FOLH1 and neoplasm: For example, 68Ga-FAPI, 68Ga-PSMA, and 68Ga-DOTATATE were used for tumor diagnosis by PET, while 177Lu-FAPI, 177Lu-PSMA, and 177Lu-DOTATATE have also been evaluated in tumor treatment in the clinic (Drude et al., 2017; Lindner et al., 2019; Sun et al., 2020; Strosberg et al., 2021).