Figure 5. Role of thioredoxin induction by SOCS1 in down-regulation of ROS-mediated EMT signaling.
HCT116 p53 +/+ cells A. and HCT116 p53 +/+ HA & HA-SOCS1 cells B. were treated with H2O2 for different durations and antioxidant proteins were analyzed by Western blot. HA & HA-SOCS1 cells were each transfected with shRNA or shTrx and then treated by H2O2, after which changes in EMT markers and kinases were analyzed by Western blot at 2 h C. Analysis of intracellular ROS levels was performed for cells in Panel (C) at 30 min after H2O2 treatment D.