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时间:2018-12-05
《医学毕业论文沙利度胺对人外周血单个核细胞免疫正调控作用》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、沙利度胺对人外周血单个核细胞免疫正调控作用姓名:2014年6月25日沙利度胺对人外周血单个核细胞免疫正调控作用作者:杨云张王刚陈银霞曹星梅何爱丽杨惠云田玮【摘要】本研究观察沙利度胺对外周血单个核细胞(PBMNC)增殖、淋巴细胞亚群、细胞因子分泌及其杀伤活性的影响,探讨沙利度胺治疗MM的免疫调节机理。用MTT法检测PBMNC的增殖及杀伤活•性,用流式细胞术检测淋巴细胞亚群的变化,用ELISA方法检测培养上清中细胞因子的浓度。结果表明:与阴性对照组相比,沙利度胺可明显刺激正常人PBMNC屮CD8+T、NK细胞的增殖,显著增加IL-6的分泌,减少IFN-y的分泌,不影响IL-2
2、、IL-10的分泌;在同一效靶比时,5明/ml的沙利度胺可明显增强PBMNC的杀伤活性(P0.01),效靶比为40:1时沙利度胺组杀伤活性最强。结论:沙利度胺主要刺激PHA活化后的正常人PBMNC中CD8+T、NK细胞的增殖及IL-6的分泌来增强PBMNC的系伤活性,通过增强细胞免疫功能发挥抗骨髓瘤作用。【关键词】沙利度胺多发性骨髓瘤免疫调节抗肿瘤免疫PositiveImmunoregulationofThalidomideonHumanPeripheralBloodMononuclearCellCulturesAbstractThisstudywaspurposedto
3、investigatetheeffectsofthalidomideonproliferationofperipheralbloodmononuclearcells(PBMNCs),levelsoflymphocytesubsets,secretionofcytokinesanditskillingactivity,andtoelucidatetheimmnoregulationmechanisunsintreatmentofmultiplemyelomawiththalidomide.ThemethodofMTTwasusedtodetecttheeffectsofth
4、alidomideontheproliferationsandthecytotoxicactivityofPBMNC;theflowcytometerwasusedtoanalyzethelymphocytesubsets;theELISAwasusedtomeasuretheconcentrationsofcytokinesinculturesupernatants.TheresultsshowedthatthalidomideenhancedtheproliferationsoftheCD8+T,NKcellsinPHA-stimulatcdPBMNCfromheal
5、thyvolunteers,increasedthesecretionofIL-6significantly,anddecreasedthesecretionofIFN-y,andthesecretionsofIL-2andIL-10werenotaffected.Comparedwithcontrolgroup,atthesameratioofeffectorstotargetsthethalidomide(5pg/ml)couldenhancethecytotoxicactivityofPBMNC(P0.01),thecytotoxicactivitywasmaxim
6、alwhentheratioofeffectorstotargetswas40I1.ItisconcludedthatthalidomidepreferentiallyenhancestheproliferationsofCD8+T,NKcellsinPHA-stimulatedPBMNCfromhealthyvolunteers,andenhancesthecytotoxicactivityofPBMNCbyincreasingthesecretionofIL-6significantly,inshort,thalidomidecanexertanti-myelomae
7、ffectsbyincreasingcellularimmunefunction.KeywordsThalidomide;Multiplemyeloma;Immunoregulation;Anti-tumorimmunity多发性骨髓瘤(MM)的治疗H前仍是世界性难题,临床上缺乏理想的治疗方法。自从Singhal等[1]1999年将沙利度胺用于MM的治疗取得显著疗效以來,已进行的多个临床试验结果显示,沙利度胺对MM有肯定的作用,约32%-64%的患者可获得疗效,而且副作用小、使用方便、费用小,是临床上安全、有效、经济的治疗MM
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