To characterize the role of SOD2 in aiding metastasis, the plasmid containing SOD2 shRNA was transiently transfected into UM1 cells using Lipofectamine Plus reagent. Cells were tested 24 h post-transfection.
(A) Significant reduction of SOD2 protein levels and activities were observed in the SOD2 shRNA-transfected UM1 cells compared to the vector control transfected cells. *: P< 0.05.
(B, C) SOD2 knockdown inhibited the migration and invasion of UM1 cells. *: P< 0.05.
(D) UM1 cells displayed a significant decrease in H2O2 production after transfecting with the SOD2 shRNA. *:p< 0.05.
(E) The cell proliferation rate of the UM1 line was significantly inhibited after transfecting with the SOD2 shRNA. *: P< 0.05.