Development of multi-epitope vaccines targeting wild-type sequence p53 peptides.

Loss of p53 tumor-suppressor function is the most common abnormality in human cancer, which can result in enhanced presentation to immune cells of wild-type (wt)-sequence peptides from tumor p53 molecules, thus providing the rationale for wt p53 peptide-based cancer vaccines. We review evidence from preclinical murine tumor models and preclinical studies that led to the clinical introduction of wt p53 peptide-based vaccines for cancer immunotherapy. Overall, this review illustrates the complex process of wt p53 epitope selection and the issues and concerns involved in the application of p53-based vaccines for patients with cancer.