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首页> 外文期刊>Vaccine >Co-administration of non-carrier nanoparticles boosts antigen immune response without requiring protein conjugation.
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Co-administration of non-carrier nanoparticles boosts antigen immune response without requiring protein conjugation.

机译:非载体纳米颗粒的共同给药可增强抗原免疫反应,而无需蛋白质偶联。

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摘要

Nanotechnology promises a revolution in medicine including through new vaccine approaches. The use of nanoparticles in vaccination has, to date, focused on attaching antigen directly to or within nanoparticle structures to enhance antigen uptake by immune cells. Here we question whether antigen incorporation with the nanoparticle is actually necessary to boost vaccine effectiveness. We show that the immunogenicity of a sub-unit protein antigen was significantly boosted by formulation with silica nanoparticles even without specific conjugation of antigen to the nanoparticle. We further show that this effect was observed only for virus-sized nanoparticles (50 nm) but not for larger (1000 nm) particles, demonstrating a pronounced effect of nanoparticle size. This non-attachment approach has potential to radically simplify the development and application of nanoparticle-based formulations, leading to safer and simpler nanoparticle applications in vaccine development.
机译:纳米技术有望通过包括新疫苗方法在内的医学革命。迄今为止,纳米颗粒在疫苗接种中的使用集中于将抗原直接附着于纳米颗粒结构上或内部,以增强免疫细胞对抗原的吸收。在这里,我们质疑抗原与纳米颗粒的结合是否实际上对于提高疫苗效力是必要的。我们显示,即使没有将抗原特异性结合至纳米颗粒,也可以通过二氧化硅纳米颗粒的配制显着提高亚单位蛋白抗原的免疫原性。我们进一步表明,仅对病毒大小的纳米颗粒(50 nm)观察到了这种作用,而对于较大的(1000 nm)颗粒则没有观察到,表明了纳米颗粒大小的明显作用。这种非连接方法有可能从根本上简化基于纳米颗粒的制剂的开发和应用,从而导致在疫苗开发中更安全,更简单的纳米颗粒应用。

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