Liver-specific RCAN1.4 overexpression alleviates CCl4-induced liver fibrosis. (A) Representative RCAN1, H&E, Masson, Sirius red, and α-SMA staining of liver tissue sections. (B) Serum ALT and AST levels. (C) Protein and (D) mRNA levels of RCAN1.4, COL1a1 and α-SMA in primary hepatic stellate cells. (E) Protein levels of C-myc, Cyclin D1, Bax, Bcl2, and cleaved-caspase3. *p<0.05, **p<0.01, ***p<0.001 compared to the vehicle group, #p<0.05, ##p<0.01, ###p<0.001 compared to rAAV8-empty-treated vehicle group, $p<0.05, $$p<0.01, $$$p<0.001 compared to rAAV8-RCAN1.4-treated vehicle group, @p<0.05, @@p<0.01, as indicated. For all panels, data represent the mean ± s.e.m. for 3-4 independent experiments.