Abstract
Abstract Disclosure: A. Jimenez-Panizo: None. The glucocorticoid receptor (GR) is a ubiquitously expressed transcription factor that controls metabolic and homeostatic processes essential for life. This receptor exerts its functions by binding to corticosteroids through its ligand-binding domain (LBD), which harbors a hydrophobic pocket where ligands are encapsulated. Synthetic glucocorticoids, as Dexamethasone, are widely used in the clinic for the treatment of chronic inflammatory diseases. Unfortunately, their prolonged use is associated with critical side effects and most of the mechanisms underlying these collateral issues are still unknown. In this work, we present a deep biochemical and biophysical analysis showing how small molecules are able to bind a new allosteric pocket in solution and how these compounds can modulate GR transcriptional activity in cells. These findings can be essential to further understand GR signaling and how to better design synthetic corticosteroids to avoid side effects. Presentation: Saturday, June 17, 2023
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