Potential involvement of leptin in carcinogenesis of hepatocellular carcinoma

Figure 1 Expression of leptin in adjacent non-tumorous liver live cells (left) and absent expression in HCC cells (right). S-P immunohistochemical staining × 200.

Figure 2 Absent expression of leptin in HCC cells, Kupffer cells and vascular endothelial cells expressed high levels of leptin. S-P immunohistochemical staining × 400.

Figure 3 Effect of leptin at different concentrations (ng/mL) on proliferation of Chang liver cells and liver cancer cells on d 5 (MTT assay). A: Effect of leptin at different concentrations (ng/mL) on proliferation of Chang liver cells on d 5 (MTT assay), B: Effect of leptin at different concentrations (ng/mL) on proliferation of liver cancer cells on d 5 (MTT assay).