Moreover, we observed that two kinds of tumor-infiltrating immune cells were positively correlated with RIPK4 expression, including monocytes and T cell CD4 memory resting; five kinds of TICs were negatively correlated with RIPK4 expressions, including T cell gamma delta, T cell follicular helper, T cell CD8, T cell CD4 memory activated, and Macrophages M1. This evidence concerns the gene CD4 and neoplasm.