Interleukin 17-Producing γδ T Cells Increased in Patients with Active Pulmonary Tuberculosis-中国期刊网

摘要 AlthoughithasbeenknownthatγδTcellsmayplayanimportantroleintheimmuneresponsetoinfectionofMycobacteriumtuberculosis(M.tb),themechanismsbywhichtheγδTcellsparticipateintheinnateand/oracquiredimmunitytotuberculosis(TB)havenotbeenfullelucidated.Inthepresentstudy,27patientswithactivepulmonaryTBand16healthydonors(HD)wereperformed.WefoundthatproportionofIL-17-producingcellsamonglymphocytewassimilarbetweenTBpatientsandHD,whereastheproportionsofγδTcellsinIL-17-producingcells(59.2%)andIL-17-producingcellsinγδTcells(19.4%)inperipheralbloodweremarkedlyincreasedinTBpatientswhencomparedtothoseinHD(43.9%and7.7%,respectively).Inaddition,theproportionsofIFN-γ-producingγδTcellsinTBpatientswereobviouslylowerthanthatinHD.Uponre-stimulatedwithM.tbheat-treatedantigen(M.tb-HAg)invitro,fewerIL-17-producingγδTcellsweregeneratedfromHDandTBpatients,whereasIFN-γ-producingγδTcellswereincreasedinTBpatientscomparedtothatinHD.OurfindingsinTBpatientsandhealthyhumanwereconsistentwithothermurineinvestigationthattheIL-17-producingγδTcellsweremainsourceofIL-17inmousemodelofBCGinfection,suggestingthatγδTcellsmightbeinvolvedintheformationoftuberculargranulomainpulmonaryTBpatients,butneedfurtheridentification.

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Interleukin 17-Producing γδ T Cells Increased in Patients with Active Pulmonary Tuberculosis

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Interleukin 17-Producing γδ T Cells Increased in Patients with Active Pulmonary Tuberculosis

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