Cholesterol transport inhibitors chloroquine and imipramine behave identically to AY9944. aen expression in wing imaginal disks misexpressing Hh (top), hh.N (middle), and Ptc.DN (bottom) treated with DMSO, chloroquine, or imipramine. b Ptc localization (green top panels) and en expression (green, bottom panels) in salivary glands misexpressing Hh.N treated with DMSO, chloroquine, or imipramine. Nuclei are shown in red