SLC7A8 and head and neck squamous cell carcinoma: 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).