CD274 and neoplasm: WT MC38 and PD-L1-KO MC38 cells were subcutaneously inoculated into the left flank of C57BL/6 mice, and after 10 days, T-cells or BsTE:T were intravenously injected into these mice, and tumor sizes were measured every 2 days until the tumor volume reached 1,000 mm3.