(A) PKCι phosphorylates and activates GLI1 to amplify target gene
expression in basal cell carcinoma (BCC), a cell-intrinsic tumor with HH pathway
mutations in PTCH1 or SMO. Blue denotes inactive protein, whereas red is
active.
(B) PKCι promotes HHAT-mediated HH ligand production by phosphorylating
and activating SOX2, which binds to the HHAT promoter in
HH-driven autocrine/paracrine lung squamous cell carcinoma (LSCC) tumors.