Journal
CYTOKINE
Volume 111, Issue -, Pages 475-480Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cyto.2018.05.033
Keywords
Atherosclerosis; Oxidized low-density lipoprotein (ox-LDL); Inflammation; Reactive oxygen species (ROS); p38; NF-kappa B
Funding
- First Affiliated Hospital of Guangxi Medical University
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Oxidized low-density lipoprotein (ox-LDL) is a major risk factor for atherosclerosis and often causes injury to vascular endothelial cells. We found that pinocembrin, a natural antioxidant found in honey and certain herbs, protects human aortic endothelial cells (HAECs) from ox-LDL-induced injury. Pinocembrin suppresses the expression of pro-inflammatory vascular adhesion molecules (VCAM-1, ICAM-1 and E-selectin) and cytokines (TNF-alpha, IL-1 beta, and IL-8), as well as ROS production induced by ox-LDL. Pinocembrin potently inhibits the attachment of monocytes to HAEC cells. Mechanistically, pinocembrin suppresses activation of the MAPK kinase p38 and NF-kappa B pathways in the context of ox-LDL. Our data indicate that pinocembrin is a promising versatile natural compound that can protect endothelial cells from injury.
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