CCL2 and myocardial infarction: Accordingly, qRT-PCR analysis demonstrated that the expression of proinflammatory cytokines, including interleukin-6 (Il6), Il1β, tumor necrosis factor–α (Tnfα), and monocyte chemoattractant protein-1 (Mcp1), were notably decreased in HMRKO mouse hearts after MI (Fig. 2E).