A special o-dialdehyde fluorescent probe simultaneously sensing Hcy, GSH and its application in living cells and zebrafish imaging
作者:Yongbin Zhang、Yu Zhang、Yongkang Yue、Jianbin Chao、Fangjun Huo、Caixia Yin
DOI:10.1016/j.cclet.2021.05.016
日期:2021.9
The development of fluorescent probes enabling to distinguish Cys, Hcy and GSH has always been a considerable challenge, in particular the distinction of Hcy and other two biothiols, because Hcy has a very similar structure with Cys and a relatively lower concentration in living organisms. In this work, a special o-dialdehyde fluorescent probe, quinoline-2,3-dicarboxaldehyde (QDA), has been synthesized
能够区分Cys,Hcy和GSH的荧光探针的开发一直是一个很大的挑战,尤其是区分Hcy和其他两种生物硫醇,因为Hcy与Cys具有非常相似的结构,并且在生物体中的浓度相对较低。在这项工作中,合成了一种特殊的邻二醛荧光探针喹啉-2,3-二甲醛(QDA),并证明了在区分Hcy和GSH方面的卓越性能,这与以前报道的邻二醛不同。-二醛探针可特异性检测GSH。此外,该探针可以选择性地将Hcy和GSH与活细胞和斑马鱼中的不同信号通道区分开,这意味着它在生物学应用中具有巨大的潜力。该发现将为设计区分生物硫醇的荧光探针提供新颖的思路。