CCL2 and Hashimoto thyroiditis: In previous studies an increase has been reported in the production of monocyte cytokine, comprising monocyte chemoattractant protein-1 (MCP-1), and T lymphocyte cytokine production, including interferon gamma (INF-γ) and tumor necrosis factor alpha (TNF-α) in patients with Hashimoto’s thyroiditis (Leyhe and Müssig 2014; Kokkotou et al. 2002; Karanikas et al. 2005).