Wogonin inhibits osteoclast formation induced by lipopolysaccharide

Sungil Jang, Eun Jung Bak, Minyoung Kim, Jin Moon Kim, Won Yoon Chung, Jeong Heon Cha, Yun Jung Yoo

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


To evaluate the inhibitory activity of wogonin against lipopolysaccharide (LPS)-induced bone resorption, we investigated the effect of wogonin on osteoclastogenesis induced by LPS. Wogonin inhibited LPS-induced osteoclastogenesis in co-cultures of mouse calvaria-derived osteoblasts and bone marrow-derived preosteoclasts. Wogonin also suppressed osteoclastogenesis in LPS-injected mouse calvaria. In osteoblasts, the upregulation of receptor activator of nuclear factor-κB (RANKL) expression and the downregulation of osteoprotegerin (OPG) expression by LPS were inhibited by wogonin. Wogonin and NS-398, a COX-2 inhibitor, suppressed LPS-stimulated PGE2 production in osteoblasts. NS-398 inhibited the effect of LPS on RANKL and OPG expression in osteoblasts. These results suggest that wogonin acts as an inhibitor of LPS-induced osteoclastogenesis through downregulation of RANKL and upregulation of OPG expression via blockage of PGE2 production. Based on these results, wogonin has potential for use as a therapeutic agent in bacteria-induced bone resorption.

Original languageEnglish
Pages (from-to)964-968
Number of pages5
JournalPhytotherapy Research
Issue number7
Publication statusPublished - 2010 Jul

All Science Journal Classification (ASJC) codes

  • Pharmacology


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