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KMID : 0923620150150060325
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Immune Network
2015 Volume.15 No. 6 p.325 ~ p.330
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Effect of Ixeris dentata Nakai Extract on Nitric Oxide Production and Prostaglandin E2 Generation in LPS-stimulated RAW264.7 Cells
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:Jung Yu-Yeon
:Hong Jin-Tae/:Han Sang-Bae/:Son Dong-Ju/:Park Young-Hyun
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Abstract
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Inflammation is the basis of severe acute and chronic diseases. This study investigated the anti-inflammatory property of a crude methanol extract (MeOH-ex) and the solvent fractions of Ixeris dentata Nakai (IDN) in LPS-stimulated murine macrophage-like cell line RAW264.7. Here, we showed that the ethyl acetate fraction (EtOAc-fr) had the most potent inhibitory activity on LPS-induced nitric oxide (NO) production among the tested samples, i.e., IDN MeOH-ex and the three different solvent fractions (chloroform, n-hexane, and EtOAc). We further found that the EtOAc-fr significantly inhibited LPS-induced prostaglandin PGE2 (PGE2) generation in RAW264.7 cells. Furthermore, the treatment with EtOAc-fr effectively suppressed the expression of inducible NO synthase (iNOS) and cyclooxygenase 2 (COX-2). These results suggest that the EtOAc-fr of IDN MeOH-ex exhibits an anti-inflammatory activity in vitro by inhibiting LPS-induced NO production and PGE2 generation via suppression of iNOS and COX-2 expression.
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KEYWORD
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Ixeris dentate Nakai, Inflammation, Nitric oxide, Prostaglandin E2, iNOS, COX-2
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