DOI QR코드

DOI QR Code

Anti-inflammatory Effects of Water Extract of Eucommia ulmoides OLIVER on the LPS-induced RAW 264.7 Cells

대식세포 Raw 264.7에서 두충의 항염증효과

  • Received : 2012.04.07
  • Accepted : 2012.10.05
  • Published : 2012.10.30

Abstract

Eucommia ulmoides OLIVER (EU) is a traditional Korean herbal used for the treatment of rheumatoid arthritis (RA). In the present study, the molecular pharmacology basis of its anti-inflammatory effect is revealed in this work, EU was studied in lipopolysaccharide (LPS)-activated macrophage cells (RAW 264.7) as an established inflammation model. After activation, nitric oxide (NO) production and iNOS mRNA were measured by using a colorimetric assay (Griess reagent), and reverse transcription polymerase chain reaction (RT-PCR), respectively. The change in the content of $PGE_2$, $TNF{\alpha}$, and IL-6 was concurrently monitored by ELISA. In results, we found that in the concentration range without showing cytotoxicity, EU produced a remarkable anti-inflammatory effect and showed a dose-dependent inhibition of LPSinduced NO production. Compared with indomethacin, EU has more potency and a specific action of NO inhibition, $PGE_2$, IL-6, and TNF-${\alpha}$ inhibition. These results suggest that EU may be a suitable herbal medicine to yield the greatest anti-inflammatory activity for food additives and medicine.

Keywords

Eucommia ulmoides OLIVER;NO;iNOS;$PGE_2$;IL-6;TNF-${\alpha}$

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Acknowledgement

Supported by : Rural Development Administration