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Biomedical and Environmental Sciences ; (12): 539-543, 2016.
Article Dans Anglais | WPRIM | ID: wpr-296570

Résumé

To understand how differentially methylated genes (DMGs) might affect the pathogenesis of Kashin-Beck disease (KBD). Genome-wide methylation profiling of whole blood from 12 matched KBD and controls pairs was performed using a high-resolution Infinium 450 K methylation array. In total, 97 CpG sites were differentially methylated in KBD compared to the normal controls; of these sites, 36 sites were significantly hypermethylated (covering 22 genes) and 61 sites were significantly hypomethylated (covering 34 genes). Of these genes, 14 significant pathways were identified, the most significant P value pathway was type I diabetes mellitus pathway and pathways associated with autoimmune diseases and inflammatory diseases were included in this study. Subsequently, 4 CpG sites in HLA-DRB1 were validated using bisulfite sequencing polymerase chain reaction (BSP) in articular cartilage, and the results showed significant differences in the methylation status between KBD and controls, consistent with the results of the high-resolution array. These results suggested that differences in genome-wide DNA methylation exist between KBD and the controls, and the biological pathways support the autoimmune disease and inflammatory disease hypothesis of KBD.


Sujets)
Adulte , Femelle , Humains , Adulte d'âge moyen , Études cas-témoins , Analyse de regroupements , Ilots CpG , Méthylation de l'ADN , Variation génétique , Étude d'association pangénomique , Maladie de Kashin-Beck , Génétique , Séquençage par oligonucléotides en batterie
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