CD8A and neoplasm: Flow cytometry analysis (Fig. 6a, b and Supplementary Fig. 10) showed that the percentages of tumor-infiltrating CD8+ T cells, a crucial indicator of antitumor immunity response activation, in the “Ce6@PPG + L” group and “aCD47/Ce6@PPG” group were 14 folds and 6 folds higher than that in the “blank PPG” group, respectively.