Figure 5: SOD2-dependent production of H2O2 increases migration and invasion of SACC.

To confirm that H2O2 production induces migration and invasion of SACC, SACC-83 cells were treated with H2O2 for 24 h. The migration and invasion of SACC-83 cells were significantly higher after treatment with 25 μM H2O2 once every 6 h (A,B). Adding H2O2 increased the protein concentrations of Vimentin, Slug, Snail, ERK, p-ERK, and MMP-2 and decreased E-cadherin protein concentrations and had no affection on expression of SOD2 (C).