Xylodon flaviporus-Derived Drimane Sesquiterpenoids That Inhibit Osteoclast Differentiation

Jaeyoung Kwon, Hyaemin Lee, Seung Mok Ryu, Yeongseon Jang, Hak Cheol Kwon, Yuanqiang Guo, Jong Soon Kang, Jae Jin Kim, Dongho Lee

Research output: Contribution to journalArticle


The presence of excessive osteoclasts is a major factor in skeletal diseases. The present study aimed to discover osteoclast differentiation inhibitors from the basidiomycete Xylodon flaviporus. Seven new drimane sesquiterpenoids (1-7) and 7-ketoisodrimenin-5-ene (8) were obtained and characterized by various spectroscopic methods. The isolated compounds were evaluated for their inhibitory effects against receptor activator of nuclear factor-kappa-B ligand-induced osteoclastogenesis in mouse bone marrow macrophages. Compounds 1, 3, and 6 showed potent activities with IC50 values of 1.6, 0.9, and 2.1 μM, respectively, while 4, 5, and 7 exhibited relatively weak activities with IC50 values of 10.7, 10.1, and 8.5 μM, respectively.

Original languageEnglish
Pages (from-to)2835-2841
Number of pages7
JournalJournal of Natural Products
Issue number10
Publication statusPublished - 2019 Jan 1

ASJC Scopus subject areas

  • Analytical Chemistry
  • Molecular Medicine
  • Pharmacology
  • Pharmaceutical Science
  • Drug Discovery
  • Complementary and alternative medicine
  • Organic Chemistry

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