Biological and Pharmaceutical Bulletin
Online ISSN : 1347-5215
Print ISSN : 0918-6158
ISSN-L : 0918-6158
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Caffeic Acid Protects Hydrogen Peroxide Induced Cell Damage in WI-38 Human Lung Fibroblast Cells
Kyoung Ah KangKyoung Hwa LeeRui ZhangMeijing PiaoSungwook ChaeKil Nam KimYou Jin JeonDoek Bae ParkHo Jin YouJin Sook KimJin Won Hyun
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2006 Volume 29 Issue 9 Pages 1820-1824

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Abstract

Cytoprotective effect of caffeic acid (3,4-dihydroxy cinnamic acid) on human lung fibroblast (WI-38) cells against hydrogen peroxide induced damage was investigated. Caffeic acid was found to scavenge intracellular reactive oxygen species, and 1,1-diphenyl-2-picrylhydrazyl radical, and thus prevented lipid peroxidation. The caffeic acid protected cell damage of WI-38 cells exposed to hydrogen peroxide (H2O2), via the activation of extracellular signal regulated kinase protein. Caffeic acid increased the activity of catalase and its protein expression. Hence, from the present study, it is suggestive that caffeic acid protects WI-38 cells against H2O2 damage by enhancing the cellular antioxidant activity.

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© 2006 The Pharmaceutical Society of Japan
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