We demonstrate that IL-17 contributes to similar transmigration of CD14+CD16− monocytes from STEMI and post-STEMI patients through a HUVEC monolayer; we also found that IL-17 preferentially contributes to the transmigration of CD14+CD16+/CD14+CD16++ monocytes from post-STEMI patients. The gene discussed is IL17A; the disease is ST Elevation Myocardial Infarction.