Analysis of the miRNA-mRNA Regulatory Network Reveals the Biomarker Genes in the Progression of Myocardial Ischemic Reperfusion

Abstract

Objective. Cardiac injury induced by myocardial ischemic reperfusion (MI/R) is still an intractable question in clinical, and it has been confirmed as a major reason for the development of cardiovascular disease. Bioinformatics analysis has been widely used for revealing the pathogenic mechanism of diseases. This study attempted to identify the biomarkers and reveal the regulation mechanism of MI/R injury via bioinformatics analysis. Methods. The GSE67308 and GSE74951 were obtained from the GEO database. The datasets were analyzed with GEO2R tool, and the genes with |logFC| > 2 and p value <0.05 were identified as the differentially expressed genes (DEGs). The enrichment analysis of the DEGs was performed with the DAVID database and R language. Moreover, the protein-protein interaction (PPI) network of DEGs was performed with the STRING database and then visualized with Cytoscape. Result. The results showed that 195 downregulated mRNAs and 240 downregulated mRNAs were found in GSE67308, and 11 miRNAs were found in GSE7495. 152 common genes were screened in DEGs of GSE67308 and the targets of 11 miRNAs in GSE7495. Moreover, the enrichment analysis showed that the common genes were related with inflammatory response, immune response, PI3K/AKT, NF-κB, and TNF pathways. Besides, mmu-miR-92a-3p and mmu-miR-27b-3p were identified as the hubs miRNAs, and TNF, IL1B, and IFG1 were screened as the key nodes. Conclusion. This study established a miRNA-mRNA network for cardiac injury induced by MI/R and provided the evidence concerning the molecular mechanism of MI/R injury, which provided some reference for MI/R treatment.

Bioinformatics analysis of differentially expressed genes in ischemic cardiomyopathy using GEO Database

“…The analysis revealed that DEG was enriched in metabolic pathways, oxidative phosphorylation, extracellular matrix receptor interaction, Epstein-Barr virus infection, chemokine receptor pathway, phagosomes, proteasomes, etc. Li and Chen (2022) (27) carried out an enrichment analysis, and it suggested that normal genes were correlated with inflammatory response, immune response, PI3K/AKT, NF-κB, and TNF pathways. In addition, mmu-miR-92a-3p and mmu-miR-27b-3p were identified as central miRNA, and TNF, IL1B, and IFG1 were screened as critical nodes.…”

Retracted: Analysis of the miRNA‐mRNA Regulatory Network Reveals the Biomarker Genes in the Progression of Myocardial Ischemic Reperfusion

“…Journal of Healthcare Engineering has retracted the article titled “Analysis of the miRNA-mRNA Regulatory Network Reveals the Biomarker Genes in the Progression of Myocardial Ischemic Reperfusion” [ 1 ] due to concerns that the peer review process has been compromised.…”