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《人源化抗肝癌双链抗体纳米颗粒对荷人肝癌裸鼠放射免疫显像研究-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、实用肝脏病杂志2014年1月第17卷第2期J№Hepotol,Mar.2014.Vo1.17No.2·159··肝细胞癌·人源化抗肝癌双链抗体纳米颗粒对荷人肝癌裸鼠放射免疫显像研究别彩群,梁旭竞,汤绍辉,李萌,孙士敏,范红梅【摘要】目的观察r标记的人源化抗肝癌双链抗体BDM3及双链抗体纳米颗粒在荷肝癌动物体内的靶向分布及放射免疫显像,探讨其对肝癌的靶向诊断和治疗的价值。方法使用对人源化抗肝癌双链抗体BDM3及双链抗体纳米颗粒进行标记,并测定标记率,将标记好的抗体及抗体纳米颗粒经腹腔注人荷瘤裸鼠体内,在注射后不同时间点进行放射免疫显像。取各脏器及肿瘤组织,计算肿瘤
2、/非肿瘤比值。结果叩c标记的双链抗体BDM3和双链抗体纳米颗粒标记率为91%和92%,显像率均达100%。注射后1h肿瘤/血比值为(1.634-0.17)和(3.63±0.21),4h肿瘤/血比值为(3.82±0.24)和(5.63±0.26),8h肿瘤/血比值为(0.48±0.21)和(1.41±0.32),两组比较,差异均有统计学意义(P<0.O1,P<0.001和P3、一步增加显像效果。结论嘞r1rc标记的双链抗体BDM3及其纳米颗粒对肝癌组织具有很好的亲和力,可作为肝癌诊断和治疗的靶向载体。【关键词】肝癌;c标记;免疫纳米颗粒;放射免疫显像DOI:10.3969~.issn.1672-5069.2014.02.012Radioimmunoimagingof99mTclabeHedhumanizedsingle—’chainFvdimersandimmunonanopartidesforhepatocellularcarcinomainnudemiceBieCaiqun,LiangXujing,TangShaohui,eta14、.DepartmentofGastroeriterology,AfiliatedShyingHospital,GuangzhouMedicalUniversity,Shenzhen518104,P.R.China【Abstract】objectiveToinvestigatetheradioimmun0imagingof99mTclabelledhumanizedsingle—chainFvdimmers(BDM3)andimmunonanoparticlesforhepatocellularcarcinomainnudemicebeatinghumanhepa5、toeellu—larcarcinoma,andtostudytheirapplicationindiagnosisandtherapyofhepatocellularcarcinoma.MethodsThelabelrateof99,rFc—BDM3and99~Fc—BDM3nanoparticleswasdeterminedbyisotopicanalyzer.ThelabelledBDM3andBDM3nanoparticleswereinjectedintraperitoneallyintothenudemicebeatinghumanhepatoeel6、lularcarcino-ma.Atintervalsof1h,4hand8h,themiceineachgroupwereimagedonaSPECT,andthenweresacrificedimmediatelytogetvatiousorgansandtumors.Radioactivityratiooftumortonon—tumor(T/NT)wasmeasured.ResultsThelabelratesofTc—BDM3and~Te-BDM3nanoparticlewere91%and92%,respectively;Th。posi—tivedi7、splayratesbytheantibodyanditsnanopartielewereboth100%;TheratioofT/NTwere(1.63-+0.17)and(3.63_+0.21)1h,(3.82+0.24)and(5.63_+0.26)4h,(0.48+0.21)and(1.41±0.32)8hafterinjeetionof99mTc-BDM3and99~Te-BDM3nanopartiele,respectively.Thediferencesbetweentwogroupswerestatisticalsig-nificance;Fav8、orableimages
3、一步增加显像效果。结论嘞r1rc标记的双链抗体BDM3及其纳米颗粒对肝癌组织具有很好的亲和力,可作为肝癌诊断和治疗的靶向载体。【关键词】肝癌;c标记;免疫纳米颗粒;放射免疫显像DOI:10.3969~.issn.1672-5069.2014.02.012Radioimmunoimagingof99mTclabeHedhumanizedsingle—’chainFvdimersandimmunonanopartidesforhepatocellularcarcinomainnudemiceBieCaiqun,LiangXujing,TangShaohui,eta1
4、.DepartmentofGastroeriterology,AfiliatedShyingHospital,GuangzhouMedicalUniversity,Shenzhen518104,P.R.China【Abstract】objectiveToinvestigatetheradioimmun0imagingof99mTclabelledhumanizedsingle—chainFvdimmers(BDM3)andimmunonanoparticlesforhepatocellularcarcinomainnudemicebeatinghumanhepa
5、toeellu—larcarcinoma,andtostudytheirapplicationindiagnosisandtherapyofhepatocellularcarcinoma.MethodsThelabelrateof99,rFc—BDM3and99~Fc—BDM3nanoparticleswasdeterminedbyisotopicanalyzer.ThelabelledBDM3andBDM3nanoparticleswereinjectedintraperitoneallyintothenudemicebeatinghumanhepatoeel
6、lularcarcino-ma.Atintervalsof1h,4hand8h,themiceineachgroupwereimagedonaSPECT,andthenweresacrificedimmediatelytogetvatiousorgansandtumors.Radioactivityratiooftumortonon—tumor(T/NT)wasmeasured.ResultsThelabelratesofTc—BDM3and~Te-BDM3nanoparticlewere91%and92%,respectively;Th。posi—tivedi
7、splayratesbytheantibodyanditsnanopartielewereboth100%;TheratioofT/NTwere(1.63-+0.17)and(3.63_+0.21)1h,(3.82+0.24)and(5.63_+0.26)4h,(0.48+0.21)and(1.41±0.32)8hafterinjeetionof99mTc-BDM3and99~Te-BDM3nanopartiele,respectively.Thediferencesbetweentwogroupswerestatisticalsig-nificance;Fav
8、orableimages
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