Oscarellin, an Anthranilic Acid Derivative from a Philippine Sponge, <i>Oscarella stillans</i>, as an Inhibitor of Inflammatory Cytokines in Macrophages
作者:Ii-Seul Kwon、Jong Hwan Kwak、Suhkneung Pyo、Hee-Weon Lee、AeRyon Kim、Francis J. Schmitz
DOI:10.1021/acs.jnatprod.6b00787
日期:2017.1.27
A new anthranilic acid derivative (1) was isolated from a Philippine sponge, Oscarella stillans (Bergquist and Kelly). The structure of compound 1, named oscarellin, was determined as 2-amino-3-(3′-aminopropoxy)benzoic acid from spectroscopic data and confirmed by synthesis. We examined the immunomodulating effect of compound 1 and its mechanism in lipopolysaccharide (LPS)-stimulated RAW 264.7 macrophages
从菲律宾海绵Oscarella stillans(Bergquist和Kelly)中分离出一种新的邻氨基苯甲酸衍生物(1)。由光谱数据确定化合物1的名为oscarellin的结构为2-氨基-3-(3'-氨基丙氧基)苯甲酸,并通过合成确认。我们检查了化合物1的免疫调节作用及其在脂多糖(LPS)刺激的RAW 264.7巨噬细胞中的作用。我们的数据表明,预处理1(0.1–10μM)2 h可显着降低肿瘤坏死因子-α(TNF-α)和白介素(IL)-6的表达。另外,化合物1在LPS刺激的RAW 264.7细胞中,p53抑制了细胞外信号调节激酶1/2(ERK1 / 2)和c-Jun NH 2末端激酶(JNK)的激活,但不抑制p38丝裂原激活的蛋白激酶(MAPK)的激活。化合物1废除了LPS诱导的核因子-κB(NF-κB)和激活蛋白1(AP-1)的活性,而激活转录因子3(ATF-3)的诱导增加。两者合计,