Efficacy of the Anti‐Candida rAls3p‐N or rAls1p‐N Vaccines against Disseminated and Mucosal Candidiasis
1Department of Medicine, Los Angeles Biomedical Research Institute at Harbor–University of California, Los Angeles (UCLA) Medical Center, Torrance, and 2David Geffen School of Medicine at UCLA, Los Angeles
We have shown that vaccination with the recombinant N terminus of Als1p (rAls1p‐N) protects mice against disseminated and oropharyngeal candidiasis. We now report that vaccination of mice with a related candidate, rAls3p‐N, induces a broader antibody response than rAls1p‐N and a similar cell‐mediated immune response. The rAls3p‐N vaccine was equally as effective as rAls1p‐N against disseminated candidiasis but was more effective than rAls1p‐N against oropharyngeal or vaginal candidiasis. Antibody titers did not correlate with protection against disseminated candidiasis, but delayed‐type hypersensitivity did. The rAls3p‐N vaccine is a promising new vaccine candidate for further exploration to prevent systemic and mucosal candidal infections.
Received 2 January 2006; accepted 10 February 2006; electronically published 6 June 2006.
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Potential conflicts of interest: B.J.S, A.S.I, Y.F, S.G.F, M.R.Y., and J.E.E. own equity in NovaDigm Therapeutics, Inc., which is developing candidal vaccine technologies. NovaDigm Therapeutics, Inc., provided no financial support for these studies.
Financial support: Public Health Service (grants R01 AI19990 and AI063382 to J.E.E., K08 AI060641 to B.J.S., R56 AI63503‐01A1 to A.S.I, R01 A1054928 and DE017088 to S.G.F, and R01 AI48031 to M.R.Y.); Bristol Myers Squibb (unrestricted Freedom to Discover Grant for Infectious Disease to J.E.E.); Burroughs Wellcome (New Investigator Award in Molecular Pathogenic Mycology to A.S.I.).





