GLI1 and neoplasm: Whereas Gli1 expression did not correlate with tumor size in the vehicle- or pictilisib-treated groups (Supplementary Figure S3B), a significant correlation was observed in the groups that have been treated with vismodegib, sonidegib, vismodegib/pictilisib, or sonidegib/pictilisib (Figure 2D; data was not available for HhAntag, see Material and Methods).