LNCaP tumor uptake (% ID/g) of  68Ga-PSMA-11 (7.28 ± 0.82) was significantly higher than that of CWR22Rv1 (3.12 ± 0.35, p < 0.01) and PC3 (1.21 ± 0.07, p < 0.001) and can be blocked by preinjection of 2-PMPA indicating PSMA binding specificity. This evidence concerns the gene FOLH1 and neoplasm.