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  • Title: Induction of anti foot and mouth disease virus T and B cell responses in cattle immunized with a peptide representing ten amino acids of VP1.
    Author: Zamorano PI, Wigdorovitz A, Pérez Filgueira DM, Escribano JM, Sadir AM, Borca MV.
    Journal: Vaccine; 1998 Apr; 16(6):558-63. PubMed ID: 9569465.
    Abstract:
    We previously demonstrated that the immunization of cattle with a synthetic peptide representing the amino acid sequence of foot and mouth disease virus (FMDV) type O1 Campos VP1 residues 135-160 (p135-160), containing immunodominant T and B epitopes, was able to induce a strong neutralizing antibody (NA) response. The epitope mapping of p135-160 identified T and B epitopes in the area restricted to amino acid residues 135-144 (Zamorano et al. 1994, Virology 201; 1995, Virology 212). We are now reporting that, although immunization with a synthetic peptide covering amino acids 135-144 (p135-144) failed to elicit an anti-FMDV response, a synthetic peptide representing a tandem duplication of the VP1 epitope 135-144 (p135-144 x 2) was very efficient in inducing a strong NA response in cattle. Both the antibody and T cell responses elicited by p135-144 x 2 were highly specific for the VP1 135-144 sequence since no reactivity was detected against synthetic peptides representing the 140-160 sequence of VP1. Additionally, both responses to B and T epitopes were long lasting in the immunized cattle. These results constitute a good example of the improvement of the immune response by rational handling of precisely identified B and T epitopes. To our knowledge, this is the shortest native amino acid sequence to induce a significant NA response to FMDV in cattle.
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