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Enterovirus 71 (EV71) causes the outbreaks of hand-foot-and-mouth disease and results in deaths of hundreds of young children. EV71 virus-like particles (VLPs) are empty capsids consisting of viral structural proteins and can elicit potent immune responses, thus holding promise as an EV71 vaccine candidate. However, an efficient, scalable production and purification scheme is missing. For mass production...
Enterovirus type 71 (EV71) is a virulent form of enteroviruses causing hospitalizations for children less than three years of age. Currently there are no anti-viral therapies or vaccines available for EV71. Due to the high risk of poliomyelitis-like paralysis and fatal encephalitis, an effective vaccine to EV71 could potentially prevent virus-induced morbidity and mortality. In this study, we first...
Baculovirus is an enveloped virus that infects insects in nature and has emerged as a novel vaccine vector. We previously constructed a recombinant baculovirus displaying the hemagglutinin protein (HA) of avian influenza virus (AIV) on the viral envelope (Bac-HA64), and demonstrated the induction of humoral responses in immunized mice. To improve the vector design and explore how the vector forms...
To develop the enterovirus 71 (EV71) vaccine, we previously constructed a recombinant baculovirus (Bac-P1-3CD) co-expressing EV71 P1 (under polyhedrin promoter) and 3CD (under p10 promoter) proteins, which caused P1 cleavage by 3CD protease and self-assembly of virus-like particles (VLPs) in Sf-9 cells. Assuming that reducing the 3CD expression can alleviate the competition with P1 expression and...
Enterovirus 71 (EV71) is an etiologic agent responsible for seasonal epidemics of hand-foot-and-mouth disease and causes outbreaks with significant mortality among young children. To develop the vaccine, we have produced and purified the EV71 virus-like particle (VLP) that resembles the authentic virus in appearance, capsid structure and protein composition. In this study, we further evaluated the...
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