As the tissue was collected at an early treatment time point to allow histological analysis, residual tumor presence was expected as shown in Figure 4F. The groups treated with AbTCR T cells demonstrated significantly lower GPC2 expression, with the hCT3 AbTCR T cell group showing the lowest tumor cell staining intensity (H-score 54.0) compared to the mock (H-score 235.69) and CT3 CAR groups (H-score 197.96). The gene discussed is GPC2; the disease is neoplasm.