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时间:2019-03-06
《树突状细胞局部免疫抗瘤作用的初步研究》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、临床肿瘤学杂志2009年8月第14卷第8期ChineseClinicalOncology,Aug.2009,Vol.14,No.8·677··论著·树突状细胞局部免疫抗瘤作用的初步研究200052上海复旦大学附属中山医院肿瘤内科123王志明,王天浩,刘天舒,王凯峰【摘要】目的:探讨树突状细胞(DC)瘤内注射的局部免疫方式对小鼠H22肿瘤的治疗效果。方法:体外诱导生成树突状细胞,经H22肿瘤裂解抗原致敏,实验分为对照组、DC组和DC+CpGODN组,分别与T细胞共培养,收获的T细胞与肿瘤细胞共培养,观察其对肿瘤细胞的杀伤。体内试验:B
2、ALB/c小鼠皮下接种H22肿瘤细胞制作成荷瘤鼠,第4天时进行局部瘤内免疫治疗,分为3组:生理盐水组、DC组和DC+CpGODN组,免疫治疗10天后处死小鼠,观察其治疗小鼠H22肿瘤的效果。结果:体外实验中,对照组、DC组和DC+CpGODN组的肿瘤杀伤率分别为(1080±327)%、(3826±560)%和(4266±900)%,后两组杀伤率均高于对照组(P<001);体内实验中,生理盐水组、DC组和DC+CpGODN组的平均瘤重(g)分别为1804±0422、1216±0335和0733±0191(
3、P<001)。结论:DC瘤苗局部瘤内注射可抑制小鼠H22肿瘤的生长,联合应用非甲基化CpGODN可以明显提高抑瘤效果。【关键词】肿瘤;树突状细胞;免疫治疗中图分类号:R73051文献标识码:A文章编号:1009-0460(2009)08-0677-05ThepreliminarystudyofantitumoreffectsinducedbylocalimmunotherapyofdendriticcellsWANGZhiming,WANGTianhao,LIUTianshu,WANGKaifeng.Department
4、ofMedicalOncology,ZhongshanHospital,FudanUniversity,Shanghai200052,ChinaCorrespondingauthor:LIUTianshu,Email:tsliuceu@gmail.com【Abstract】Objective:Toinvestigatetheantitumoreffectsinducedbylocalimmunotherapywithdendriticcells(DCs)injectedintotumorsonamodelofH22carcino
5、mainmice.Methods:DCswereinducedinvitroandthenpulsedwithtumorantigenfromH22carcinomacelllysates.Inthisexperiment,therewere3groups,thecontrolgroup,theDCsgroup,theDCs+CpGODN(nonmethylatedCpGoligonucleotides)group.Forinvitroexperiment,theTcellsweremixedseparatelywithnorm
6、alsolutiongroup,theDCsstimulationgroup,theDCscombinedwithCpGODNstimulationgroup.ThentheTcellswereseparatelyharvestedandtheH22carcinomacellswerecocultured,andtheirkillingactivityonH22carcinomacellsinvitrowereobservedrespectively.Forinvivoexperiment,theallmicewererando
7、mizedin3groupsonthe4thdayafterbeingimplantedwithH22carcinomacells.Inthetumors,normalsolution,theDCsandtheDCscombinedwithCpGODNwereinjected.Onthe10thdayafterlocalimmunotherapy,allthemiceweresacrificedtoevaluatethetumorweights.Results:Fortheinvitroexperiment,thekillingra
8、tewere(1080±327)%,(3826±560)%,(4266±900)%inthethreegroupsrespectively,andtheratesoflatertwogroupswerehig
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