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首页> 外文期刊>Emerging Infectious Diseases >Antigenic Diversity of Human Sapoviruses
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Antigenic Diversity of Human Sapoviruses

机译:人沙波病毒的抗原多样性

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Sapovirus (SaV) is a causative agent of gastroenteritis. On the basis of capsid protein (VP1) nucleotide sequences, SaV can be divided into 5 genogroups (GI–GV), of which the GI, GII, GIV, and GV strains infect humans. SaV is un-cultivable, but expression of recombinant VP1 in insect cells results in formation of viruslike particles (VLPs) that are antigenically similar to native SaV. In this study, we newly expressed SaV GII and GIV VLPs to compare genetic and antigenic relationships among all human SaV genogroups. Hyperimmune antiserum samples against VLPs reacted strongly with homologous VLPs. However, several antise-rum samples weakly cross-reacted against heterologous VLPs in an antibody ELISA. Conversely, an antigen ELISA showed that VLPs of SaV in all human genogroups were antigenically distinct. These fi ndings indicate a likely corre-spondence between SaV antigenicity and VP1 genogroup-ing and genotyping
机译:Sapovirus(SaV)是肠胃炎的病原体。根据衣壳蛋白(VP1)核苷酸序列,SaV可以分为5个基因组(GI-GV),其中GI,GII,GIV和GV株感染人类。 SaV无法培养,但是重组VP1在昆虫细胞中的表达导致形成病毒样颗粒(VLP),其抗原性类似于天然SaV。在这项研究中,我们新表达了SaV GII和GIV VLP,以比较所有人类SaV基因组之间的遗传和抗原关系。针对VLP的超免疫抗血清样品与同源VLP强烈反应。但是,在抗体ELISA中,几种抗-瘤胃样品对异源VLP的交叉反应较弱。相反,抗原ELISA显示所有人类基因组中SaV的VLP在抗原上是不同的。这些发现表明,SaV抗原性与VP1基因分型和基因分型之间可能存在对应关系

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