FOLH1 and neoplasm: In addition, we compared the tumor uptake of 177Lu-DOTA-CC-PSMA (click chemistry method) and that of 177Lu-PSMA-617 (conventional labeling method) and found that the tumors had significantly higher uptake of the click chemistry-synthesized 177Lu-DOTA-CC-PSMA (Fig. 2C, P < 0.05 within 24 h).