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Evaluation of pre- and post-fusion Human metapneumovirus F proteins as subunit vaccine candidates in mice

机译:对小鼠亚基疫苗候选的蛋白病毒前和融合后融合后和后融合后的融合后和融合后的乳腺疫苗

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摘要

Human metapneumovirus (hMPV) is an important respiratory pathogen especially in young children and elderly subjects. Our objective was to assess the immunogenicity and protection conferred by predominant pre- and post-fusion (F) hMPV-F constructs in Balb/C mice. Immunizations without adjuvant were not immunogenic whereas alum-adjuvanted hMPV-F proteins, regardless of their conformations, generated comparable neutralizing antibody titers with undetectable pulmonary viral titers following viral challenge. In conclusion, we found no apparent advantage for mixtures of predominant pre-fusion F proteins over post-fusion conformations for hMPV vaccination in opposite to recent data obtained with the human respiratory syncytial virus. (C) 2020 Elsevier Ltd. All rights reserved.
机译:人孢子虫(HMPV)是一个重要的呼吸道理原,特别是在幼儿和老年人受试者中。 我们的目的是评估Palb / C小鼠的主要和融合后(F)HMPV-F构建体赋予的免疫原性和保护。 没有佐剂的免疫不是免疫原性,而无论它们的构象,无论均匀,均无明矾 - 辅助的HMPv-F蛋白质,在病毒攻击后产生了与未检测到的肺病毒滴度的相当中和抗体滴度。 总之,我们发现在与人类呼吸合胞病毒的最近获得的近期数据相反的HMPV疫苗接种的融合后构象上的主要预融合蛋白的混合物没有明显的优势。 (c)2020 elestvier有限公司保留所有权利。

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