CCL2 and cardiomyopathy: The results confirmed that MCP-1, the best-known chemotactic cytokine implicated in the development of cardiomyopathy [29,30,31], was essentially undetectable in control hearts while it was significantly increased in the LV myocardium of untreated D3 rats and consistently decreased in RSV-treated animals (D3_RSV group; Figure 3a).