CD14 and head and neck squamous cell carcinoma: In head and neck squamous cell carcinoma, Cilo et al. mapped possible cell–cell interactions in human papillomavirus (HPV)- and HPV+ HNSCC, respectively.236 Almost all immune cell types from HPV- tumors showed unique ligand–receptor pairs versus other cell types, whereas unique communications of HPV+ tumors were predicted across pDCs, CD14+ cells, CD16+ cells, and DCs.