Previously, our group developed one 68Ga-labeled GRPR antagonist ([68Ga]Ga-TacsBOMB5) [16] and two 68Ga-labeled GRPR agonists ([68Ga]Ga-LW01110 and [68Ga]Ga-LW01142) [17] for detecting GRPR-expressing cancer with positron emission tomography (PET). The gene discussed is GRPR; the disease is cancer.