简介:目的:探讨陕重楼甾体皂苷类单体A(BM-26)豆甾醇-3-O-β-D-吡哺葡萄糖苷对人肝癌SMMC-7721细胞增殖的影响。方法:将不同浓度单体A(BM-26)与人肝癌SMMC-7721细胞分别在24、48、72h处理后,采用MTT法,测定吸光度A值,并计算细胞增殖抑制率,检测陕重楼甾体皂苷类单体A(BM-26)对肿瘤细胞增殖的影响。结果:不同质量浓度陕重楼甾体皂苷类单体A(BM-26)对人肝癌SMMC-7721细胞均有抑制作用:24h处理时,质量浓度为8、40、200μg·ml^-1,1、5、25mg·mL^-1组与对照绀相比较,吸光度A值有显著性降低(P〈0.01或P〈0.05);48h处理时,质量浓度为0.3、1.6、8、40、200μg·mL^-1,1mg·mL^-1组与对照组相比较,吸光度A值有显著性降低(P〈0.01或P〈0.05);72h处理时,质量浓度为8、40性g·mL^-1组与对照组相比较,吸光度A值有显著性降低(P〈0.01或P〈0.05)。其中质量浓度为8μg·ml^-1时,在24、48、72h抑制率分别为45%、41%、36%。结论:陕重楼单体A(BM-26)对人肝癌SMMC-7721细胞增殖具有一定的抑制作用,甘‘最蛆抑制质量浓度为8μg·mL^-1,有效抑制质量浓度范围是8~40μg·mL^-1。
简介:Thepresentstudywasdesignedtosynthesize2-Cyano-3,12-dioxooleana-1,9(11)-en-28-oate-13β,28-olide(1),alactonederivativeofoleanolicacid(OA)andevaluateitsanti-inflammatoryactivity.Compound1significantlydiminishednitricoxide(NO)productionanddown-regulatedthemRNAexpressionofiNOS,COX-2,IL-6,IL-1β,andTNF-αinlipopolysaccharide(LPS)-stimulatedRAW264.7cells.FurtherinvivostudiesinmurinemodelofLPS-inducedacutelunginjury(ALI)showedthat1possessedmorepotentprotectiveeffectsthanthewell-knownanti-inflammatorydrugdexamethasonebyinhibitingmyeloperoxidase(MPO)activity,reducingtotalcellsandneutrophils,andsuppressinginflammatorycytokinesexpression,andthusamelioratingthehistopathologicalconditionsoftheinjuredlungtissue.Inconclusion,compound1couldbedevelopedasapromisinganti-inflammatoryagentforinterventionofLPS-inducedALI.