GW3965 recruits the steroid receptor coactivator 1 to human LXRα with EC50 of 125 nM in a cell-free ligand-sensing assay. [1] GW3965 shows a potent antagonistic activity against hLXRα and hLXRβ in cell-based assays with EC50 of 190 nM and 30 nM, respectively. Besides, GW3965 also sows excellent selectivity over other nuclear receptors. [1] In human islets, GW3965 (1 μM) reduces expression of selected pro-inflammatory cytokines including IL-8, monocyte chemotactic protein-1 and tissue factor. [4]