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一种新型乙型肝炎疫苗含有 AdvaxTM,一种来源于德尔塔菊粉的多糖佐剂,在临床前研究中具有良好的体液和细胞免疫原性,且具有最小的反应原性。

A novel hepatitis B vaccine containing Advax™, a polysaccharide adjuvant derived from delta inulin, induces robust humoral and cellular immunity with minimal reactogenicity in preclinical testing.

机构信息

Vaxine Pty Ltd., Bedford Park, Adelaide 5042, Australia.

出版信息

Vaccine. 2013 Apr 8;31(15):1999-2007. doi: 10.1016/j.vaccine.2012.12.077. Epub 2013 Jan 7.

Abstract

Although current HBV vaccines have an outstanding record of safety and efficacy, reduced immunogenicity is a problem in those of older age, or having renal impairment or diabetes mellitus. In this study, we tested the ability of Advax™ adjuvant, a novel polysaccharide adjuvant based on delta inulin, to enhance the immunogenicity of hepatitis B surface antigen (HBs) in mice and guinea pigs by comparison to the traditional alum adjuvant. Advax™ provided antigen-sparing, significantly enhanced both anti-HBs antibody titers, and anti-HBs CD4 and CD8 T-cells, with increases in Th1, Th2 and Th17 cytokine responses. Unlike alum, the adjuvant effect of Advax™ was seen even when injected 24h before the HBs antigen. Advax™ adjuvant similarly enhanced humoral and cellular immune responses in guinea pigs to a third generation preS-HBs antigen. Advax™ adjuvant when combined with HBs antigen could provide enhanced protection over current generation HBV vaccines for immunization of low responder populations.

摘要

尽管目前的乙型肝炎病毒疫苗具有出色的安全性和功效记录,但在年龄较大、肾功能不全或患有糖尿病的人群中,其免疫原性会降低。在这项研究中,我们通过与传统的明矾佐剂相比,测试了 Advax™佐剂(一种基于德尔塔菊粉的新型多糖佐剂)增强乙型肝炎表面抗原(HBs)在小鼠和豚鼠中的免疫原性的能力。Advax™提供了抗原节省,显著增强了抗-HBs 抗体滴度和抗-HBs CD4 和 CD8 T 细胞,增加了 Th1、Th2 和 Th17 细胞因子反应。与明矾不同的是,即使在注射 HBs 抗原前 24 小时注射,Advax™佐剂也能发挥佐剂作用。Advax™佐剂同样增强了豚鼠对第三代前 S-HBs 抗原的体液和细胞免疫反应。Advax™佐剂与 HBs 抗原结合使用时,可为免疫应答较低的人群提供比现有乙型肝炎病毒疫苗更好的保护作用。

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