简介：Hepatocellularcarcinoma(HCC)isoneofthemostdeadlyhumancancers,butitisverydifficulttoestablishananimalmodelbyusingsurgicalspecimens.Inthepresentexperiment,histologicallyintactfreshsurgicalspecimensofHCCweresubcutaneouslytransplantedinnon-obesediabetic/severecombinedimmunodeficienccy(NOD/SCID)mice.Thebiologicalcharacteristicsoftheoriginalandthecorrespondingtransplantedtumorsandcelllineswereinvestigated.Theresultsshowedthat5newanimalmodelsand2primarycelllinesweresuccessfullyestablishedfromsurgicalspecimens.Hematoxylin-eosinstainingshowedthatxenograftsretainedmajorhistologicalfeaturesoftheoriginalsurgicalspecimens.Thetwonewcelllineshadbeencultivatedfor3yearsandsuccessivelypassagedformorethan100passagesinvitro.Themorphologicalcharacteristicsandbiologicfeaturesofthetwocelllinesweregeneticallysimilartotheoriginaltumor.Thesubcutaneoustransplantanimalmodelswithhistologicallyintacttumortissueandprimarycelllinescouldbeusefulforinvivoandinvitrotestingofanti-cancerdrugsandbeidealmodelstostudyvariousbiologicfeaturesofHCC.

简介：Objective:MemorystemTcells(Tscm)haveattractedattentionbecauseoftheirenhancedself-renewal,multipotentcapacity,andanti-tumorcapacities.However,littleisknownaboutTscminpatientswithrenalclearcellcarcinoma(RCC)andtheroleofWntsignalinginthesecells.WeevaluatedTscmfromRCCpatientsconcerningtheiractivationofWntsignalinginvitroandexploredthemechanismofpreferentialsurvival.Methods:FlowcytometryidentifiedsurfacemarkersandcytokinesproducedfromaccumulatedTscminthepresenceoftheglycogensynthasekinasebetainhibitorTWS119.Apoptosiswasevaluatedafterinductionusingtumornecrosisfactor-alpha.ImmunofluorescenceandWesternblotanalyseswereusedtoinvestigatetheactivationofthenuclearfactor-kappaB(NF-КB)pathway.Results:RCCpatientshadasimilarpercentageofCD4~+andCD8~+Tscmashealthydonors.ActivationofWntsignalingbyTWS119resultedintheaccumulationofTscminactivatedTcells,butreversalofdifferentiatedTcellstoTscmwasnotachieved.PreferentialsurvivalofTscmwasassociatedwithincreasedanti-apoptoticabilitymediateddownstreamoftheNF-КBactivationpathway.Conclusions:ThefindingthatTscmcanaccumulatebyWntsignalinginvitroinbloodfromRCCpatientswillhelpindevisingnewcancertherapystrategiesofTscm-basedadoptiveimmunotherapy,suchasdendriticcell-stimulatedTscm,andTcellreceptororchimericantigenreceptor-engineeredTscm.

简介：Objective:Toidentifydifferentiallyexpressedlongnon-codingRNAs(lncRNAs)involvedinthemetastasisofepithelialovariancancer.Methods:AninvitroinvasionassaywasperformedtovalidatetheinvasivecapabilityofSKOV3andSKOV3.ip1celllines.TotalRNAwasthenextracted,andmicroarrayanalysiswasperformed.Moreover,ninelncRNAswereselectedforvalidationusingRT-qPCR.Results:ComparedwiththeSKOV3cells,theSKOV3.ip1cellssignificantlyimprovedintheinvitroinvasiveactivity.Ofthe4,956lncRNAsdetectedinthemicroarray,583and578lncRNAswereupregulatedanddownregulated,respectively,inSKOV3.ip1cells,comparedwiththeparentalSKOV3cells.SevenoftheanalyzedlncRNAs(MALAT1,H19,UCA1,CCAT1,LOC645249,LOC100128881,andLOC100292680)confirmedthederegulationfoundbymicroarrayanalysis.Conclusion:LncRNAsclustersweredifferentiallyexpressedinovariancancercellswithvaryingmetastaticpotentials.ThisresultindicatesthatsomelncRNAsmightexertapartialorkeyroleinepithelialovariancancermetastasis.FurtherstudiesshouldbeconductedtodeterminetherolesoftheselncRNAsinovariancancermetastasis.

简介：Objective:Earlymetastasisisamajorbiologicalfeatureofpancreaticcancer.ThecurrentstudyexaminedwhethersilencingSlc38a1,ageneinvolvedinenergymetabolism,usingshorthairpinRNA(shRNA)couldinhibitthegrowth,migration,andinvasivenessofpancreaticcancercells.Methods:AseriesofSlc38a1shRNAsweredesignedandclonedintothepGPU6/GFP/Neovectors.AnshRNAwiththemostefficaciousinhibitoryactiononSCL38A1expression(65%inhibition)uponscreeninginDH5αbacteriawasusedtotransfectSW1990humanpancreaticcancercells.Cellgrowth,migration,andinvasivenesswereexaminedusingcellcountingkit-8,BoydenchamberwithoutandwithMatrigel,respectively.Results:TransfectionofSW1990cellswiththeSLCs38A1shRNAsignificantlydecreasedtheproliferation(P<0.0001)andmigratorypotential(by46.7%,P=0.0399)ofthecancercells.Invasiveness,however,wasnotaffected.Conclusions:InhibitingSlc38a1usingshRNAtechnologycoulddecreasethegrowthandmigrationofrepresentativepancreaticcancercells.However,thefactthatinvasivenesswasnotaffectedsuggestedthatSLC38A1isunlikelytoberesponsibleforearlymetastasis.

简介：Objective:Smallcelllungcarcinoma(SCLC)isconsideredoneofthemostaggressivetypesoflungcancerduetoitsrapidgrowthandearlymetastasis.NotumormarkersortherapeutictargetshavebeendemonstratedtobespecificoreffectiveinSCLCtodate.ThisstudyaimstoevaluatethepotentialofFlotillin1(Flot1)asatargetofSCLCtreatment.Methods:Flot1expressionlevelinthetissueofSCLCandothertissueoflungdiseasewasdetectedusingimmunohistochemicalstaining.TranswellandMatrigelassayswereemployedtoexaminemigrationandinvasionofcancercells.FlowcytometryandxCELLigencesystemwereusedtoevaluatecellapoptosisandcellviability,respectively.ExpressionlevelsofFlot1,epithelialmesenchymaltransition(EMT)markerE-cadherin,vimentin,cyclinD1,TGF-β-Smad2/3,andp-AKTwereexaminedusingWesternblot.Furthermore,xenografttumorinnudemicewasusedtoevaluatethegrowthandmetastasisofNCI-H446cellsinvivo.Results:OurresultsdemonstratedthatFlot1ishighlyexpressedinSCLCsamplesandthatitsexpressioncorrelatesstronglywithclinicalstage,distantmetastasis,andpoorsurvival.TheknockdownofFlot1decreasedthegrowth,migration,andinvasivenessofSCLCcellsandreversedEMTphenotypeinvitroandinvivo,whileenhancedFlot1expressionexhibitedtheoppositebehavior.GeneexpressionprofileanalysisdemonstratedthatFlot1-regulatedgenesfrequentlymappedtotheAKTandTGF-β-Smad2/3pathways.OurresultsfurtherrevealedthatFlot1affectedtheprogressionofSCLCviaregulationofEMTprogression.Conclusions:ThesefindingsindicatedanoncogenicroleofFlot1viapromotingEMTinSCLCandsuggesteditspotentialasatumormarkerandprognosticindicator.

简介：Objective:Todeterminewhetherpyrrolidinedithio-carbamate(PDTC)enhancesTNFα-inducedapoptosisinculturedbreastcancercellsandexploretheroleofNF-κBinTNFα-inducedapoptosis.Methods:HumanbreastcancercelllinesMCF-7andMDA-MB-435sweretreatedwithTNFα,PDTCandcombinationtherapy.CellsurvivalsweredeterminedbyMTTassay.ApoptosiswasdetectedbyTUNELandflowcytometry.NF-κBDNAbindingactivitywasdetectedusingelectrophoresismobilityshiftassay(EMSA).WesternblotswereperformedtodemonstrateIκBα(InhibitorproteinofnuclearfactorκB)phosphorylationanddegradation.Results:CellgrowthwasnotsuppressedbyeitherTNFα(2000U/mlorless)orPDTCalone.BothcelllinestreatedwithTNFα(2000U/ml)combinedwithPDTC(50μmol/L)showedsignificantgrowthinhibition.PDTCinhibitedTNFα-inducedIκBαphosphorylationanddegradationinbothcelllines.EMSAshowedthatPDTCcontinuouslyinhibitedTNFαinducedNF-κBDNAbindingactivity.TNFαinducedapoptosis(TUNEL)wasincreasedsignificantlywhenbothcellswerepretreatedwithPDTC,andthiswasconfirmedbyFlowcytometry.Conclusion:PDTCenhancesTNFα-inducedapoptosisviainhibitingIκBαphosphorylationanddegradationinhumanbreastcancercells.NF-κBprotectsagainstTNFα-inducedapoptosis.

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简介：Objective:TolookforthefurtherevidenceforHPVL1HPV16E6,HPV18E6andEBVascarcinogenicfactorsinlaryngealcarcinoma.Method:weexaminedrepresentativenumbersofspecimensfromlaryngealcancerwithhighlysensitivePCRtechniqueforthepresenceofHPVL1andhigh-risktypesHPV16E6,HPV18E6andEBVLMP1.Results:UsingPCRdetection,7.3%sampleswereHPVL1positive,52.03%wereHPV16E6positive,30.89%wereHPV18E6positiveand9.13%wereEBVLMP1positive.ThelowincidenceofHPVL1andhighincidenceofHPV-16E6andHPV18E6genessuggestthatHPVmightbeintegratedintotumorcells.OurresultssupportaroleofHPV-16andHPV-18infectioninthepathogenesisoflaryngealcarcinomainChina.Conclusion:IntegrationofE6intohostgenomeandstableexpressionofthesegenesmaybeassociatedwiththecarcinogenesisoflaryngealcarcinoma.HPV-16andHPV-18maysynergisticallyfunctiononthepathogenesisoflaryngealcarcinoma.Ourresultssuggestanassociationoflaryngealcarcinogenesisandinfectionwiththehigh-riskHPVtypes16,HPV18andEBV.

简介：Objective:Fusogenicendogenousretroviralsyncytinplaysanimportantroleintheformationofsyncytiotrophoblastsinhumanplacenta.Apartfromitsexpressioninplacenta,brainandtestis,syncytinhasalsobeenfoundinmanycancers.Althoughsyncytinhasbeenproposedtoserveasapositiveprognosticmarkerinsomecancers,theunderlyingmechanismisunclear.Theaimofthisstudyistoevaluatetheeffectsofsyncytinexpressionontheinvasivephenotypeofmelanomacells.Methods:Theeukaryoticexpressionplasmidforsyncytin-EGFPwasconstructedandtransfectedintoB16F10melanomacells.TheeffectofsyncytinontheinvasionpotentialoftumorcellswasevaluatedinB16F10sublinecellsthatstablyexpressedsyncytin-EGFPfusionproteinorEGFPalone.Results:TheB16F10sublinesthatstablyexpressedsyncytin-EGFPorEGFPalonewereestablishedrespectivelyandconfirmedbyimmunofluorescentandimmunoblottingassay.SyncytinexpressioninB16F10cellswasassociatedwithdecreasedcellproliferation,migrationandinvasion.Multinucleatedgiantcellsthatcontainedasmanyasfivenucleiwereinducedinsyncytin-expressingcells.Inaddition,syncytinexpressiondidnotalterthesensitivityofB16F10cellstotrichosanthin,atoxinthatdamagessyncytiotrophoblastsmoreefficientlythanothertissues.Conclusions:Theseresultssuggestthatsyncytinexpressioninsomecancersmayconfinetheirinvasionpotentialandthusserveasapositiveprognosticfactor.更多还原

简介：调查5-Aza-2-deoxycytidine(5-Aza-Cdr)和trichostatinA(TSA)的效果的目的在vivo并且在vitro在Hep-2房间线上与表示p53侵入人体气管粘膜的病菌(Ad-p53)结合了，以便在laryngocarcinoma的生物治疗探索它的可能性。

简介：在忍受人的上皮的裸体老鼠在下的xenotransplanted肿瘤的生长上调查dys心理的压力效果的目的卵巢的癌，和对P53和NFBp65表情的影响。

简介：Monoclonalantibody(MAb)toratlivercyto-chromeP-450jisozyme,anactivatingenzymespecifictonitrosaminemetabolism,wasusedcoupledwithimmunoblotting,densitometerscanningofSDS-PAGEgelsandimmunohistochemicaltechnique.ThetraceP-450HSjisozyme(Mr.51.5Kd)wasfoundinhumangastricmucosa.ItwassimilartoP-450jinmolecularweight,catalyticandimmunochemicalproperties.TheconcentrationsofP-450HSjinmucosaoflessercurvaturewerehigherthanthoseingreatercurvature.Thismightbeoneoftheimportantreasonsthatlessercurvatureisthecommonestareaforgastriccarcinoma.ButtherewaspossiblylessP-450HSjingastricmucosawithcancer.Im-munohistochemically,P-450HSjwasdiscoveredinthecytoplasmofsomeglandularepithelialcells,especiallyintheglandswithhyperplasticandintestinalmetaplasticchangesadjacenttocarcinoma.Itwasalsofoundinsomenormalglandsandintumorcellsofhigh-differentiatedadenocarcinoma,butnotinthoseoflow-differentia

简介：目的：开发一个新奇方法由DHPLC检测CpGmethylation。方法：在DNA与钠重亚硫酸盐被对待以后，失配修理基因hMLHl倡导者被聚合酶链反应(PCR)放大。DHPLC被用来在他们的部分使中毒的温度分开PCR产品。BstUI消化试金也为比较学习被使用。结果：A294bp乐队被PCR在结肠癌房间线RKO和胃的癌症房间线PACM82的每件DNA样品以后获得。这二个乐队能被DHPLC在53掳C(为RKO的保留时间6.7min对为PACM82的6.2min)完全分开。当PACM82不是methylated时，自从methylation能保护C的变换到T并且在重亚硫酸盐治疗以后使更高的C/G满意，我们断定在RKO房间的hMLHl倡导者是methylated，导致推迟的时间。从BstUI消化试金的与那些一致的这些结果。结论：在hMLHl的CpG岛的Methylation能被DHPLC在重亚硫酸盐修正以后方便地检测。

简介：客观尽管放射疗法在非小的房间肺癌症(NSCLC)的局部疗法起一个主要作用，很少在这个肿瘤对照耀的分子的效果被知道。在现在的学习，我们在照耀以后为他们TNF-α的内长的生产检验了二根NSCLC房间线。在NSCLC房间线调查导致放射的TNF-α生产。二个人的NSCLC房间衬里的方法(A549：有鳞；NCI-H596：adenosquamous)在暴露以后为他们的TNF-αmRNA(即时RT-PCR)被调查到不同照耀剂量(2，5，10，20，30，40Gy)；时间间隔(1，3，6，12，24，48或72h)。TNF-αmRNA表示被即时RT-PCR确定。clonogenic幸存与2在照耀以后被评估，4，6；8Gy。非照耀的NSCLC房间不或很展出了的结果低TNF-α表示。为NCI-H596房间线，TNF-α表示显著地被提高1～12h(最大的6h：相对unirradiated房间的568fold增加)以一种时间依赖者方式。导致放射的增加能比正常控制高在照耀以后被观察，在40Gy最大的2Gy到达，与83次。这些房间线的clonogenic幸存是将近相同的。结论NCI-H596房间在一时间生产TNF-α追随者照耀的重要数量--并且剂量依赖者举止。支持inflammatorycytokineTNF-α是为放射肺炎的致病的一个关键调停人。在NSCLC房间的导致放射的内长的TNF-α表示可以影响邻近肿瘤的正常的肺；可以与病人的不利临床的结果被联系。

简介：Objective:ToanalyzethedifferentiallyexpressedcDNAsequencesrelatedtochlorophyllin(CHL)mediatedinhibitionofmalignanttransformationofhumanbronchia1epithelialcellline(16HBE).Methods:16HBEcellstreatedwithchlorophyllinandanti-BPDEwereconductedastester,16HBEcellstreatedonlywithanti-BPDEwereconductedasdriver,andcDNArepresentationaldifferenceanalysis(cDNARDA)wasusedtocomparethedifferentialgeneexpressionbetweenthetwokindsofcells.ThecDNAfragmentswereligatedtopGEM-TvectorandtransformedintoJM109bacteria.TheplasmidDNAwassequencedandcomparedwithdatabaseinGenBankbyBLASTN.Results:Amongthe5clonedcDNAsequences,threewerenovelandwereregisteredindbESTdatabase,twoshowedsequencehomologytoalpha-enolaseandanewlyfoundgeneribosomalproteinS18/S6-like.Conclusion:These5cDNAsequencesmightplayimportantrolesinantitransformingeffectofchlorophyllin.

简介：客观：为了调查抵抗和颠倒的机制，在导致cisplatin的multidrug抵抗ligustrazine和cyclosporinA完成卵巢的癌症房间线3Ao/cDDP。方法：用每周期在30mgcisplatin从临床的化疗计算的相应剂量，我们建立了3Ao/cDDP，3Ao每次在10渭g/ml在常规间隔并且反复暴露了到cisplatin的高级集中24个小时。LRP，MRP，P-gp，GST蟺和TopoII的表情是与FCM检测的份量上。为药抵抗颠倒，没有cytotoxicity，cyclosporinA和ligustrazine在最大的剂量单身地或在联合被管理。抑制率被MTT试金决定。结果：3Ao/cDDP在4.5个月以后被建立，与抵抗因素1.6它类似于临床的抵抗度。MRP和P-gp的低表示层次在3Ao和3Ao/cDDP被发现(P>0.05)，并且在3Ao/cDDP的LRP和GST蟺表示层次比在3Ao的那些显著地高(P<0.005andP<0.05，分别地)，并且在3Ao/cDDP的TopoII显著地更低对3Ao(P<0.05)。cDDP的抑制率是20.807卤0.015%，加ligustrazine的cDDP27.421卤0.07%(P>0.05对cDDP)，加cyclosporinA的cDDP49.635卤0.021%(P<0.01对cDDP)，并且加ligustrazine和cyclosporinA的cDDP58.861卤0.014%(P<0.01对cDDP)。结论：3Ao/cDDP，由cisplatin导致了并且由为上皮的卵巢的癌症模仿临床的化疗的特征建立了，是为cisplatinresistanceinvitro的调查的一个理想的模型。在3Ao/cDDP的Cisplatin抵抗能被说明为由更高的LRP，GST蟺和更低的TopoII表示并且没与MRP或P-gp被联系。Ligustrazine没在A能颠倒的cisplatin抵抗，而是cyclosporin上有重要颠倒效果抵抗有效地。

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简介：目的将在细胞生长，细胞周期和p21wap1/cip1和p27kip1的表情上调查triptolide(TPL)的效果。方法MTT试金被用来在人的多重骨髓瘤RPMI-8226房间在triptolide处理以后决定房间生存能力。房间周期分发上的效果被流动cytometry决定。半量的反向的transcription-PCR被用来检验p21wap1/cip1和p27kip1的mRNA表情。p21wap1/cip1和p27kip1的蛋白质表情被西方的污点决定。改变集中的结果Triptolide以剂量相关、时间相关的时尚导致了房间生存能力抑制并且在RPMI-8226房间引起了G0-G1房间周期前进的阶段拘捕。伴有p21wap1/cip1和p27kip1的表情的起来调整的这些效果。这些结果建议那triptolide的结论经由起来调整的p21wap1/cip1和p27kip1禁止房间增长和房间周期前进，triptolide可以通过这条小径施加它的反癌症活动。