Shin Soon Young, Kim Heon-Woong, Jang Hwan-Hee, Hwang Yu-Jin, Choe Jeong-Sook, Lim Yoongho, Kim Jung-Bong, Lee Young Han
1 Department of Biological Sciences, Sanghuh College of Life Sciences, Konkuk University , Seoul, Korea.
2 Cancer and Metabolism Institute, Konkuk University , Seoul, Korea.
J Med Food. 2017 Sep;20(9):855-863. doi: 10.1089/jmf.2017.3966. Epub 2017 Jul 7.
The innate immune response is an important host primary defense system against pathogens. γ-Oryzanol is one of the nutritionally important phytoceutical components in rice bran oil. The goal of this study was to investigate the effect of γ-oryzanol-rich extract from black rice bran (γORE) on the activation of the innate immune system. In this study, we show that γORE increased the expression of CD14 and Toll-like receptor 4 and enhanced the phagocytic activity of RAW264.7 macrophages. Furthermore, γORE and its active ingredient γ-oryzanol promoted the secretion of innate cytokines, interleukin-8, and CCL2, which facilitate phagocytosis by RAW264.7 cells. These findings suggest that γ-oryzanol in the γORE enhances innate immune responses.
天然免疫反应是宿主抵御病原体的重要初级防御系统。γ-谷维素是米糠油中具有重要营养意义的植物药成分之一。本研究的目的是探讨黑米糠富含γ-谷维素的提取物(γORE)对天然免疫系统激活的影响。在本研究中,我们发现γORE增加了CD14和Toll样受体4的表达,并增强了RAW264.7巨噬细胞的吞噬活性。此外,γORE及其活性成分γ-谷维素促进了天然细胞因子、白细胞介素-8和CCL2的分泌,这些因子有助于RAW264.7细胞的吞噬作用。这些发现表明,γORE中的γ-谷维素增强了天然免疫反应。