Design of a Practical Fluorescent Probe for Superoxide Based on Protection–Deprotection Chemistry of Fluoresceins with Benzenesulfonyl Protecting Groups
作者:Hatsuo Maeda、Kayoko Yamamoto、Iho Kohno、Leila Hafsi、Norio Itoh、Shinsaku Nakagawa、Naoko Kanagawa、Keiichiro Suzuki、Tadayuki Uno
DOI:10.1002/chem.200600522
日期:2007.2.23
for designing probes based on protection-deprotection chemistry involving fluoresceins and their benzenesulfonyl (BES) derivatives has led to the development of a much more practical superoxide (O(2) (-.)) probe than the previously reported bis(2,4-dinitro-BES) tetrafluorofluorescein (6 a). Examination of various BES derivatives, developed from the starting point of the prototype probe 6 a, yielded
一种基于荧光-荧光素及其苯磺酰基(BES)衍生物的基于保护-脱保护化学的探针设计策略,已导致比以前报道的bis(2,2)更实用的超氧化物(O(2)(-。))探针的开发。 4-二硝基-BES)四氟荧光素(6a)。从原型探针6a的起点开发的各种BES衍生物的检测产生了作为最佳试剂的4,5-二甲氧基-2-硝基-BES四氟荧光素(BESSo; 7 j)。与基于6 a的分析相比,使用BESSo的微量滴定板分析显示O(2)(-。)的检测极限提高了十倍。BESSo对O(2)(-。)的特异性明显优于对GSH或其他活性氧的特异性,并且该特异性明显高于Fe(2+)和某些还原酶。这些功能已导致开发了一种基于BESSo的测定方法,与基于HPLC的测定方法相比,该方法能够为嗜中性粒细胞释放O(2)(-。)提供更明确的结果,而无论是否受佛波肉豆蔻酸酯乙酸盐的刺激。 6个 通过使用流式细胞仪和荧光显微镜,利用BESSo