natCu-DOTHA2-PSMA and PMPA-2 inhibitory concentration 50 (IC50) values determined from average and standard deviations in triplicate on the human prostate cancer cell line LNCaP in competition with 64Cu-DOTHA2-PSMA and 68Ga-PSMA-617 are shown in Table 2. Here, FOLH1 is linked to prostate cancer.