Premium
Using Monochlorobimane to Visualize Glutathione Utilization in the Developing Zebrafish ( Danio rerio ) Embryo
Author(s) -
Rastogi Archit,
TimmeLaragy Alicia R.
Publication year - 2021
Publication title -
current protocols
Language(s) - English
Resource type - Journals
ISSN - 2691-1299
DOI - 10.1002/cpz1.24
Subject(s) - danio , zebrafish , glutathione , xenobiotic , embryo , organism , biology , microbiology and biotechnology , computational biology , model organism , embryogenesis , genetics , biochemistry , enzyme , gene
Glutathione (GSH) plays fundamental roles in cellular redox buffering and is a common detoxification pathway for excretion of xenobiotics. This is especially crucial during vertebrate embryogenesis, when an organism is at one of its most vulnerable life stages. Importantly, GSH content and redox potential can dictate cell fate decisions, which can have profound consequences if altered by early life xenobiotic exposures. Owing to technical limitations, the best available method to detect and quantify changes in GSH has been high‐pressure liquid chromatography, a terminal method that prevents suborganism‐level resolution of these changes in developing embryos. Here, we describe a protocol that leverages the transparent nature of zebrafish embryos and the compatibility of monochlorobimane with the zebrafish GSH‐S‐transferase enzymes, to allow for the visualization of changes in GSH via S‐glutathionylation in a live, developing embryo. This method can find broad application in developmental biology and toxicology. © 2021 Wiley Periodicals LLC. This article was corrected on 19 July 2022. See the end of the full text for details.