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1、天然產(chǎn)物研究與開發(fā)NatProdRe*Dev2014,26:1380-1384文章編號:1001-6880(2014)9-1380-05長裂苦苣菜水提取物對肺癌細胞A549增殖和凋亡的影響賀燕云,劉小敏,張彩艷,華子義上海大學生命科學學院實驗教學中心,上海2004.44-摘要:為了探討長裂苦苣菜水提取物對肺癌細胞A549的影響,本研究用不同濃度的長裂苦苣菜水提取物作用于體外培養(yǎng)的A549細胞,從細胞形態(tài)(顯微鏡觀察)、細胞增殖活力(CCK-8法)、細胞凋亡(AnnexinV-HTCJPI染色)、線粒體膜電位(jc-1染色)和細胞內(nèi)活性氧水平(熒光探針DC
2、FH-DA染色)幾個方面檢測長裂苦苣菜水提取物對體外培養(yǎng)的A549細胞的影響。當處理濃度達到1mg/mL作用細胞48h后,細胞出現(xiàn)明顯皺縮的凋亡形態(tài)學特征,與對照組相比處理組細胞增殖活力明顯下降(P<0.05)。進一步用流式細胞儀檢測發(fā)現(xiàn)≥1mg/mL的處理濃度作用細胞48h后細胞凋亡率顯著提高(P<0.05),同時檢測到處理組細胞的膜電位都明顯下降,細胞內(nèi)活性氧水平明顯上升,都呈劑量依賴關(guān)系。這些結(jié)果表明長裂苦苣菜水提取物可以誘導A549細胞凋亡,并抑制其生長和增殖,是一種潛在的預防和抑制腫瘤生長的藥食兩用植物。關(guān)鍵詞:長裂苦苣菜;肺癌細胞;增殖;凋亡
3、中圖分類號:Q28文獻標識碼: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長裂苦苣菜(Sonchusbr
8、achyotusDC.)是菊科植保健作用較為明顯。文獻報道苦苣菜具有消炎、抗物苦