FOLH1 and posterior cortical atrophy: As observed in the bright-field image, although PCa tissue-derived PDO was completely disintegrated at 6 h after co-cultured with NK cells in the presence of IgG or anti-PSMA Ab when compared with the control group, anti-PSMA Ab treatment enhanced the anti-tumor effects of NK cells against PCa PDO after co-culture for 2 h (Figure 5C).