简介:目的探讨非小细胞肺癌(NSCLC)组织中醛酮还原酶1C3(AKRlC3)表达及其临床意义。方法收集2013年1月至2016年3月88例手术切除的NSCLC组织及83例癌旁正常组织,采用实时荧光定量PCR(QPCR)法检测上述组织中的AKRlC3表达水平,分析AKRlC3表达与NSCLC临床病理参数(性别、年龄、TNM分期、肿瘤大小、组织学类型及淋巴结转移)的关系;根据随访资料分析AKRlC3表达与预后的关系,采用受试者工作特征曲线(ROC)评价AKRlC3表达在NSCLC早期诊断中的效能。结果NSCLC组AKRlC3表达水平为0.187±0.175,低于癌旁正常组织的1.079±0.384,差异有统计学意义(P〈0.05);AKRlC3诊断NSCLC的曲线下面积为0.982(95%CI:0.966~0.998)。AKRlC3表达与NSCLC性别、年龄、组织学类型及淋巴结转移无关,与肿瘤大小及TNM分期有关。肿瘤大小〉3em的AKRlC3表达量为0.095+0.055,低于肿瘤大小≤3em的0.340±0.201,而Ⅲ、Ⅳ期的AKRlC3表达量为0.094±0.058,低于I、Ⅱ期的0.265±0.202,差异有统计学意义(P〈0.05)。全组NSCLC患者的中位总生存期(OS)为17.60个月。AKRlC3高表达者的中位0s为20.60个月,高于低表达者的11.90个月,差异有统计学意义(P〈0.05);I+Ⅱ期患者的中位OS为21.65个月,高于Ⅲ+Ⅳ期的16.20个月,差异有统计学意义(P〈0.05);肿瘤大小≤3em者的中位OS为18.40个月,高于〉3em者的15.70个月,差异有统计学意义(P〈0.05)。结论AKRlC3在NSCLC组织中表达降低,且与TNM分期、肿瘤大小及预后有关,可能与NSCLC发生发展有关,在NSCLC诊断及病情评估有一定价值。
简介:我科于2013年12月手术治疗伴骶骨翼骨折、脱位的TileC3型骨盆骨折1例,随访半年,报告如下。临床资料一、一般资料患者,男,45岁。因车祸伤2h急诊入院。受伤机制:建筑物旁站立位被汽车挤压、上半身扭转受伤致腰-盆分离。入院情况:BP70/50mmHg,腰骶部及大腿皮下血肿,骨盆变形。右足屈伸肌力IV+级,右下肢其余肌力0级,左侧肢体肌力、感觉正常。大小便失禁。CT:右侧L1~5横突骨折,双侧骶髂关节脱位、骶骨粉碎性骨折,其中右侧骶骨翼骨折、前脱位,双侧耻骨上下支等多处骨折(图1)。住院后外固定架临时固定,于ICU抗休克治疗,伤情稳定后于伤后第8天手术。
简介:Prostatecancergene3(PCA3,alsoknownasDD3)isanewbiomarkerthatcouldimprovetheaccuracyofprostatecancerdiagnosis.Itisagreatbiomarkerwithfairlyhighspecificityandsensitivity.Theincidenceofprostatecancerisrisingsteadilyinmostcountries.Thecommonlyusedprostate-specificantigen(PSA)testoncegavepeoplehopeforearlydiagnosisofprostatecancer.However,thelowspecificityofthePSAtesthasresultedinalargenumberofunnecessarybiopsiesandovertreatment.Duringthepastdecade,manynewprostatecancerbiomarkershavebeenfound.Amongthese,PCA3isthemostpromising.Duetoitsgreatperformanceindistinguishingprostatecancerfromotherprostateconditions,PCA3couldlikelybeappliedforearlydiagnosisofprostatecancer,patientfollow-up,prognosisprediction,andtargetedtherapy.Afteryearsofresearch,wehaveobtainedsomeknowledgeaboutthesequenceofPCA3gene.WehavealsodeterminedtherelationshipbetweenPCA3andtheproliferationofprostatecancercellsandlearnedsomeinformationabouthowPCA3affectstumor-relatedgenesandproteins.APCA3scorehasbeencreated,andithasbeenusedinavarietyofstudies.SomeresearchershaveevenappliedPCA3totargetedtherapyandobtainedagoodeffectinvitro.Thisreviewdescribesthecurrentstateofresearch,andexploresthefutureprospectsforPCA3.更多还原
简介:Forelectronicmicroscopicobservation,wefoundSSV-transformedNIH3T3cellsweredifferentfromnon-transformedcells.InSSV-transformedNIH3T3cellsnucleicytoplasmaratiowasincreasedandincytoplasmatheribosomes(polyribosomeswereattachedtotheswollenroughendoplasmicreticulum.Itwaslikelythatribosomeswerelinedtogetherfunctionallyandstructionallytoproducespecificprotein(PDGF-likeprotein).
简介:Objective:ToexploretheeffectsofnuclearM-CSFontheprocessoftumorigenesis.Methods:FunctionalpartofM-CSFcDNAwasinsertedintoaneukaryoticexpressionplasmidpCMV/myc/nuc,whichcanaddthreeNLStotheC-terminaloftheexpressedproteinanddirecttheproteinintothecellnuclei.TheconstructedplasmidwastransferredintoNIH3T3cellsandthecellcloneswereselectedbyG-418selection.CellclonesstableexpressingtargetproteinwereidentifiedbyRT-PCR,ABCimmunohistochemistryassayandWesternblot.Cellgrowthkineticsanalysesthroughgrowthcurves,celldoublingtime,MTTtestandanti-senseoligodeoxynucleotide(ASODN)inhibitingcellgrowthtestwereperformedtoidentifycellsproliferationpotential.Results:Thetransfectedcellsshowedelevatedproliferationpotentialoverthecontrolcells.Conclusion:AbnormalappearanceofM-CSFinnucleuscouldenhancecellproliferation,whichsuggeststhatcytokineisoformswithincellnucleusmightplaytranscriptionfactor-likerole.
简介:目的:探讨14—3—3β基因(酪氨酸3-加单氧矽色氨酸5-加单氧酶激活蛋白基因)对卡波氏肉瘤(Kaposigsarcoma,KS)细胞迁移的影响。方法:采用脂质体法将14—3—3β基因稳定转染入BCBL—1(HHV-8positiveandEBVnegativehumanBcells)细胞,Western—Blot检测14—3—3β蛋白的表达,最后利用Transwell法分析14—3—3β基因对BCBL-1细胞迁移的影响(设立空载体组和阴性对照组)。结果:pcDNA3.1/myc—His(-)A-14—3—3β组细胞迁移数目明显高于pcDNA3.1/myc—His(-)A组和阴性对照组,差异具有统计学意义(P〈0.05);pcDNA3.1/myc—His(-)A组和阴性对照组细胞迁移数目相比差异无统计学意义(P〉0.05)。结论:14—3—3β基因能促进KS细胞的迁移。
简介:TheeffectofTPA,apotenttumorpromoter,onSSV-NIH3T3cellsinserum-freemediumwasinvestigated.TPAstimulatedDNAsynthesisofSSV-NIH3T3cellsonthethirddayofcultureinSFM.InSDS-PAGFofmediumconditionedbyTPA-treatedSSV-NIH3T3cells(inSFM+TPA),theamountsoffourproteinsof31.0Kd,28.5Kd,25.5Kdand13.5Kdstrikinglyincreasedoverthatofnon-TPA-treatedcounterpart(inSFM).ThePDGF-likeactivitywasalsodetectedinCMofSFM+TPA.WheninsulinandEGFweredrownofftheSFM+TPA(SFM-Ins-EGF+TPA),TPAlostitsabilitytostimulateDNAsynthesisofSSV-NIH3T3cellsonthethirddayandSDS-PAGEoftheconditionedmediumshowedthattheamountsofthefourproteinsnotedabovegratelyreduced.However,cellsinSFM-Ins-EGF+TPAwereinalmostthesamegrowthconditionascellsincompleteSFM+TPAonthethirddayofculture.Resultswerediscussedinthepaper.
简介:客观干扰素(IFN)和ribavirin(RBV)的联合是为丙肝的标准治疗病毒(HCV)感染。HCV遗传型2a对治疗证明了更顺从,但是它的功效是还有限的。这研究试图在HCV遗传型2a感染的一种情况中调查差的反应的机制。方法:我们从一个病人分析了HCVRNA的动态变化,与HCV遗传型2a感染了,显示出差的virological回答到是的IFN/RBV判定了12在由HCV的治疗的开始以后的星期克隆定序。然后,我们构造了subgenomic日语有人性化的Gaussia的暴发性的hepatitis-1(JFH1)replicon和不同妄想的replicons酶基因。妄想的replicons从subgenomicJFH1replicon,NS5A区域被病人顺序从pre/posttreatment在代替被导出,并且到IFN的妄想的replicons危险性被相对Gausia酶活动评估。预告的处理HCV定序的结果显得几乎一致,并且quasispecies变化是进一步的在12星期治疗以后简化的更多。而且,quasispecies变化似乎相对,在NS5A更多样化为IFN反应关键的一个区域,和每妄想的replicons展出了不同反应到IFN。结论在长期的感染的功课期间,HCV人口似乎被使适应病人免疫学的系统,并且推进被IFN/RBV治疗的联合选择,显示quasispecies可以完全与IFN的与那些不同的目标由另外的药的增加消除了。另外,到IFN的妄想的replicon的各不同的反应与氨基酸变化在或在在长期的感染和IFN/RBV治疗期间决定NS5A的区域(ISDR)的IFN敏感附近有关是最可能的。
简介:Objective:Noninvasivediffusion-weightedmagneticresonanceimaging(DWI)isawell-studiedMRimagingtechniqueforquantifyingwaterdiffusionespeciallyintumorarea.Thecorrelationbetweenapparentdiffusioncoefficient(ADC)valueandapoptosisorproliferationisnotclearbynow.ThisstudyaimedtoinvestigatewhetherDWI-ADCvaluecouldbeusedasanimagingmarkerrelatedwithpathologicindexesoftumors.Methods:Atotalof30Balb/cmicewithHT29colorectalcarcinomaweresubjectedtoDWIandhistologicanalysis.ThepercentageofADCchangesandtheapoptoticandproliferatingindexeswerecalculatedatpredefinedtimepoints.Kolmogorov-SmirnovdistanceswereconsideredtodeterminewhetherthepercentageofADCchanges,andtheapoptoticandproliferatingindexeswerenormallydistributed.Anindependent-samplest-testwasusedtoanalyzethedifferencebetweenapoptoticandproliferatingindexesinthetwogroups.Results:Therewasastatisticallysignificantdifferenceinproliferatingindexbetweentheradiotherapyandcontrolgroups(meanproliferatingindex:49.27%vs.83.09%),andtherewasastatisticallysignificantdifferenceinapoptoticindexbetweenthetwogroups(meanapoptoticindex:37.7%vs.2.71%).AsignificantpositivecorrelationwasfoundbetweenthepercentageofADCchangesoftheviabletissueandapoptoticindex.Pearson'scorrelationcoefficientwas0.655(P=0.015).AsignificantnegativecorrelationwasfoundbetweenthepercentageofADCchangesoftheviabletissueandki-67proliferationindex.Pearson'scorrelationcoefficientwas0.734(P<0.001).Conclusions:OurresultssuggestthatADCvaluemaybeusedinmeasurementofcellapoptoticandproliferatingindexesincolorectalcarcinoma.