Journal: Frontiers in Pharmacology
Article Title: Angiotensin II-Regulated Autophagy Is Required for Vascular Smooth Muscle Cell Hypertrophy
doi: 10.3389/fphar.2018.01553
Figure Lengend Snippet: Ang II induces autophagy in A7r5 and RASMCs. (A) A7r5 cells were stimulated with Ang II 100 nM for 0, 0.5, 1, 3, 6, 12, 24, and 48 h (left panel) and with 1, 10, and 100 nM for 24 h, in presence and absence of CQ 30 μM, added for the last 4 h of stimulus (right panel). The LC3 II levels were determined by Western blot. The upper panels show the representative Western blots, whereas lower panels show the quantification of the LC3 II levels. β-Tubulin was used as loading control ( n = 4–5). (B) Primary cultures of rat aortic VSMCs (RASMCs) were stimulated with 100 nM of Ang II for 24 h in the presence and absence of CQ 30 μM, added during the last 4 h of stimulus. LC3 II levels and autophagic flux were determined by Western blot. β-Tubulin was used as loading control ( n = 4). (C) A7r5 cells were transduced with an adenovirus overexpressing LC3-GFP (ad-LC3-GFP), using a MOI of 180 and Hoechst as nuclear stain. After 24 h of incubation, cells were stimulated with 100 nM of Ang II for 24 h. During the last 4 h of stimulus, cells were then incubated in the presence or absence of 30 μM CQ. Representative images were obtained with a confocal microscope using a 40x lens and data are expressed percentage of autophagic cells ( n = 3, 30 cells per n). Scale bar = 25 μm. The results are shown as mean ± SEM. Data were analyzed using ANOVA. Newman–Keuls was used as post hoc test. ∗ p < 0.05, ∗∗∗ p < 0.001 vs. control; ## p < 0.01, ### p < 0.001 vs. Ang II 100 nM, ωωω p < 0.001 vs. CQ.
Article Snippet: Primary rat aortic vascular smooth muscle cells (RASMCs) were prepared from Sprague-Dawley rats (200–250 g).
Techniques: Western Blot, Control, Transduction, Staining, Incubation, Microscopy