1,2,3,6-tetra-O-galloyl-beta-D-Allopyranose Gallotannin Isolated, from Euphorbia jolkini, Attenuates LPS-Induced Nitric Oxide Production in Macrophages

Title
1,2,3,6-tetra-O-galloyl-beta-D-Allopyranose Gallotannin Isolated, from Euphorbia jolkini, Attenuates LPS-Induced Nitric Oxide Production in Macrophages
Author(s)
이승호이희상[이희상]박승빈[박승빈]김미선[김미선]김상현[김상현]
Keywords
NF-KAPPA-B; HUMAN MAST-CELLS; INFLAMMATORY CYTOKINES; HYDROLYZABLE TANNINS; MURINE MACROPHAGE; EXPRESSION; INHIBITION; SYNTHASE; CANCER; ALPHA
Issue Date
201008
Publisher
WILEY-BLACKWELL
Citation
PHYTOTHERAPY RESEARCH, v.24, no.9, pp.1329 - 1333
Abstract
Nitric oxide (NO) is a pleiotropic regulator, critical to numerous biological processes, including vasodilatation and macrophage-mediated immunity. Macrophages express inducible NO synthase (iNOS) and produce NO after lipopolysaccharide (LPS) stimulation. Gallotannins are water-soluble polyphenols with wide-ranging biological activities. Various chemical structures of gallotannins occurring in medicinal and food plants that are used worldwide showed several remarkable biological and pharmacological activities. In the present study, we examined the inhibitory effects of gallotannin 1,2,3,6-tetra-O-galloyl-beta-D-allopyranose (GT24) isolated from Euphorbia jolkini on the LPS-induced NO production and underlying mechanisms of action. GT24 dose-dependently decreased LPS-induced NO production and iNOS expression in J774A.1 macrophages. In addition, GT24 inhibited LPS-induced activation of nuclear factor (NF)-kappa B as indicated by inhibition of degradation of I-kappa B alpha, nuclear translocation of NF-kappa B, and NF-kappa B dependent gene reporter assay. Our results suggest that GT24 possesses an inhibitory effect on the LPS-induced inflammatory reaction. Copyright (C) 2010 John Wiley & Sons, Ltd.
URI
http://hdl.handle.net/YU.REPOSITORY/23827http://dx.doi.org/10.1002/ptr.3110
ISSN
0951-418X
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약학대학 > 약학부 > Articles
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