Download MendeleyLigand-Based Design of Allosteric Retinoic Acid Receptor-Related Orphan Receptor gamma t (ROR gamma t) Inverse Agonists.
Meijer, F.A., Doveston, R.G., de Vries, R.M.J.M., Vos, G.M., Vos, A.A.A., Leysen, S., Scheepstra, M., Ottmann, C., Milroy, L.G., Brunsveld, L.(2020) J Med Chem 63: 241-259
- PubMed: 31821760 Search on PubMedSearch on PubMed Central
- DOI: https://doi.org/10.1021/acs.jmedchem.9b01372
- Primary Citation Related Structures:
6SAL - PubMed Abstract:
Retinoic acid receptor-related orphan receptor γt (RORγt) is a nuclear receptor associated with the pathogenesis of autoimmune diseases. Allosteric inhibition of RORγt is conceptually new, unique for this specific nuclear receptor, and offers advantages over traditional orthosteric inhibition. Here, we report a highly efficient in silico-guided approach that led to the discovery of novel allosteric RORγt inverse agonists with a distinct isoxazole chemotype. The the most potent compound, 25 ( FM26 ), displayed submicromolar inhibition in a coactivator recruitment assay and effectively reduced IL-17a mRNA production in EL4 cells, a marker of RORγt activity. The projected allosteric mode of action of 25 was confirmed by biochemical experiments and cocrystallization with the RORγt ligand binding domain. The isoxazole compounds have promising pharmacokinetic properties comparable to other allosteric ligands but with a more diverse chemotype. The efficient ligand-based design approach adopted demonstrates its versatility in generating chemical diversity for allosteric targeting of RORγt.
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems , Technische Universiteit Eindhoven , Den Dolech 2 , 5612 AZ Eindhoven , The Netherlands.
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