Journal: The Kaohsiung Journal of Medical Sciences
Article Title: Critical functions of microRNA‐30a‐5p‐E2F3 in cardiomyocyte apoptosis induced by hypoxia/reoxygenation
doi: 10.1002/kjm2.12309
Figure Lengend Snippet: miR‐30a‐5p targets E2F3 in cardiomyocytes. A, The common targets of miR‐30‐5p in five bioinformatic analysis datasets. B, Conserved binding sites of miR‐30a‐5p on the Wt and Mut 3′‐UTR of E2F3. C, A luciferase reporter construct with the Wt or Mut miR‐30a‐5p binding sequence from the 3′‐UTR of the E2F3 was transfected into H9c2 cells with miR‐30a‐5p mimics and mimic negative control (miR‐ctrl). ** P < .01, compared with miR‐ctrl. D, The mRNA level of E2F3 was detected by qRT‐PCR assay. E, The protein level of E2F3 in H9c2 cells transfected with miR‐30a‐5p mimics was detected by western blot analysis. F, The protein level of E2F3 in H9c2 cells treated H/R was detected by western blot analysis (upper panel). The expressions of E2F3 in myocardial tissue from I/R injury group and Sham group were measured by western blot (lower panel). G, H9c2 cardiomyocytes were transfected with vector or pcDNA3.1‐E2F3. The expression of E2F3 was detected by western blotting assay. H, H9c2 cardiomyocytes were transfected with vector or pcDNA3.1‐E2F3. Transfected H9c2 cardiomyocytes were subjected to H/R treatment. The proliferation of H9c2 cardiomyocytes was determined by CCK‐8 assay. I, Transfected H9c2 cardiomyocytes were subjected to H/R treatment. Cell apoptosis was detected by Annexin VFITC/PI double staining in H/R‐treated H9c2 cells. N = 3 per group. ** P < .01, compared with vector, ## P < .01, compared with H/R vector. E2F3, E2F transcription factor 3; H/R, hypoxia/reoxygenation; Mut, mutant type; Wt, wild type
Article Snippet: Expression of E2F transcription factor 3 (E2F3) siRNA (si‐E2F3) was obtained from Genepharma (Shanghai, China).
Techniques: Binding Assay, Luciferase, Construct, Sequencing, Transfection, Negative Control, Quantitative RT-PCR, Western Blot, Plasmid Preparation, Expressing, CCK-8 Assay, Double Staining, Mutagenesis