Junjie Du, Jihong Yang* and Lingbing Meng Pages 1 - 11 ( 11 )
Background: Diabetes is a chronic metabolic disease characterized by disorders of glucose and lipid metabolism. Its most serious microvascular complication is diabetic nephropathy (DN), which is characterized by varying degrees of proteinuria and progressive glomerulosclerosis, eventually progressing to end-stage renal failure.
Objective: The aim of this research is to identify hub genes which might serve as genetic markers to enhance the diagnosis, treatment, and prognosis of DN.
Method: The procedures of the study include access to public data, identification of differentially expressed genes (DEGs) by GEO2R, and functional annotation of DEGs using enrichment analysis. Subsequently, construction of the protein-protein interaction (PPI) network and identification of significant modules were performed. Finally, the hub genes were identified and analyzed, including clustering analysis, Pearson’s correlation coefficient analysis, and multivariable linear regression analysis.
Results: Between the GSE30122 and GSE1009 datasets a total of 142 DEGs were identified, which were mainly enriched in cell migration, platelet activation, glomerulus development, glomerular basement membrane development, focal adhesion, regulation of actin cytoskeleton, and the PI3K-AKT signaling pathway. The PPI network was composed of 205 edges and 142 nodes. A total of 10 hub genes (VEGFA, NPHS1, WT1, PODXL, TJP1, FYN, SULF1, ITGA3, COL4A3, and FGF1) were identified from the PPI network.
Conclusion: The DEGs between DN and control glomeruli samples may be involved in the occurrence and development of DN. We speculated that hub genes may be important inhibitory genes in the pathogenesis of diabetic nephropathy, so they are expected to become the new gene targets for the treatment of DN.
Diabetic nephropathy; bioinformatics technology; differentially expressed genes; hub genes; glomeruli; public data.
Nephrology Department, Peking University Fifth School of Clinical Medicine，Beijing Hospital, National Center of Gerontology, No.1 Dahua Road, Dong Dan, Beijing 100730, P. R. , Nephrology Department, Peking University Fifth School of Clinical Medicine，Beijing Hospital, National Center of Gerontology, No.1 Dahua Road, Dong Dan, Beijing 100730, P. R. , Neurology Department, Beijing Hospital, National Center of Gerontology, No.1 Dahua Road, Dong Dan, Beijing 100730, P. R.