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Virus-like particle vaccines for poliovirus types 1, 2, and 3 with enhanced thermostability expressed in insect cells

机译:用于脊髓灰质炎病毒类型1,2和3的病毒样颗粒疫苗,具有增强的虫细胞表达的热稳定性

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Poliovirus (PV) is a pathogen that causes poliomyelitis, which may lead to paralysis and fatality. Inactivated PV vaccines (IPVs) and live-attenuated oral PV vaccines (OPVs) are currently used to defend against PV worldwide. Vaccines must be developed in a PV-free environment given the biosafety issues associated with OPV and IPV production and to eradicate PV globally. In this study, PV1, PV2, and PV3 virus-like particles with enhanced thermostability (PV-sVLPs) were produced in large quantities by using a baculovirus expression vector system (BEVS). Mice immunized with PV-sVLPs generated antibodies with strong PV-neutralizing response. In addition, splenocytes collected from immunized mice expressed high levels of IFN-gamma, IL-2, GM-CSF, IL-5, and IL-10 upon PV-sVLPs stimulation. These data suggest that PV-sVLPs can serve as vaccines against PV infection. (C) 2019 Elsevier Ltd. All rights reserved.
机译:Poliovirus(PV)是导致脊髓灰质炎的病原体,这可能导致瘫痪和死亡。 目前使用灭活的PV疫苗(IPV)和活病毒的口腔PV疫苗(OPV)来防止全球光伏。 鉴于与OPV和IPV生产相关的生物安全问题并全球消除PV,必须在PV的环境中开发疫苗。 在该研究中,通过使用杆状病毒表达载体系统(BEV),以大量产生具有增强的热稳定性(PV-SVLP)的PV1,PV2和PV3样病毒样颗粒。 用PV-SVLPS产生的小鼠产生具有强的PV中和反应的抗体。 此外,从免疫小鼠收集的脾细胞表达了PV-SVLPS刺激的高水平IFN-γ,IL-2,GM-CSF,IL-5和IL-10。 这些数据表明PV-SVLP可以用作针对PV感染的疫苗。 (c)2019 Elsevier Ltd.保留所有权利。

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