A vaccine composition, comprising: (a) an antigenic moiety; (b) a fusion peptide comprising: (i) a carrier peptide sequence that promotes the penetration of peptides into cells and tissues; and (ii) a MYC polypeptide sequence; and (c) a pharmacologically acceptable excipient.Una composicion de vacuna, que comprende: (a) un resto antigenico; (b) un peptido de fusion que comprende: (i) una secuencia peptidica transportadora que promueve la penetracion de peptidos en celulas y tejidos; y (ii) una secuencia polipeptidica MYC; y (c) un excipiente farmacologicamente aceptable.