MUC1 and neoplasm: IHC staining was performed in the tumor tissues, and the results are shown in Figure 4D. The differences in CD4+ and CD8+ T cells were negligible in the NaCl, Al, SZU251 + Al and MUC1 + Al groups, while CD4+ and CD8+ T cells infiltration was significantly promoted by SZU251 + MUC1 + Al.