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Histone Lys demethylase KDM3C demonstrates anti‐inflammatory effects by suppressing NF‐κB signaling and osteoclastogenesis
Author(s) -
Lee Jae Young,
Mehrazarin Shebli,
Alshaikh Abdullah,
Kim Sol,
Chen Wei,
Lux Renate,
Gwack Yousang,
Kim Reuben H.,
Kang Mo K.
Publication year - 2019
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fj.201900154rr
Subject(s) - demethylase , nf κb , histone , chemistry , microbiology and biotechnology , signal transduction , cancer research , biology , biochemistry , gene
Histone Lys‐specific demethylases (KDMs) play a key role in many biological processes through epigenetic mechanisms. However, the role of KDMs in inflammatory responses to oral bacterial infection is poorly understood. Here, we show a novel regulatory role of KDM3C in inflammatory responses to oral bacterial infection. KDM3C expression is transiently suppressed in human and mouse macrophages exposed to LPS from Porphyromonas gingivalis ( Pg LPS). Loss of KDM3C in both human and mouse macrophages led to notable induction of proinflammatory cytokines in response to Pg LPS stimulation. Also, KDM3C depletion led to strong induction of p65 phosphorylation and accelerated nuclear translocation in cells exposed to Pg LPS. Kdm3C knockout (KO) in mice led to increased alveolar bone destruction upon induction of experimental periodontitis or pulp exposure compared with those of the wild‐type (WT) littermates. The Kdm3C KO mice also revealed an increased number of osteoclasts juxtaposed to the bony lesions. We also confirmed enhanced osteoclastogenesis by bone marrow–derived macrophages isolated from the Kdm3C KO compared with the WT controls. These findings suggest an anti‐inflammatory function of KDM3C in regulating the inflammatory responses against oral bacterial infection through suppression of NF‐κB signaling and osteoclastogenesis.—Lee, J. Y., Mehrazarin, S., Alshaikh, A., Kim, S., Chen, W., Lux, R., Gwack, Y., Kim, R. H., Kang, M. K. Histone Lys demethylase KDM3C demonstrates anti‐inflammatory effects by suppressing NF‐κB signaling and osteoclastogenesis. FASEB J. 33, 10515–10527 (2019). www.fasebj.org