Hh inhibitor, GDC-0449, blocks hepatic Hh activity in the irradiated mice.

(A) H&E staining shows less fat accumulation in hepatocytes in liver from representative irradiated mice with GDC-0449 (IR+GDC) (X40). (B) Relative liver weight/body weight of mice. (C) The values of AST and ALT are graphed. (D) QRT-PCR analysis of liver mRNA from DMSO (DMSO), radiation treated mice with (IR+GDC) or without GDC-0449 (IR+DMSO) for smo, and gli2 ((n ≥4 mice/group). Mean±SD results are graphed. (E) and (F). Western blot analysis of Smo, and Gli2 (GAPDH was used as an internal control). Data shown represent one of three experiments with similar results (E: Immuoblot/F: Band density) (n ≥4 mice/group). Data represent the mean ± SD of three independent experiments (*p<0.05, **p<0.005).