Moreover, the dual targeting CD19/CD3ε + TAG‐72/CD3δ or CD19/CD3ε + TAG‐72/CD3γ FP T cells killed TAG‐72hi CD19lo tumor cells, while the CD19/CD3ε single targeting FP T cells could not eradicate CD19lo cells (Figure 6b). The gene discussed is CD3E; the disease is neoplasm.