Research Article
MiR-20a-5p Regulates MPP+-Induced Oxidative Stress and Neuroinflammation in HT22 Cells by Targeting IRF9/NF-κB Axis
Figure 2
IRF9 reversed cell apoptosis inhibited by miR-20a-5p overexpression in MPP+-treated HT22 cells. HT22 cells were pretreated with miR-20a-5p mimic and/or pcDNA-IRF9 for 24 h and then treated with MPP+ (0.5 mM) for 24 h. (a and b) The protein level of IRF9 was tested by Western blot analysis. β-actin is a loading control. < 0.05 vs. pcDNA-NC. (c and d) The cell apoptosis was assessed by Annexin V FITC/PI staining flow cytometry. (e–k) The expression of Bcl-2, Cleaved-Caspase 3, Bax, AIF, and cytochrome C was determined by Western blot analysis. β-actin is a loading control. < 0.01 vs. control group, < 0.001 vs. control group, # < 0.05 vs. MPP+-treated group, ## < 0.01 vs. MPP+-treated group, & < 0.05 vs. MPP+ + miR-20a-5p mimic-cotreated group, $ < 0.05 vs. MPP+ + pcDNA-IRF9-cotreated group, and $$ < 0.01 vs. MPP+ + pcDNA-IRF9-cotreated group. Data are expressed as mean ± SD. The experiments were repeated six times.
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