ArticleAvicenna journal of phytomedicine
Nordihydroguaiaretic acid attenuates TNFα-dependent intercellular adhesion molecule-1 expression in cultured human umbilical vein endothelial cells via targeting TNFα-PI3K-NF-κB-ICAM1 pathway.
Article in Avicenna journal of phytomedicine. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: During inflammation and oxidative stress, vascular endothelial cell surfaces express high levels of adhesion molecules such as intercellular adhesion molecule 1 (ICAM1) which bind the circulatory leukocytes (e.g. macrophages), through counter receptors LFA/Mac1. The bound leukocytes on sub-endothelial translocation accumulate oxidized lipids and proteins, developing atherosclerotic plaques by foam cell and fatty streak formations. Herewith, nordihydroguaiaretic acid (NDGA) prevails as a polyphenol in the Materials and Methods: Cultured HUVECs were treated with pro-inflammatory and pro-oxidative cytokine TNFα, to induce ICAM1 mRNA level and protein expression on HUVECs cell surface as documented by northern and western blot, respectively. The effect of varying NDGA concentrations was examined on TNFα-stimulated ICAM1 expression and monocyte attachment assay. Results: Pre-TNFα-NDGA treatment of HUVECs moderated TNFα-dependent ICAM1 expression and monocyte attachment on vascular endothelium by inhibiting the PI3K-NF-κB-ICAM1 signaling pathway. Conclusion: In this study, the NDGA anti-inflammatory and anti-adhesion essence is elucidated
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