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Identification of key genes potentially related to intervertebral disc degeneration by microarray analysis

ABSTRACT: Identification of key genes potentially related to intervertebral disc degeneration by microarray analysis

PROVIDER: PRJNA631995 | ENA |

REPOSITORIES: ENA

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Genome-wide DNA methylation profile analysis of human intervertebral disc degeneration

Project description:The pathophysiology of intervertebral disc (IVD) degeneration is not entirely understood; however, environmental and endogenous factors under genetic predisposition are considered to initiate the degenerative changes of human IVDs. Aberrant epigenetic alterations play a pivotal role in several diseases, including osteoarthritis. However, epigenetic alternations, including DNA methylation, in IVD degeneration have not been evaluated. The purpose of this study was to comprehensively compare the genome-wide DNA methylation profiles of human IVD tissues, specifically nucleus pulpous (NP) tissues, with early and advanced stages of disc degeneration. We conducted, for the first time, a genome-wide DNA methylation profile comparative study and observed significant differences in DNA methylation profiles between early and advanced stages of human IVD degeneration. The overview of the DNA methylation profile in the current study revealed that differentially methylated loci were identified in many genes associated with known molecules that have been reported to be relevant to IVD degeneration. Importantly, changes in DNA methylation profiles were also found in genes that regulate the major signaling pathways, such as NF-κB, MAPK, and Wnt signaling, that are well known to be responsible for the pathogenesis of human disc degeneration.

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