With respect to the cytokines IL-8, IL-9, IL-1β and MCP-1, which are known to be important in initiation and maintenance of inflammatory processes and pulmonary fibrosis [7,8,45], the levels of these biomarkers showed no correlations with changes in lung ventilation function parameters in the three groups of miners in our studies. The gene discussed is CCL2; the disease is pulmonary fibrosis.