Fig. 2From: Higher proliferation of peritumoral endothelial cells to IL-6/sIL-6R than tumoral endothelial cells in hepatocellular carcinomaa–d Hypoxia induced IL-6 expression in PECs. Hypoxia could significantly and directly up-regulate the expression of IL-6 after 48 h in PECs, as indicated by immunocytochemistry (a), IHC (b), and RT-PCR (c). However, hypoxia had no direct effects on gp130 expression in PECs, as indicated by immunocytochemistry (a) and RT-PCR (c). Bar, 50 μmBack to article page