Fig. 3

Activation of the antioxidant response in MSS fibroblasts. (A,B) Both graphs show gene expression of SOD1 and SOD2 measured by real-time PCR using ΔΔCt method. (C,D) Western blot analysis of SOD1 and SOD2 in patient-derived fibroblasts (MSS) and controls (CT) shows a significant increase of SOD2 in MSS cells compared to CT cells. (E,F) The enzymatic activity of both antioxidant enzymes (SOD1 and SOD2) shows a significant raise in the pathological condition as well as the total SOD activity (G). Statistical analysis was performed using an unpaired t-test with Welch’s correction (*P < 0.05, ***P < 0.001).