These antigens include recombinant mouse prostate-acid phosphatase (PAP) (Fong et al, 2001), human PAP (Small et al, 2000), PSA proteins or RNA (Heiser et al, 2002; Barrou et al, 2004), PSMA peptides (Tjoa et al, 1996), allogeneic tumour lysate (Pandha et al, 2004) and RNA amplified from autotumour cells (Heiser et al, 2001). Here, FOLH1 is linked to neoplasm.