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标题：Inhibitory Effects of 6-Alkoxycoumarin and 7-Alkoxycoumarin Derivatives on Lipopolysaccharide/Interferon γ-Stimulated Nitric Oxide Production in RAW264 Cells
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作者：Morina Adfa ; Tomohiro Itoh ; Yosuke Hattori 等
期刊名称：Biological and Pharmaceutical Bulletin
印刷版ISSN：0918-6158
电子版ISSN：1347-5215
出版年度：2012
卷号：35
期号：6
页码：963-966
DOI：10.1248/bpb.35.963
出版社：The Pharmaceutical Society of Japan
摘要：Coumarin and its derivatives are well known for their anti-inflammatory and anti-oxidative effects. In this study, we synthesized 32 coumarin derivatives from commercially available 6-hydroxycoumarin (6HC) and 7-hydroxycoumarin (7HC) and examined their effects on lipopolysaccharide/interferon γ (LPS/IFNγ)-stimulated nitric oxide (NO) production in murine macrophage RAW264 cells. Among these derivatives, 6HC-8 (6-(3-phenylpropoxy)coumarin), 6HC-14 (6-(2-octynyloxy)coumarin), 7HC-14 (7-(2-octynyloxy)coumarin), and 7HC-16 (7-(3,5-dimethoxybenzyloxy)coumarin) markedly suppressed NO production at low concentration (25 µ M ). These synthesized coumarin derivatives also markedly inhibited inducible NO synthase (iNOS) protein and mRNA expression, as assessed by western blotting and quantitative real time-polymerase chain reaction (RT-PCR).
关键词：coumarin derivative;lipopolysaccharide;interferon-γ;nitric oxide;inducible nitric oxide synthase;RAW264 cell