Journal
VACCINE
Volume 28, Issue 14, Pages 2615-2623Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.vaccine.2010.01.012
Keywords
beta-Glucan; Antifungal vaccine; Antifungal antibody; Adjuvant
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A laminarin-diphtheria toxoid (CRM197) conjugate vaccine conferred protection against fungal infections in mice. We have now generated novel beta-glucan-CRM197 vaccines, with either natural (Curd-CRM197) or synthetic linear (15mer-CRM197), or beta-(1,6)-branched (17mer-CRM197) beta-(1,3)-oligosaccharides, formulated with the human-acceptable adjuvant MF59. Curd-CRM197 and 15mer-CRM197 conjugates, which induced high titers of anti-beta-(1,3)-glucan IgG, but no antibodies against beta-(1,6)-glucan, conferred protection to mice lethally challenged with C. albicans. In contrast, the 17mer-CRM197 conjugate, which induced anti-beta-(1,6)-glucan antibodies in addition to the anti-beta-(1,3)-glucan IgG, was non-protective. These data provide some insights on beta-glucan epitope(s) mediating antifungal protection and open the way to develop a synthetic oligosaccharide vaccine against fungal diseases. (C) 2010 Elsevier Ltd. All rights reserved.
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