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http://dx.doi.org/10.5352/JLS.2013.23.11.1404

Effects of (-)-Epigallocatechin-3-gallate on the Release of Pancreatic Enzymes and Expression of Regenerating Genes in Ethanol-injured Murine Pancreatic Primary Acinar Cells  

Kim, Sung Ok (Team for Scientification of Korean Medical Intervention (BK21 Plus) & Department of Herbal Pharmacology, College of Oriental Medicine, Daegu Haany University)
Choi, Yung Hyun (Department of Biochemistry, Dongeui University College of Oriental Medicine, Anti-Aging Research Center & Blue-Bio Industry RIC, Dongeui University)
Publication Information
Journal of Life Science / v.23, no.11, 2013 , pp. 1404-1408 More about this Journal
Abstract
(-)-Epigallocatechin-3-gallate (EGCG), a green tea polyphenol, has been shown to have strong antibacterial, antiviral, antioxidant, anti-inflammatory, and chemopreventive effects. However it is unknown whether EGCG can recover alcohol-associated pancreatitis. The aim of this study was to investigate the effects of EGCG on pancreatic enzyme activities and the expressions of pancreatic regenerating related markers, such as adenosine monophosphate-activated protein kinase (AMPK), raf-1 kinase inhibitor protein (RKIP), and Regenerating gene 1 (Reg1), in mice pancreatic primary acinar cells. Our results revealed that activities of ${\alpha}$-amylase and chymotrypsin were significantly increased in the cells treated with ethanol compared to the untreated control cells; however, the increased activities of both enzymes were markedly reduced by pretreatment with EGCG. Phosphorylation of AMPK and total expression of RKIP were decreased in the ethanol-treated primary acinar cells; however, these were both significantly increased in the EGCG-pretreated cells. In addition, when EGCG was treated, expression of Reg1 was markedly increased compared with that of the control or the ethanol-treated primary acinar cells, demonstrating that EGCG can modulate pancreatic regenerating related genes. Therefore, our findings suggest that EGCG may have therapeutic utility in the prevention or treatment of alcohol-associated pancreatitis.
Keywords
EGCG; acinar cell; pancreatitis; pancreatic enzymes; regenerating genes;
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