简介:Pancreaticcysticlesions(PCLs)areincreasinglybeingidentifiedbecauseofthewidespreaduseofhighresolutionabdominalimaging.Thesecystsencompassaspectrumfrommalignantdiseasetobenignlesions,andtherefore,accuratediagnosisiscrucialtodeterminethebestmanagementstrategy,eithersurgicalresectionorsurveillance.However,thecurrentstandardofdiagnosisisnotaccurateenoughduetolimitationsofimagingandtissuesamplingtechniques,whichentailtheriskofunnecessaryburdensomesurgeryforbenignlesionsormissedopportunitiesofprophylacticsurgeryforpotentiallymalignantPCLs.Inthelastdecade,endoscopicinnovationsbasedonendoscopicultrasonography(EUS)imaginghaveemerged,aimingtoovercomethepresentlimitations.ThesenewEUS-basedtechnologiesarecontrastharmonicEUS,needle-basedconfocalendomicroscopy,through-the-needlecystoscopyandthrough-theneedleintracysticbiopsy.Here,wepresentacomprehensiveandcriticalreviewoftheseemergingendoscopictoolsforthediagnosisofPCLs,withaspecialemphasisonfeasibility,safetyanddiagnosticperformance.
简介:Amolecularmodelofpancreaticzymogengranule(ZG)iscriticalforunderstandingitsfunctions.WehaveextensivelycharacterizedthecompositionandmembranetopologyofratZGproteins.Inthisstudy,wereportthedevelopmentoftargetedproteomicsapproachestoquantifyrepresentativemouseandhumanZGproteinsusingLC-SRMandheavyisotope-labeledsyntheticpeptides.TheabsolutequantitiesofmouseRab3DandVAMP8weredeterminedas1242±218and2039±151(mean±SEM)copiesperZG.ThesizedistributionandtheaverageddiameterofZGs750±23nm(mean±SEM)weredeterminedbyatomicforcemicroscopy.TheabsolutequantificationofRab3Dwasthenvalidatedusingsemi-quantitativeWesternblottingwithpurifiedGST-Rab3Dproteinsasaninternalstandard.Toextendourproteomicsanalysistohumanpancreas,ZGswerepurifiedusinghumanaciniobtainedfrompancreaticislettrans-plantationcenter.OnehundredandeightyhumanZGproteinswereidentifiedforthefirsttimeincludingboththemembraneandthecontentproteins.Furthermore,thecopynumberperZGofhumanRab3DandVAMP8weredeterminedtobe1182±45and485±15(mean±SEM).ThecomprehensiveproteomicanalysesofmouseandhumanpancreaticZGshavethepotentialtoidentifyspecies-specificZGproteins.ThedeterminationofproteincopynumbersonpancreaticZGsrepresentsasignificantadvancetowardsbuildingaquantitativemolecularmodelofaprototypicalsecretoryvesicleusingtargetedproteomicsapproaches.TheidentificationofhumanZGproteinslaysafoundationforsubsequentstudiesofalteredZGcompositionsandsecretioninpancreaticdiseases.
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简介:Objective:Toinvestigatetherelationshipbetweengenemutationandpathologicaltypeoflungcancer,inspectandverifytheconsistencybetweenhomologousgenesmutationinvariouspathologictype.Methods:CombinedwiththeCOSMICandUniProtdatabase,weobtainedthereportedoverallbig-samplemutationdataoflungcancerandtheproteinsequencesofthetop20mutatedgenes,respectively.Analyzethedataandclustertheproteinsequencesandthendeducethehomologousgene.Ultimately,analyzethemutationsofdifferentpathologicaltypesofhomologousgenes.Results:TP53(32.32%)hasthehighestmutationrateinlungcancer,followedbyEGFR(29.12%).Thecopynumbervariability(CNV)ofgenes:KRAS,LRP1B,CDKN2A,KMT2C,FAT1,PIK3CA,RB1,ERBB4,GRIN2AandKDRbetweeneachpathologicaltypeisstaticallysignificant(P<0.05).ThegenedifferentialexpressionratebetweenadenocarcinomaandsquamouscarcinomaofgeneTP53,KRAS,LRP1B,CDKN2A,STK11,FAT4,KMT2D,NFE2L2,KEAP1,PIK3CA,RB1,ERBB4,SMARCA4andKDRarestatisticallysignificant(P<0.05).ThesimilarityoftheproteinsequenceofEGFRandERBB4canreach93%,andFAT4andFAT1are81%.Forsmallcellcarcinoma,there’snodifferenceinCNVbetweenthetwogroupsofhomologousgenes,andnodifferencebetweenFAT4andFAT1inadenocarcinoma.Conclusion:TheCNVandgeneexpressionoflungcancer-associatedgenesarerelevanttopathologictypes.GFRandERBB4arehomologous,FAT4andFAT1arealsoamongthetop20mutationgenes.Additionally,there’snodifferenceinCNVbetweenthetwogroupsofsmallcellcarcinoma,whichisthesamebetweenFAT4andFAT1inadenocarcinoma.
简介:Objective:ToanalyzetheincidenceandmortalityratesoflungcancerinChinafrom2008to2012.Methods:IncidentanddeathcasesoflungcancerwereretrievedfromtheNationalCentralCancerRegistry(NCCR)databasecollectingfrom135cancerregistriesinChinaduring2008-2012.Thecrudeincidenceandmortalityratesoflungcancerwerecalculatedbyarea(urban/rural),region(eastern,middle,western),genderandagegroup(0,1-4,5-9,…,85+).Chinacensusin2000andSegi’sworldpopulationwereappliedforagestandardizedrates.JoinPoint(Version4.5.0.1)modelwasusedfortimetrendanalysis.Results:Thecrudeincidencerateoflungcancerwas54.66/100,000whichrankedthefirstinoverallcancers.Theage-standardizedincidenceratesbyChinapopulation(ASIRC)andbyWorldpopulation(ASIRW)were35.13/100,000and34.86/100,000,respectively.ThecrudemortalityoflungcancerinChinawas45.60/100,000anditwasthefirstcauseofcancer-relateddeathinoverallcancers.Theage-standardizedmortalityratesbyChinesestandardpopulation(ASMRC)andbyworldstandardpopulation(ASMRW)were28.57/100,000and28.22/100,000,respectively.Incidenceandmortalityratesoflungcancerwerehigherinmalesthaninfemalesandhigherinurbanareasthaninruralareas.Easternareashadthehighestincidenceandmortalityratesfollowedbymiddleandwesternareas.Incidenceandmortalityratesoflungcancerretainedlowlevelinagegroupsbefore40yearsoldbutincreasedgreatlyafterandpeakedinagegroupof80-84.During2003-2012,thetemporaltrendoftheincidencerateoflungcancerinbothsexesinChinawasgeneralstable(P<0.05).Thelungcancerincidencerateincreasedby0.71%peryearinfemales(P<0.05)and2.26%peryearinruralareas(P<0.05).Themortalityrateoflungcancerdecreasedslightlyannuallyduring2003-2012inChina(P>0.05).Inurbanareas,itdeclinedby0.76%peryear(P<0.05),butroseby2.09%peryear(P<0.05)inruralareas.Conclusions:Appropriatetargetedprevention,earlydetectionandtreatment
简介:Objective:LivercancerisoneofthemostcommoncancersandmajorcauseofcancerdeathsinChina,whichaccountsforover50%ofnewcasesanddeathsworldwide.Thesystematiclivercancerstatisticsincludingofprojectionthrough2030couldprovidevaluableinformationforpreventionandcontrolstrategiesinChina,andexperienceforothercountries.Methods:TheburdenoflivercancerinChinain2014wasestimatedusing339cancerregistries’dataselectedfromChineseNationalCancerCenter(NCC).Incidentcasesof22cancerregistrieswereappliedfortemporaltrendsfrom2000to2014.Theburdenoflivercancerthrough2030wasprojectedusingage-period-cohortmodel.Results:About364,800newcasesoflivercancer(268,900malesand95,900females)occurredinChina,andabout318,800livercancerdeaths(233,500malesand85,300females)in2014.WesternregionsofChinahadthehighestincidenceandmortalityrates.Incidenceandmortalityratesdecreasedbyabout2.3%and2.6%peryearduringtheperiodof2000-2014,respectively,andwoulddecreasebymorethan44%between2014and2030inChina.Theyounggeneration,particularlyforthoseagedunder40years,showedafasterdowntrend.Conclusions:Basedontheanalysis,incidenceandmortalityratesoflivercancerareexpectedtodecreasethrough2030,buttheburdenoflivercancerisstillseriousinChina,especiallyinruralandwesternareas.MostcasesoflivercancerinChinacanbepreventedthroughvaccinationandmorepreventioneffortsshouldbefocusedonhighriskgroups.
简介:肿瘤坏死因素相关的导致apoptosisligand(小道)是为anticancer的一个有希望的代理人治疗。能建立前列腺癌症(PCa)的敏感的小分子的鉴定房间到导致小道的apoptosis为PCa的指向的治疗是关键的。PC3,DU145,JAC-1,TsuPr1,和LNCaP房间与Andrographolide(Andro)被对待,小道,和apoptosis用AnnexinV/PI被测量两倍染色的方法。真实时间聚合酶链反应(PCR)和西方的污点分析被执行测量目标分子的表示层次。RNA干扰技术习惯于下面调整目标蛋白质的表示。我们建立了PCa的一个裸体老鼠异种皮移植模特儿,它被用来用流动cytometry在肿瘤房间测量caspase-3活动。在这研究研究,我们的结果证明Andro优先地在subtoxic集中增加了PCa房间的敏感到导致小道的apoptosis,并且规定机制与DR4的起来规定有关。另外,它也增加了p53表示并且在细胞导致了反应的氧种类(ROS)的产生。进一步的研究表明DR4抑制,p53表示,和ROS产生罐头显著地减少小道和Andro的联合在PCa房间导致的apoptosis。在结论,Andro通过ROS的产生和p53的起来规定增加PCa房间的敏感到导致小道的apoptosis然后支持与DR4的激活联系的PCa房间apoptosis。