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Compounds DRG and DAG, Two Phenol Glycosides, Inhibit TNF-α-stimulated Inflammatory Response through Blocking NF-kB/AKT/JNK Signaling Pathways in MH7A Cells.
- Source :
-
Inflammation . Oct2021, Vol. 44 Issue 5, p1762-1770. 9p. - Publication Year :
- 2021
-
Abstract
- Fourteen constituents were recently isolated from the roots of Dendropanax dentiger with cyclooxygenase-2 (COX-2) inhibitory effects. However, the effect of 14 constituents on rheumatoid arthritis (RA) and their action mechanism remain unclear. The study aimed to explore the anti-RA effect and potential mechanism of these constituents in tumor necrosis factor α (TNF-α)–stimulated human RA fibroblast-like synoviocytes (MH7A cells). The cell viability, nitric oxide (NO) production, inflammatory cytokine levels, and protein expressions were measured by cell counting kit-8 (CCK-8), Griess reagent, ELISA, and Western blot assays, respectively. Results showed that 14 constituents (40 μM) have no cytotoxicity for MH7A cells. Among them, two phenols including 3,4-dimethoxyphenyl-1-O-α-l-rhamnopyranosyl-(1→6)-O-β-d-glucopyranoside (DRG) and 3,4-dimethoxyphenol-β-d-apiofuranosyl-(1→6)-β-d-glucopyranoside (DAG) were shown to significantly inhibit the NO production with IC50 values of 5.25±0.34 and 5.35±0.31 μM, respectively. They also remarkably decreased the release of interleukin (IL)-2, 6, 8, and interferon (IFN)-γ, as well as prominently reduced the phosphorylation protein levels of p65, IkBα, AKT, and JNK at a concentration of 10 μM. Taken together, DRG and DAG could inhibit TNF-α-induced inflammatory response through blocking NF-kB/AKT/JNK signaling pathways in MH7A cells, thus could be promising against RA and other inflammation-related agents. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03603997
- Volume :
- 44
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Inflammation
- Publication Type :
- Academic Journal
- Accession number :
- 152603978
- Full Text :
- https://doi.org/10.1007/s10753-021-01452-9