Figure 1
From: Reduced levels of SCD1 accentuate palmitate-induced stress in insulin-producing β-cells
SCD1 mRNA levels, fatty acid oxidation and glucose-stimulated insulin secretion in MIN6 cells transfected with SCD1 siRNA. MIN6 cells were transfected with siRNA targeted towards SCD1 (black bar) or with nonsense siRNA (Mock; white bar). After 72 hours culture, SCD1 transcript levels were measured (panel A). Fatty acid oxidation (panel B) and levels of p-AMPK (panel C) were measured 72 hours post-transfection in mock-transfected and SCD1 KD cells. Fatty acid oxidation was measured after 24 or 48 hours exposure to 0.25 mM palmitate (panel D). MIN6 cells transfected with mock siRNA or SCD1 siRNA were stimulated with 2 or 20 mM glucose. After stimulation, secreted insulin was measured (panel E). Results are means ± SEM from 4-6 individual experiments. *P < 0.05 denotes change compared to mock-transfected cells.