Chimeric infectious DNA clones, chimeric porcine circoviruses and uses thereof
    5.
    发明授权
    Chimeric infectious DNA clones, chimeric porcine circoviruses and uses thereof 有权
    嵌合感染性DNA克隆,嵌合型猪圆环病毒及其用途

    公开(公告)号:US07276353B2

    公开(公告)日:2007-10-02

    申请号:US10314512

    申请日:2002-12-09

    IPC分类号: C12N15/09 A61K39/12

    摘要: The present invention relates to infectious DNA clones, infectious chimeric DNA clones of porcine circovirus (PCV), vaccines and means of protecting pigs against viral infection or postweaning multisystemic wasting syndrome (PMWS) caused by PCV2. The new chimeric infectious DNA clone and its derived, avirulent chimeric virus are constructed from the nonpathogenic PCV1 in which the immunogenic ORF gene of the pathogenic PCV2 replaces a gene of the nonpathogenic PCV1, preferably in the same position. The chimeric virus advantageously retains the nonpathogenic phenotype of PCV1 but elicits specific immune responses against the pathogenic PCV2. The invention further embraces the immunogenic polypeptide expression products.

    摘要翻译: 本发明涉及感染性DNA克隆,猪圆环病毒感染性嵌合DNA克隆(PCV),疫苗和保护猪免受病毒感染或PCV2引起的断奶后多系统消耗综合征(PMWS)的方法。 新的嵌合感染性DNA克隆及其衍生的无毒性嵌合病毒由非致病性PCV1构建,其中致病性PCV2的免疫原性ORF基因替代非致病性PCV1的基因,优选在相同的位置。 嵌合病毒有利地保留了PCV1的非病原性表型,但引发针对致病性PCV2的特异性免疫应答。 本发明还包括免疫原性多肽表达产物。

    CHIMERIC INFECTIOUS DNA CLONES, CHIMERIC PORCINE CIRCOVIRUSES AND USES THEREOF
    7.
    发明申请
    CHIMERIC INFECTIOUS DNA CLONES, CHIMERIC PORCINE CIRCOVIRUSES AND USES THEREOF 有权
    CHIMERIC感染性DNA克隆及其用途及其用途

    公开(公告)号:US20100055122A1

    公开(公告)日:2010-03-04

    申请号:US12539540

    申请日:2009-08-11

    IPC分类号: A61K39/12 C12N15/63 C07H21/04

    摘要: The present invention relates to infectious DNA clones, infectious chimeric DNA clones of porcine circovirus (PCV), vaccines and means of protecting pigs against viral infection or postweaning multisystemic wasting syndrome (PMWS) caused by PCV2, The new chimeric infectious DNA clone and its derived, avirulent chimeric virus are constructed from the nonpathogenic PCV1 in which the immunogenic ORF gene of the pathogenic PCV2 replaces a gene of the nonpathogenic PCV1, preferably in the same position. The chimeric virus advantageously retains the nonpathogenic phenotype of PCV1 but elicits specific immune responses against the pathogenic PCV2. The invention further embraces the immunogenic polypeptide expression products. In addition, the invention encompasses two mutations in the PCV2 immunogenic capsid gene and protein, and the introduction of the ORF2 mutations in the chimeric clones.

    摘要翻译: 本发明涉及感染性DNA克隆,猪圆环病毒感染性嵌合DNA克隆(PCV),疫苗和保护猪免受PCV2引起的病毒感染或断奶后多系统消耗综合征(PMWS)的手段。新的嵌合感染性DNA克隆及其衍生 ,无病毒嵌合病毒由非致病性PCV1构建,其中致病性PCV2的免疫原性ORF基因替代非致病性PCV1的基因,优选在相同的位置。 嵌合病毒有利地保留了PCV1的非病原性表型,但引发针对致病性PCV2的特异性免疫应答。 本发明还包括免疫原性多肽表达产物。 此外,本发明包括PCV2免疫原性衣壳蛋白基因和蛋白质中的两个突变,以及在嵌合克隆中引入ORF2突变。

    Chimeric infectious DNA clones, chimeric porcine circoviruses and uses thereof
    8.
    发明申请
    Chimeric infectious DNA clones, chimeric porcine circoviruses and uses thereof 有权
    嵌合感染性DNA克隆,嵌合型猪圆环病毒及其用途

    公开(公告)号:US20080226666A1

    公开(公告)日:2008-09-18

    申请号:US11893182

    申请日:2007-08-15

    摘要: The present invention relates to infectious DNA clones, infectious chimeric DNA clones of porcine circovirus (PCV), vaccines and means of protecting pigs against viral infection or postweaning multisystemic wasting syndrome (PMWS) caused by PCV2. The new chimeric infectious DNA clone and its derived, avirulent chimeric virus are constructed from the nonpathogenic PCV1 in which the immunogenic ORF gene of the pathogenic PCV2 replaces a gene of the nonpathogenic PCV1, preferably in the same position. The chimeric virus advantageously retains the nonpathogenic phenotype of PCV1 but elicits specific immune responses against the pathogenic PCV2. The invention further embraces the immunogenic polypeptide expression products. In addition, the invention encompasses two mutations in the PCV2 immunogenic capsid gene and protein, and the introduction of the ORF2 mutations in the chimeric clones.

    摘要翻译: 本发明涉及感染性DNA克隆,猪圆环病毒感染性嵌合DNA克隆(PCV),疫苗和保护猪免受病毒感染或PCV2引起的断奶后多系统消耗综合征(PMWS)的方法。 新的嵌合感染性DNA克隆及其衍生的无毒性嵌合病毒由非致病性PCV1构建,其中病原性PCV2的免疫原性ORF基因替代非致病性PCV1的基因,优选在相同的位置。 嵌合病毒有利地保留了PCV1的非病原性表型,但引发针对致病性PCV2的特异性免疫应答。 本发明还包括免疫原性多肽表达产物。 此外,本发明包括PCV2免疫原性衣壳蛋白基因和蛋白质中的两个突变,以及在嵌合克隆中引入ORF2突变。

    Differential PCR-RFLP assay for detecting and distinguishing between nonpathogenic PCV-1 and pathogenic PCV-2
    9.
    发明申请
    Differential PCR-RFLP assay for detecting and distinguishing between nonpathogenic PCV-1 and pathogenic PCV-2 审中-公开
    差异PCR-RFLP检测和鉴别非致病性PCV-1与致病性PCV-2

    公开(公告)号:US20050147966A1

    公开(公告)日:2005-07-07

    申请号:US11040447

    申请日:2005-01-21

    CPC分类号: C12Q1/701 C12Q1/683

    摘要: The present invention relates to a method for detecting and differentiating PCV infections in a biological sample taken from a pig which involves amplifying a fragment from an extracted nucleic acid; digesting the fragment with a suitable restriction enzyme such as the unique NcoI restriction enzyme; forming a restriction fragment length polymorphism pattern; and then detecting the presence or absence of a PCV isolate. The invention further concerns the new oligonucleotide primers for differentiating PCV infections comprising a nucleotide sequence selected from the group consisting of MCV1 having a nucleotide sequence set forth in SEQ ID NO:1 and MCV2 having a nucleotide sequence set forth in SEQ ID NO:2. Moreover, this invention provides a novel kit for detecting and distinguishing PCV infections that includes the new oligonucleotide primers and the suitable restriction enzyme.

    摘要翻译: 本发明涉及一种用于检测和分化取自猪的生物样品中的PCV感染的方法,其涉及从提取的核酸扩增片段; 用合适的限制酶如独特的NcoI限制酶消化片段; 形成限制性片段长度多态性模式; 然后检测PCV分离物的存在或不存在。 本发明还涉及用于分化PCV感染的新的寡核苷酸引物,其包含选自具有SEQ ID NO:1所示核苷酸序列的MCV1和具有SEQ ID NO:2所示核苷酸序列的MCV2的核苷酸序列。 此外,本发明提供了用于检测和鉴别PCV感染的新型试剂盒,其包括新的寡核苷酸引物和合适的限制酶。

    Chimeric infectious DNA clones, chimeric porcine circoviruses and uses thereof

    公开(公告)号:US10507238B2

    公开(公告)日:2019-12-17

    申请号:US15875892

    申请日:2018-01-19

    摘要: The present invention relates to infectious DNA clones, infectious chimeric DNA clones of porcine circovirus (PCV), vaccines and means of protecting pigs against viral infection or postweaning multisystemic wasting syndrome (PMWS) caused by PCV2. The new chimeric infectious DNA clone and its derived, avirulent chimeric virus are constructed from the nonpathogenic PCV1 in which the immunogenic ORF gene of the pathogenic PCV2 replaces a gene of the nonpathogenic PCV1, preferably in the same position. The chimeric virus advantageously retains the nonpathogenic phenotype of PCV1 but elicits specific immune responses against the pathogenic PCV2. The invention further embraces the immunogenic polypeptide expression products. In addition, the invention encompasses two mutations in the PCV2 immunogenic capsid gene and protein, and the introduction of the ORF2 mutations in the chimeric clones.