{Reference Type}: Journal Article {Title}: Azologs of the Fatty Acid Mimetic Drug Cinalukast Enable Light-Induced PPARα Activation. {Author}: Sai M;van Herwijnen N;Merk D; {Journal}: ChemMedChem {Volume}: 0 {Issue}: 0 {Year}: 2024 Jun 19 {Factor}: 3.54 {DOI}: 10.1002/cmdc.202400327 {Abstract}: Photo-switchable nuclear receptor modulators ("photohormones") enable spatial and temporal control over transcription factor activity and are valuable precision tools for biological studies. We have developed a new photohormone chemotype by incorporating a light-switchable motif in the scaffold of a cinalukast-derived PPARα ligand and tuned light-controlled activity by systematic structural variation. An optimized photohormone exhibited PPARα agonism in its light-induced (Z)-configuration and strong selectivity over related lipid-activated transcription factors representing a valuable addition to the collection of light-controlled tools to study nuclear receptor activity.