The antigenic and immunogenic properties of synthetic peptide immunocontraceptive vaccine candidates based on gamete antigens

Abstract

In this study we have investigated the immunogenicity and antigenicity of synthetic immunocontraceptive vaccine candidates containing T- and B-cell epitopes arranged in different geometries. Two epitopes were selected, a B-cell epitope from fox sperm lactate dehydrogenase C4 and a B-cell epitope from murine zona pellucida protein 3. Both were immunogenic in BALB/c mice when coupled to defined T helper cell determinants, eliciting antibodies which bound to the corresponding B-cell epitope and also to the recombinant protein. Because each of these proteins represent important components in the fertilisation process the results encourage further investigation of synthetic immunocontraceptive va..