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    Vaccine. 2006 Mar 6;24(10):1625-32. Epub 2005 Oct 7.

    Intranasal Protollin/F1-V vaccine elicits respiratory and serum antibody responses and protects mice against lethal aerosolized plague infection.

    Source

    ID Biomedical Corporation of Quebec, 525 Cartier Blvd West, Laval, Montreal, Que., Canada H7V 3S8. tjones@idbiomedical.com

    Abstract

    F1-V is a recombinant plague antigen comprising the capsular (F1) and virulence-associated (V) proteins. Given intramuscularly with Alhydrogel, it protects mice against challenge, but is less effective in non-human primates against high-dose aerosolized Yersinia pestis challenge, perhaps because it fails to induce respiratory immunity. Intranasal immunization of mice with F1-V formulated with a Proteosome-based adjuvant (Protollin), elicited high titers of specific IgA in lungs whereas intranasal F1-V alone or intramuscular Alhydrogel-adsorbed F1-V did not. The Protollin-adjuvanted F1-V vaccine also induced high serum titers of specific IgG, comparable to those induced by intramuscular Alhydrogel-adsorbed F1-V. Mice immunized intranasally with Protollin-F1-V were 100% protected against aerosol challenge with 170 LD50 of Y. pestis and 80% against 255 LD50.

    PMID:
    16243411
    [PubMed - indexed for MEDLINE]

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