Immunogenic compositions comprising cea muc1 and tert

The present disclosure provides: (a) isolated immunogenic CEA polypeptides; (b) isolated nucleic acid molecules encoding (i) an immunogenic CEA polypeptide, (ii) an immunogenic CEA polypeptide and an immunogenic MUC1 polypeptide, (iii) an immunogenic CEA polypeptide and an immunogenic TERT polypeptide, or (iv) an immunogenic CEA polypeptide, an immunogenic MUC1 polypeptide, and an immunogenic TERT polypeptide; (c) compositions comprising an isolated nucleic acid molecule; and (d) methods relating to uses of the immunogenic CEA polypeptides, nucleic acid molecules, and compositions.