食品科学

• 生物工程 • 上一篇    下一篇

蓝莓多酚对巨噬细胞中iNOS、COX-2基因表达的影响

韩彩静,程安玮,陈相艳,王文亮,谢春阳   

  1. 1.山东省农业科学院农产品研究所,山东 济南 250100;2.吉林农业大学食品科学与工程学院,吉林 长春 130118
  • 出版日期:2014-10-15 发布日期:2014-10-17

Effects of Blueberry Polyphenols on the Expression of iNOS and COX-2 Genes in Macrophages

HAN Cai-jing, CHENG An-wei, CHEN Xiang-yan, WANG Wen-liang, XIE Chun-yang   

  1. 1. Institute of Agro-food Science and Technology, Shandong Academy of Agricultural Sciences, Jinan 250100, China;
    2. College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China
  • Online:2014-10-15 Published:2014-10-17

摘要:

RAW264.7巨噬细胞被脂多糖预刺激后,添加从蓝莓中分离制备的不同质量浓度的可萃取多酚(extractablepolyphenols,EPP)和不可萃取多酚(non-extractable polyphenols,NEPP),培养不同的时间,研究不同质量浓度及培养时间对诱导型一氧化氮合酶(inducible nitric oxide synthase,iNOS)、环氧合酶(cyclooxygenase-2,COX-2)基因相对表达量的影响。结果表明:从蓝莓中分离的EPP和NEPP均能抑制iNOS、COX-2基因表达,在12 h培养时间内,2 种多酚的抑制效果较好,且EPP的抑制效果明显好于NEPP。这证明蓝莓中的NEPP同EPP一样,可通过抑制iNOS、COX-2 mRNA的表达表现出明显的抗炎活性。

关键词: 蓝莓多酚, 巨噬细胞, 一氧化氮合酶, 环氧合酶, 基因表达

Abstract:

The effects of different concentrations of extractable polyphenols (EPP) and non-extractable polyphenols
(NEPP) from blueberries on the mRNA levels of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) in
lipopolysaccharides (LPS)-induced RAW264.7 cells at different culture times were studied in this paper. The results showed
that both EPP and NEPP from blueberries inhibited the mRNA expression of iNOS and COX-2 genes. During a 12-h
incubation period, the inhibitory effects of both EPP and NEPP, especially that of EPP, were significant. It is suggested that
EPP and NEPP have significant anti-inflammatory activity by inhibiting the mRNA expression of iNOS and COX-2 genes in
macrophages.

Key words: blueberry polyphenols, macrophages, iNOS, COX-2, gene expression

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