کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2407713 1103139 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influenza hemagglutinin vaccine with poly(γ-glutamic acid) nanoparticles enhances the protection against influenza virus infection through both humoral and cell-mediated immunity
موضوعات مرتبط
علوم زیستی و بیوفناوری ایمنی شناسی و میکروب شناسی ایمونولوژی
پیش نمایش صفحه اول مقاله
Influenza hemagglutinin vaccine with poly(γ-glutamic acid) nanoparticles enhances the protection against influenza virus infection through both humoral and cell-mediated immunity
چکیده انگلیسی

Subcutaneous immunization with an influenza hemagglutinin (HA) vaccine can induce the production of virus-neutralizing antibodies, but not a cell-mediated immune response. Here we tested whether amphiphilic poly(gamma-glutamic acid)-graft-l-phenylalanine copolymers (gamma-PGA-NPs), which are derived from a bacterial capsular exopolymer produced by certain Bacillus natto strains, were an effective adjuvant for systemic influenza HA vaccination. Subcutaneous immunization with a mixture of HA vaccine and gamma-PGA-NPs induced higher mononuclear cell proliferation and the production of gamma-interferon (IFN-gamma), interleukin (IL)-4, and IL-6 upon HA restimulation, and enhanced not only anti-HA neutralizing antibody production but also the influenza virus-specific cell-mediated immune response, including CTL activity, compared with immunization with HA alone or a mixture of HA and aluminum adjuvant. HA vaccine with gamma-PGA-NPs protected mice against challenges with lethal doses of homologous influenza virus. The results indicate that adding gamma-PGA-NPs to the HA vaccine promotes effective protection and identifies gamma-PGA-NPs as a new, effective, and potent candidate adjuvant for a subcutaneous influenza virus vaccine.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Vaccine - Volume 25, Issue 49, 28 November 2007, Pages 8270–8278
نویسندگان
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