CD8A and neoplasm: Detection of CD3-positive lymphocytes and CD8-positive lymphocytes in formalin-fixed paraffin-embedded (FFPE) tumor tissues by immunohistochemistry (IHC) showed that both PHA-L and 130 kD protein treatment significantly promoted the infiltration of CD3-positive lymphocytes and CD8-positive lymphocytes in tumor tissue compared with that in the PBS control mice, and 130 kD protein exhibited a more prominent effect compared with PHA-L (Figure 6a).