Direct Photocontrol of Peptidomimetics: An Alternative to Oxygen‐Dependent Photodynamic Cancer Therapy
作者:Oleg Babii、Sergii Afonin、Liudmyla V. Garmanchuk、Viktoria V. Nikulina、Tetiana V. Nikolaienko、Olha V. Storozhuk、Dmytro V. Shelest、Olga I. Dasyukevich、Liudmyla I. Ostapchenko、Volodymyr Iurchenko、Sergey Zozulya、Anne S. Ulrich、Igor V. Komarov
DOI:10.1002/anie.201600506
日期:2016.4.25
species and thereby causes cell death. A diarylethene‐derived peptidomimetic is presented that is suitable for photodynamic cancer therapy without any involvement of oxygen. This light‐sensitive molecule is not a mediator but is itself the cytotoxic agent. As a derivative of the cyclic amphiphilic peptide gramicidin S, the peptidomimetic exists in two thermally stable photoforms that are interconvertible
常规的光动力治疗策略基于光敏剂介导的通过光原位活化分子氧的原理,其导致活性氧物种的产生并由此引起细胞死亡。提出了一种由二芳基乙烯衍生的拟肽,其适用于光动力癌症治疗,而无需任何氧气的参与。该光敏分子不是介体,而是自身的细胞毒性剂。作为环状两亲性肽短杆菌肽S的衍生物,拟肽以两种热稳定的光形式存在,可以通过不同波长的光相互转换。可见光产生的异构体对肿瘤细胞的毒性比紫外线产生的异构体强得多。