期刊
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
卷 62, 期 37, 页码 9171-9179出版社
AMER CHEMICAL SOC
DOI: 10.1021/jf501665v
关键词
6-dehydrogingerdione; lipopolysaccharides; inflammation; signal transducers and activators of transcription 1 and 3 (STAT-1 and-3)
资金
- Taiwan National Science Council [NSC96-2314-B-037-018-MY3]
- Kaohsiung Medical University Hospital [KMUH-100-0R12]
6-Dehydrogingerdione (6-DG), one important component of ginger, has been reported to possess some medical effects, such as antitumor and antiatherosclerosis. Herein, the anti-inflammatory effects of 6-DG against lipopolysaccharides (LPS) induced pro-inflammation mediators in RAW 264.7 cells were investigated. Results show that 6-DG significantly attenuated inducible nitric oxide synthase (iNOS, NOS2), cydooxygenase-2 (COX-2), interleukin-1 beta (IL-1 beta), interleukin 6 (IL-6), and tumor necrosis factor-alpha (TNF-alpha) in the LPS-mediated murine macrophages (RAW 264.7 cells). 6-DG inhibited LPS-induced phosphorylation of both p38 and nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor-alpha (I kappa B alpha), which further prevented p-p65 nuclear factor-kappa B (NF-kappa B-p65) translocation to the nucleus. Moreover, 6-DG increased the ratio of phosphorylated signal transducers and activators of transcription 1 (p-STAT1)/p-STAT3 and down-regulated the gene expression of IL-1 beta, IL-6, and IL-10.
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