Novel genes in brain tissues of EAE-induced normal and obese mice: Upregulation of metal ion-binding protein genes in obese-EAE mice
- Novel genes in brain tissues of EAE-induced normal and obese mice: Upregulation of metal ion-binding protein genes in obese-EAE mice
- 권오승; 정병화; 강민정; 손정현; 박주형; 김기훈; 민호필; 성창민; 라하만; Mahbub Hasan; Ji-Eun Seo; Won Sang Park
- experimental autoimmune encephalomyelitis; gene microarray; diet-induced obesity; metal ion-binding protein genes
- Issue Date
- VOL 343-336
- Experimental autoimmune encephalomyelitis (EAE) is an inflammatory autoimmune disease of the central nervous system resulting from degeneration of the myelin sheath. This study is aimed to identify differentially expressed genes (DEGs) in the brain of EAE-induced normal diet (ND) mice and high-fat diet (HFD)-induced obese mice, and to identify novel genes responsible for elucidating the mechanism of the disease. Purified mRNA samples from the brain tissue were analyzed for gene microarray and validated by real-time RT-PCR. DEGs were identified if significant changes greater than 1.5-fold or less than 0.66-fold were observed (p < 0.05). Pathway construction and functional categorization were performed using the Kyoto encyclopedia of genes and genomes pathways and gene ontology (GO) analysis. HFD-EAE mice showed more severe disease symptoms than ND-EAE mice. From GO study, fold changes of HFD-EAE to ND-EAE genes indicated that the genes were significantly associated to the pathways related with the immune response, antigen presentation, and complement activation. The genes related with metal ion-binding proteins were upregulated in HFD-EAE and ND-EAE mice. Upregulation of Cul9, Mast2, and C4b expression is significantly higher in HFD-EAE mice than ND-EAE mice. Cul9, Mast2, C4b, Psmb8, Ly86, and Ms4a6d were significantly upregulated in both ND- and HFD-EAE mice. Fcgr4, S3-12, Gca, and Zdhhc4 were upregulated only in ND-EAE, and Xlr4b was upregulated only in HFD-EAE mice. And significant upregulated genes of metal ion-binding proteins (Cul9 and Mast2) were observed in HFD-EAE mice.
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