CCL2 and type 2 diabetes mellitus: We found that the concentrations of CC chemokines (e.g. CCL1, CCL2, CCL4, CCL5 and CCL11), CXC chemokines (e.g. CXCL8 and CXCL10) and CX3CL1 chemokines were significantly higher in patients with T2DM than in the controls.