Baicalein attenuates intimal hyperplasia after rat carotid balloon injury through arresting cell-cycle progression and inhibiting ERK, Akt, and NF-κB activity in vascular smooth-muscle cells

Chieh Yu Peng, Shiow Lin Pan, Ying Wen Huang, Jih Hwa Guh, Ya Ling Chang, Che Ming Teng

研究成果: 雜誌貢獻文章同行評審

39 引文 斯高帕斯(Scopus)

摘要

Baicalein (5,6,7-trioxyflavone-7-O-beta-D-glucuronide) derived from the Chinese herb Scutellaria baicalensis is well known as a lipoxygenase inhibitor. We investigated baicalein-mediated inhibitory effects on vascular smooth-muscle cell (VSMC) proliferation and intimal hyperplasia by balloon angioplasty in the rat. In vascular injury studies, baicalein significantly suppressed intimal hyperplasia by balloon angioplasty. Baicalein significantly inhibited cell proliferation via a lipoxygenase-independent pathway using [3H] thymidine incorporation, 3-(4,5-dimethylthiazol-2-yl)2,5-diphenyltetrazolium bromide (MTT), and flow cytometry assays. At the concentrations used, no cytotoxic effect on cell culture was found. Baicalein blocks cell-cycle progression in S/G2/M phase, consistent with the cell-cycle effects, baicalein significant inhibited cyclin D1, p42/44 mitogen-activated protein kinase (MAPK), and Akt phosphorylation without change in the other cell-cycle regulatory proteins. Furthermore, baicalein attenuated serum-induced deoxyribonucleic acid (DNA) binding activity of nuclear factor kappa B (NF-κB). These results show that baicalein blocks cell proliferation via blocking cell-cycle progression and proliferating events, including p42/44 MAPK and Akt activations as well as NF-κB activation. It also inhibits intimal hyperplasia after balloon vascular injury in the rat, indicating the therapeutic potential for treating restenosis after arterial injury.
原文英語
頁(從 - 到)579-588
頁數10
期刊Naunyn-Schmiedeberg's Archives of Pharmacology
378
發行號6
DOIs
出版狀態已發佈 - 十二月 2008
對外發佈

ASJC Scopus subject areas

  • 藥理

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