Further analysis found that 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. Here, CD4 is linked to neoplasm.