Compositions useful to induce anti-TACA immune response and kits comprising the same and methods of using the compositions to treat and prevent cancer are disclosed. Isolated human antibodies which bind to a carbohydrate mimetic peptide and methods of making the same and using the same to treat and prevent cancer are disclosed. Isolated human NK cells useful to kill tumor cells, and isolated human dendritic cells, and methods of making the same and using the same to treat and prevent cancer are disclosed.