Identification of miRNA-mRNA regulatory network for Human Atrial Aging [miRNA]

We report an integrative analysis of miRNA-seq and mRNA-seq to identify miRNAs, genes, and miRNA-mRNA interactions for human atrial aging (AA). We found that seven miRNAs (4 upregulation and 3 downregulation) and 42 genes (23 upregulation and 19 downregulation) show differential expression between older samples and younger samples in human right atrial tissues. Pearson correlation analysis identified 114 pairs of putative miRNA-mRNA interactions for AA. Pathway enrichment analysis identified three important pathways including rhythmic process, senescence and autophagy in cancer, and positive regulation of cytokine biosynthetic process. Our study revealed novel miRNA-mRNA interaction networks and signaling pathways for AA, providing novel insights into the development of human AA. This dataset includes data generation and processing steps for the miRNA-seq data generated from twelve SR samples. Overall design: Right atrial appendages from twelve patients who received aortic valve replacement were subjected to miRNA-seq and RNA-seq. All the patients were in sinus rhythm (SR) and stratified by age into four groups (SR40, SR50, SR60, and SR70). Four age groups were matched by baseline demographic and clinical features. Differential expression analysis was carried out to identify miRNAs and genes for human AA using program edgeR. This dataset includes data generation and processing steps for the miRNA-seq data generated from twelve SR samples.