Minireviews
Copyright ©2014 Baishideng Publishing Group Inc.
World J Diabetes. Jun 15, 2014; 5(3): 385-392
Published online Jun 15, 2014. doi: 10.4239/wjd.v5.i3.385
Figure 2
Figure 2 Proapoptotic signals, including reactive oxygen species, activate protein kinase C-β, which in turn phosphorylates p66Shc at serine 36. Phosphorylated p66Shc translocates to the inner mitochondrial membrane and acts as a redox enzyme to amplify oxidative stress by generating H2O2. Increased H2O2, in turn, causes opening of the mitochondrial permeability transition pore and apoptosis. Protein kinase C-β (PKCβ) activated by reactive oxygen species further induces p66Shc phosphorylation. This event in turn perturbs mitochondria structure and function.