Fluorescent Imidazo[1,2‐
<i>a</i>
]pyrimidine Compounds as Biocompatible Organic Photosensitizers that Generate Singlet Oxygen: A Potential Tool for Phototheranostics
作者:Maria L. S. O. Lima、Carolyne B. Braga、Tiago B. Becher、Mikel Odriozola‐Gimeno、Miquel Torrent‐Sucarrat、Iván Rivilla、Fernando P. Cossío、Anita J. Marsaioli、Catia Ornelas
DOI:10.1002/chem.202004957
日期:2021.4.7
therapy has been used to treat a variety of diseases, however, there is continuing search for new biocompatible photosensitizers. Herein, we demonstrate for the first time that imidazo[1,2‐a]pyrimidine compounds are able to generate singlet oxygen species and can act as photosensitizers in the intracellular environment. Our results show that this class of compounds absorb and emit in the 400–500 nm
光动力疗法已经用于治疗多种疾病,但是,仍在继续寻找新的生物相容性光敏剂。在此,我们表现出的第一次咪唑并[1,2一]嘧啶化合物能够产生单线态氧物种并且可以如在细胞内环境的光敏剂起作用。我们的结果表明,这类化合物在400-500 nm区域吸收和发射,在黑暗中表现出低细胞毒性,被细胞有效吸收,在细胞内介质中发荧光,并在辐射下产生单线态氧,杀死2个以内的癌细胞。在低浓度(2.0μH&米)。咪唑[1,2- a]嘧啶化合物是潜在的光热治疗新工具,因为它们可以同时用于荧光成像和光动力疗法。