College of Oriental Medicine, Kyungwon University, Seongnam 461-701, Republic of Korea.
Toxicol Lett. 2012 Feb 25;209(1):51-7. doi: 10.1016/j.toxlet.2011.11.024. Epub 2011 Dec 1.
In this study, we have investigated immunostimulatory effects of gold nanorod (Au) and silica-coated gold nanorod (SiAu) concerned with inflammatory mediators such as calcium (Ca), hydrogen peroxide, nitric oxide (NO), various cytokines, prostaglandin E2 (PGE2), transcription factors, and immune response gene in RAW 264.7 mouse macrophages. Both Au and SiAu significantly increased the release of Ca, hydrogen peroxide, NO, IL-1α, IL-1β, IL-6, IL-10, IP-10, MCP-1, MCP-3, TNF-α, RANTES, G-CSF, GM-CSF, LIF, MIP-2, VEGF, and PGE2 with enhancing expression of STAT1, STAT3, c-Fos, and COX-2 mRNA in RAW 264.7 cells. The results suggest that Au and SiAu have immunostimulatory properties to strengthen immune reactions via calcium-transcription factors pathway in macrophage.
在这项研究中,我们研究了金纳米棒(Au)和硅涂层金纳米棒(SiAu)对炎症介质的免疫刺激作用,这些炎症介质包括钙(Ca)、过氧化氢、一氧化氮(NO)、各种细胞因子、前列腺素 E2(PGE2)、转录因子和 RAW 264.7 小鼠巨噬细胞中的免疫反应基因。Au 和 SiAu 均显著增加 Ca、过氧化氢、NO、IL-1α、IL-1β、IL-6、IL-10、IP-10、MCP-1、MCP-3、TNF-α、RANTES、G-CSF、GM-CSF、LIF、MIP-2、VEGF 和 PGE2 的释放,并增强 RAW 264.7 细胞中 STAT1、STAT3、c-Fos 和 COX-2 mRNA 的表达。结果表明,Au 和 SiAu 通过巨噬细胞中的钙转录因子途径具有免疫刺激特性,可增强免疫反应。