(A) Xenograft tumors generated from Hep3B cells were treated with carfilzomib and sorafenib individually or in combination, or with a drug vehicle control. Growth of xenograft tumors was measured by tumor volume. Data represent mean ± SD (n = 6). Statistical analyses were performed by two-way ANOVA and sample-paired t-test. *p < 0.05, ** p < 0.01, ***p < 0.001.
(B, C) Shown are the weights and images of xenograt tumors at the end of the experiment. Data represent mean ± SD (n = 6). Statistical analyses were performed by one-way ANOVA and sample-paired t-test. *p < 0.05, ** p < 0.01, ***p < 0.001.
(D) The body weight +/− SD of mice in different treatment groups.
(E) Upper panel: Representative images of HE staining of HCC xenografted tumor sections in different treatment groups (200 × magnification); Lower panel: Representative images of Ki67 staining of HCC xenografted tumor sections in different treatment groups (200 × magnification).
(F) Quantification of IHC scores for Ki-67 staining in Hep3B xenograft tumors. Data represent mean ± SD (n = 6). Statistical analysis was performed by sample-paired t-test. *p < 0.05, ** p < 0.01, ***p < 0.001.
(G) Xenograft tumor tissues from different drug treatment groups were analyzed for cleaved caspase-3, cleaved caspase-7, cleaved caspase-9 and cleaved PARP by immunoblot. GAPDH was used as a loading control.