MCP1(CCL2, MCP-1; Monocyte Chemoattractant Protein-1 (MCP-1): In MCP-1 (−/−) db/db mice, kidney macrophage accumulation and the progression of diabetic renal injury were substantially reduced compared to MCP-1(+/+) db/db mice with equivalent diabetic conditions [92]. Here, CCL2 is linked to injury.