作为抗原载体的重组猪细小病毒样颗粒的研制,该颗粒由携带猪圆环病毒2型免疫反应性表位的杂交VP2蛋白形成。

Development of recombinant porcine parvovirus-like particles as an antigen carrier formed by the hybrid VP2 protein carrying immunoreactive epitope of porcine circovirus type 2.

作者信息

Pan Qunxing, He Kongwang, Huang Kehe

机构信息

Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, Jiangsu Province, China.

出版信息

Vaccine. 2008 Apr 16;26(17):2119-26. doi: 10.1016/j.vaccine.2008.02.037. Epub 2008 Mar 13.

Abstract

Virus-like particles (VLPs) are non-replicative vectors for delivery of heterologous epitopes and induction of immune responses. In this study, a self-assembled porcine parvovirus (PPV) VP2 capsid protein [PPV:VLP-(PCV2)] carrying immunoreactive epitopes, residues 165-200 from the Porcine circovirus 2 (PCV2) virus nucleoprotein was constructed. Immunogenicity study was carried out with hybrid VLPs derived from HEK-293 cells infected with recombinant adenovirus vectors. To our knowledge, this study presents the first demonstration that hybrid non-replicative PPV VLPs carrying PCV2 immunoreactive epitopes can induce stronger antibody responses against PCV2 than recombinant adenovirus of PCV2 ORF2, in the absence of any adjuvant. The hybrid VLPs [PPV:VLP-(PCV2)] might be a promising candidate vaccine for better prevention of the diseases associated with PCV2 as well as with co-infection by PCV2 and PPV.

摘要

病毒样颗粒(VLPs)是用于递送异源表位和诱导免疫反应的非复制性载体。在本研究中,构建了一种自组装的携带免疫反应性表位的猪细小病毒(PPV)VP2衣壳蛋白[PPV:VLP-(PCV2)],其免疫反应性表位来自猪圆环病毒2型(PCV2)病毒核蛋白的第165 - 200位氨基酸残基。使用感染重组腺病毒载体的HEK - 293细胞衍生的杂交VLPs进行了免疫原性研究。据我们所知,本研究首次证明,在没有任何佐剂的情况下,携带PCV2免疫反应性表位的杂交非复制性PPV VLPs比PCV2 ORF2重组腺病毒能诱导更强的针对PCV2的抗体反应。杂交VLPs [PPV:VLP-(PCV2)]可能是一种有前景的候选疫苗,用于更好地预防与PCV2相关的疾病以及PCV2和PPV的共感染。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索