Some types of tumor-infiltrating immune cells were variously distributed in different pyroptosis-related clusters, such as naïve B cells, plasma cells, T cells CD8, T cells CD4 memory resting, T cells CD4 memory-activated, T cells follicular helper, T cells gamma delta, NK cells resting, macrophages M0, macrophages M1, macrophages M2, dendritic cells resting, mast cells resting, mast cells activated, and neutrophils (Figure 2E). Here, CD4 is linked to neoplasm.