简介：ToinvestigatetheimbalancestateofhelperTlymphocytes(Th)andcytotoxicTlympho-cytes(Tc)andtherolesofTh1/Th2/Th3andTc1/Tc2cellsinrenaltransplantationrejection,theper-centagesofthesecellsinperipheralbloodof24casesofrenaltransplantationrecipientswithacutere-jectionandthedynamicchangesoftheCD4/CD8ratioweredeterminedbyflowcytometryanalysis,while30casesofhealthyindividualsweresetupascontrols.Inthesehealthycontrols,thepercentagesoftheTh1,Th2andTh3cellswere(10.45±8.15)%,(5.05±4.15)%and(3.90±3.21)%,andthoseofTc1andTc2cellswere(9.83±7.03)%and(4.51±2.17)%,respectively.However,thepercentagesofTh1andTclcellsinperipheralbloodofthestablerecipientsaftertransplantationwere(7.29±5.62)%and(7.04±5.15)%,showingdefinitereduction,whilethoseofTh2,Th3andTc2cellsshowedsignificantincrease,(6.34±5.67)%,(4.94±4.14)%and(6.86±4.42)%,respectively.Incaseofrecipientswithacuterejection,thepercentagesofTh1andTc1cellsappearedtobe(18.55±13.21)%and(15.84±11.72)%,alsoshowingsignificantincrease,butthoseofTh2,Th3andTc2cellsappearedtobereduced,(4.19±3.62)%,(3.02±2.83)%and(3.88±1.63)%,respectively.Significantdifferencescouldbedetectedamongthesethreegroups(P<0.05).TheCD4/CD8ratioincaseswithacuterejectionwashigherthanthoseofstablerecipients(2.24±0.59vs1.95±0.45),butthatofthestablerecipientsandhealthycontrols(1.98±0.31)showednoanysignificantdifference.Fromtheaboveobservation,itisevidentthatimbalancebetweenTh1,Th2andTh3withTc1andTc2cellsmayexistafterrenaltransplantationandprobably,theim-muneimbalancemaybeinducedthroughthesecretionofcytokinesINF-γbyTh1orTc1cells,Ⅱ-4byTh2andTc2cellsandTGF-βbyTh3.

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简介：摘要 近几年，由于我国人民生活水平日益提高，物质食品逐渐丰富，大量肥甘厚味的摄入和熬夜与工作带来的压力，导致国民身体亚健康状态也越发严重和普遍。因此我们构建了“九调饮”中医健康管理服务体系，以代茶饮产品为桥梁，通过与互联网相结合的模式，线上线下开展体验式和顾问式健康养生服务，为客户“智造健康生活”。

简介：Thecurrentconceptof“AdoptiveTCellImmunotherapyofCancer”isquitedifferentfromhowitwasoriginallyconceived．Withthedevelopmentofmoderntechnologyinmolecularbiology,cellbiology，immunologyandbiochemistryduringthelasttwentyyearsorso，adoptiveimmunotherapyhasgrownfromitsinitialformofasimple“bloodcelltransfer”intoitspresentprocesswhichinvolveshostvauccination，effectorcellactivation／polarizationandgeneticmodification．Withtheuseofimmuneadjuvantsandtheidentification／characterizationoftumor-reactiveTcellsubsets，orincombinationwithothertherapeuticstrategies，adoptivelytransferredTcellshavebecomemuchmorepotentinmediatingtumorregression．Inaddition，studiesonthetraffickingofinfusedTcells，celltransferperformedinlymphopenicmodels，aswellasthediscoveryofnoveltechniquesinimmunemonitoringforthegenerationofeffectorcellsinvitroandaftercelltransferinvivohaveprovidedusefultoolstofurtherimprovethetherapeuticefficacyofthisapproach．ThisarticlewillreviewtheserelatedaspectsofadoptiveTcellimmunotherapyofcancerwithspecificcommentsoncertaincriticalareasintheapplicationofthisapproach．Withtherapidlyevolvingadvancesinthisarea，itishopedthatthiscellularimmunologictherapyasitwasconceptualizedinthepast，canbecomemoreusefulinthetreatmentofhumancancerinthenearfuture．

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简介：【摘要】目的：探究T细胞检测在结核诊断中的应用效果。方法：随机选取2019年3月至2020年3月我院收治的80例结核病患者作为观察对象，所有患者都分别采用T细胞检测、涂片抗酸染色及聚合酶链式反应荧光探针检测，对所有检测方式的准确率进行观察对比。结果：经过统计后，三种检测方式的准确率各有差异。T细胞检测诊断准确率为93.75%，图片抗酸染色诊断准确率为28.75%，PCR荧光探针检测诊断那准确率为73.75%。可以看出，T细胞检测诊断准确率高于其他种种检测方式，同时PCR荧光探针检测准确率高于涂片抗酸染色检测，其差异具有一定的统计学意义（P

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简介：[摘要]目的 为有效治疗脾胃虚弱病，对患者给予桂枝汤调中焦补益气辨治，并探究其临床疗效。方法 择期纳入2018年6月~2019年6月我院收治的86例脾胃虚弱患者，按照就诊序列号随机分组方法将其分为常规组和改良组，常规组采用四君子汤加味进行常规治疗，改良组采用桂枝汤对患者进行治疗，比较两组疗效。结果 比较治疗后两组患者的临床症状改善情况，改良组的病情好转人数显著多于常规组（P

简介：WehavedevelopedandtestedchimericT-cellreceptors(TCR)specificforp185HER2.Intheseexperiments,retroviralvectorsexpressingtheN297orN29ξreceptorswereconstructedinpRET6.AmphotropicviralproducercellswereestablishedintheGALV-basedPG13packagingcellline.Ficollpurifiedhumanperipheralbloodlymphocytes(PBL)werevitallytransducedusinganoptimizedprotocolincorporatingactivationwithimmobilizedanti-CD3/anti-CD28monoclonalantibodies,followedbyviralinfectioninthepresenceoffibronectinfragmentCH296.Transducedcellswereco-culturedwithhumantumorcelllinesthatoverexpress(SK-OV-3)orunderexpress(MCF7)p185HER2toassayforantigenspecificimmuneresponses.BothCD4^+andCD8^+T-cellstransducedwiththeN297orN29ξchTCRdemonstratedHER2-specificantigenresponses,asdeterminedbyreleaseofTh1likecytokines,andcellularcytotoxicityassays.OurresultssupportthefeasibilityofadoptiveimmunothempywithgeneticallymodifiedT-cellsexpressingachTCRspecificforp185HER2.

简介：TheaimofthisstudyistofindtheexperimentalevidencethattheprecursorfrequencyofalloreactiveCTLsisproportionaltothenumberoftheT-cellepitopespecificities.ThenumberofT-cellepitopespecificitieswasmanipulatedbypulsingdifferentnumberofHLA-A2restrictedpeptide(s)ontotheT2cells,whichactedasstimulatingcellstoelicitallo-reactionbyco-culturingwithperipheralbloodlymphocytes(PBLs)ofHLA-A2negativeindividual.TenHLA-A2restrictedpeptides(allwerenormalcellcomponents)weresynthesized,andcellpeptideextractwaspreparedbyfrozenandthawed.T2cellsloadedwithdifferentnumberofpeptide(s)wereco-culturedwithPBLsofanHLA-A2negativeindividual;thelatterwerestainedwithPKH67inadvance.Thentheproliferationwasmonitoredwithflowcytometry,andtheprecursorfrequencyoftheeffectorcellswasanalyzedbytheModFitSoftware.After6dofculture,noproliferationwasobservedinthebulkcultureofPBLalone,andobviousproliferationtookplacewhenPBLsoftheHLA-A2negativewereco-culturedwithT2cellsloadedwithorwithoutloadingpeptide(s).TheprecursorfrequencyofthealloreactiveCTLswas0.052819forco-culturewithT2cellsloadedwithoutpeptide;howeveritwas0.030429forT2cellswithEBV/LMP2Aand0.030528forT2cellsloadedwithasingleautogeneicpeptide,andincreasedupto0.144942forT2cellsloadedwith10autogeneicpeptides;theprecursorfrequencywas0.203649whenco-culturedwithT2cellsloadedwithmiscellaneouspeptidesextractedfromthecytoplasmofT2cells.ThisstudyrevealsthattheprecursorfrequencyofalloreactiveCTLsisproportionaltothenumberofT-cellepitopespecificities,andindependentofthedensityoftheallogeneicHLAClassⅠmolecule.OurfindingssupportthehypothesisthatthealloreactiveTcellpopulationscomprisemiscellaneousTcellclones;eachisspecifictocorrespondingpMHC.ThenovelconstellationofpeptidespresentedbyallogeneicMHCmoleculesmakesthous

简介：Tostudytheroleofnaturalkiller(NK)cellsinTcellrecruitmentinmurineliverinfectedwithvirus,micewereintravenouslyinjecteddailywithanti-NK1.1^+antibodytodepleteNKcells.Lymphocytesinthelivertissueofmiceinfectedwithtype5adenovirusdepletedintheE1andE3regionswereassessedbyfluorometricactivatedcellsorting(FACS).Ex-pressionofchemokineIP-10anditsreceptorCXCR3mRNAintheliver,hepaticlymphocytesandspleentissuewereexaminedbyreversetranscriptionpolymerasechainreaction(RT-PCR).Serumalmfineaminotransferase(ALT)wasmeasuredasanindicatorofliverinjury.Itwasfoundthatinfectionofadenovimsandanfi-Fasmonoclonalantibody(mAb)intomicecausedliverinjuryandhighexpressionofinterfemn-γinducibleprotein-10(IP-10)mRNAintheliver.Anfi-NK1.1^+mAb,whichwasintraperitoneallyinjectedintothemiceinfectedwithadenovirus,suppressesTcellrecruitmentandexpressionofIP-10mRNAinthehver.Slighterhverinjurywasalsoobserved.Afterviresinfection,expressionofCXCR3mRNAinspleenandhvertissuewasobservedatdifferenttime.TheresultssuggestedthatTcellrecruitmentwasinitiatedbyNKcelldependentchemokineIP-10,whichinducedactivatedTcellspriminginthespleentothehverofthemouse.NKcellsplayedakeyroleinTcellrecruitmentintheliverofmouseinfectedwithadenovims.

简介：摘要 : 目的 ：建立消癌平片标准特征图谱，有效控制产品质量。方法： 以十八烷基硅烷键合硅胶为填充剂（柱长为 25cm，内径为 4.6 mm，粒径为 5µm)为色谱柱；以乙腈为流动相 A，以 0.2%甲酸溶液为流动相 B，进行梯度洗脱；柱温为 30℃；检测波长为 300nm。理论板数按绿原酸峰计算应不低于 90000 。结果： 根据 15批样品特征图谱检测结果，供试品色谱图中呈现 5个特征峰，其中 1个峰应与绿原酸参照物峰保留时间相同，为 S峰，计算各特征峰与 S峰的相对保留时间，均 在规定值的 ±10%以内， 信息基本一致，无明显差别。规定值为： 0.26（峰 1）、 0.65（峰 2）、 1.00（峰 3，即 S峰）、 1.04（峰 4）、 1.08（峰 5）。结论： 该方法稳定可行，重复性好，操作简单，可用于消癌平片的质量控制。

简介：Toinvestigatewhetherestradiol(E2)playsaroleincell-contact-dependentregulatorymechanismofTcellactivation,westudiedtheroleofE2inregulatinggenetranscriptionofCTLA-4,ICOS,B7-1,B7-2andB7hinvitro.ThespleniccellsofnormalfemaleBALB/cmicewereactivatedbyConA.ThenthecellswereculturedwithE2(100pg/mlor50ng/ml)for24hor48h,respectively.ThecellproliferationwasmeasuredbyMTTassayandtheexpressionoftheco-stimulatorymoleculesmRNAwasexaminedbyRT-PCRanalysis.WefoundthatE2(100pg/ml,physiologicallevel)stimulatedtheactivatedspleencellsproliferation;inhibitedCTLA-4,ICOS,TGF-βandIL-10genetranscription;promotedB7-1andB7-2genetranscription.E2(50ng/ml,pregnantlevel)inhibitedtheproliferationoftheactivatedspleniccells;promotedCTLA-4,B7-1,IL-10butinhibitedB7-2andTGF-βgenetranscription.Therefore,weconcludethattheeffectsofE2onTcellactivationarepartiallythroughitsregulationontheco-stimulatorymolecules.Theco-stimulatorymoleculesarecrucialcomponentsofthecell-contactdependentregulatorymechanism,andE2mayregulateTcellactivationbythismechanism.

简介：AbstractToinvestigatetheroleofCD4^+helperT(Th)cellsinthememoryCTL-mediatedanti-tumorimmunity,theRAG-1geneknockoutmicewereadoptivelytransferredwithOT-1cellstogeneratethememoryCTL,theC57B1/6miceimmunizedwiththeepitopepeptideofOVAspecificThcellsandwithdifferentadjuvantswereadopfivelytransferredwiththesememory-CTLs,andthentheanimalswerechallengedwithtumorcellsEGT.ItwasfoundthatalthoughthesimpleimmunizationofmicewiththeepitopepeptideoftheOVAspecificThcellscouldgeneratemoreeffectCTL,butthiseffectwasnotsostrongenoughtoresistcompletelythechallengeswithtumorcells.Nevertheless,thememoryCTL-mediatedanti-tumorimmuneeffectrequiredthehelpsofTh1andTh2cells.Thecross-regulationbetweenThlandTh2cellsseemedtobebeneficialforthehosttogeneratemoreeffectorCTLformountinganefficientanti-tumorresponse.ItconcludedthattheinteractionbetweenThlandTh2cellsmightbemoreimportantthanthesinglesubsetofThcellsinthememoryCTL-mediatedanti-tumorimmuneresponse.Moreattentionshouldbepaidinthisregardforthefuturestudies.

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简介：TheaimofthepresentstudywastodeterminetheefficacyofimmunotherapywithdendriticcellstoelicitEBV-specificCTL-immunityinadvancedcasesofEBV-positivepatientswithnasopharyngealcarcinoma(NPC)andtodeterminethesafetyandtoxicityofthispreparation.NinecasesofhistologicallyconfirmedpatientswithNPCundergoingtreatmentwithradiologicaltherapywereenrolledinthisstudy.Dendriticcells,generatedinvitrofrombloodmonocytesofpatientswereculturedandmaturedwithcytokinesandtheninfectedwithrecombinantadenovirusvaccinecontainingEBV-latentmembraneprotein-2(Ad-LMP2).On9days'cultivationofcells,thematuredDCswereharvested,irradiatedwithCoandtheninjectedintradermallytopatientswithNPC.Theinjectionswereperformed3timestotally.Afterimmunization,theCTLresponseswereassayedbymeansofcytotoxicityandepitope-specificIFN-γproduction.Theresultsofthistrialshowedthatallpatientscouldtoleratethiskindoftreatmentwithoutanysideeffect,duringwhichmarkedincreaseofLMP2-specificCTL-responsescouldbedemonstratedin5patientsofthisgroup.AndthelevelofIgA/VCAantibodydecreasedin8of9patients,thusaccountingforabetterprognosisforthesepatients.Allpatientswillbefollowedupforanotheroneyear.Atleast,thepresentworkshowsthatintradermalvaccinationwithautologousDCsinfectedwithrecombinantAd-LMP2adenovirusisasafeprocedureinNPCpatients,inwhichthisprocedurecanenhancetheLMP2-specificCTLresponsesinpatients.Thesedataareencouragingtodevelopmoreeffectivevaccinestrategiesforthetreatmentofnasopharyngealcarcinoma.