A method of eliciting an immune response in a patient who has prostate cancer, lung cancer, small cell lung cancer, melanoma, liver cancer, breast cancer, uterine cancer, Merkel cell carcinoma, pancreatic cancer, gallbladder cancer, bile duct cancer, colon or rectum cancer (CRC), urinary bladder cancer, non-small cell lung cancer, kidney cancer, acute myeloid leukemia (AML), chronic lymphocytic leukemia (CLL), ovarian cancer, esophageal cancer, brain cancer, or gastric (stomach) cancer, comprising administering to said patient a composition comprising a peptide in the form of a pharmaceutically acceptable salt, wherein said peptide consists of the amino acid sequence of ALLTFVWKL (SEQ ID NO:
- 4), thereby inducing a T cell response to the prostate cancer, lung cancer, small cell lung cancer, melanoma, liver cancer, breast cancer, uterine cancer, Merkel cell carcinoma, pancreatic cancer, gallbladder cancer, bile duct cancer, colon or rectum cancer (CRC), urinary bladder cancer, non-small cell lung cancer, kidney cancer, acute myeloid leukemia (AML), chronic lymphocytic leukemia (CLL), ovarian cancer, esophageal cancer, brain cancer, or gastric (stomach) cancer.