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:Objective:Tostudythecellularimmunitystatusofpatientswithrecurrentgenitalherpes.Methods:Serumlevelsofinterlukin-2anditssolublereceptorandinterlukin-6weremeasuredbyELISAin34patientswithrecurrentgenitalherpes.Results:SerumlevelsofIL-2andIL-6weresignificantlydecreasedinpatientscomparedtohealthycontrols(P<0.01),andthelevelofsIL-2Rwassignificantlyincreasedinpatientswithrecurrentgenitalherpes(P<0.01).Therewerenosignificantdifferencesinallvariablesamongstpatientsregardingrelapsestageandremissionstage(P>0.05).Conclusion:Therewasacellularimmunedeficiencyinpatientswithrecurrentgenitalherpes.
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:Objectiwe:InordertodetecttheroleofmonocytesinHSV-2infection,westudiedtheeffectofherpessim-plexVirus-2infectionontheproductionoftumorne-crosisfactor(TNF-α),interleukin-6(IL-6)secretedbymonocytes.Methods:MonocyteswereinfectedbyHSV-2(333Strain).Culturesupernatantswerecollectedat1,3,5,7dayspost-infection.ThelevelsofTNF-α,IL-6weremeasuredbyenzyme-linkedimmunosorbentas-say(ELISA).Results:ThelevelsofTNF-αsecretionbymono-cytessignificantlydecreasedonfirstdaypost-infection.ThelevelsofIL-6significantlydecreasedonfirstandthirddayspost-infection,andthengradu-allyincreasedtothecontrolonseventhdaypost-infection.Conclusions:TNF-αandIL-6productionbymono-cyteswasinhibitedduringHSV-2infection.Thepro-ductionofcytokinesmayplayanimportantroleinherpessimplexviurs-2pathogenicityandimmunity.
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。
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.