简介：

简介：Objective:Squamousesophagealcarcinomaishighlyprevalentindevelopingcountries,especiallyinChina.TuBeiMu(TBM),atraditionalfolkmedicine,hasbeenusedtotreatesophagealsquamouscellcarcinoma(ESCC)foralongterm.tubeimosideI(TBMS1)isthemaincomponentofTBM,exhibitinggreatanticancerpotential.Inthisstudy,weinvestigatedthemechanismofTBMS1cytotoxiceffectonEC109cells.Methods:Comparativenuclearproteomicapproachwasappliedinthecurrentstudyandweidentifiedseveralalteredproteinspots.Furtherbiochemicalstudieswerecarriedouttodetectthemitochondrialmembranepotential,cellcycleandcorrespondingproteins’expressionandlocation.Results:SubcellularproteomicstudyinthenucleusfromEC109cellsrevealedthatalteredproteinswereassociatedwithmitochondrialfunctionandcellproliferation.FurtherbiochemicalstudiesshowedthatTBMS1-inducedmoleculareventswererelatedtomitochondria-inducedintrinsicapoptosisandP21-cyclinB1/cdc2complex-relatedG2/Mcellcyclearrest.Conclusions:ConsideringtheconventionalapplicationofTBMinesophagealcancer,TBMS1thereforemayhaveagreatpotentialasachemotherapeuticdrugcandidateforESCC.

简介：

简介：Someantitumoractivitiesofcomponent(E),extractedfromtherootofFagopynumCymosum(Trev)Meisn(FCTM),haverecentlybeendiscoveredinvivoandinvitro.ThecomponentE(CE)’spatternofactionwithtumorcellularDNAatthemolecularpharmacologicallevelwasinvestigatedbymacromolecularsynthesisexperiment(MSE)andhumanDNAinteractionsystemestablishedinourlaboratory.Theexperimentsdemonstratedthat,invitro,theagentcouldmarkedlyinhibittheincorporationof3H-TdRintothecellularDNA,andtheIC50inP388leukemiacellandinSGC-7901cellwas17.86μg/mland110.4μg/ml,respectively.Theagent,atmg/mllevel,couldproduceanintercalationreversionpatternwithDNAwithinashorttime(2hours).Butwhentheintervalwasprolongedforover4hours,theactionchangedtointercalationirreversiblepattern.Accordingtotheseobservations,theauthorsinferthatCEinteractswithDNAintwoways-directlyandindirectly.Theindirectaction,especiallyinlowconcentr

简介：Objective:Toinvestigatetheeffectofbreast-conservationtherapyinearlystagebreastcancer.Methods:Atotalof234earlystagebreastcarcinomapatientsreceivedbreastconservingtreatmentinourhospital.Aftertheoperation,theyunderwentadjuvantchemotherapyandradiotherapy.Allofthesepatientsdesiredtopreservetheirbreasts.Results:Aftermedianfollow-upof29.46months(rangefrom3to100months),3caseshadlocalrelapseand8caseshaddistantmetastasis.Theoverallsurvivalrateof5yearwas96.7%,andthediseasefreesurvivalrateof5yearwas87.85%.Conclusion:Forearlystagebreastcarcinomapatients,classicquadrantectomy,axillarydissectionandpost-operativeadjuvantchemotherapyandradiotherapyleadtoexcellentlocalcontrolandgoodsurvival.

简介：ＴＣＥＬＬＲＥＣＥＰＴＯＲＧＥＮＥＲＥＡＲＲＡＮＧＥＭＥＮＴＡＮＡＬＹＳＩＳＩＮＴＨＥＰＲＩＭＡＲＹＣＵＴＡＮＥＯＵＳＴＣＥＬＬＬＹＭＰＨＯＭＡＱｉｕＢｉｎｇｓｅｎ邱丙森ＷａｎｇＰｉｎｇ１王平ＧａｏＨｏｎｇｙａｎｇ２高红阳ＳｈａｎｇＹｉｆｅｉ２...

简介：MicroRNAs(miRNAs)aresmall,non-codingsingle-strandedRNAsthatcanmodulatetargetgeneexpressionatposttranscriptionallevelandparticipateincellproliferation,differentiation,andapoptosis.Tcellshaveimportantfunctionsinacquiredimmuneresponse;miRNAsregulatethisimmuneresponsebytargetingthemRNAsofgenesinvolvedinTcelldevelopment,proliferation,differentiation,andfunction.Forinstance,miR-181familymembersfunctioninprogressionbytargetingBcl2andCD69,amongothers.MiR-17tomiR-92clustersfunctionbybindingtoCREB1,PTEN,andBim.ConsideringthatthesuppressionofTcell-mediatedimmuneresponsesagainsttumorcellsisinvolvedincancerprogression,weshouldinvestigatethemechanismbywhichmiRNAregulatesTcellstodevelopnewapproachesforcancertreatment.

简介：目的研究E-cad在食管鳞状细胞癌中的表达及意义。方法免疫组化SABC法检测76例食管癌E-cad的表达。结果正常食管粘膜细胞膜E-cad表达呈阳性。在癌组织中，E-cad细胞膜表达减弱。E-cad减弱表达率为65．8％(50／76)，E-cad表达与病理分化程度(P=0．02)、漫润深度(P=0．024)、静脉侵犯(P=0．04)、淋巴结转移(P=0．022)和临床分期(P=0．04)具有相关性；而与年龄、性别、病理类型无关(P>0．05)。在无淋巴结转移组E-cad表达降低占56．25％(27／48)，有淋巴结转移组占82．14％(23／28)，两者之间表达差异有显著性；有静脉侵犯组E-cad表达降低率为92．86％(13／14)和无静脉侵犯组为59．68％(37／62)，两者之间差异有显著性。结论E-cad减弱表达与食管癌生物学行为有关，可能为食管癌预后差的因素之一。

简介：目的：探讨I期子宫体癌手术加放疗的疗效及放疗并发症的分析。方法：1990年10月—1999年12月收治的I期子宫体癌14例，均经术后病理证实，14例行子宫全切除＋双侧附件切除，1例加盆腔淋巴结清扫。14例均行术后放疗，TD40—65Gy。全部患者得到随访。结果：5年生存率为14／14，局控率为100％，10例在放疗过程中有轻度—中度的急性放射并发症，14例均无明显晚期放射并发症。结论：术后放疗对提高I期子宫体癌局控率及生存率可能有利。

简介：通过同位素交换反应将^131I标记到碘化油分子上，其标记率在95%以上，室温下放置15天及高压灭菌后未见有脱碘现象，r-照相显示^131I-碘化油注入狗肝动脉后，仅选择性地蓄积于注入的肝叶内，甲状腺，肺等其它部位未见核素蓄积，^131I-碘化油在肝内的有效半衰期为4.92±0.66天，每毫毛血液放射性为注入量的0.09±0.04%，提示^131I碘化油性能稳定，适宜临床应用。

简介：BackgroundSpinalpainisaserioushealthandsocial-economicproblem.Endoscopicspinesurgeryasatreatmentoptionforspinalpainhasgainedtremendousattentionandgrowthinthepast2decades,andavarietyofendoscopictechniqueshavebeeninventedtotreatawiderangeofspinalconditions.PurposesThepurposesofthis2-partreviewarticleareto1)overviewthepublishedtechniquesofendoscopicspinesurgery,2)summarizetheapplicationsofthesetechniquesintreatingvariousspinalconditions,and3)evaluatetheclinicalevidenceofthesafetyandeffectivenessoftheseendoscopictechniquesintreatingsomeofthemostcommonspinalconditions.Thefirstpartofthereviewarticleprovidesanoverviewofcurrentlymostcommonlyusedtechniques.MethodsWesearchedthePubMeddatabaseforpublicationsconcerningendoscopicspinesurgeryandreviewedtherelevantarticlespublishedintheEnglishlanguage.ResultsDiscectomyandforaminotomyarethemostcommontypesofspinesurgerythatcancurrentlybedoneendoscopically.Endoscopictechniqueshavebeenusedtotreatawiderangeofspinaldisorderslocatedinthelumbar,cervical,aswellasthethoracicregionsofthespine.

简介：背景γδT细胞与免疫调节进程相关。然而，γδT细胞在胃癌病程中的特点目前尚无考据。本研究评价了胃癌患者外周血中γδT细胞和淋巴细胞亚群的产生情况。方法研究入组了48例患者，另设置49位健康受试者作为对照。采用流式细胞术分析γδT细胞和淋巴细胞亚群。

简介：研究人员最新在报告近68000人参加的大剂量维生素E对预防心血管病和癌症的危险的结果.人们可能听说过,维生素E是纯天然的抗氧化剂,服用维生素E是预防癌症和心脏病的有效方法.人们对它寄予很大希望,但研究证明这是个不切实际的希望.

简介：

简介：N^6-methyladenosine(m^6A)isanessentialRNAmodificationthatregulateskeycellularprocesses,includingstemcellrenewal,cellulardifferentiation,andresponsetoDNAdamage.Unsurprisingly,aberrantm6Amethylationhasbeenimplicatedinthedevelopmentandmaintenanceofdiversehumancancers.Alteredm6AlevelsaffectRNAprocessing,mRNAdegradation,andtranslationofmRNAsintoproteins,therebydisruptinggeneexpressionregulationandpromotingtumorigenesis.Recentstudieshavereportedthattheabnormalexpressionofm6Aregulatoryenzymesaffectsm6Aabundanceandconsequentlydysregulatestheexpressionoftumorsuppressorgenesandoncogenes,includingMYC,SOCS2,ADAM19,andPTEN.Inthisreview,wediscussthespecificrolesofm6A“writers",“erasers”,and“readers”innormalphysiologyandhowtheiralteredexpressionpromotestumorigenesis.Wealsodescribethepotentialofexploitingtheaberrantexpressionoftheseenzymesforcancerdiagnosis,prognosis,andthedevelopmentofnoveltherapies.

简介：Glioblastoma(GBM)isoneofthedeadliesttumorsandhasamediansurvivalof3monthsifleftuntreated.Despiteadvancesinrationallytargetedpharmacologicalapproaches,theclinicalcareofGBMremainspalliativeinintent.Sincethemajorityofalteredsignalingcascadesinvolvedincancerestablishmentandprogressioneventuallyaffectcellcycleprogression,analternativeapproachforcancertherapyistodevelopinnovativecompoundsthatblocktheactivityofcrucialmoleculesneededbytumorcellstocompletecelldivision.Inthiscontext,wereviewpromisingongoingandfuturestrategiesforGBMtherapeuticsaimedtowardsG2/Minhibitionsuchasanti-microtubuleagentsandtargetedtherapyagainstG2/Mregulatorslikecyclin-dependentkinases,Aurorainhibitors,PLK1,BUB,1,andBUBR1,andsurvivin.Moreover,wealsoincludeinvestigationalagentsinthepreclinicalandearlyclinicalsettings.Althoughseveraldrugswereshowntobegliotoxic,mostofthemhavenotyetenteredtherapeutictrials.TheuseofeithersingleexposureoracombinationwithnovelcompoundsmayleadtotreatmentalternativesforGBMpatientsinthenearfuture.

简介：Gastrointestinal(GI)cancerisoneofthemostcommoncausesofcancer-relateddeathsworldwide.Tumormarkersarevaluableindetectingpost-surgicalrecurrenceorinmonitoringresponsetochemotherapy.PyruvatekinaseisoformM2(PKM2),aglycolyticenzymecatalyzingconversionofphosphoenolpyruvate(PEP)topyruvate,confersagrowthadvantagetothetumorcellsandenablesthemtoadapttothetumormicroenvironment.Inthisreview,wehavesummarizedcurrentresearchontheexpressionandregulationofPKM2intumorcells,anditspotentialroleinGIcarcinogenesisandprogression.Furthermore,wehavealsodiscussedthepotentialofPKM2asadiagnosticandscreeningmarker,andatherapeutictargetinGIcancer.

简介：免疫系统是机体执行免疫监视、防御、调控功能的重要系统,其中T细胞是抗肿瘤免疫的主要效应细胞。目前,各种肿瘤免疫疗法相继应用于临床,标志着肿瘤免疫治疗进入了新时代。本文将对目前正在进行的T细胞免疫治疗的相关进展进行综述。

简介：目的检查annexinⅠ在食管癌前病变到食管鳞癌不同病变过程中的表达。方法按照研究食管癌早期病变的病理学取材方法取材,选择含有不同程度癌前病变的食管鳞癌标本11例,经连续取材制片和免疫组化分析,比较同一病例由食管癌前病变发展到食管鳞癌的全过程中annexinⅠ的表达改变。结果AnnexinⅠ表达水平在食管正常鳞状上皮中呈强阳性(11/11,100％),低度癌前病变(轻度不典型增生和中度不典型增生)减弱(3/8,37.5％),高度癌前病变(重度不典型增生和原位癌)明显减弱(12/14,85.7/％),食管浸润癌和淋巴结转移癌中阴性或显著减弱(15/15和3/3,100％)。Annex.inⅠ在食管低度癌前病变中的改变具有显著意义(P=0.002)。结论AnnexinⅠ是食管鳞癌早期侯选标志蛋白,在食管低度癌前病变时表达异常。

简介：结外NK／T细胞淋巴瘤，鼻型，是近年来逐渐被认识的非霍奇金淋巴瘤的一个亚型。由于其细胞形态的多样性以及肿瘤细胞的嗜血管性，且常伴有血管的破坏与坏死，历来命名较为混乱。其中有Kiel分型的多形T细胞淋巴瘤，小、中、大细胞型，REAL分型的血管中心T细胞淋巴瘤，以及其他如恶性中线网状细胞增生症、致死性中线肉芽肿、多型性网状细胞增生症等。1997年Jaff等在WHO淋巴瘤分型草案中提出一种新的非霍奇金淋巴瘤亚型，具有同时表达T细胞抗原（CD3）和NK细胞抗原（CD56）的特征。