简介：Objective:Toinvestigatetheeffectofbreast-conservationtherapyinearlystagebreastcancer.Methods:Atotalof234earlystagebreastcarcinomapatientsreceivedbreastconservingtreatmentinourhospital.Aftertheoperation,theyunderwentadjuvantchemotherapyandradiotherapy.Allofthesepatientsdesiredtopreservetheirbreasts.Results:Aftermedianfollow-upof29.46months(rangefrom3to100months),3caseshadlocalrelapseand8caseshaddistantmetastasis.Theoverallsurvivalrateof5yearwas96.7%,andthediseasefreesurvivalrateof5yearwas87.85%.Conclusion:Forearlystagebreastcarcinomapatients,classicquadrantectomy,axillarydissectionandpost-operativeadjuvantchemotherapyandradiotherapyleadtoexcellentlocalcontrolandgoodsurvival.

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简介：目的:建立大鼠异基因骨髓移植模型,探讨供受体的不同T细胞比例对GVHD严重程度的影响.方法:受体SD大鼠接受TBI+CTX预处理,分别按1∶1、2∶1、4∶1的移植物与受体T细胞比例回输供体WISTAR大鼠骨髓细胞,观察受体生存期、临床及病理GVHD评分.结果:实验组大鼠按移植物与受体T细胞比例为1∶1和2∶1移植时生存期、临床及病理GVHD评分与4:1时差异有显著性(P＜0.05).结论:当移植时移植物内T细胞和经预处理后受体残存T细胞比例为1∶1和2∶1时GVHD程度较轻,而4∶1时GVHD明显加重.

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：Objective:ToconstructamutantpEGFP-hTERTexpressionvector,toobserveitssteadyexpressionintransfectedhumanbladdercarcinomacelllineT24anditsroleinmolecularregulatorymechanismsoftelomerase,andtoprovideanewtargetgeneforbladdercancer.Methods:PCRamplificationwasperformedbyusingprimersbasedontheknowngenesequenceofhTERT.PCRproductionwasclonedintoplasmidpGEMT-TeasyandthesequenceofmutanthTERTgenewasanalyzed.ArecombinantmutanthTERTvector(pEGFP-hTERT)wasconstructedattheEcoRIandSalIsitesofthepEGFP-C1vector.AftertransfectingthefusiongeneintobladdercarcinomacelllineT24bycalciumphosphate-DNAcoprecipitation,thesteadyexpressionofGFP-hTERTfusionproteinwastestedbyfluorescentlightmicroscopy.TheproliferationchangesofbladdercarcinomacelllineT24weredetectedbylightmicroscopyandsenescencecorrelatedβ-galactosidasestaining.Results:IdentificationofpEGFP-hTERTbyenzymedigestionshowedthatmutanthTERTfragmenthadbeenclonedintoEcoRIandSalIsitesofthepEGFP-C1vector.ThesteadyexpressionofGFP-hTERTfusionproteinwaslocalizedinthenucleusoftransfectedcells.Expressionofsenescence-associatedβ-galactosidaseintransfectedcellsgraduallyincreasedwithextendedculturedtimeandcellgrowthwassuppressed.Conclusion:Themutant-typehTERTgenesuppressestheproliferationofbladdercarcinomacelllineT24bycompetitiveeffectontelomeraseactivity.ThissuggeststhathTERTgenemightbeasuitablegenetargetforbladdercancertherapy.

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：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.

简介：客观：为了改进倔强的脸中部的外部T房间non-Hodgkin鈥檚的功效，有L天门冬氨酰胺酶(LASP)的淋巴瘤(MPTC-NHL)基于抢救化疗。方法：有倔强的MPTC-NHL的21个病人被分析，11patients(LASP组)收到了L天门冬氨酰胺酶基于的抢救化疗由L天门冬氨酰胺酶，长春新碱和dexame-thosone组成。没有L天门冬氨酰胺酶，10个病人(控制组)收到了抢救联合化疗。结果：完全的宽恕率为LASP组是45.6%，0.0%为控制组织(P<0.05)。全面反应率(CR+PR)为LASP组是63.6%，10.0%为控制组织，分别地(P<0.05)。2年的幸存率为LASP组是45.5%，0.0%为控制组织(P<0.05)。LASP的主要不利效果是白细胞减少，浆液bilirubin和多糖症的举起。结论：LASP基于的初步的临床的学习表演抢救化疗可以与倔强的MPTC-NHL改进反应率和病人的2年的幸存率。进一步继续学习是必要的。

简介：目的评价无口咽侵犯的T1-2N0鼻咽癌不同设野放射治疗的近期疗效。方法将56例T1，2NoM01992年福州分期鼻咽癌病人随机分为面颈联合野组（A组）和面颈分野组（B组），A组先设面颈联合野和下颈切线野，均照射36Gy后改双耳前野24Gy，鼻前野8—10Gy和颈前切线野14Gy；B组设置双耳前野60Gy，鼻前野8-10Gy，颈前切线野50Gy。结果放疗结束时，鼻咽原发灶消退率A组和B组分别为96.4％和92．9％，两组无显著差异。A、B组2年总生存率分别为89.3％和85．7％。面颈分野组1例发生放射性颈脊髓损伤，两组急性和慢性放射损伤差异均无显著性。结论T1-2N0M0鼻咽癌病人选用面颈联合野或面颈分野，疗效无显著性差异。5年生存率及远期放射损伤情况有待进一步观察。

简介：背景与目的：脑胶质瘤是常见的颅内肿瘤，占脑恶性肿瘤的50％以上，化疗作为综合治疗的一项重要手段，仍存在效果不理想、易耐药等问题。本文就研究中华眼镜蛇毒组分C（FractionCfromNajaNajaActraVenom，NNAV．FC）体外对人胶质瘤细胞株U-251的细胞毒性作用，并与几种临床脑肿瘤化疗用药进行比较，以求为脑胶质瘤的治疗提供新的化疗药物。方法：应用MTT法．观察NNAV．FC人胶质细胞瘤株U-251的细胞毒作用、量效关系等，并与依托泊苷（vp=16、鬼臼乙叉苷、Vepesid）、卫萌（替尼泊苷、鬼臼甲叉甙vm-26，Teniposide）、顺铂（Cisplatin、CDDP）、卡铂（Carboplatin）、五氟尿嘧啶（5-FU）等对上述细胞的细胞毒作用进行比较。结果：FC对人胶质瘤细胞有明显的抑制作用，其24及48h的IC50分别为5．76和7．19μg／ml，且呈良好的量效关系。结论：在本实验中，FC能有效抑制胶质瘤细胞株的生长，抑制作用与浓度呈正相关，与临床胶质瘤化疗药相比较。FC是有效地抑制胶质瘤细胞生长的药物。