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Metabolic-epigenetic coupling in osteoclast differentiation

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Osteoclasts are required for bone resorption. A new study in mice indicates that osteoclast differentiation is stabilized by DNA methylation at Irf8 (encoding interferon regulatory factor 8) mediated by DNA methyltransferase 3a (Dnmt3a), which suppresses Irf8 gene expression. The activity of Dnmt3 in osteoclasts requires elevated oxidative metabolism.

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Figure 1: The role of DNA methylation in osteoclast differentiation.

Marina Corral Spence/Nature Publishing Group

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Correspondence to Lionel B Ivashkiv.

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Ivashkiv, L. Metabolic-epigenetic coupling in osteoclast differentiation. Nat Med 21, 212–213 (2015). https://doi.org/10.1038/nm.3815

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