当前位置： SCI文献检索 > BRITISH JOURNAL OF PHARMACOLOGY期刊下所有文献 > Delphinidin and cyanidin inhibit PDGF(AB)-induced VEGF release in vascular smooth muscle cells by preventing activation of p38 MAPK and JNK.

Delphinidin and cyanidin inhibit PDGF(AB)-induced VEGF release in vascular smooth muscle cells by preventing activation of p38 MAPK and JNK.

Abstract：

BACKGROUND AND PURPOSE:Red wine polyphenols (RWPs) inhibit the expression of vascular endothelial growth factor (VEGF), a major pro-angiogenic and pro-atherosclerotic factor, in vascular smooth muscle cells (VSMCs). The aim of this study was to identify which red wine polyphenols were inhibitory and to determine the mechanism underlying the inhibitory effects. EXPERIMENTAL APPROACH:Release of VEGF stimulated by platelet derived growth factor(AB) (PDGF(AB)), from human aortic VSMCs was measured by immunoassay and phosphorylation of kinases by Western blot analysis. The direct antioxidant properties of polyphenols were determined by electron paramagnetic resonance and the cellular formation of reactive oxygen species (ROS) by dichlorofluorescein. KEY RESULTS:The inhibitory effect of RWPs on PDGF(AB)-induced release of VEGF was mimicked by delphinidin but not by quercetin, catechins, resveratrol, gallic acid or caffeic acid. In the anthocyanin class, not only delphinidin but also cyanidin prevented VEGF release whereas malvidin and peonidin were without effect. RWPs, delphinidin and cyanidin directly scavenged ROS and prevented the PDGF(AB)-induced formation of ROS in VSMCs. Malvidin and peonidin did not scavenge ROS but prevented the cellular formation of ROS. Although the p38 MAPK, ERK1/2 and JNK pathways have been involved in the PDGF(AB)-induced expression of VEGF, in our experiments, only phosphorylation of p38 MAPK and JNK was inhibited by RWPs, delphinidin and cyanidin. CONCLUSIONS AND IMPLICATIONS:Anthocyanins presenting a hydroxyl residue at position 3' are able to inhibit PDGF(AB)-induced VEGF expression by preventing activation of p38 MAPK and JNK in VSMCs.

journal_name

Br J Pharmacol

journal_title

British journal of pharmacology

authors

Oak MH,Bedoui JE,Madeira SV,Chalupsky K,Schini-Kerth VB

doi

10.1038/sj.bjp.0706843

subject

Has Abstract

pub_date

2006-10-01 00:00:00

pages

283-90

issue

3

eissn

0007-1188

issn

1476-5381

pii

0706843

journal_volume

149

pub_type

杂志文章

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