Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 29, Issue 19, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.202203841
Keywords
gaucher disease; glycomimetics; molecular dynamics; pharmacological chaperones; photoswitches
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Piperidine-based photoswitchable derivatives have been developed as potential pharmacological chaperones for Gaucher disease. The compounds inhibit human GCase in a non-competitive manner, with the interaction occurring at an allosteric site. Experiments on GD patients' fibroblasts showed a moderate activity enhancement of the mutant GCase, indicating the potential for further improvement.
Piperidine-based photoswitchable derivatives have been developed as putative pharmacological chaperones for glucocerebrosidase (GCase), the defective enzyme in Gaucher disease (GD). The structure-activity study revealed that both the iminosugar and the light-sensitive azobenzene are essential features to exert inhibitory activity towards human GCase and a system with the correct inhibition trend (IC50 of the light-activated form lower than IC50 of the dark form) was identified. Kinetic analyses showed that all compounds are non-competitive inhibitors (mixed or pure) of GCase and the enzyme allosteric site involved in the interaction was identified by means of MD simulations. A moderate activity enhancement of mutant GCase assessed in GD patients' fibroblasts (ex vivo experiments) carrying the most common mutation was recorded. This promising observation paves the way for further studies to improve the benefit of the light-to-dark thermal conversion for chaperoning activity.
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