title: MK615 attenuates Porphyromonas gingivalis lipopolysaccharide-induced pro-inflammatory cytokine release via MAPK inactivation in murine macrophage-like RAW264.7 cells.
abstract: The Japanese apricot, known as Ume in Japanese, has been a traditional Japanese medicine for centuries, and is a familiar and commonly consumed food. The health benefits of Ume are now being widely recognized and have been strengthened by recent studies showing that MK615, an extract of compounds from Ume, has strong anticancer and anti-inflammatory effects. However, the potential role of MK615 in the periodontal field remains unknown. Here, we found that MK615 significantly reduced the production of pro-inflammatory mediators (tumor necrosis factor-alpha and interleukin-6) induced by Porphyromonas gingivalis lipopolysaccharide (LPS), a major etiological agent in localized chronic periodontitis, in murine macrophage-like RAW264.7 cells. MK615 markedly inhibited the phosphorylation of ERK1/2, p38MAPK, and JNK, which is associated with pro-inflammatory mediator release pathways. Moreover, MK615 completely blocked LPS-triggered NF-kappaB activation. The present results suggest that MK615 has potential as a therapeutic agent for treating inflammatory diseases such as periodontitis.
authors.affiliation: Department of Restorative Dentistry and Endodontology, Kagoshima University Graduate School of Medical and Dental Sciences, Kagoshima 890-8544, Japan.
authors.forename: Yoko
authors.initials: Y
authors.lastname: Morimoto
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Kikuchi
authors.forename: Takashi
authors.initials: T
authors.lastname: Ito
authors.forename: Masayuki
authors.initials: M
authors.lastname: Tokuda
authors.forename: Takashi
authors.initials: T
authors.lastname: Matsuyama
authors.forename: Satoshi
authors.initials: S
authors.lastname: Noma
authors.forename: Teruto
authors.initials: T
authors.lastname: Hashiguchi
authors.forename: Mitsuo
authors.initials: M
authors.lastname: Torii
authors.forename: Ikuro
authors.initials: I
authors.lastname: Maruyama
authors.forename: Ko-Ichi
authors.initials: K
authors.lastname: Kawahara
mesh_terms: D021581:Active Transport, Cell Nucleus; D000818:Animals; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000494:pharmacology* / Q000627:therapeutic use; D002460:Cell Line; D015850:Interleukin-6 / Q000096:biosynthesis; D008070:Lipopolysaccharides / Q000276:immunology; D008264:Macrophages / Q000187:drug effects* / Q000201:enzymology; D051379:Mice; D020929:Mitogen-Activated Protein Kinase Kinases / Q000037:antagonists & inhibitors*; D010518:Periodontitis / Q000188:drug therapy / Q000382:microbiology; D010936:Plant Extracts / Q000494:pharmacology* / Q000627:therapeutic use; D016966:Porphyromonas gingivalis; D051996:Transcription Factor RelA / Q000378:metabolism; D014409:Tumor Necrosis Factor-alpha / Q000037:antagonists & inhibitors* / Q000096:biosynthesis; D000093242:Interleukin-6 Inhibitors
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal; D015850:Interleukin-6; D008070:Lipopolysaccharides; D020929:Mitogen-Activated Protein Kinase Kinases; D010936:Plant Extracts; D051996:Transcription Factor RelA; D014409:Tumor Necrosis Factor-alpha; D000093242:Interleukin-6 Inhibitors; C517469:MK615 extract; C498144:Rela protein, mouse