A highly selective probe for ratiometric imaging peroxynitrite in living cells and in vivo

Bioorg Chem. 2022 Nov:128:106055. doi: 10.1016/j.bioorg.2022.106055. Epub 2022 Jul 22.

Abstract

In this study, we constructed and displayed a ratiometric fluorescent probe JQ-2 for detecting ONOO-. The probe JQ-2 showed a ratiometric signal for visualizing ONOO- with a rapid response and high selectivity over a panel of biological analytes. Moreover, the JQ-2 has near-infrared emission (657 nm), which provides an excellent basis for the practical application in biological systems. The probe JQ-2 possessed low cytotoxicity and excellent cell membrane permeability, which can specifically visualize the exogenous and endogenous ONOO- in vitro and vivo by emission in two channels. Meanwhile, JQ-2 can be used for diagnosing drug-induced liver injury by visualizing and monitoring the fluctuations of endogenous ONOO-. Therefore, JQ-2 provided a potential tool for precisely detecting the fluctuation of ONOO- in biological systems to understand physiological and pathological process.

Keywords: Bioimaging; Drug-induced liver injury; Fluorescence; Peroxide nitrite.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Chemical and Drug Induced Liver Injury*
  • Fluorescent Dyes
  • Humans
  • Optical Imaging
  • Peroxynitrous Acid*

Substances

  • Fluorescent Dyes
  • Peroxynitrous Acid