GANT61 (NSC 136476) is an inhibitor for GLI1 as well as GLI2-induced transcription, inhibits hedgehog with IC50 of 5 μM in GLI1 expressing HEK293T cell, displays selectivity over other pathways, such as TNF and glucocorticoid receptor gene transactivation. GANT61 induces apoptosis and activates protective autophagy in LX-2 cells.