Fig. 6
From: ATG5 and ATG7 induced autophagy interplays with UPR via PERK signaling
ATG5 and ATG7 influenced on autophagy, apoptosis and cell cycle through PERK/Nrf2 signaling. a The ER stress proteins were analysed by western blotting in Ad-GFP, Ad-ATG5 + Ad-ATG7,Ad-ATG5 + Ad-ATG7 + siPERK,Ad-ATG5 + Ad-ATG7 + siNrf2 and Ad-ATG5+ Ad-ATG7 + siPERK+siNrf2 induced chondrocytes. b The levels of ER stress proteins were normalized to β-actin. c Determination of autophagy and apoptosis proteins expression by western blotting in Ad-GFP, Ad-ATG5 + Ad-ATG7, Ad-ATG5 + Ad-ATG7 + siPERK,Ad-ATG5 + Ad-ATG7 + siNrf2 and Ad-ATG5+ Ad-ATG7 + siPERK+ siNrf2 induced chondrocytes. dThe levels of related proteins were normalized to β-actin. e FCM analysis was used to calculate the percentage of apoptotic cells at the time point of 24 h. The apoptosis rate were increased when combined treatment with silencing of PERK or Nrf2. Experiments were repeated 3 times, Representative images are shown. f Analysis of cell apoptosis. Data come from 3 independent experiments. g FCM analysis indicated that the S phase percentage were decreased compared to that of the control groups when combine infected with silencing of PERK or Nrf2 in C28I2 cells. Experiments were repeated 3 times, Representative images are shown. h Percentage of cells at each phase in different groups. *P < 0.05, **P < 0.01 compared with the controls. Values are means ± SD n = 3). (1:Ad-GFP, 2:Ad-ATG5 + Ad-ATG7, 3:Ad-ATG5 + Ad-ATG7 + siPERK, 4:Ad-ATG5 + Ad-ATG7 + siNrf2, 5:Ad-ATG5 + Ad-ATG7 + siPERK+ siNrf2)