PUBLICATION

Caged Dexamethasone to Photo-control the Development of Embryos through Activation of the Glucocorticoid Receptor

Authors
Mandal, M., Scerbo, P., Coghill, I., Riou, J.F., Bochet, C.G., Ducos, B., Bensimon, D., Le Saux, T., Aujard, I., Jullien, L.
ID
ZDB-PUB-240214-4
Date
2024
Source
Chemistry (Weinheim an der Bergstrasse, Germany)   30(23): e202400579 (Journal)
Registered Authors
Bensimon, David, Ducos, Bertrand
Keywords
Optogenetics * caging group * Photo-control of protein activity * Caged-dexamethasone * Glucocorticoid receptor * GR-activation * Gene expression * Orthogonal inducer
MeSH Terms
none
PubMed
38350020 Full text @ Chemistry
Abstract
Efficient tools for controlling molecular functions with exquisite spatiotemporal resolution are much in demand to investigate biological processes in living systems. Here we report an easily synthesized caged dexamethasone for photo-activating cytoplasmic proteins fused to the glucocorticoid receptor. In the dark, it is stable in vitro as well as in vivo in both zebrafish (Danio rerio) and Xenopus sp, two significant models of vertebrates. In contrast, it liberates dexamethasone upon UV illumination, which has been harnessed to interfere with developmental steps in embryos of these animals. Interestingly, this new system is biologically orthogonal to the one for photo-activating proteins fused to the estrogen ERT receptor, which brings great prospect for activating two distinct proteins down to the single cell level.
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