Regulated Transcription of Human Matrix Metalloproteinase 13 (MMP13) and Interleukin-1β (IL1B) Genes in Chondrocytes Depends on Methylation of Specific Proximal Promoter CpG Sites

Abstract excerpt

The role of DNA methylation in the regulation of catabolic genes such as MMP13 and IL1B, which have sparse CpG islands, is poorly understood in the context of musculoskeletal diseases. We report that demethylation of specific CpG sites at -110 bp and -299 bp of the proximal MMP13 and IL1B promoters, respectively, detected by in situ methylation analysis of chondrocytes obtained directly from human cartilage,...

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