(b) Semi-quantitative analysis of the expression level of each protein and the LC3-II/LC3-I ratio (mean±s.d., n=3). *P0.05 versus value of WT EC (analysis of variance (ANOVA)); #P0.05 versus value of Atg5−/− EC (ANOVA); 'NS' indicates not significant versus value of WT EC (ANOVA). 