目的评价重组表达的轮状病毒(R V)抗原表位疫苗的小鼠体内保护效果及安全性。方法在以FlockH ouse virus病毒外壳蛋白为载体的外源抗原表位呈递系统(FH V-R NA2系统)中构建和重组表达R V V p4蛋白上第223～262位抗原表位(R EA BC)在原...目的评价重组表达的轮状病毒(R V)抗原表位疫苗的小鼠体内保护效果及安全性。方法在以FlockH ouse virus病毒外壳蛋白为载体的外源抗原表位呈递系统(FH V-R NA2系统)中构建和重组表达R V V p4蛋白上第223～262位抗原表位(R EA BC)在原核系统犤;质粒pET,大肠杆菌BL21(D E3)犦中表达的REABC免疫小鼠用细胞培养适应的参照RV W a(G1PA型)和SA11(G3P2型)经口腔灌胃攻击,对R V攻击后的免疫小鼠和对照小鼠的感染症状、排毒情况、血清抗体中和病毒感染性效价进行测定和分析。结果R EA BC可诱导免疫小鼠产生较强的抗-W a和抗-SA11株血清中和抗体和特异的免疫记忆反应,有效保护免疫小鼠对W a和SA11的攻击(不腹泻),减少病毒在体内复制水平和排毒时间,与对照组相比差异具有显著性(P<0.001)。结论重组表达RV抗原表位REABC对小鼠具有较好的免疫保护效果和安全性。展开更多
BALB/c mice were immunized using synthetic tandem polypeptide of Cap protein epitope of porcine circovirus type 2 （PCV2） as the antigen. By using lym-phocyte hybridoma technique, a hybridoma cellline stably secretin...BALB/c mice were immunized using synthetic tandem polypeptide of Cap protein epitope of porcine circovirus type 2 （PCV2） as the antigen. By using lym-phocyte hybridoma technique, a hybridoma cellline stably secreting monoclonal an-tibody against PCV2-rCap protein was successful y obtained and named as 670#. The ascites titer of the obtained monoclonal antibody was 1∶100 000. Western blot results showed that the monoclonal antibody could react with prokaryotical y ex-pressed PET32a-ORF2 recombinant protein, eukaryotical y expressed ORF1-ORF2 tandem protein and PCV2 whole virus celllysate. Indirect EILSA demonstrated that the monoclonal antibody could bind with ORF1-ORF2 tandem protein. Indirect im-munofluorescence assay （IFA） indicated that the monoclonal antibody could identify native PCV2 virus. The preparation of this monoclonal antibody provided technical tools for epitope analysis and molecular diagnosis of PCV2 virus.展开更多
Let { E i∶i∈I } be a family of Archimedean Riesz algebras.The product of Riesz algebras is denoted by Π i∈I E i .The main result in this paper is the following conclusion:there ...Let { E i∶i∈I } be a family of Archimedean Riesz algebras.The product of Riesz algebras is denoted by Π i∈I E i .The main result in this paper is the following conclusion:there exists a completely regular Hausdorff space X such that Π i∈I E i is Riesz algebra isomorphic to C(X) if and only if for every i∈I there exists a completely regular Hausdorff space X i such that E i is Riesz algebra isomorphic to C(X i) .展开更多
文摘目的评价重组表达的轮状病毒(R V)抗原表位疫苗的小鼠体内保护效果及安全性。方法在以FlockH ouse virus病毒外壳蛋白为载体的外源抗原表位呈递系统(FH V-R NA2系统)中构建和重组表达R V V p4蛋白上第223～262位抗原表位(R EA BC)在原核系统犤;质粒pET,大肠杆菌BL21(D E3)犦中表达的REABC免疫小鼠用细胞培养适应的参照RV W a(G1PA型)和SA11(G3P2型)经口腔灌胃攻击,对R V攻击后的免疫小鼠和对照小鼠的感染症状、排毒情况、血清抗体中和病毒感染性效价进行测定和分析。结果R EA BC可诱导免疫小鼠产生较强的抗-W a和抗-SA11株血清中和抗体和特异的免疫记忆反应,有效保护免疫小鼠对W a和SA11的攻击(不腹泻),减少病毒在体内复制水平和排毒时间,与对照组相比差异具有显著性(P<0.001)。结论重组表达RV抗原表位REABC对小鼠具有较好的免疫保护效果和安全性。
基金Supported by National Natural Science Foundation of China(31302071)AgriculturalScience and Technology Independent Innovation Fund of Jiangsu Province(TechnicalInnovation)[CX(13)3065]~~
文摘BALB/c mice were immunized using synthetic tandem polypeptide of Cap protein epitope of porcine circovirus type 2 （PCV2） as the antigen. By using lym-phocyte hybridoma technique, a hybridoma cellline stably secreting monoclonal an-tibody against PCV2-rCap protein was successful y obtained and named as 670#. The ascites titer of the obtained monoclonal antibody was 1∶100 000. Western blot results showed that the monoclonal antibody could react with prokaryotical y ex-pressed PET32a-ORF2 recombinant protein, eukaryotical y expressed ORF1-ORF2 tandem protein and PCV2 whole virus celllysate. Indirect EILSA demonstrated that the monoclonal antibody could bind with ORF1-ORF2 tandem protein. Indirect im-munofluorescence assay （IFA） indicated that the monoclonal antibody could identify native PCV2 virus. The preparation of this monoclonal antibody provided technical tools for epitope analysis and molecular diagnosis of PCV2 virus.
文摘Let { E i∶i∈I } be a family of Archimedean Riesz algebras.The product of Riesz algebras is denoted by Π i∈I E i .The main result in this paper is the following conclusion:there exists a completely regular Hausdorff space X such that Π i∈I E i is Riesz algebra isomorphic to C(X) if and only if for every i∈I there exists a completely regular Hausdorff space X i such that E i is Riesz algebra isomorphic to C(X i) .
