Journal
MICROBIAL PATHOGENESIS
Volume 125, Issue -, Pages 431-437Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.micpath.2018.10.008
Keywords
Total flavones; Co-culture; Coprinus comatus; Morchella esculenta; Anti-inflammation; MAPK signaling pathway
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Funding
- National Natural Science Foundation of China [21402104, 81570188]
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The inflammatory cellular model of RAW264.7 cells induced by lipopolysaccharide (LPS) has always been used to investigate the effect of anti-inflammatory agents in vitro. In the present study, the anti-inflammatory activity of total flavones extracted from the fermentation broth of the co-culture of Coprinus comatus and Morchella esculenta (MCF-F), and its potential molecular mechanism in LPS-challenged RAW264.7 macrophage cells were investigated. The data revealed that MCF-F exhibited anti-inflammatory activity in LPS-stimulated RAW264.7 cells. At the same time, MCF-F was less cytotoxic under a concentration of 16 mu g/ml in RAW264.7 cells. The anti-inflammatory activity of MCF-F was detected using the Griess method and ELISA assay, and the results well-corroborated with the observed decrease in expression in pro-inflammatory mediators, including nitric oxide, tumor necrosis factor-alpha and inteleukin-1 beta (IL-1 beta). In addition, the expression of inducible NO synthase (iNOS) and cyclooxygenase2 (COX-2) were confirmed by RT-PCR and western blot, and it was found that both mRNA and protein levels were downregulated after MCF-F treatment. The data also revealed that MCF-F downregulated the phosphorylation of JNK, ERK and P38 MAPK. Collectively, these results lead to the conclusion that MCF-F exerts an anti-inflammatory effect against LPS-challenged RAW264.7 cells via the MAPK pathway.
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