简介：Dearcolleague,Astheeditor-in-chief,IwouldliketodeclarethegoodnewsthatCancerBiology&Medicine(CBM)hasbeenindexedinScienceCitationIndexExpanded(SCIE)andwillgetanimpactfactorsoon.AstheofficialjournaloftheChineseAnti-CancerAssociation(CACA)whichpossessesmorethan40,000members,CBMholdsalargeaudiencebothinChinaandabroad.Thejournalmainlyfocusesontranslationalcancerresearch,dedicatingtonarrowing

简介：Lynch综合征（Lynchsyndrome）又称遗传性非息肉性结直肠癌综合征,是由DNA错配修复（MMR）基因突变引起的一组常染色体显性遗传病。Lynch综合征患者常患有多种原发性肿瘤,女性患者中子宫内膜癌与之最为密切,称为Lynch综合征相关性子宫内膜癌。目前,对Lynch综合征相关性子宫内膜癌无大样本的数据研究,对其筛查及随访缺乏统一策略。为提高对该病的认识与重视,作者对Lynch综合征相关性子宫内膜癌发病机制、临床病理特点、诊断方法、治疗要点及筛查策略等研究进展进行概述。

简介：Objective:Chroniclymphocyticleukemia(CLL)andmantlecelllymphoma(MCL)cellsover-expressaguanineexchangefactor(GEF),Rasgrf-1.ThisGEFincreasesactiveRasasitcatalyzestheremovalofGDPfromRassothatGTPcanbindandactivateRas.ThisstudyaimstostudythemechanismofactionofRasgrf-1inB-cellmalignancies.Methods:N-terminustruncatedRasgrf-1variantshaveahigherGEFactivityascomparedtothefull-lengthtranscriptthereforeaMCLcelllinewithstableover-expressionoftruncatedRasgrf-1wasestablished.TheB-cellreceptor(BCR)andchemokinesignalingpathwayswerecomparedintheRasgrf-1over-expressingandacontroltransfectedcellline.Results:Cellsover-expressingtruncatedformofRasgrf-1haveahigherproliferativerateascomparedtocontroltransfectedcells.BCRwasactivatedbylowerconcentrationsofanti-IgMantibodyinRasgrf-1over-expressingcellsascomparedtocontrolcellsindicatingthatthesecellsaremoresensitivetoBCRsignaling.BCRsignalingalsophosphorylatesRasgrf-1thatfurtherincreasesitsGEFfunctionandamplifiesBCRsignaling.ThisactivationofRasgrf-1inover-expressingcellsresultedinahigherexpressionofphospho-ERK,AKT,BTKandPKC-alphaascomparedtocontrolcells.BesidesBCR,Rasgrf-1over-expressingcellswerealsomoresensitivetomicroenvironmentstimuliasdeterminedbyresistancetoapoptosis,chemotaxisandERKpathwayactivation.Conclusions:ThisGEFproteinsensitizesB-cellstoBCRandchemokinemediatedsignalingandalsoupregulatesanumberofothersignalingpathwayswhichpromotesgrowthandsurvivalofthesecells.

简介：ThechronicinfectionofhepatitisBvirus(HBV)iscloselyrelatedtotheoccurrenceanddevelopmentofhepatocellularcarcinoma(HCC).AccumulatedevidencehasshownthatHBVXprotein(HBxprotein)isamultifunctionalregulatorwithacrucialroleinhepatocarcinogenesis.However,informationonthemechanismbywhichHBVinducesHCCislacking.ThisreviewfocusesonthepathologicalfunctionsofHBxinHBV-inducedhepatocarcinogenesis.Asatransactivator,HBxcanmodulatenuclearfactorkappa-light-chain-enhancerofactivatedBcells(NF-κB)andtranscriptionfactorAP-2.Moreover,HBxcanaffectregulatorynon-codingRNAs(ncRNAs)includingmicroRNAsandlongncRNAs(lncRNAs),suchasmiRNA-205andhighlyupregulatedinlivercancer(HULC),respectively.HBxisalsoinvolvedinepigeneticmodification,includingmethylationandacetylation.HBxinteractswithvarioussignal-transductionpathways,suchasproteinkinaseB/Akt,Wnt/β-catenin,signaltransducerandactivatoroftranscription,andNF-κBpathways.Moreover,HBxaffectscellularfatebyshiftingthebalancetowardcellsurvival.HBxmayleadtothelossofapoptoticfunctionsordirectlycontributestooncogenesisbyachievingtransformingfunctions,whichinducehepatocarcinogenesis.Additionally,HBxcanmodulateapoptosisandimmuneresponsebydirectorindirectinteractionwithhostfactors.WeconcludethatHBxhastensthedevelopmentofhepatoma.

简介：目的探讨倒刺线对儿童四肢骨折皮内缝合速度和瘢痕的影响是否优于传统可吸收线。方法自2016年6月至2017年6月,选取我院小儿骨科收治的四肢骨折患者128例,均接受切开复位内固定术。其中男36例,女92例;年龄4～12岁,平均（7.3±2.1）岁;缝合部位：上臂35例,前臂29例,大腿24例,小腿40例;体质量指数（bodymassindex,BMI）16～30,平均22.1±4.3。所有患者按住院号奇偶分为倒刺线组和传统可吸收线组,其中倒刺线组58例,采用4-0双向倒刺线（强生STRATAFIX）进行皮内缝合;传统可吸收线组70例,采用4-0可吸收线（强生ETHICON）进行皮内缝合。术后3个月采用温哥华瘢痕评价量表（vancouverscarscale,VSS）进行瘢痕评价。记录切口缝合速度（切口长度/缝合时间）与温哥华瘢痕评分。结果倒刺线组切口缝合速度和缝合时间分别为（9.37±1.22）cm和（5.06±0.93）min;传统可吸收线组分别为（9.58±1.40）cm和（10.77±2.72）min,倒刺线组均优于传统可吸收线组,差异有统计学意义（P〈0.01）。倒刺线组瘢痕评分优良率77.65%,可吸收线组瘢痕评分优良率69.09%,差异有统计学意义（P〈0.05）。结论倒刺线缝合高效、张力分布均匀、组织刺激小、瘢痕轻微,在小儿骨科四肢骨折皮内缝合中,缝合效率和瘢痕控制优于传统可吸收线。

简介：根据世界癌症研究基金会（WCRF）资助的一项最新研究显示，人体血液中维生素B含量较高将有可能降低发生肺癌的风险，这个结果对吸烟、非吸烟以及曾经吸烟的人群是相同的。这项发现将有助于科学家了解肺癌发病的机理，并将对预防其发生提供线索。

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简介：DuckhepatitisBvims(DHBV)DNAwasdetectedindifferenttumorousnodulesofduckswithhepaticmulticentriccancerorintrahepaticmetastasisbySouthernblottechnique.Among7duckswithhepatocellularcarcinomaofmultipletumornodules,thehybridizationpatternofIntegratedDHBVDNAIndifferenttumorousnoduleswasidenticalin3casesanddifferentin2cases.OnecaseshowedasimilarhybridizationpatternintwotumorousnodulesandotheronewasnegativetorDHBVDNA.IntegratedDHBVDNAwasalsoidentifiedinametastaticlungcancerofduckswithhepatocellularcarcinoma.Thehybridizationpatternofmetastasisoflungswasasthesomeasthatinprimaryhepatocellularcarcinoma.ThesamediscretehybridizationbandsInthedifferenttumorousnodulesindicatethatthesenodulesmightarisefromonetransformedcell.ThedifferenthybridizationpatternsInvarioustumorousnodulesshowthatthesetumorousnodulesmightarisefromvarioustransformedcells.Theresultssuggestthatthehyb

简介：目的探讨乳腺癌改良根治术中缝合背阔肌前缘对术后引流量的影响。方法选取2015年1月至2017年1月于河南大学第一附属医院乳腺甲状腺外科行手术治疗的乳腺癌患者80例,根据随机数字表法将其分为对照组和观察组各40例。对照组行标准改良根治术治疗,观察组在术中于改良根治术完成后缝合背阔肌前缘。对比两组患者相关手术指标及出院前1天并发症发生情况,同时采用生活质量调查表（QLQ-C30）对患者生活质量进行评估。结果观察组患者术后引流量较对照组少,住院时间和拔管时间明显较对照组短,差异有统计学意义（P〈0.05）;治疗后,观察组患者生活质量各项评分明显较对照组高,差异有统计学意义（P〈0.05）;两组术后并发症发生率比较,差异无统计学意义（P〉0.05）。结论乳腺癌改良根治术中缝合背阔肌前缘可减少患者术后引流时间,缩减患者住院时间和引流管拔管时间,提高其生活质量。

简介：Objective:ToassesstheeffectofantiviraltherapyforhepatitisBvirus(HBV)-relatedhepatocellularcarcinoma(HCC)afterradicalhepatectomy.Methods:Atotalof478HBV-relatedHCCpatientstreatedbyradicalhepatectomywereretrospectivelycollected.Patientsinthetreatmentgroup(n=141)receivedpostoperativelamivudinetreatment(100mg/d),whereaspatientsinthecontrolgroup(n=337)didnot.Recurrence-freesurvival(RFS)rates,overallsurvival(OS)rates,treatmentsforrecurrentHCCandcauseofdeathwerecomparedbetweenthetwogroups.Propensityscorematching(PSM)analysiswasalsoconductedtoreduceconfoundingbiasbetweenthetwogroups.Results:The1-,3-,and5-yearRFSratesdidn’tsignificantlydifferbetweenthetwogroups(P=0.778);however,the1-,3-,and5-yearOSratesinthetreatmentgroupweresignificantlyhigherthanthoseinthecontrolgroup(P=0.002).Similarresultswereobservedinthematcheddata.SubgroupanalysisshowedthatantiviraltreatmentconferredasignificantsurvivalbenefitforBarcelonaClinicalLiverCancerstageA/Bpatients.FollowingHCCrecurrence,morepeopleinthetreatmentgroupwereabletochoosecurativetreatmentsthanthoseinthecontrolgroup(P=0.031).Forcauseofdeath,fewerpeopleinthetreatmentgroupdiedofliverfailurethanthoseinthecontrolgroup(P=0.041).Conclusion:PostoperativeantiviraltherapyincreaseschancesofreceivingcurativetreatmentsforrecurrentHCCandpreventsdeathbecauseofliverfailure,therebysignificantlyprolongingOS,especiallyinearly-orintermedian-stagetumors.

简介：许多人类疾病的发生和发展可归因于一些基因的异常表达，从而导致疾病的发生。其中一部分基因是在核因子kappaB（nuclearfactor-kappaB，NF—κB）调控下进行的。NF—κ是广泛存在于哺乳动物中的转录因子，是由Sen等于1986年首先在B细胞中发现的一种核蛋白。因它能与B细胞免疫球蛋白上的K轻链基因增强子κB序列（GGGACTITCC）特异结合而得名。实际上它能与多种细胞基因的启动子和增强子序列位点发生特异性结合，并促进转录和表达，参与众多与免疫和炎症反应有关的基因转录的调控。它的异常激活或完全抑制与多种疾病的发生有关。在控制细胞增殖、凋亡、肿瘤的发生、发展和耐药问题上均起着重要的作用。因此深入探讨NF—κB在体内病理状态下的活化机制以及其与细胞、基因之间的调节作用具有重要的意义。现就NF—κB的组成、结构、激活途径以及与肿瘤的关系作一综述。

简介：Objective:Cancercellradioresistanceisastumblingblockinradiationtherapy.TheactivityinthenuclearfactorkappaB(NFκB)pathwaycorrelateswithanti-apoptoticmechanismsandincreasedradioresistance.TheIKKcomplexplaysamajorroleinNFκBactivationuponnumeroussignals.Inthisstudy,weexaminedtheinteractionbetweenionizingradiation(IR)anddifferentmembersoftheIKK-NFκBpathway,aswellasupstreamactivators,RAF1,ERK,andAKT1.Methods:Theeffectof4GyofIRontheexpressionoftheRAF1-ERK-IKK-NFκBpathwaywasexaminedinA549andH1299lungcancercelllinesusingWesternblotanalysisandconfocalmicroscopy.WeexaminedchangesinradiationsensitivityusinggenesilencingorpharmacologicalinhibitorsofERKandIKKβ.Results:IKKα,IKKγ,andIκBαincreaseduponexposuretoIR,therebyaffectingnuclearlevelsofNFκB(phospho-p65).ERKinhibitionorsiRNA-mediateddown-regulationofRAF1suppressedthepost-irradiationsurvivaloftheexaminedlungcancercelllines.AsimilareffectwasdetectedonsurvivaluponsilencingIKKα/IKKγorinhibitingIKKβ.Conclusions:ExposureoflungcancercellstoIRresultsinNFκBactivationviaIKK.ThegeneticorpharmacologicalblockageoftheRAF1-ERK-IKK-NFκBpathwaysensitizescellstotherapeuticdosesofradiation.Therefore,theIKKpathwayisapromisingtargetfortherapeuticinterventionincombinationwithradiotherapy.

简介：Objective:TodeterminewhetherInterferon-alpha-2b(IFN-α2b)canmodulatetheautophagicresponseinhepatocellularcarcinomacells.Methods:HepatocellularcarcinomacellsweretreatedwithIFN-α2b.Autophagywasassessedbyacridineorangestaining,GFP-LC3dottedassay,transmissionelectronmicroscopyandimmunoblotting.Results:AcridineorangestainingshowedthatIFN-α2btriggeredtheaccumulationofacidicvesicularandautolysosomesinHepG2cells.TheacridineorangeHepG2cellratioswere(4.3±1.0)%,(6.9±1.4)%,and(13.1±2.3)%,respectively,aftertreatmentwith100,1,000,and10,000IU/mLIFN-α2bfor48h.AmarkedlypunctatepatternwasobservedinHepG2cellstreatedwith10,000IU/mLIFN-α2bfor48h,butonlydiffuseandweaklyfluorescentGFP-LC3punctawasobservedincontrolcells.HepG2cellstreatedwith10,000IU/mLIFN-α2bfor48hdevelopedautophagosome-likecharacteristics,includingsingle-ordouble-membranevacuolescontainingintactanddegradedcellulardebris.TheBeclin1andLC3-IIproteinexpressionwasup-regulatedbyIFN-α2btreatment.Conclusion:Autophagycanbeinducedinadose-dependentmannerbytreatmentwithIFN-α2binHepG2cells,andtheBeclin1signalingpathwaywasstimulatedbyIFN-α2b.

简介：Objective:Toinvestigatephospho-(-cateninexpressioninnon-smallcelllungcancer(NSCLC)andtostudytherelationshipbetweenphospho-(-cateninexpressionandsomeclinicalpathologicalfactors.Methods:Theexpressionofphospho-(-cateninin67primaryNSCLCcasesdetectedimmunohistochemically.Results:phospho-(-cateninwasnotexpressedinnormalbronchialmucouscellandshowedcytoplasmicandnuclearexpressioninNSCLCcell.Totalpositiveexpressionratereached62.7%,andpositiveexpressionrateofnucleuswas38.8%.Thepositiveexpressionrate(87.5%)andnuclearexpressionrateofadenocarcinoma(62.5%)wereapparentlyhigherthanthoseofsquamouscellcancer(40.0%and17.1%)(P<0.01).Expressionofphospho-(-cateninhadnorelationshiptodifferentiationdegreeandlymphaticmetastasis.Thepostoperativesurvivaltimeisnotrelatedtophospho-(-cateninexpression.(Log-ranktest,P=0.9198;P=0.6274).COXmodelanalysisshowedthattumorstageanddifferentiationareindependentriskfactorstoprognosis(P=0.001;P=0.020).Conclusion:NSCLCcellsshowpositiveexpressionofphospho-(-catenin,phospho-(-cateninnuclearexpressionisrelevanttohistologicaltypes.Thereisnodifferenceinpostoperativesurvivaltimebetweenpatientswithphospho-(-cateninpositiveexpressionandpatientswithnegativeexpression,expressionofphospho-(-cateninisnotindependentriskfactortoprognosis.

简介：Objective:Toassesstheclinicalfeatures,survivalandprognosticfactorsofprimarytesticulardiffuselargeB-celllymphoma(DLBCL).Methods:Aretrospectivestudyof37patientswithprimarytesticularDLBCLwascarriedoutfromNovember2003toMay2012.Theirclinicalfeatures,survivalandprognosticfactorswereanalyzed.Results:Duringamedianfollow-upperiodof39.8months(5.4-93.0months),themedianprogression-freesurvival(PFS)was26.2months(95%CI:0-65months)andthe3-yearoverallsurvival(OS)ratewas78.4%.Withinthewholecohort,thefactorssignificantlyassociatedwithasuperiorPFSwerelimitedstage(stageI/II),lactatedehydrogenase(LDH)≤245U/L,internationalprognosticindex(IPI)≤1,primarytumordiameter<7.5cm,andpatientswhohadcompleteresponse(CR)andreceiveddoxorubicin-containedchemotherapy(P<0.05).Therewasatrendtowardsuperioroutcomeforpatientswhoreceivedcombinedtherapy(surgery/chemotherapy/radiotherapy)(P=0.055).PatientswhohadCR,primarytumordiameter<7.5cmandIPIscore≤1weresignificantlyassociatedwithlongerPFSatmultivariateanalysis.Conclusions:PrimarytesticularDLBCLhadpoorersurvival.CR,primarytumordiameterandIPIwereindependentprognosticfactors.Thecombinedtherapyoforchectomy,doxorubicin-containedchemotherapyandcontralateraltesticularradiotherapy(RT)seemedtoimprovesurvival.

简介：目的：研究miR-940对胃癌细胞增殖的影响,探讨miR-940和Cbl-b信号转导通路在此过程中的作用。方法：采用Real-timePCR法检测胃癌细胞中miR-940的表达,MTT法检测胃癌细胞的增殖能力,双荧光素酶报告基因检测系统检测miR-940与Cbl-b的结合,Westernblotting实验观察蛋白的表达。结果：MTT法显示miR-940可促进胃癌细胞MGC803的增殖,BLAST对比分析结果显示Cbl-b与miR-940存在结合位点。双荧光素酶报告基因检测系统证实Cbl-b是miR-940的靶基因。Westernblotting结果显示过表达miR-940后,Cbl-b的表达明显下调。Cbl-b抑制胃癌细胞MGC803的增殖。miR-940通过负向调节Cbl-b的表达促进胃癌细胞的增殖。结论：miR-940通过抑制Cbl-b的表达,促进胃癌细胞MGC803的增殖。

简介：目的：研究B7-H4在乳腺癌中的表达情况及其与各临床病理变量之间的相关性。方法：应用免疫组织化学染色分析51例乳腺癌手术患者切除的肿瘤标本的B7-H4的表达情况，分析其与年龄、肿瘤类型、大小、淋巴结转移、肿瘤分期、激素受体表达情况、Her-2／neu状态的相关性。结果：B7-H4可表达于乳腺癌细胞的胞膜上、胞浆内或同时表达于两者之内。88．2％（45／51）的标本B7-H4阳性，并且与肿瘤中Her-2／neu状态（P=0．04）、组织学类型（P=0．002）明显相关，Her-2／neu阳性患者中B7-H4的表达要明显高于阴性的患者，浸润性导管癌细胞中B7-H4的表达显著高于原位癌，而与其他临床病理参数无关。结论：B7-H4可能与肿瘤的预后和肿瘤的进展相关。

简介：目的观察由吉西他滨（GEM）联合顺铂（DDP）、地塞米松（DXM）组成的GDP方案治疗难治性弥漫大B细胞淋巴瘤（DLBCL）的疗效和毒副反应。方法2006年3月至2008年9月收治的25例难治性DLBCL患者，给予吉西他滨1000mg／m^2，第1、8天，静脉滴注；顺铂25mg／m^2，第1—3天，静脉滴注；地塞米松40mg／d，第1—4天，口服。21天为1周期。2个周期后评价疗效，并随访疾病进展情况。结果25例患者中，18例获缓解（72％），其中完全缓解8例（32％），部分缓解10例（40％）。25例患者中位肿瘤进展时间（TTP）为7．5个月（95％CI：7．17～7．82个月）。主要不良反应为骨髓抑制和轻中度的消化道反应。骨髓抑制主要表现为3—4级白细胞减少7例，3级血小板减少5例。结论吉西他滨联合顺铂、地塞米松的GDP方案治疗难治性DLBCL的近期疗效较好，安全性较高。

简介：Objective:TostudythesynergiceffectsofIL-12andB7-1transfectantonantitumorimmunityinvivo.Methods:TheretrovirusvectorencodingmIL-12andmB7-1genewastranfectedintoEL-4thymiclymphomacellsrespectively.Thecellswereusedastumorvaccineandthetherapeuticeffectwasobserved.Results:IncontrasttothemiceimmunizedwithEL-4/WtorEL-4/Neogroups,thetumorigenicityofEL-4/IL-12transfectantwasdecreased(P<0.001).TheEL-4/IL-12andEL-4/B7-1cellsirradiatedwith60CoshowedsignificantsystematicprotectiveeffectsagainsttherechallengeofEL-4/Wt.60CoirradiatedEL-4/IL-12cellsdelayedtheoccurrenceoftumorandprolongedthesurvivalperiodoftumorbearingmice.CombinationofthevaccinesofEL-4/IL-12andEL-4/B7-1resultedintheenhancedtherapeuticeffectcomparedwitheachsingletransfectantgroup(P<0.001).Conclusion:TheresultsshowedthatIL-12transducedcellscouldenhancetheantitumorimmunityofhostascancervaccine.CombinationoftheEL-4/IL-12andEL-4/B7-1transfectantcouldimproveimmunityofhostandisaprospectcancervaccine.

简介：1病案摘要患者,男,39岁.因左鼻塞1年伴双颈肿块1月入院.该患者于1年前无诱因下出现左侧鼻塞,未经处理.1月前双颈出现无痛性肿块而来我院就诊.