PSMB9 and neoplasm: To analyze the purity of TC-1-GLUC-LMP2, TC-1 and the 30th generation TC-1-GLUC-LMP2 cells were detected by flow cytometry, and the results showed that the proportion of FTTC-labeled TC-1-GLUC-LMP2 cells was 98.7% (Figure 3B), suggesting that almost all TC-1-GLUC-LMP2 tumor cells stably and efficiently expressed the LMP2 protein.