IHC and ISH experiments conducted using mice subcutaneous tumor tissue sections showed that FOXP1 and PBRM1 expression was significantly lower and that for PD-L1 was significantly higher in the BART11+BART17-3p and BART11+BART17-3p+ T cells group than those in the NC and NC+ T cells groups. Here, FOXP1 is linked to neoplasm.