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Ginsenoside Rg3 inhibits lipopolysaccharide-induced adhesion molecule expression in human umbilical vein endothelial cell and C57BL/6 mice.


PMID 25985577

Abstract

Intercellular adhesion molecule 1 (ICAM-1), vascular cell adhesion molecule 1 (VCAM-1), P- and E-selectin play a key role for initiation of vascular inflammation. Ginsenoside, a class of steroid glycosides, is abundant in Panax ginseng root, which has been used for health promotion in Korea. In this study, we investigated the mechanism by which ginsenoside Rg3 may inhibit ICAM-1 and VCAM-1 expressions stimulated with lipopolysaccharide (LPS) in human umbilical vein endothelial cell (HUVEC) and C57BL/6 mice. LPS increased ICAM-1 and VCAM-1 expression. Ginsenoside Rg3 prevented LPS-mediated increase of ICAM-1 and VCAM-1 expression. LPS induced IkappaBα (IκBα) degradation within 1 hr. Ginsenoside Rg3 prevented the IκBα degradation stimulated with LPS. Moreover, ginsenoside Rg3 reduced LPS-mediated THP-1 monocyte adhesion to HUVEC, in a concentration-dependent manner. In C57BL/6 mice, injection of LPS increased aortic ICAM-1 and VCAM-1 expression, which was prevented by ginsenoside Rg3. These data provide a novel mechanism where the ginsenoside Rg3 may provide direct vascular benefits with inhibition of leukocyte adhesion into vascular wall thereby providing prevention against vascular inflammatory disease.

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