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时间:2018-09-02
《结肠癌根治术后腹腔热化疗对T淋巴细胞亚群及细胞因子的影响.doc》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、结肠癌根治术后腹腔热化疗对T淋巴细胞亚群及细胞因子的影响作者:胡敏超方万强余健雄吴瑞景付春利【摘要】目的:探讨腹腔热化学治疗对机体细胞免疫水平的影响。方法:将135例结肠癌根治性切除术后分为A,B两组治疗。A组65例,采用卡铂、5Fu以及丝裂霉素分次溶入加热至45~50℃的生理盐水中腹腔注射;B组65例将上述化疗药物溶入常温生理盐水中腹腔注射,C组62例为健康正常对照组且未行腹腔灌注化疗。分别观察3组病例外周血T淋巴细胞亚群和细胞因子(IL4与IFNγ)的变化。结果:A组热化疗后15d时,CD4+水平较术后第7天明显增加(t=2.32,P≤0.05),CD
2、8+水平明显低于B组同期水平(t=3.00,P≤0.05),IL4水平较术后第7天明显下降(t=2.65,P≤0.05),而IFNr水平明显增加(t=2.70,P≤0.05)。CD4+百分比与IFNr水平正相关,CD8+百分比与IL4水平正相关。结论:结肠癌根治性切除术后热化疗,在杀灭肿瘤细胞的同时,可诱导机体产生抗肿瘤的细胞免疫应答。【关键词】结肠肿瘤热疗;化学治疗;细胞免疫AbstractObjective:ToinvestigatetheeffectofintraperitonealthermochemotherapyonTlymphocytes
3、ubsetsandcytokineafterradicalresectionofcoloncancer.Methods:Atotalof135casesofcoloncancerweredividedintogroupAandB.GroupA(65cases)weretreatedwithcarboplatin,5Fuandmitomycinwhichweredissolvedrespectivelywith45℃50℃normalsalineandinjectedintoabdomencavityafterradicalresection,andGroup
4、Bweretreatedwithabovementioneddrugswhichweresolutedwithnormalsalineofnormaltemperatureandinjectedintotheabdominalcavityafterradicalresection.Andtherewere62casesofhealthyindividualsascontrol(groupC).ThelevelofTlymphocytesubsetsandcytokinewereexploredinthesegroups.Results:IngroupAat15
5、dayafterthermochemotherapy,thelevelofCD4+Tlymphocytesubsetsincreasedsignificantly(t=2.32,P≤0.05),CD4+Tlymphocytesubsetsdecreasedsignificantly(t=3.00,P≤0.05),thelevelofIL4decreased(t=2.65,P≤0.05)butIFNrincreasedsignificantly(t=2.70,P≤0.05).ThepercentageofCD4+Tlymphocytesubsetswas
6、positivelycoherentwiththelevelofIFNr,andsowasthepercentageofCD8+TlymphocytesubsetswiththelevelofIL4.Conclusion:Intraperitonealthermochemotherapyafterradicalresectionofcoloncancercannotonlyeradicatedisseminatedtumorcellsinabdomenbutalsoinducetumorspecificcellularimmunity.6Keywords
7、Colonneoplasm;Thermotherapy;Chemotherapy;Cellularimmunity结肠癌浸润浆膜层后往往发生肉眼或镜下的腹膜播散种植,而结肠癌的门静脉转移甚至可发生DukesA期,结肠癌腹膜播散种植和肝转移是术后复发和转移的重要原因,即使采用D4廓清手术都不能清除潜在的癌细胞腹膜和门静脉播散[1~5]。恶性肿瘤对高温的耐受性差,热疗可促使肿瘤细胞坏死、促使肿瘤细胞相关抗原的暴露以及提升肿瘤细胞对化疗药物的敏感性,这是腹腔热化疗的理论依据之一[6,7]。近年来许多研究证明,腹腔热灌注化疗能明显减少结肠癌腹腔内种植和肝转移[8,9],
8、但是腹腔热化疗对机体免疫
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