Effect of PPARγ activation on autophagy signaling in hMGEC. (A) A representative Western blotting image for phospho (S555)-ULK1, ULK1, phospho-AMPKα, AMPKα, and LC3B (B-D). Bar graphs showing relative folds of LC3BII, phospho-AMPKα, and phospho (S555)-ULK1 expression normalized to GAPDH, AMPKα and ULK1, respectively. Rosiglitazone and EPA treatment upregulated expression of LC3BII and phosphorylation of AMPKα and ULK1. Co-treatment of T0070907 abrogated upregulation and phosphorylation (*: P < 0.05).