Journal
INTERNATIONAL JOURNAL OF MEDICAL SCIENCES
Volume 17, Issue 12, Pages 1723-1732Publisher
IVYSPRING INT PUBL
DOI: 10.7150/ijms.46456
Keywords
bioinformatical analysis; Parkinson's disease; type 2 diabetes mellitus; biomarker; lipid metabolism
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Funding
- National Key R&D Program of China [2018YFC1314700, 2018YFA0108000]
- National Natural Science Foundation of China [81572234, 81873779]
- Shanghai Education Development Foundation
- Shanghai Municipal Education Commission Shuguang Program [14SG21]
- Priority of Shanghai Key Discipline of Medicine [2017ZZ02020]
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Although increasing evidence has suggested crosstalk between Parkinson's disease (PD) and type 2 diabetes mellitus (T2DM), the common mechanisms between the two diseases remain unclear. The aim of our study was to characterize the interconnection between T2DM and PD by exploring their shared biological pathways and convergent molecules. The intersections among the differentially expressed genes (DEGs) in the T2DM dataset GSE95849 and PD dataset GSE6613 from the Gene Expression Omnibus (GEO) database were identified as the communal DEGs between the two diseases. Then, an enrichment analysis, protein-protein interaction (PPI) network analysis, correlation analysis, and transcription factor-target regulatory network analysis were performed for the communal DEGs. As a result, 113 communal DEGs were found between PD and T2DM. They were enriched in lipid metabolism, including protein modifications that regulate metabolism, lipid synthesis and decomposition, and the biological effects of lipid products. All these pathways and their biological processes play important roles in both diseases. Fifteen hub genes identified from the PPI network could be core molecules. Their function annotations also focused on lipid metabolism. According to the correlation analysis and the regulatory network analysis based on the 15 hub genes, Sp1 transcription factor (SP1) could be a key molecule since it affected other hub genes that participate in the common mechanisms between PD and T2DM. In conclusion, our analyses reveal that changes in lipid metabolism could be a key intersection between PD and T2DM, and that SP1 could be a key molecule regulating these processes. Our findings provide novel points for the association between PD and T2DM.
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