Inhibitory Effects of Furanocoumarins Isolated from the Roots of<i>Angelica dahurica</i>on Prostaglandin E<sub>2</sub>Production
作者:Ban, Hyun Seung、Lim, Soon Sung、Suzuki, Katsuya、Jung, Sang Hoon、Lee, Sanghyun、Lee, Yeon Sil、Shin, Kuk Hyun、Ohuchi, Kazuo
DOI:10.1055/s-2003-39702
日期:2003.5
We have isolated five furanocoumarins, byakangelicin, phellopterin, imperatorin, isoimperatorin, and oxypeucedanin methanolate, from the roots of Angelica dahurica (Umbelliferae) and prepared five semi-synthesized compounds by the partial reduction of each isolated furanocoumarin, and the effects of these compounds on lipopolysaccharide (LPS)-induced prostaglandin E2 (PGE2) production in rat peritoneal macrophages were examined. Among these compounds, imperatorin showed the most potent inhibitory activity on the LPS-induced PGE2 production. It also inhibited the LPS-induced expressions of cyclooxygenase (COX)-2 and microsomal prostaglandin E synthase (mPGES). These findings suggest that the inhibitory effect of furanocoumarins on the LPS-induced PGE2 production is due to the inhibition of the expression of COX-2 and mPGES.
我们从大兴安岭当归的根部(伞形科)分离出了五种呋喃香豆素,分别是巴尔根素、苯丙素、将军素、异将军素和去氧伞花酸甲醇酯,并通过对每种分离出的呋喃香豆素进行部分还原,合成了五种半合成化合物。我们研究了这些化合物对脂多糖(LPS)诱导的前列腺素E2(PGE2)产生在大鼠腹腔巨噬细胞中的影响。在这些化合物中,将军素对LPS诱导的PGE2产生表现出最强的抑制活性。它还抑制了LPS诱导的环氧合酶(COX)-2和微粒前列腺素E合成酶(mPGES)的表达。这些发现表明,呋喃香豆素对LPS诱导的PGE2产生的抑制作用可能是由于抑制了COX-2和mPGES的表达。