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.

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简介：Objective:TostudythecellularimmunityfunctionofpatientswithearlysyphilisandtheeffectsonimmunemodifiersEsberitoxNorIFN.Methods:T-lymphocytesubpopulationsoftheperipheralbloodin44patientswithsyphilisand40healthycontrolswereexaminedbyflowcytometry.Results:ThenumberofCD4+cellsandtheCD4+/CD8+ratioinpatientswithsyphiliswerefoundtobesignificantlylowerthanthoseinthecontrol(P<0.01),whilethenumberofCD8+cellswashigherthanthatinthecontrol(P<0.01).TheCD4+/CD8+ratiointhosewithactivediseasewaslowerthanthatinthosewhohadbeencured(P<0.05).TheCD4+countandtheCD4+/CD8+ratiointhosetreatedwithantibioticsalone(PenicillinGorCephalosporins)werelowerthanthosetreatedwithbothantibioticsandimmunomodulators(P<0.05).Conclusions:Cellularimmunityinthepatientswithearlysyphiliswasprominentlysuppressed,andtreatmentwithimmunomodulatorsmaybehelpfulfortherecoveryofcellularimmunityofthesepatients.

简介：成人T细胞性白血病／淋巴瘤（ATLL）是一种成熟辅助性T淋巴细胞恶性增殖性疾病，由人T淋巴细胞病毒-Ⅰ（HTLV-Ⅰ）感染所致。HTLV-Ⅰ感染流行于加勒比海地区、日本西南部、美洲南部及非洲。血清流行病学调查显示HTLV-Ⅰ感染亦流行于巴西。尽管HTLV-Ⅰ携带者显示病毒在T淋巴细胞内的整合呈多克隆性，但ATLL的各亚型患者显示病毒在肿瘤细胞内的整合为单克隆性。皮肤T细胞淋巴瘤（CTCL）是一组原发于皮肤的淋巴细胞增生性疾病，病因不明。最常见的两种表现为蕈样肉芽肿病（MF）和Sézary综合征（SS）。这两型CTCL的表现均与ATLL相似。因ATLL与CTCL的预后及治疗有根本不同，故在HTLV-Ⅰ流行地区必须严格区分这两种疾病。

简介：临床资料患者，男，59岁，农民。因面颈部斑块、结节、溃疡伴疼痛，间断发热2个月，于2015年6月就诊。6个月前，无明显诱因患者左侧面颊部出现散在黄豆大小红色结节，皮损不断增多、增大形成斑块，并逐渐蔓延至右侧面颈部，部分皮损破渍形成溃疡伴疼痛。在当地医院按湿疹给予药物治疗（具体不详），

简介：报告1例结外鼻型NK/T细胞淋巴瘤患者。患者男,36岁。因“全身散在浸润性红斑、紫红色斑块4个月”就诊。皮肤科检查：躯干、四肢散在分布硬币至核桃大小的红色、紫红色斑块,浸润感明显,双侧腹股沟及腋下淋巴结肿大,左侧睾丸肿胀。经皮肤组织病理及免疫组化检查确诊为“结外鼻型NK/T细胞淋巴瘤”。

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：目的探讨不同辨证分型的银屑病表皮各层P物质表达特征。方法应用免疫组化方法检测不同证型寻常性银屑病皮损中P物质的表达,利用计算机成像分析系统检测银屑病皮损表皮各层P物质的平均光密度。结果与对照组相比,三种证型银屑病P物质表达均高于正常,其中血燥型表达最强,其次是血热型,最弱是血瘀型。三型均在角质层表达最强,其次是基底层,最弱是颗粒层和棘层。血热型在基底层、角质层表达最强,棘层次之,颗粒层最弱。血燥型以颗粒层和角质层强,基底层和棘层弱。血瘀型在基底、颗粒和角质层表达强。结论不同证型的银屑病表皮各层P物质表达存在差异。

简介：Objective:ThisstudyanalyzedtheTlymphocytesandThl/Th2typecytokineprofileshiftintheperipheralbloodofpatientswithrecurrentgenitalherpes(RGH).Methods:Immunofluorescentstainingofcellsurfaceantigenandintracellularcytokines(IL-2,IL-4,IL-12,IFN-r)inperipheralbloodfrom20RGHpatientsand10controlswereanalyzedusingflowcytometrictechniques.Results:RGHpatientshadsignificantlylowerlevelsofCD3^+Tcells,CD4^+TcellsandCD4^+T/CD8^+Tcellsratiocomparedtocontrollevels(P<0.001),andIL-2-producing,IFN-r-producingandIL-12-producingTcellswereincreasedinRGHpatients(CD4^+T:P<0.001,CD8^+T:P<0.05respectively),whereasIL-4-producingTcellswereincreasedinRGHpatientscomparedtocontrols(CD4+T:P<0.05;CDS^+T:P<0.001respectively).Conclusions:RGHpatientshaveTlymphocytesubsetvariationsandThl/Th2cytokinechanges.TheincreaseinTh2cellsThl/Th2imbalancemayhaveimportantimplicationsforRGHpathogenesis.

简介：银屑病是一种由多种免疫细胞和细胞因子介导参与的慢性炎症性免疫性疾病。关于银屑病的确切发病机制尚未阐明,研究发现可能与Th1、Th2、Th17、调节性T淋巴细胞（Treg）细胞、Th22细胞及Th9细胞的异常活化并释放大量细胞因子有关。该文围绕这些免疫细胞及其相关细胞因子主要从近年所发现的Th细胞亚群及其相关细胞因子角度综述了近年来与银屑病T辅助细胞的实验研究进展,阐述各个辅助细胞及相关细胞因子在银屑病发病过程中的作用及关联机制,以期能帮助笔者更深入地了解银屑病的发病机制并为今后的实验研究提供依据。

简介：目的观察甲真菌病人群T细胞亚群的变化，进而探讨甲真菌感染与人体免疫的关系。方法应用免疫荧光法对60例甲真菌病患者的外周血T细胞亚群进行检测。结果甲真菌病患者的外周血CD3^＋．CD4^＋及CD4^＋／CD8^＋比值明显降低（P〈0．05），CD8^＋明显升高（P〈0．05）。结论甲真菌病患者T细胞亚群存在异常。提示细胞免疫在甲真菌病的发病中起着一定的作用。

简介：Objective:TostudytheexpressionofFasandBcl-2proteinsonTlymphocytesubsetsintheperipheralbloodofrelapsingpatientswithcondylomaacuminatum(CA)andhealthycontrols.Methods:Flowcytometry(permeabizationandstainingprocedurewithconjugatedantibodies)wasused.Results:WeobservedthattheexpressionofFasproteinonCD4^+TlymphocytesubsetofCApatientswassignificantlyhigherthanthatofhealthycontrols(P<0.01).Conclusions:IncreasedexpressionofFasproteinonCD4^+Tlymphocytesubsetmaybeacauseofde-creasedpercentageofCD4^+Tlymphocytesubset.ThisinducestheincreasedratioofCD4^+/CD8^+.

简介：0引言调节性T细胞（Treg）即抑制性T细胞，具有免疫调节作用，使机体保持保护性免疫又不发生病理性免疫。效应性T细胞对免疫反应的启动和Treg对免疫反应的下调之间的失衡可导致皮肤慢性炎症或自身免疫。虽然在20世纪70年代就已描述了抑制性T细胞，但由于缺乏识别的标记，对此亚群的认识未有进展。20世纪90年代Sakaguchi等首先描述了一种天然存在于小鼠的表达CD25的CD4·T细胞。动物研究揭示此亚群细胞能抑制抗肿瘤免疫，预防多种自身免疫疾病，包括炎症性肠病和自身免疫糖尿病，并能诱导对皮肤同种移植物的耐受。其后，在人类也描述了此亚群。积累的证据提示这些细胞可能在多种皮肤病中起作用。

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简介：TostudytheroleofTh1/Th2cytokinesinthepathogenesisofrecurrentgenitalherpes(RGH),andtobetterunderstandtherelationshipbetweenthem.Methods:Atwo-colorimmunofluorescentstainingofcellsurfaceantigenandintracellularcytokinesforflowcytometricanalysiswasusedforCD3,IL-2,IL-10,IL-12,IFN-yandTNF-ainCD3^+T-lymphocytesinactivatedperipheralbloodmononuclearcellsofpatientswithRGH.Results:Comparedtocontrols,patientswithRGHshowedfewerCD3^+Tcells(P<0.05)andIL-2producingandIFN-7producingTcells(P<0.02andP<0.001,respectively)afterinvitrostimulationwithPMAandionomycininthepresenceofaproteintransportinhibitor.MoreIL-10producingandIL-12producingTcellswerefoundinpatientswithRGH(P<0.01).TherewasnosignificantdifferenceinthenumberofTNY-αproducingcellsbetweenRGHpatientsandcontrols(P<0.05).Conclusion:RGHpatientsshowedrelativelymoreTh2cytokines.TheimbalancebetweenThlandTh2cytokinesresultsininhibitoryeffectsonaseriesofcell-immuneresponses,whichmayplayanimportantroleinthepathogenesisofRGH.