Zobi
DOI:10.1016/j.jinorgbio.2020.111122
日期:2020.8
A series of tricarbonyl manganese complexes bearing 4-ethynyl-2,2′-bipyridine and 5-ethynyl-1,10-phenanthroline α-diimine ligands were synthetized, characterized and conjugated to vitamin B12, previously used as a vector for drug delivery, to take advantage of its water solubility and specificity toward cancer cells. The compounds act as photoactivatable carbon monoxide-releasing molecules rapidly
合成了一系列带有4-乙炔基-2,2'-联吡啶和5-乙炔基-1,10-菲咯啉α-二亚胺配体的三羰基锰配合物,表征并与维生素B 12偶联,先前曾用作药物递送载体利用其水溶性和对癌细胞的特异性。该化合物充当可光活化的释放一氧化碳的分子,平均每秒钟迅速释放。在光辐照下相当于2.3当量的CO。测试了复合物和缀合物在黑暗中和在光激活后对乳腺癌MCF-7,肺癌A549和结肠腺癌HT29细胞系以及永生化的人支气管上皮细胞16HBE14o-的抗癌作用,致癌控制。我们的结果表明,这些分子的光诱导细胞毒性可归因于其释放的CO和其CO耗尽的金属片段(包括释放的配体)。