IL10 and head and neck squamous cell carcinoma: While IL-12 transcripts in circulating CD11b+CD14+HLA-DRhi monocytes were too low to be determined, expression of IL-10 transcripts was down-regulated in CD11b+CD14+HLA-DRhi monocytes from HNSCC patient PBMC (n = 14, p = 0.02) after cetuximab treatment.