Seven days after myocardial infarction, Ly-6Clow (CCR2low CX3CR1high) monocytes promote angiogenesis and the release of collagen and elastin with the aid of tumor necrosis factor alpha (TNFα), interleukin 1 beta (IL-1β), and interleukin 6 (IL-6)3. Here, IL1B is linked to myocardial infarction.