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时间:2020-05-20
《长裂苦苣菜水提取物对肺癌细胞A549增殖和凋亡的影响-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、天然产物研究与开发NatProdRe*Dev2014,26:1380-1384文章编号:1001-6880(2014)9-1380-05长裂苦苣菜水提取物对肺癌细胞A549增殖和凋亡的影响贺燕云,刘小敏,张彩艳,华子义上海大学生命科学学院实验教学中心,上海2004.44-摘要:为了探讨长裂苦苣菜水提取物对肺癌细胞A549的影响,本研究用不同浓度的长裂苦苣菜水提取物作用于体外培养的A549细胞,从细胞形态(显微镜观察)、细胞增殖活力(CCK-8法)、细胞凋亡(AnnexinV-HTCJPI染色)、线粒体膜电位(jc-1染色)和细胞内活性氧水平(荧光探针DC
2、FH-DA染色)几个方面检测长裂苦苣菜水提取物对体外培养的A549细胞的影响。当处理浓度达到1mg/mL作用细胞48h后,细胞出现明显皱缩的凋亡形态学特征,与对照组相比处理组细胞增殖活力明显下降(P<0.05)。进一步用流式细胞仪检测发现≥1mg/mL的处理浓度作用细胞48h后细胞凋亡率显著提高(P<0.05),同时检测到处理组细胞的膜电位都明显下降,细胞内活性氧水平明显上升,都呈剂量依赖关系。这些结果表明长裂苦苣菜水提取物可以诱导A549细胞凋亡,并抑制其生长和增殖,是一种潜在的预防和抑制肿瘤生长的药食两用植物。关键词:长裂苦苣菜;肺癌细胞;增殖;凋亡
3、中图分类号:Q28文献标识码:AApoptosisofLungCancerLineA549InducedbySonchusbranchyotusDCAqueousExtractsHEYan—yun,LIUXiao—ruing,ZHANGCai—yan,HUAZi—yiExperimentalCenterTorSciences,SchoolofSciences,ShanghaiUniversity,Shanghai200444,ChinaAbstract:ToillustratetheefectsofSo淞branchyotusDC(SBDC)aqueou
4、sextractsonhumanlungcancerA549cells,assays,includingmorphologiechangesobservedbymicroscope,cellproliferationvitalitytestedbycelgrowthassayusingcck8kit,theapoptosisdetectedbyHowCytometry,mitochondrialmembranepotentialasses8edwiththefluorescentprobeJC-1andreactiveoxygenspeciesforma
5、tionmeasuredbyDCFH-DAstaining,wereperformed.Observedwithmicro-scope,cellstreatedwithhishdose(I>1m#mL)ofSBDCwereshrunkenandthemorphologicalcharacteristicsofapop-tosiswasobviouscomparedwiththecontrolgroup.Also,cellproliferationWagsignificantlyinhibitedcomparedwiththecontrolgroup(P<
6、0.05).Furthermore,floweytometryanalysisrevealedtheapoptesiscellstreatedwithhishdoseofSB—DC(~>lmg/mL)for48hoursweresignificantlyincreasedcomparedwiththecontrolgroup.Finally。it嗍foundinalltreatmentgroupsthatthesignificantdecreaseofcelmitochondrialmembranepotentialandtheincreaseofrea
7、ctiveoxy-genspeciesleve1.TheseresultsdemonstratedthatSBDCmayinducehumanlungcancerA549cellsapoptesisandinhibittheceilsgrowthandproliferation.SBDCisapotentialedibleherbforcancerpreventionandtreatment.Keywords:SonchusbranchyotusDC;lungcancercel;apoptosis;proliferation长裂苦苣菜(Sonchusbr
8、achyotusDC.)是菊科植保健作用较为明显。文献报道苦苣菜具有消炎、抗物苦
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