Figure 6. Immune infiltration and immunofluorescence identification. (A) Correlation of gene expression levels of COL3A1, EEF2, FN1, RAC1, and SDC2 with tumor purity and CD4+ T cells. (B) Tumor infiltrating lymphocytes profiles in the BM PCa (1. BM tumor, 2 normal tissues). Normal tissue (C) and BM tumor (D) immunofluorescence labeling for CD4 (red) and FOXP3 (green), as well as merged images. (n =6, P < 0.05, 200X).