PartialMolecularPathogenesisin

BladderCarcinoma夏陽(yáng)陽(yáng)2016-7-13contentEpidemicsGradeandstageClassificationbasedongeneticcharactericsSomepathwaysAristolochicAcid(AA)LindseyA.Torre,MSPH;FreddieBray,PhD,etal.Globalcancerstatistics,2012.CACANCERJCLIN2015;65:87–108EstimatednewcasesEstimateddeath74769BladderCarcinomaTransitionalcellcarcinomaNon-TransitionalcellcarcinomaAdeno-carcinomaSquamousCellcarcinomamesenchymalmetastasesInflatratingtumorsOfadjacentorgansSTAGEPrimaryTumorT0NoevidenceoftumorTaNoninvasivepapillaryurothelialcarcinomaTisUrothelialcarcinomainsituT1TumorinvadeslaminapropriaT2Tumorinvadessuperficial(2a,innerhalf)ordeep(2b,outerhalf)muscularispropriaT3Tumorinvadesmicroscopically(3a)ormacroscopically(3b)perivesicaltissueT4Tumorinvadesadjacentorgans(4a,prostaticstroma,seminalvesicles,uterus,vagina)orpelvicorabdominalwall(4b)RegionalLymphNodesN0NolymphnodemetastasisN1SinglelymphnodemetastasisinthetruepelvisN2MultiplelymphnodemetastasesinthetruepelvisN3LymphnodemetastasistothecommoniliaclymphnodesDistantMetastasisM0NodistantmetastasisM1DistantmetastasisStageGroupingsStage0TaN0M0orTisN0M0StageIT1N0M0StageIIT2N0M0StageIIIT3N0M0orT4aN0M0StageIVT4bN0M0AnyT,N1-3,AnyMAnyT,AnyN,M1EdgeSB,ByrdDR,ComptonCC,FritzAG,GreeneFL,TrottiA.Urinarybladder.In:EdgeSB,ByrdDR,ComptonCC,FritzAG,GreeneFL,TrottiA,eds.AJCCCancerStagingManual.7thed.NewYork,NY:Springer;2010:497–505.non-muscleinvasivebladdercancer(NMIBC)muscleinvasivebladdercancer(MIBC)TaTisT1T2T3T4GRADE1973cellularanaplasia2004architecturalandcytologicalatypiaPUNLMP=papillaryurothelialneoplasmoflowmalignantpotentialAshishMKamat,NoahMHahn,JasonAEfstathiouetal.Bladdercancer，2016.lancetS0140-6736(16)30512-8

.ClassificationBasedonGeneticCharacteristicspapillaryNon-papillaryColinP.N.Dinney,DinneyCP,McConkeyDJ,MillikanRE,etal.Focusonbladdercancer.CancerCell2004;6:111–1660%:alterationninvolvesexons5–11ofp53andthelossofRBgenefunction

20%:synchronouslossofthetandemlylinkedCDKN2aandARF

20%:alterationsofp53inexons1–4followedbylossofCDKN2aandARFfunctionpapillaryActivationofFGFR3Chromatin-modifyingenzymeNon-papillaryInactivationofTP53andRBChromatin-modifyingenzymeHistoneacetyltransferaseshistonemethyltransferasesactivatingtelomerasepromotermutationsinactivatingSTAG2mutations

1.GuiY,GuoG,HuangY,etal.Frequentmutationsofchromatinremodelinggenesintransitionalcellcarcinomaofthebladder.NatGenet2011;43:875–78.462.AlloryY,BeukersW,SagreraA,etal.Telomerasereversetranscriptasepromotermutationsinbladdercancer:highfrequencyacrossstages,detectioninurine,andlackofassociationwithoutcome.EurUrol2014;65:360–66.443.Balbás-MartínezC,SagreraA,Carrillo-de-Santa-PauE,etal.RecurrentinactivationofSTAG2inbladdercancerisnotassociatedwithaneuploidy.NatGenet2013;45:1464–69.Basal-likeandLuminalBasalMIBCssharedbiomarkerswithbasalbreastcancersandwerecharacterizedbyp53activation,squamousdifferentiation,andmoreaggressivediseaseatpresentation.LuminalMIBCscontainedfeaturesofactivePPARγandestrogenreceptor(ER)transcriptionandwereenrichedwithactivatingFGFR3mutationsandpotentiallyFGFRinhibitorsensitivity.a:Papillaryhistology,FGFR3alterations,FGFR3expressionandreducedFGFR3-relatedmiRNAexpressionareenrichedinclusterI.b:Expressionofepitheliallineagegenesandstem/progenitorcytokeratinsaregenerallyhighinclusterIII,someofwhichexpressvariantsquamoushistology.c:LuminalbreastandurothelialdifferentiationfactorsareenrichedinclustersIandII.d:ERBB2mutationandestrogenreceptorbeta(ESR2)expressionareenrichedinclustersIandII.CancerGenomeAtlasResearchNetwork.Comprehensivemolecularcharacterizationofurothelialbladdercarcinoma.Nature2014;507:315–22CancerGenomeAtlasResearchNetwork.Comprehensivemolecularcharacterizationofurothelialbladdercarcinoma.Nature2014;507:315–221.BarskiA,CuddapahS,CuiK,RohTY,SchonesDE,WangZ,WeiG,ChepelevI,ZhaoK(May2007)."High-resolutionprofilingofhistonemethylationsinthehumangenome".Cell129(4):823–37.doi:10.1016/j.cell.2007.05.009.PMID17512414.

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17567990.ChromosomalAlterationsThemostfrequentobservedcopynumberaberrationsinUCareonchromosomes1,8,9,10,11,13,and14.Chromosome9alterationsaretheearliestgeneticalterationsinbothofthedescribeddivergentpathwaysofBCdevelopment[1]1.MingZhao,Xiang-LeiHe,Xiao-DongTeng,Understandingthemolecularpathogenesisandprognosticsofbladdercancer:anoverviewStructuralrearrangementsandviralintegrationTheCancerGenomeAtlasResearchNetwork,ComprehensiveMolecularCharacterizationofUrothelialBladderCarcinomaSomeexamplesforchromosomalalterrationsummaryThepathogenesisofbladdercancerisacomplicatedcourse,withmanygenesandchromosomesinvolved.Themostfrequentlyalteredpathwaysinbladdercancerinclude:thePI3K/AKT/mammalianpathwaytheFGFR3/RAF/RASpathwaytheTP53/RB1pathwayInaddition,TERTmutationsarepresentinupto79%ofbladderneoplasms,butnorelationwithprognosis.AristolochicAcid(AA):acarcinogenforUTUCOverview:Aristolochicacid(AA)isanitrophenanthrenecarboxylicacidfoundinallmembersofthegenusAristolochiausedformedicalpurposesformorethan2000yearsnephrotoxicityandcarcinogenicityassociatedwiththeuseoftheseplantscametolightwhenAristolochiafangchi,administeredto1800healthyBelgianwomenaspartofaweightreductionregimen,resultedinmorethan100casesofchronictubulointerstitialdiseaseprogressingtoend-stagerenalfailure.ManyoftheaffectedwomendevelopedneoplasticchangesintheupperurinarytractAristolochicAcid,implicatedasanenvironmentalcarcinogenBalkanendemicnephropathy(BEN),adevastatingkidneydiseaseassociatedwithurothelialcarcinomaoftheupperurinarytract.AAwasshowntobethecausativeagentofthisdiseaseInthesestudies,AL-DNAaddu