IL6 and neoplasm: For example, CC cells have increased the production of IL-6, which stimulates stroma fibroblasts to produce CCL20 cytokine through the CCAAT/enhancer-binding protein β (C/EBPβ) signaling pathway, which in turn is related to the increased tumor recruitment of CD4/IL17/CCR6+ Th17 pro-tumorigenic cells [41,101].