Potential Antipsoriatic Agents: Lapacho Compounds as Potent Inhibitors of HaCaT Cell Growth
作者:Klaus Müller、Andreas Sellmer、Wolfgang Wiegrebe
DOI:10.1021/np990139r
日期:1999.8.1
the human keratinocyte cell line HaCaT. With an IC(50) value of 0.7 microM, beta-lapachone (4) displayed activity comparable to that of the antipsoriatic drug anthralin. 2-Acetyl-8-hydroxynaphtho[2,3-b]furan-4,9-dione (7), which was prepared in a four-step synthesis from 2,8-dihydroxy-1, 4-naphthoquinone, was the most potent inhibitor among the known lapacho-derived compounds and inhibited cell growth
在体外评估了代表 Tabebuia impetiginosa 内树皮最常见成分的许多 lapacho 化合物以及一些合成类似物对人角质形成细胞系 HaCaT 生长的影响。IC(50) 值为 0.7 microM,beta-lapachone (4) 显示出与抗银屑病药物蒽林相当的活性。2-Acetyl-8-hydroxynaphtho[2,3-b]furan-4,9-dione (7) 是由 2,8-dihydroxy-1, 4-naphthoquinone 经四步合成得到的已知的 lapacho 衍生化合物中的强效抑制剂并抑制细胞生长,IC(50) 值为 0.35 microM。此外,lapacho 的其他活性成分抑制角质形成细胞的生长,IC(50) 值在 0.5-3.0 microM 范围内。然而,正如已经观察到的蒽林,用这些有效的 lapacho 化合物处理 HaCaT 细胞也对质膜