Granulocyte-colony stimulating factor (G-CSF), monocyte chemotactic protein-1 (MCP-1), IL-7, IL-8 and IL-15 were increased in BPH tissue of patients with larger prostate size, while the concentration of eotaxin was reduced compared to patients with lower prostate size (Figure 5C). This evidence concerns the gene IL7 and benign prostatic hyperplasia.