CCL2 and thyroid gland carcinoma: Continuous cell lines obtained from ATCs and well-differentiated thyroid carcinomas (WDTCs) secrete different cytokines and chemokines, such as GRO-α, GM-CSF, IL-1α, IL-6, CXCL8/IL-8, monocyte chemotactic protein-1 (MCP-1), and TNF-α [132,133,134,135,136,137,138,139].