FAP and neoplasm: To explore if FAP-12 CAR-T cells targeting CAFs could collaborate with Nectin4-7.19 CAR-T cells to enhance the anti-tumor efficacy, we constructed FAP-targeted CAR (Figures 6A, B) and found that there was no significant difference in phenotypic composition between FAP CAR-T and FAP-12 CAR-T cells (Figure 6C).