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Pterostilbene Inhibits Vascular Smooth Muscle Cells Migration and Matrix Metalloproteinase‐2 through Modulation of MAPK Pathway
Author(s) -
Lin HsingChun,
Hsieh MingJu,
Peng ChiungHuei,
Yang ShunFa,
Huang ChienNing
Publication year - 2015
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/1750-3841.13002
Subject(s) - pterostilbene , mapk/erk pathway , phosphorylation , western blot , microbiology and biotechnology , matrix metalloproteinase , kinase , signal transduction , extracellular matrix , chemistry , biochemistry , biology , resveratrol , gene
Smooth muscle cells (SMCs) migration and matrix metalloproteinase‐2 (MMP‐2) activation are main roles in atherosclerosis. Pterostilbene (trans‐3, 5‐dimethoxy‐4‐hydroxystilbene) is known to have various pharmacologic effects such as anti‐inflammatory and anticarcinogenic properties. The present study aimed to investigate the anti‐atheroscleroic property of pterostilbene in the rat smooth muscle cell (SMC) A7r9 cell lines and the underlying mechanisms. In this study, pterostilbene treatment significantly inhibited migration/invasion capacities of in A7r9 cell. Pterostilbene was also found to significantly decreased MMP‐2 activity and expression by gelatin zymography and western blot assay in SMC. In the MAPK signaling pathway, western blot assay also indicated that pterostilbene up‐regulated the phosphorylation of extracellular‐signal‐regulated kinase (Erk)1/2. Moreover, inhibition of Erk1/2 by specific inhibitors significantly abolished the pterostilbene‐decreased expression of MMP‐2 and migration/invasion capacities. These findings suggest that pterostilbene inhibited SMC migration and that MMP‐2 activation could be mediated via Erk1/2 phosphorylation. It is further possible that pterostilbene could play a novel role in the treatment of atherosclerosis.