Giuseppe
Emeritus
Vaccine. 2009 Jul 30. [Epub ahead of print]
Poly-gamma-glutamic acid nano-particles combined with mucosal influenza virus hemagglutinin vaccine protects against influenza virus infection in mice.
Okamoto S, Matsuura M, Akagi T, Akashi M, Tanimoto T, Ishikawa T, Takahashi M, Yamanishi K, Mori Y. - Laboratory of Virology and Vaccinology, Division of Biomedical Research, National Institute of Biomedical Innovation, Ibaraki, Osaka 567-0085, Japan.
Adding poly-gamma-glutamic acid nano-particles (gamma-PGA-NPs), a safe, natural material, to subcutaneous immunization with influenza virus hemagglutinin (HA) vaccine increases the protective immune responses against influenza virus in mice. Here, we examined whether intranasal administration of the HA vaccine with gamma-PGA-NPs would induce protection from influenza virus challenge in mice. Intranasal immunization with the mixture of gamma-PGA-NPs and HA vaccine from an influenza virus strain A/PR/8/34 (H1N1) or A/New Caledonia/20/99 (H1N1) enhanced protection of mice from A/PR/8/34 infection. Intranasal immunization with A/New Caledonia/20/99 HA vaccine and gamma-PGA-NPs induced cell-mediated immune responses and neutralizing antibody production for both A/New Caledonia/20/99 and A/PR/8/34. These data suggest that gamma-PGA-NPs may have potential for clinical applications as a mucosal adjuvant.
PMID: 19647814 [PubMed - as supplied by publisher]
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Poly-gamma-glutamic acid nano-particles combined with mucosal influenza virus hemagglutinin vaccine protects against influenza virus infection in mice.
Okamoto S, Matsuura M, Akagi T, Akashi M, Tanimoto T, Ishikawa T, Takahashi M, Yamanishi K, Mori Y. - Laboratory of Virology and Vaccinology, Division of Biomedical Research, National Institute of Biomedical Innovation, Ibaraki, Osaka 567-0085, Japan.
Adding poly-gamma-glutamic acid nano-particles (gamma-PGA-NPs), a safe, natural material, to subcutaneous immunization with influenza virus hemagglutinin (HA) vaccine increases the protective immune responses against influenza virus in mice. Here, we examined whether intranasal administration of the HA vaccine with gamma-PGA-NPs would induce protection from influenza virus challenge in mice. Intranasal immunization with the mixture of gamma-PGA-NPs and HA vaccine from an influenza virus strain A/PR/8/34 (H1N1) or A/New Caledonia/20/99 (H1N1) enhanced protection of mice from A/PR/8/34 infection. Intranasal immunization with A/New Caledonia/20/99 HA vaccine and gamma-PGA-NPs induced cell-mediated immune responses and neutralizing antibody production for both A/New Caledonia/20/99 and A/PR/8/34. These data suggest that gamma-PGA-NPs may have potential for clinical applications as a mucosal adjuvant.
PMID: 19647814 [PubMed - as supplied by publisher]
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