Induction of cytotoxic T lymphocyte respones in vivo after immunotherapy with dendritic cells in patients with nasopharyngeal carcinoma-中国期刊网

摘要 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.

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Induction of cytotoxic T lymphocyte respones in vivo after immunotherapy with dendritic cells in patients with nasopharyngeal carcinoma

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Induction of cytotoxic T lymphocyte respones in vivo after immunotherapy with dendritic cells in patients with nasopharyngeal carcinoma

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