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1、第44卷第4期淡水漁業(yè)2014年7月Vo1.44NO.4FreshwaterFisheriesJu1.2014傳染性胰壞死病毒雙抗體夾心ELISA檢測方法的建立張琳琳,連科迅,張英,蔣燁,姜艷萍,崔文,喬薪瑗,唐麗杰,李一經(jīng),劉敏(1.東北農(nóng)業(yè)大學動物科學與技術學院,哈爾濱150030;2.東北農(nóng)業(yè)大學動物醫(yī)學學院,哈爾濱150030)摘要:以純化的兔抗傳染性胰壞死病病毒(IPNV)VP2重組蛋白多克隆抗體為包被抗體,抗IPNVVP2單克隆抗體為檢測抗體建立了IPNV雙抗體夾心ELISA方法。優(yōu)化反應條件為:兔抗IPNVVP2重組蛋白多克隆抗體包被濃度為1.28mL,抗IPNVVP2單
2、克隆抗體的工作濃度為1.34g/mL,酶標二抗稀釋比例為1:2000,以P/N>2,且OD>0.101494作為陽性判定標準。該方法的重復性變異系數(shù)均小于10%,與傳染性造血器官壞死病毒(IHNV)、病毒性出血敗血癥病毒(VHSV)、鯉春病毒血癥病毒(SVCV)、輪狀病毒(HRV)無交叉反應。對41份虹鱒肝臟樣品分別進行雙抗體夾心ELISA和RT—PCR檢測,結果雙抗體夾心法與RT.PCR法檢測符合率為97%,表明本實驗建立的雙抗體夾心ELISA檢測方法檢測IPNV具有較高的敏感性和特異性,可用于IPNV的病原學檢測。關鍵詞:傳染性胰壞死病毒;雙抗體夾心ELISA檢測方法;單克隆抗體;
3、兔抗血清中圖分類號:$941.41文獻標識碼:A文章編號:1000—6907一(2014)04-0057-06DevelopmentofadoubleantibodysandwichELISAfordetectionofinfectiouspancreaticnecrosisvirusZHANGLin—lin,LIANKe—xun,ZHANGYing,JIANGYe,JIANGYan—ping,CUIWen,QIAOXin—yuan,TANGLi-jie,LIYi-jing,LIUMin(1.CollegeofAnimalScienceandTechnology,NortheastAg
4、riculturalUniversity,Harbin150030,China;2.CollegeofVeterinaryMedicine,rtheastAgriculturalUniversity,rbin150030.ina)Abstract:Adouble—antibodysandwichELISA(DAS—ELISA)wasdevelopedusingpurifiedpolyclonalantibodyandmono—clonalantibody(MAb)againstviralinfectiouspancreaticnecrosisvirus(IPNV)VP'2protein
5、ascaptureanddetectoranti·body,respectively.Theoptimizedreactionconditionsincludedcoatingwith100ixL/wellofpurifiedpolyclonalantibodyatconcentrationof1.28mL,probingwiththeworkingconcentrationof1.34mLIgGfromtheMAbdilutingHRP—conjugatedantibodywiththeproportionof1:2000andjudgingwithP/N>2andOD49o=0.1
6、01494aspositivecriteria.TheDAS—ELISAwasspecificdetectionofIPNV,butnocross—reactionwithIHNV,VHSV,SVCV,HRVandinter—assaycoeficientofvariabilitywerewithin10%.Inaddition,atotalof41liversofrainbowtroutsamplesweretestedbytheI)AS—ELISAandPT—PCR.a(chǎn)ndthecoincidencewas97%betweenDAS.ELISAandPT—PCR.Thesedata
7、demonstratedthattheDAS—ELISAwasspecificandsensitive,andprovidedausefultoolfordiagnosisofIPNVinfection.Keywords:infectiouspancreaticnecrosisvirus;doubleantibodysandwichELISA;MAb;rabbitantisera傳染性胰壞死病病毒(infectiouspancreaticnec