矢车菊素对 TNF-α 诱导的内皮细胞炎症反应的抑制作用。

Inhibitory effect of Malvidin on TNF-α-induced inflammatory response in endothelial cells.

机构信息

Department of Functional Food and Bio-active Compounds, Institute of Farm Product Processing, Jiangsu Academy of Agricultural Science, Nanjing 210014, PR China.

Department of Functional Food and Bio-active Compounds, Institute of Farm Product Processing, Jiangsu Academy of Agricultural Science, Nanjing 210014, PR China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, PR China.

出版信息

Eur J Pharmacol. 2014 Jan 15;723:67-72. doi: 10.1016/j.ejphar.2013.11.041. Epub 2013 Dec 11.

Abstract

Vascular inflammatory responses are key mediators of endothelial dysfunction that leads to various pathologies in many diseases including atherosclerosis and cancer. The purpose of the study was to investigate the effects and molecular mechanisms of Malvidin, a natural pigment with strong antioxidant activity, on regulating inflammatory response in endothelial cells. Our results showed that tumor necrosis factor-alpha (TNF-α) significantly increased the protein or mRNA levels of monocyte chemotactic protein-1 (MCP-1), intercellular adhesion molecule-1 (ICAM-1), and vascular cell adhesion molecule-1 (VCAM-1), whereas pretreatment with Malvidin inhibited TNF-α-induced increases of MCP-1, ICAM-1, and VCAM-1 production in a concentration-dependent manner. In addition, Malvidin could inhibit degradation of IκBα and the nuclear translocation of p65, which suggesting the anti-inflammation mechanism of Malvidin by the nuclear factor kappa B (NF-κB) pathway. These results indicate the potential role of Malvidin in preventing chronic inflammation in many diseases.

摘要

血管炎症反应是内皮功能障碍的关键介质,导致许多疾病(包括动脉粥样硬化和癌症)中的各种病理变化。本研究旨在探讨具有强抗氧化活性的天然色素飞燕草素对调节内皮细胞炎症反应的作用及其分子机制。我们的结果表明,肿瘤坏死因子-α(TNF-α)显著增加单核细胞趋化蛋白-1(MCP-1)、细胞间黏附分子-1(ICAM-1)和血管细胞黏附分子-1(VCAM-1)的蛋白或 mRNA 水平,而预先用飞燕草素处理则以浓度依赖性方式抑制 TNF-α诱导的 MCP-1、ICAM-1 和 VCAM-1 产生增加。此外,飞燕草素可以抑制 IκBα 的降解和 p65 的核转位,提示飞燕草素通过核因子 kappa B(NF-κB)途径发挥抗炎作用。这些结果表明飞燕草素在预防许多疾病的慢性炎症方面具有潜在作用。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索