کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2167171 | 1549406 | 2013 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Piperine inhibits LPS induced expression of inflammatory mediators in RAW 264.7 cells
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
بیولوژی سلول
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The aim of the present study was to investigate the effects of piperine on the inflammatory responses to lipopolysaccharide (LPS) in RAW264.7 cells and the signal transduction pathways involved. RAW264.7 cells were pretreated with piperine at 10, 50 or 100 μg/ml and subsequently stimulated with LPS (1 μg/ml) for 24 h. We found that piperine inhibited the production of prostaglandin E2 (PGE2) and nitric oxide (NO) induced by LPS. Piperine significantly decreased LPS-stimulated gene expression and production of tumor necrosis factor-alpha (TNF), inducible NO synthase (iNOS) and COX-2 in RAW264.7 cells. Piperine inhibited the LPS-mediated activation of nuclear factor-kappa B (NF-kappaB) by suppressing the degradation of inhibitor-κB proteins (IκB) and the translocations of p65 subunit of NF-kB from the cytosol to the nucleus. Our results demonstrate the anti-inflammatory activity of piperine in RAW264.7 cells; suggesting that piperine may be a potential agent in the treatment of inflammation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cellular Immunology - Volume 285, Issues 1â2, SeptemberâOctober 2013, Pages 49-54
Journal: Cellular Immunology - Volume 285, Issues 1â2, SeptemberâOctober 2013, Pages 49-54
نویسندگان
Xiaozhou Ying, Kehe Yu, Xiaowei Chen, Hua Chen, Jianjun Hong, Shaowen Cheng, Lei Peng,