简介:Abstract:Thisstudyinvestigatedtherelationshipbetweenhumanpapillomavirus(HPV)genotypeandexpressionofp53andp21^WAH1.Expressionofp53andp21^WAH1in35casesofcondylomaacuminatumspecimensinfectedbyHPV6/llandHPV16/18werestudiedusingimmunohistochemicalstaining.Allspecimensofthecondylomaacuminatumcasewerepositiveforexpressionofp53andp21^WAH1.Theexpressionofp53incondylomaacuminatuminfectedbyHPV16/18wassignificantlylowerthanthatinspecimensinfectedbyHPV6/ll.However,expressionofp21wAHbetweenthetwogroupswasnotsignificantlydifferent.Expressionofp53incondylomaacuminatumislikelyrelatedtoHPVgenotype,expressionofp21^WAH1wasnotrelatedtoHPVgenotype.
简介:Objective:TostudythebiologicalactivityofMycoplasmapenetrans35kDalipoprotein(P35)invitro,prokaryoticexpressionvectorpQE31/p35wasconstructedandrecombinantfusionproteinP35(rP35)wasexpressedinE.coli.Methods:Thep35genewasamplifiedbypolymerasechainreaction(PCR),clonedtopQE31,andapositiveclonewasscreened.PCR-mediatedmutagenesiswasusedtochangethetwo"TGA"tripletsto"TGG"tripletswithinthep35gene.ProductionoftherecombinantproteinwasinducedbytheadditionofIPTGtotheE.coliculture,rP35waspurifiedwithaNi-NTASpinKitandrP35purificationwasanalyzedbyWesternblot.Results:About1KbPCRamplificationwasclonedintopQE31.Thetwo"TGA"tripletswithinthep35geneweresuccessfullychangedto"TGG"triplets.ThepQE31/p35vectorexpressedaproteinwithacalculatedmolecularmassof37.4kDainE.coli.Westernblotindicatedthe37.4kDaproteinwasrP35.Conclusion:PQE311p35,aprokaryoticexpressionvectorcontainingp35gene,wassuccessfullyconstructedandexpressedinE.coli.
简介:Objective:Toinvestigatetheroleandclinicalsignificanceofp16proteininCondylomaAcuminatum(CA)anditscancerization.Methods:Theexpressionofp16proteinwastestedin33CAsamplesand7cancerizedCAsamplesbyimmunohistochemicalassays.Results:Therewasabnormalexpressionofp16proteininCAandcancerizedCA,mainlymajorproteinexpression.Thep16proteinexpresseedindifferentlocationsindifferentcaseswasasfollows:Inbasallayercellsinnormalcuits;inspinouslayer,granularlayerandstratumcorneumlayercellsinCA;inkeratinpearlperipheralandspinouslayercellsincancerizedCA.Conclusion..Therewasmajorexpressionofp16proteininCAandcancerizedCA,andtheseproteinofthetwogroupsmightnotnaturallybethesame.Ourstudyindicatedthatinclinicalpractice,whenmajorp16proteinexpressioninCAoccurs,it'sriskofcancerizationshoudbesuspected.
简介:背景:紫外线照射后p53依赖的对DNA损害的反应与p33^ING1b基因有关,近来报道20%的黑素瘤存在p33^ING1b基因突变。目的:分析作者收集的大量新鲜黑素瘤组织和黑素瘤细胞系中p33^ING1b的突变率。方法:通过单链构象多态分析和直接测序法筛查83例原发性黑素瘤和55株黑素瘤细胞系中p33^ING1b的突变。结果:与之前报道相比,作者发现所有黑素瘤中没有体细胞p33^ING1b的突变。分析其结果与以往发表的研究结果间的差异部分可能由于不慎扩增ING1假基因(INGX)和(或)一些标本污染了鼠ING1。结论:p33^ING1b突变在黑素瘤中很罕见。作者强调等位基因特异性引物设计的重要性,以避免假基因扩增,并认为证实遗传同一性和个体细胞系的起源物种很有必要。需进一步研究来阐明黑素瘤致癌机制中p33^ING1b的可能作用。
简介:目的:研究miR-17-3p在寻常型银屑病皮损及外周血中的表达情况,探讨其参与寻常型银屑病的发病机制。方法:收集寻常型银屑病患者(17例)的皮损组织和外周血及正常对照组(4例)皮肤组织和外周血,提取miRNA。采用Real-timePCR技术检测miR-17—3pmiRNA的表达并进行比较。免疫组化法检测寻常型银屑病皮损组织(25例)和正常皮肤组织(15例)中miR-17—3p的可能靶基因FNIPl蛋白的表达,Pearson相关分析银屑病患者外周血中miR-17-3p的表达水平与患者PASI评分的相关性。结果:Real.timePCR显示miR-17—3pmiRNA在寻常型银屑病患者组皮损及外周血中表达量较正常对照组均明显降低(t值分别为34.62、9.16,P值均〈0.05)。miR-17-3p外周血中表达量与患者PASI评分呈负相关(r=-0.56,P=0.019)。寻常型银屑病患者皮损中FNIP1蛋白表达阳性率明显高于对照组(x^2=9.72,P〈0.05)。结论:寻常型银屑病患者皮损及外周血中miR-17-3p表达下调可能与银屑病的发病有关,miR-17-3p可能通过调节靶基因FNIPl参与银屑病发病。通过检测外周血中miR-17—3p的表达量可能可以评估患者病情严重程度。
简介:目的:探讨FOXA1、p16在子宫内膜癌组织中的表达情况及其临床意义。方法:采用免疫组化方法检测FOXA1、p16在68例子宫内膜癌组织、11例不典型增生组织及27例正常子宫内膜组织中的表达情况,分析2者与子宫内膜癌各临床病理指标的相关性以及2者表达的相关性。结果:子宫内膜癌组织中FOXA1、p16阳性表达率均低于正常子宫内膜组织及不典型增生内膜组织,差异具有统计学意义(P〈0.05);FOXA1、p16的表达与子宫内膜癌病理分期、组织分级、肌层浸润、病理类型及淋巴结转移情况有关(P〈0.05);2者在子宫内膜癌中的表达呈正相关。结论:FOXA1和p16与子宫内膜癌的发生发展相关,2者在子宫内膜癌的发展中具有协同作用。
简介:目的:探讨AEG-1、P16、KI-67蛋白在宫颈癌前病变中的表达与临床意义。方法:2008年2月至2015年9月选择在我院诊治的宫颈癌前病变患者98例作为癌前病变组,同期选择宫颈癌患者98例作为宫颈癌组和98例健康体检人作为对照组,取三组的宫颈样本都进行AEG-1、P16、KI-67蛋白表达的免疫组化分析,并调查了临床资料进行相关性分析。结果:AEG-1、P16、KI-67蛋白在宫颈癌组的阳性表达率分别为80.0%、93.9%和92.9%,而癌前病变组为57.1%、50.0%和57.1%,在对照组为3.1%、2.0%和4.1%,三组间对比差异有统计学意义(P〈0.05)。AEG-1、P16、KI-67蛋白的阳性表达与宫颈癌前病变的年龄、疾病类型、HPV感染等病理参数对比差异有统计学意义(P〈0.05)。直线相关性显示AEG-1、P16、KI-67蛋白表达都呈现两两正向相关性(P〈0.05)。结论:AEG-1、P16、KI-67蛋白在宫颈癌前病变中都呈现高表达状况,且与临床病理特征存在相关性,三者可互相作用影响宫颈癌前病变的发展状况。
简介:Reiter'ssyndromeisasecondarydiseaseofurethrainfection.Itconsistsofurethritis,nonsuppurativearthritis,conjunctivitisandcutaneousmucosalesions.YoungmalesaremorelikelytogetReiter'ssyndromethanfemales.Thusfar,therearenoreportsofwomeninChinawithReiter'sSyndrome.ThisreportdocumentstwofemaleswithReiter'sSyndrome.
简介:Summary:RiskfactorsforgenitourinaryChlamydiatrachomatis(Ct)infectionwereinvestigatedusinganSTDrelativeriskfactorquestionnaireamong176patientsandtheirregularsexualpartners.Twenty-fourindependentvariableswereselectedforanalysis,nineofwhichwereconfirmedasfactorsassociatedwithC.trachomatis.Fouroftheninefactorsweresignificantlycorrelatedtoinfectionusingamultifactorialunconditionallogisticregressionmodelwhichincluded:levelofeducation(oddsratios[ORs]:2.144forbelowjuniormiddleschool),numberofsexualpartners(ORs:4.503for≥5),numberofregularpartner'ssexualpartner(ORs:16.333for≥5),STDhistoryofregularpartner(ORs:18.417fortheirSTDhistory).Thesedatademonstratethatregularpartner'ssexualbehaviorsarealsoanimportantriskfactorforCtinfectionamong,STDclinicclients.