High enrichment of all three types of dendritic cells was associated with better prognosis of TCGA-HNSCC, while the enrichment of SLC7A8 + macrophages and FCN1 + S100A12 + monocytes was not associated with the prognosis of TCGA-HNSCC (Fig. S4). Here, FCN1 is linked to head and neck squamous cell carcinoma.