Analysis depending on the clinical parameters of SLE showed that the levels of IL-10 (p = 0.03) and MCP-1/CCL2 (p = 0.01) are higher in patients with a SELENA-SLEDAI index score of more than 7 than in patients with a SELENA-SLEDAI index score of less than 7. The gene discussed is CCL2; the disease is systemic lupus erythematosus.