Research Paper Volume 14, Issue 7 pp 3259—3275

Cholesterol-induced leucine aminopeptidase 3 (LAP3) upregulation inhibits cell autophagy in pathogenesis of NAFLD

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Figure 5. Upregulation of LAP3 by cholesterol inhibits autophagy in LO2 cells. (A and B) Representative western blotting detailing autophagic flux in CHO-treated LO2 cells (A) and quantitative analysis (B). (C and D) Evaluation of LAP3 and autophagy marker LC3 II and LC3 I expression after treatment of LO2 cells with 150 μM CHO or siLAP3 at 6 h by western blotting (C) and quantitative analysis (D). (E and F) Evaluation of LAP3 and LC3 II and LC3 I expression after treatment LO2 cell with 150 μM CHO or 14 μM bestatin at 6 h by western blotting (E) and quantitative analysis (F). (G) LO2 cells were treated with 150 μM CHO or 14 μM Bestatin for 6 h, the formation of autophagic vacuoles (→) was examined by transmission electron microscopy analysis. Data are expressed as means ± SD from three independent experiments. *p < 0.05; **p < 0.01; ***p < 0.001. A one-way ANOVA test was performed to determine the statistical significance. Abbreviations: CHO: cholesterol; DMSO: dimethyl sulfoxide.