Therefore, we evaluated the potential role of MCP-1/CCR2 post-UTI chronic pain by evaluating expression in the dorsal root ganglia (DRG) of bitransgenic reporter engineered to express MCP-1 and CCR2 as fusion proteins with red fluorescent protein (RFP) and green fluorescent protein (GFP), respectively17. Here, CCL2 is linked to bacterial urinary tract infection.