Geranylgeraniol suppresses the expression of IRAK1 and TRAF6 to inhibit NFκB activation in lipopolysaccharide-induced inflammatory responses in human macrophage-like cells

Puspo E. Giriwono, Hitoshi Shirakawa, Yusuke Ohsaki, Shoko Sato, Yukihide Aoyama, Hsin Jung Ho, Tomoko Goto, Michio Komai

研究成果: Article

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Geranylgeraniol (GGOH), a natural isoprenoid found in plants, has anti-inflammatory effects via inhibiting the activation of nuclear factor-kappa B (NFκB). However, its detailed mechanism has not yet been elucidated. Recent studies have revealed that isoprenoids can modulate signaling molecules in innate immune responses. We found that GGOH decreased the expression of lipopolysaccharide (LPS)-induced inflammatory genes in human macrophage-like THP-1 cells. Furthermore, we observed that the suppression of NFκB signaling proteins, in particular interleukin-1 receptor-associated kinase 1 (IRAK1) and tumor necrosis factor receptor-associated factor 6 (TRAF6), occurred in GGOH-treated cells prior to LPS stimulation, suggesting an immunomodulatory effect. These results indicate that GGOH may modulate and help prevent excessive NFκB activation that can lead to numerous diseases.

元の言語English
記事番号2320
ジャーナルInternational journal of molecular sciences
20
発行部数9
DOI
出版物ステータスPublished - 2019 5 1

ASJC Scopus subject areas

  • Catalysis
  • Molecular Biology
  • Spectroscopy
  • Computer Science Applications
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

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