Selectivity of human RORγt inhibitors.
RORγt inhibitor selectivity of Compound 1, Compound 2 or Compound 3 was assessed in nuclear hormone receptor binding assays, as measured by percent inhibition. Assays utilized reporter cells (HEK293) harboring a receptor hybrid in which the native N-terminal DNA binding domain (DBD) has been replaced with that of the yeast Gal4 DBD, with a firefly luciferase reporter gene functionally linked to a Gal4 upstream activation sequence. All compounds were dosed at 10 μM and percent inhibition calculated by relative light units (RLUs) compared to vehicle. *, repeat dose response curves failed to generate reliable IC50 values for compounds tested. RAR, RAR-related orphan receptor alpha; PPARγ, peroxisome proliferator-activated receptor gamma; TRα, thyroid hormone receptor alpha; GR, glucocorticoid receptor; LXR, liver X receptor.
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