Benzylideneacetophenone derivative alleviates arthritic symptoms via modulation of the MAPK signaling pathway

Bongjun Sur, Mijin Kim, Thea Villa, Seikwan Oh

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4 Scopus citations


The benzylideneacetophenone derivative 3-(4-hydroxy-3-methoxy-phenyl)-1-{3-[1]-phenyl} -propenone (JC3 dimer) was synthesized through the dimerization of JC3. To investigate the inhibitory effects of JC3 dimer, the carrageenan/kaolin (C/K)-induced knee arthritis rat model was used in vivo and rheumatoid arthritis (RA) patient-derived fibroblast-like synoviocytes (FLS) were used in vitro. In the C/K rat model, JC3 dimer was given after arthritis induction for 6 days at the concentrations of 1, 5, or 10 mg/kg/day. Manifestation of arthritis was evaluated using knee thickness, weight distribution ratio (WDR), and squeaking test. The levels of prostaglandin E2 (PGE2), interleukin (IL)-6, and tumor necrosis factor (TNF)-α in the serum of JC3 dimer-treated arthritic rats were also analyzed. Histological examination of the knee joints was also done. For the FLS, the cells were stimulated using IL-1β and concentrations of 1, 5, and 10 μg/mL JC3 dimer were used. The levels of IL-8, IL-6, and PGE2 were measured in stimulated FLS treated with JC3 dimer. At days 5 to 6 after arthritis induction, JC3 dimer treatment significantly decreased arthritic symptoms and reduced the inflammation in the knee joints in the histology of knee tissues in C/K-arthritic rats. In stimulated FLS, JC3 dimer suppressed the increase of IL-8, IL-6, and PGE2. These findings suggest that JC3 dimer has suppressive effects on arthritis, and that JC3 dimer can be a potential agent for arthritis therapy.

Original languageEnglish
Article number3319
Issue number15
StatePublished - Aug 2020

Bibliographical note

Funding Information:
Funding: This research was funded by National Research Foundation of Korea (NRF), grant number MRC 2010-0027945.).

Publisher Copyright:
© 2020 by the authors.


  • Anti-inflammatory
  • Arthritis
  • Benzylideneacetophenone
  • Fibroblast-like synoviocytes
  • TNF-α


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