As shown in Figure 11A, in HNSCC, BAK1 has a positive correlation with CD8+ T cells, CD4+ T cells, neutrophils, and DC infiltration while having a negative correlation with B cells and macrophage cell infiltration; as shown in Figures 11B–D, NLRP1, CHMP7, and RIPK1 genes and immune cell infiltration all show some positive correlation. This evidence concerns the gene NLRP1 and head and neck squamous cell carcinoma.