The present invention provides a novel class of pro-fluorescent probes for reactive oxygen species (ROS). One exemplary probe is mitochondria peroxy yellow 1 (MitoPY1), a new type of flurophore for imaging mitochondrial H2O2 in living cells with ROS and spatial specificity. The invention also provides methods of using pro-fluorescent probes to detect analytes. One exemplary method comprises using a pro-fluorescent probe of the invention to detect an explosive.
A targetable fluorescent probe for imaging exogenous and intracellularly formed nitroxyl in mitochondria in living cells
作者:Mingguang Ren、Beibei Deng、Kai Zhou、Jian-Yong Wang、Xiuqi Kong、Weiying Lin
DOI:10.1039/c6tb03388a
日期:——
We have developed a new mitochondrial-targeted turn-on fluorescent HNO probe (Mito-HNO). Fluorescence imaging shows that Mito-HNO is suitable for ratiometric visualization of HNO within mitochondria in living cells.
A Targetable Fluorescent Probe for Imaging Hydrogen Peroxide in the Mitochondria of Living Cells
作者:Bryan C. Dickinson、Christopher J. Chang
DOI:10.1021/ja802355u
日期:2008.7.1
We present the design, synthesis, and biological applications of mitochondria peroxy yellow 1 (MitoPY1), a new type of bifunctional fluorescent probe for imaging hydrogen peroxide levels within the mitochondria of living cells. MitoPY1 combines a chemoselective boronate-based switch and a mitochondrial-targeting phosphonium moiety for detection of hydrogen peroxide localized to cellular mitochondria. Confocal microscopy and flow cytometry experiments in a variety of mammalian cell types show that MitoPY1 can visualize localized changes in mitochondrial hydrogen peroxide concentrations generated by situations of oxidative stress.