Oak Wood Vinegar Suppresses the Expression of Cyclooxygenase-2 Induced by TLR4 Agonist

  • Yun, Sae-Mi (Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University) ;
  • Park, Se-Jeong (Department of Medical Biotechnology, College of Medical Sciences, Soonchunhyang University) ;
  • Lee, A-Neum (Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University) ;
  • Ahn, Sang-Il (Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University) ;
  • Youn, Hyung-Sun (Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University)
  • 발행 : 2009.09.30

초록

Toll-like receptors (TLRs) recognize molecular structures derived from microbes including bacteria, viruses, yeast, and fungi. TLRs have emerged as a major signaling component of the mammalian host defense. TLR4 is a member of the Toll family that senses lipopolysaccharide (LPS), a cell wall component of gram negative bacteria. LPS recognition by TLR4 requires an additional accessory molecule, MD-2. LPS induces the activation of NF-${\kappa}B$ and IRF3 through MyD88 or TRIF-dependent pathways. The activation of NF-${\kappa}B$ leads to the induction of inflammatory gene products including cytokines and cyclooxygenase-2 (COX-2). This study was carried out to investigate the anti-inflammatory effects of oak wood vinegar. Oak wood vinegar inhibits the NF-${\kappa}B$ activation and COX-2 expression induced by LPS. These results provide new ideas to understand the mechanism of oak wood vinegar for its anti-bacterial and anti-inflammatory activities.

키워드

참고문헌

  1. Jung IS, Kim YJ, Gal SW, Choi YJ. Antimicrobial and antitoxidant activities and inhibition of nitric oxide synthesis of oak wood vinegar. J Life Sci. 2007. 17: 105-109. https://doi.org/10.1016/0024-3205(75)90245-3
  2. Kawai T, Akira S. Signaling to NF-kappaB by Toll-like receptors. Trends Mol Med. 2007. 13: 460-469. https://doi.org/10.1016/j.molmed.2007.09.002
  3. Lee GW, Kim AR, Cho JS. HPLC analysis of organic acids, phenol, and benzopyrene in wood vinegar. Yakhak Hoeji 2008. 52: 12-19.
  4. Medzhitov R. Toll-like receptors and innate immunity. Nat Rev Immunol. 2001. 1: 135-145. https://doi.org/10.1038/35100529
  5. O'Neill LA. TLRs: Professor Mechnikov, sit on your hat. Trends Immunol. 2004. 25: 687-693. https://doi.org/10.1016/j.it.2004.10.005
  6. Raetz CR, Whitfield C. Lipopolysaccharide endotoxins. Annu Rev Biochem. 2002. 71: 635-700. https://doi.org/10.1146/annurev.biochem.71.110601.135414
  7. Takeda K, Akira S. Toll-like receptors in innate immunity. Int Immunol. 2005. 17: 1-14.
  8. Vogel SN, Fitzgerald KA, Fenton MJ. TLRs: differential adapter utilization by toll-like receptors mediates TLR-specific patterns of gene expression. Mol Interv. 2003. 3: 466-477. https://doi.org/10.1124/mi.3.8.466
  9. Youn HS, Lee JY, Fitzgerald KA, Young HA, Akira S, Hwang DH. Specific inhibition of MyD88-independent signaling pathways of TLR3 and TLR4 by resveratrol: molecular targets are TBK1 and RIP1 in TRIF complex. J Immunol. 2005. 175: 3339-3346. https://doi.org/10.4049/jimmunol.175.5.3339
  10. Youn HS, Saitoh SI, Miyake K, Hwang DH. Inhibition of homodimerization of Toll-like receptor 4 by curcumin. Biochem Pharmacol. 2006. 72: 62-69. https://doi.org/10.1016/j.bcp.2006.03.022