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时间:2020-05-14
《抗人CA50单克隆抗体的制备、鉴定及其应用.pdf》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、110田胞与分子免疫学杂志(ChinJCellMolImmuno1)2015,31(1·论著·文章编号:1007—8738(2015)01—0ll0—04抗人CA50单克隆抗体的制备、鉴定及其应用蓝兴国,一,冯胡一,魏德强一,李玉花,。(东北林业大学生命科学学院,黑龙江哈尔滨150040;大庆麦伯康生物技术有限公司,黑龙江大庆163316;东北林业大学大庆生物技术研究院,黑龙江大庆163316)[摘要]目的制备抗人糖抗原5O(CA50)单克隆抗体(mAb),鉴定其免疫学特性并建立化学发光免疫分析法检测体系。方法将人CA50抗原免疫BALB/e小鼠,利用杂
2、交瘤技术进行细胞融合,筛选后得到稳定分泌抗CA50抗体的杂交瘤细胞株。经细胞扩大培养及纯化获得mAb后,建立化学发光免疫分析法检测体系,并对其线性范围、准确度、灵敏度、重复性进行评估,同时进行血样的测定。结果筛选出4株抗人CA50的杂交瘤细胞株,效价均在1:10以上,2株配对抗体不与CA125、CA153、CA199、CA724交叉。建立的化学发光免疫分析法检测范围为0~500U/mL,回收率为107.08%,灵敏度为0.83U/mL,重复性CV值<1O%,与参比试剂检测血样的结果比较符合率为96.7%,Kappa值为0.911。结论成功制备了抗人CAS
3、0mAb,建立了人CAS0的化学发光免疫分析法检测体系。[关键词]CAS0;单克隆抗体;化学发光免疫分析法[中图分类号]R392.11,R446.61,Q813.2[文献标志码】BPreparationandcharacterizationofmonoclonalantibodiesagainsthumanCA50andestablishmentofchemiluminescenceimmunoassaysystemLANXingguo,一,FENGYue一,WETDeqiang一,LIYuhua·。CollegeofLifeSciences,North
4、eastForestryUniversity,Harbin150040;DaqingMabCom.Ine,Daqing163316;DaqingBiotechnologyResearchInstitute,NortheastForestryUniversity,Daqing163316,China[Abstract]ObjectiveTopreparetheanti-humancarbohydrateantigen5o(cA5o)monoclonalantibody(mAb),charactedzeitsimmunologicalfeaturesande
5、stablishachemiluminescenceimmunoassaysystemwithit.MethodsBALB/cmicewereimmunizedwithhumanCAS0antigenforpreparingmAbusinghybridomatechnique.Stableanti-CA50-secretinghybridomacelllineswereobtainedafterscreening.ThemAbswerepudfiedusingproteinAafterexpandingculture.Theimmunoassaysyst
6、emwasestablishedandevaluatedinitslinearrange,accuracy,sensitivity,reproducibility,andthebloodsamplesweretestedwithit.ResultsFourhybridomacelllineswereobtainedrespectivelyandtheirtiterswereabove1:10.Ant_-C6OmAbsnearlyhadnocross.reactionwithCA125.CA153。CA199andCA724.TheIineardetect
7、ionofthechemiluminescenceimmunoassaysystemcoveredarange0—500U/mL.Therecoveryrateforaccuracywas107.O8%anditssensitivitywas0.83U/mL_Theassaywashighlyrepeatable[coeficientofvariation(CV)<10%].Thecorrelationcoeficientwiththetestofreferencereagentwas0。96.ConclusionThemonoclonaIantibod
8、iesagainsthumanC:芦60hadbeenscreenedandac
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