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B cell mediated priming following pneumococcal colonization

机译:肺炎球菌定植后B细胞介导的启动

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The primary reservoir for Streptococcus pneumoniae is the human nasopharynx, and colonization is often the initial step in pathogenesis. Recently we have demonstrated that pneumococcal colonization primes the immune response to subsequent vaccination with the pneumococcal conjugate vaccine (CPV). In this study we wished to determine if colonization stimulates the production of B cell memory that is activated following vaccination with CPV. To test this hypothesis, we colonized mice with S. pneumoniae serotype 14, adoptively transferred their B cells and CD4+ T cells into naive recipients, and vaccinated the recipients with CPV. Our results indicate that pneumococcal colonization stimulates the production of memory B cells which are responsible for enhancing the immune response to CPV vaccination.
机译:肺炎链球菌的主要贮水库是人鼻咽,定居通常是发病机理的第一步。最近,我们已经证明,肺炎球菌定植可引发针对随后接种肺炎球菌结合疫苗(CPV)的免疫反应。在这项研究中,我们希望确定定植是否刺激了CPV疫苗接种后激活的B细胞记忆的产生。为了验证这一假设,我们将肺炎链球菌血清型14的小鼠定殖,将其B细胞和CD4 + T细胞过继转移到幼稚的受体中,并用CPV接种受体。我们的结果表明,肺炎球菌定植刺激了记忆B细胞的产生,这些记忆B细胞负责增强对CPV疫苗的免疫反应。

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