Immunohistochemistry for GFAP (A,D), Cre-recombinase (B, E) and GFP (C,F) were performed in representative control (Ctr) (A–C) and GFAP-Cre/GFP (TG) mice (D–F). GFAP is expressed by hepatic stellate cells (HSC) in a representative Ctr mouse (A) and a representative GFAP-Cre/GFP (TG) mouse (D). HSC express Cre recombinase (E) and GFP (F) in TG mice, not in Ctr mice (B,C). (X100)