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Lutonarin from Barley Seedlings Inhibits the Lipopolysacchride-Stimulated Inflammatory Response of RAW 264.7 Macrophages by Suppressing Nuclear Factor-κB Signaling
| Content Provider | MDPI |
|---|---|
| Author | Yang, Ji Woo, So-Yeun Lee, Mi Kim, Hyun Lee, Jin Kim, Sa-Hyun Seo, Woo |
| Copyright Year | 2021 |
| Description | Extracts from barley seedlings (BS) have known antioxidant and anti-inflammatory activities. The flavonoid lutonarin (LN) is a component of BS extract and has several known bioactivities. Here, we evaluated LN anti-inflammatory efficacy against lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages. Lutonarin was isolated from BS by methanol extraction and characterized by ultra-performance liquid chromatography and quadrupole time-of-flight tandem mass spectrometry (UPLC-Q-TOF-MS/MS). Lutonarin did not reduce the viability or enhance the apoptosis rate of RAW 264.7 macrophages at concentrations up to 150 µM. Concentrations within 20–60 µM dose-dependently suppressed the LPS-induced expression, phosphorylation, and nuclear translocation of the inflammatory transcription factor nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB). Furthermore, LN suppressed the LPS-induced upregulation of proinflammatory cytokines interleukin (IL)-6 and tumor necrosis factor (TNF)-α and of the inflammatory enzyme cyclooxygenase-2 (COX-2) and inducible nitric oxide synthase (iNOS). Lutonarin may be a safe and effective therapeutic agent for alleviation of pathological inflammation. |
| Starting Page | 1571 |
| e-ISSN | 14203049 |
| DOI | 10.3390/molecules26061571 |
| Journal | Molecules |
| Issue Number | 6 |
| Volume Number | 26 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-03-12 |
| Access Restriction | Open |
| Subject Keyword | Molecules Integrative and Complementary Medicine Lutonarin Barley Seedlings Nf-κb Anti-inflammatory |
| Content Type | Text |
| Resource Type | Article |