Anti-Inflammatory Effect of Ascochlorin in LPS-Stimulated RAW 264.7 Macrophage Cells Is Accompanied With the Down-Regulation of iNOS, COX-2 and Proinflammatory Cytokines Through NF-κB, ERK1/2, and p38 Signaling Pathway.
J Cell Biochem
; 117(4): 978-87, 2016 Apr.
Article
em En
| MEDLINE
| ID: mdl-26399466
ABSTRACT
A natural compound C23 H32 O4 Cl, ascochlorin (ASC) isolated from an incomplete fungus, Ascochyta viciae has been known to have several biological activities as an antibiotic, antifungal, anti-cancer, anti-hypolipidemic, and anti-hypertension agent. In this study, anti-inflammatory activity has been investigated in lipopolysaccharide (LPS)-induced murine macrophage RAW 264.7 cells, since ASC has not been observed on the inflammatory events. The present study has clearly shown that ASC (1-50 µM) significantly suppressed the production of nitric oxide (NO) and prostaglandin E2 (PGE2 ) and decreased the gene expression of inducible NO synthase (iNOS) and cyclooxygenase-2 (COX-2) in a dose-dependent manner. Moreover, ASC inhibited the mRNA expression and the protein secretion of interleukin (IL)-1ß and IL-6 but not tumor necrosis factor (TNF)-α in LPS-stimulated RAW 264.7 macrophage cells. In addition, ASC suppressed nuclear translocation and DNA binding affinity of nuclear factor-κB (NF-κB). Furthermore, ASC down-regulated phospho-extracellular signal-regulated kinase 1/2 (p-ERK1/2) and p-p38. These results demonstrate that ASC exhibits anti-inflammatory effects in RAW 264.7 macrophage cells.
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Base de dados:
MEDLINE
Assunto principal:
Fenóis
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Transdução de Sinais
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Anti-Inflamatórios não Esteroides
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Lipopolissacarídeos
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Alcenos
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Ciclo-Oxigenase 2
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Óxido Nítrico Sintase Tipo II
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Macrófagos
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article