Research Article

miR-145 Alleviates Smooth Muscle Cell Phenotype Transition via ADAM17-Mediated ACE2 Shedding

Figure 4

miR-145 augments Ang II-induced ACE2-Ang-(1–7)-Mas axis activation and ADAM17 expression in VSMCs. VSMCs were treated with control, Ang II (1 μM), miR-145 mimic (100 nM), or miR-145 (100 nM) inhibitor alone or in combination for 48 hours. (a) Concentration of Ang-(1–7) in the supernatant (ELISA). (b, c) ACE2 and MASR expression from panel (e) and data are expressed as the fold of the GAPDH. (d) ADAM17 expression in groups from panel (f). (e, f) Representative figures of ACE2, MASR, and ADAM17 expression in VSMCs (Western blotting). vs. control group; vs. control group; ## vs. Ang II group; and # vs. Ang II group. All the data are expressed as mean ± SEM from three independent experiments. miRNA NC, negative control miRNA.
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