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时间:2019-05-15
《立体定向放疗联合免疫治疗晚期恶性肿瘤进展》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、·1214·中华放射肿瘤学杂志2017年10月第26卷第10期ChinJRadiatOncol,October2017,Vol.26,No.10·综述·立体定向放疗联合免疫治疗晚期恶性肿瘤进展陆意黄闽杰仇建波张占春315000宁波市医疗中心李惠利东部医院肿瘤放疗科DOI:10.3760/cma.j.issn.1004⁃4221.2017.10.022【摘要】晚期肺转移癌或黑素瘤中放疗联合免疫检测点抑制剂,封闭免疫抑制通路,增强抗肿瘤免疫应答,在临床上明显改善生存。体部立体定向放疗大剂量精准照射到肿瘤靶区,最大程度避免周围正常组织损伤,同时
2、还诱导相关细胞因子和免疫分子表达,较常规放疗更能诱导强烈的免疫反应及远隔效应,更适合与免疫联合。已有研究表明总剂量和分割模式是调节放疗免疫反应的重要参数;放疗与免疫序贯时机显著影响疗效,肿瘤浸润淋巴细胞、PD⁃L1表达水平和MMR缺陷可能是预测放疗免疫治疗的重要指标。采用合理的放疗剂量和分割模式,选择最佳序贯时机和有效的预测标记物,SBRT联合免疫可以最大程度激活全身免疫反应,发挥远隔效应协同作用晚期恶性肿瘤。【关键词】立体定向放射疗法;免疫疗法;恶性肿瘤基金项目:CSCO⁃默克雪兰诺肿瘤研究基金(Y⁃MX2016⁃063)Progres
3、sinstereotacticbodyradiationtherapycombinedwithimmunotherapyforadvancedmalignanciesLuYi,HuangMinjie,QiuJianbo,ZhangZhanchunDepartmentofRadiationoncology,NingboMedicalCenterLihuiliEasternHospital,Ningbo315000,China【Abstract】Foradvancedpulmonarymetastasesormelanoma,radiothe
4、rapycombinedwithimmunecheckpointinhibitorcanblocktheimmunosuppressionpathway,enhancetheantitumorimmuneresponse,andsignificantlyimprovesurvival.Stereotacticbodyradiationtherapy(SBRT)deliversalargedoseofradiationtothetumortargetwithhighprecisionwhilesparingirradiationofthes
5、urroundingnormaltissues.ItissuggestedthatSBRTcouldbethemostappropriateradiotherapymodalitytobecombinedwithimmunotherapysinceitinducestheexpressionofaseriesofcytokinesandimmunemoleculesandismorelikelytocauseintenseimmuneresponseandexertanabscopaleffectthanconventionalradio
6、therapy.Previousstudieshaveexploredthattotaldoseandfractionationseemtobeimportantparametersfordeterminingtheimmuneresponse;thetimingofradiationwithimmunotherapysignificantlyinfluencestheoutcome,andtumorinfiltratinglymphocytes,theexpressionlevelofprogrammeddeath⁃ligand1,an
7、dmismatchrepairdefectmaybeimportantpredicatorsoftheoutcome.Withappropriateradiotherapydoseandfractionation,theoptimaltimingofradiationwithimmunotherapy,andeffectivepredictivemarkers,acombinationofSBRTandimmunotherapymayeliminateadvancedmalignancieswhileactivatingthesystem
8、icimmuneresponsetoexertanabscopaleffect.【Keywords】Stereotacticbodyradiationtherapy;Immunotherapy
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