We first explored the correlation between the metastasis model and PRAD immune cell infiltration, and we found that between high and low risk groups, B cell, T cell CD4 + memory, T cell CD4 + central memory, T cell CD8 + effector memory, Class-switched memory B cell, Common lymphoid progenitor, Endothelial cell, Granulocyte-monocyte progenitor, Mast cell, Neutrophil, B cell memory, T cell CD4 + Th2, stroma score and microenvironment score (Fig. 8A-B). Here, CD4 is linked to prostate adenocarcinoma.