学科分类
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120 个结果
  • 简介:AIMTocompareKAI1incancerofpapillaofVaterandpancreastoevaluatewhethertherearedifferencesinbiologicbehaviorwhichmightaccountforprognosis.METHODSWecomparedtheexpressionin24papillayand29pancreaticcancersusingNorthernblotanalysis,immunochemicalassayandinsituhybridization,andinvestigatedwhetherearlydiagnosisormoleculardifferencespredicttheoutcomeinthesetumorentities.RESULTSByNorthernblotanalysisthereisnostatisticaldifferenceofKAI1levelsinnormalandcancerouspapilla.NoassociationbetweenKAI1mRNAexpressionandtumorstageortumordifferentiationwasfoundinthetumors.Byimmunohistochemicalassay,KAI1stainingincytoplasmofpapillarycancercellswassimilartothatofnormalpapillarycells.Byinsituhybridization,theresultsofKAI1mRNAexpressioninnormalandcancerouspapillaweresimilartothosewithimmunohistochemicalassay.Thenormalandcancerouspancreastissueswerealsoanalyzedbythemethodsusedinpapillarysamples.CONCLUSIONAlthoughthebiologicrolesofKAI1havenotbeenclarified,ourresultssuggestthatKAI1mayrestricttheprogressionofmalignantpapillarycancer,butitsexpressionmightnothaveanyeffectonthecharacteristicsofpapillarytumor,whereasbytheanalysisofKAl1gene,itsreducedexpressioniscloselyrelatedtotheprogressionandmetastasesofpancreaticcancer.

  • 标签: pancreatic NEOPLASMS PAPILLARY NEOPLASMS KAI1 gene
  • 简介:Cancerscreeningisasourceofmuchdebate.Attheinterfacebetweenpublichealth,specialistcare,economicsandpolicy,itcreatestensionsbetweenprofessionalgroups,politicians,themediaandthepublic.Ascreeningtestmaybecheap,butapplyingittoapopulation(withrigorousqualitycontrolandeffectiveprocessingofpatientswithabnormalresults)createsahugeworkloadandthereforecost.Screeningcanalsohavepsychologicaleffectsonindividualswithfalse-positiveresultswhorequireinvestigationbutareeventuallyfoundnottohavecancer.

  • 标签: 癌症 筛查方式 个体差异 病理学研究
  • 简介:Ithabeenknownforsometimethatsometumourshavetheabilitytoproducaehormones.Thishastraditionallybeentermed‘ectopic'hormoneproduction,butwiththeincreasingsensitivityofmodenmoleculartechniques,ithasbecomeclearthatthisisamisnomer;manytissuescanproducehormoner,andnormallydosoatlowlevels,thehormonesactinglocallyascytokinesinaparacrinemanner.Intumours,bymechanismsthatremainunclear,productionofthesehormonesand/orincompletelyprocessedprecursorsisinereased,andthetem‘eutopic’productionismoreappropriate.

  • 标签: 内分泌综合症 “异位”激素产生 高钙血症 甲状旁腺素 抗利尿激素分泌异常综合症
  • 简介:Inthepastdecade,anincreasedamountofclinically-orientedresearchinvolvingimmunotoxinshasbeenpublished.Immunotoxinsareagroupofartificially-madecytotoxicmoleculestargetingcancercells.Thesemoleculescomposedofatargetingmoiety,suchasaligandoranantibody,linkedtotoxinmoiety,whichisatoxinwitheithertruncatedordeletedcell-bindingdomainthatpreventsitfrombindingtonormalcells.Immunotoxinscanbedividedintotwocategories:chemicallyconjugatedimmunotoxinsandrecombinantones.Theimmunotoxinsofthefirstcategoryhaveshownlimitedefficacyinclinicaltrialsinpatientswithhematologicmalignanciesandsolidtumors.Withinthelastfewyears,single-chainimmunotoxinsprovideenhancedtherapeuticefficacyoverconjugatedformsandresultinimprovedantitumoractivity.Inthisreview,webrieflyillustratethedesignoftheimmunotoxinsandtheirapplicationsinclinicaltrials.Cellular&MolecularImmunology.2005;2(2):106-112.

  • 标签: 免疫毒素 肿瘤 治疗方法 配合基 抗体
  • 简介:DuckhepatitisBvims(DHBV)DNAwasdetectedindifferenttumorousnodulesofduckswithhepaticmulticentriccancerorintrahepaticmetastasisbySouthernblottechnique.Among7duckswithhepatocellularcarcinomaofmultipletumornodules,thehybridizationpatternofIntegratedDHBVDNAIndifferenttumorousnoduleswasidenticalin3casesanddifferentin2cases.OnecaseshowedasimilarhybridizationpatternintwotumorousnodulesandotheronewasnegativetorDHBVDNA.IntegratedDHBVDNAwasalsoidentifiedinametastaticlungcancerofduckswithhepatocellularcarcinoma.Thehybridizationpatternofmetastasisoflungswasasthesomeasthatinprimaryhepatocellularcarcinoma.ThesamediscretehybridizationbandsInthedifferenttumorousnodulesindicatethatthesenodulesmightarisefromonetransformedcell.ThedifferenthybridizationpatternsInvarioustumorousnodulesshowthatthesetumorousnodulesmightarisefromvarioustransformedcells.Theresultssuggestthatthehyb

  • 标签: NODULES DNA DHBV transformed lungs metastasis
  • 简介:摘要:在中介或先进的胰腺的头癌上改进辩解的效果。方法:手术与intermediated或先进的胰腺的头癌在26个病人被动。在癌上与一根电子横梁与intraoperative放射疗法相结合的Cholecystojejunostomy或choledochojejunostomy从1996年5月被执行到1998年5月。同时,多功能的可植入的药交货系统的导管为手术后的灌注化疗经由胃与十二指肠的动脉被插入。结果:327月后续调查建议肿瘤在治疗的功课以后在不同的度缩小了。所有病人疼痛被减轻。6月、12月、24月的幸存率是100%,93.9%和20%分别地。5个死了的病人的平均幸存时间是17.8个月。结论:这操作是很完成与中介或先进的胰腺的头癌延长病人的生活。

  • 标签: PANCREATIC CARCINOMA RADIOTHERAPY Operation PERFUSION CHEMOTHERAPY
  • 简介:Tumorgrowthandmetastasisareangiogenesis-dependent.Anti-angiogenictherapymaybeausefulapproachtocancertherapy.Thisreviewdiscussedtumorangiogenesisandimmunotherapyoftargetingtumorangiogenesisfromtwomainaspects:(1)activevaccinationtoinduceeffectiveanti-angiogenesisimmunity;(2)passiveimmunotherapywithanti-pro-angiogenicmoleculesrelevantantibody.Evidencefromtherecentyearssuggestedthatanti-angiogenictherapyshouldbeoneofthemostpromisingapproachestocancertherapy.

  • 标签: 肿瘤 免疫疗法 血管生成 治疗方法
  • 简介:Wehavereviewedthegenetherapyingastrointestinaldiseases^[1].GastriccanceriscommoninChina^(2-20),anditsearlydiagnosisandtreatmentarestilldifficultuptonow^(13-36).Theex-pressionofanexogenousgeneintroducedbygenetherapyintopa-tientswithgliomascanbemonitorednon-invasivelybypositron-emissiontornography^[4].

  • 标签: 胃癌 胃肠疾病 肿瘤 治疗方法 氮化酶
  • 简介:Nitricoxide(NO)isapleiotropicregulator,criticaltonumerousbiologicalprocesses,includingva-sodilatation,neurotransmissionandmacrophage-mediatedimmunity.Thefamilyofnitricoxidesynthases(NOS)comprisesinducibleNOS(iNOS),endothelialNOS(eNOS),andneuronalNOS(nNOS).Interest-ingly,variousstudieshaveshownthatallthreeisoformscanbeinvolvedinpromotingorinhibitingtheetiologyofcancer.NOSactivityhasbeendetectedintumourcellsofvarioushistogeneticoriginsandhasbeenassociatedwithtumourgrade,proliferationrateandexpressionofimportantsignalingcomponentsassociatedwithcancerdevelopmentsuchastheoestrogenreceptor.ItappearsthathighlevelsofNOSexpression(forexample,generatedbyactivatedmacrophages)maybecytostaticorcytotoxicfortumorcells,whereaslowlevelactivitycanhavetheoppositeeffectandpromotetumourgrowth.Paradoxicallytherefore,NO(andrelatedreactivenitrogenspecies)mayhavebothgenotoxicandangiogenicproperties.IncreasedNO-generationinacellmayselectmutantp53cellsandcontributetotumourangiogenesisbyupregulatingVEGF.Inaddition,NOmaymodulatetumourDNArepairmechanismsbyupregulatingp53,poly(ADP-ribose)polymerase(PARP)andtheDNA-dependentproteinkinase(DNA-PK).Anunderstand-ingatthemolecularleveloftheroleofNOincancerwillhaveprofoundtherapeuticimplicationsforthediagnosisandtreatmentofdisease.

  • 标签: 癌症 一氧化碳 合成酶 表达程度 受体
  • 简介:Acupuncture,asacomplementarytherapy,hasbeenusedtomanagethecancerassociatedsymptomsofcancerpatients.Toidentifytheefficacyandsafetyofacupunctureinthemanagementofcancer,thisreviewcriticallyanalysestherelevantpublicationsincludingbothexperimentalandclinicalstudies.Themajorityofstudiessuggestthatacupunctureeffectivelyrelievessomecancerrelatedsymptomssuchascancerpain,andsomeadverseeffectscausedbythecancerconventionaltreatmentssuchasnausea,vomiting,neutropeniaandxerostomia.

  • 标签: 肿瘤 中医治疗 针刺治疗 嗜中性白血球减少症 口腔干燥
  • 简介:Duetoconcernsregardingtheoverlappingfiguresinthisreviewthatareidenticaltothosecontainedinareviewarticlethatwehaveco-authoredandpublishedearlier,weretracttheabovepaperwepublishedinCellResearch.Weapologizeforanyconfusionthatmaybecausedbythismatter,althoughwestandbythescientificcontentscontainedintheCellResearchpaper.

  • 标签: 肿瘤 基因治疗 病理机制 临床
  • 简介:ChineseJournalofCancerResearch,aninternationalbiomedicaljournaleditedandpublishedquarterlyinEnglishbyChinaAnti-CancerAssociation(CACA),isacomprehensiveacademicjournal,aimingtoreflectprimarilythecreativeorinnovativeachievementsinallfieldsofcancerresea...

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  • 简介:OurpreviousstudyshowedthattwoMKN45variants,namelyMKN45Lm-andMKN45Lm+selectedbylamininadhesioninvitro,haddifferentabilitiesofinvasionandmetastasisinvivo(inoculatedinnudemice)andinvitro(inBoydenchamber),alsohaddifferentexpressionofcysteineproteinase.Inthepresentstudy,weinvestigatedthecellapoptosisofthisMKN45variantsbyTUNELandFACSmethods.Theresultswereshownsignificantdifferentofcellapoptosisinthiscellsublines.TheMKN45Lm-cellshadasmallsubdiploidypeak(3.5%)inDNAcontentanalyzedbyflowcytometry,

  • 标签: 细胞凋亡 细胞转移 胃癌 肿瘤 消化系统
  • 简介:MeSHpancreaticoduodenectomy;pancreaticanastomoticleak;fistulaofpancreas;periampullarycarcinoma;jaundicecomplicationcarcinomaofpancreas;ABSTRACYObjectTopreventpancreaticanastomoticleakbythecomprehensiveleakproofmeasuresforpancre-aticoduodenectomy.MethodsFromDecember1981toJune2002,128consecutivepatientsunderwentpancreati-coduodenectomy.127casessufferedfromthemalignantdiseaseandonefromchronicpancreatitis.Theauthorperformedtheoperationsandadoptedthecomprehensivemeasurestopreventpancreaticanastomoticleak.Themeasuresweremainly

  • 标签: 胰腺瘘 防漏措施 胰腺外科 胰腺疾病 胰腺吻合口漏