The invention is concerned with epitopes derived from human papilloma
virus, and peptides having a size of about 22 45 amino acid residues
comprising minimal T cell epitopes. The invention further provides
clinically relevant approaches for immunizing subjects against
(Myco)bacterially and/or virally infected cells or tumor cells, and in
particular against HPV. The invention demonstrates that peptide sequences
of 22 35 amino acid residues in length can induce both peptide-specific
CD8+ cytolytic cells and CD4+ T-helper cells. Moreover, the invention
demonstrates that vaccination with 22 35 residue long peptides results in
a more vigorous CD8+ cytolytic T-cell response than vaccination with
peptides of the exact minimal CTL epitope length. The invention further
demonstrates that the intrinsic capacity of certain minimal CTL epitopes
which instead of activating cytolytic effector cells tolerize these
cytolytic cells, can be overcome by use of these 22 35 amino acid long
peptides. The invention further provides clinically relevant approaches
for vaccination and/or treatment of subjects against HPV. The invention
also provides methods and uses suited to treat subjects suffering from
progressive lesions and/or cervical cancer.