CXCL12 and myocardial infarction: Stromal derived factor-1α (SDF-1α/CXCL12) is a CXC chemokine that is up-regulated in experimental and clinical studies of MI and regulates chemotaxis of inflammatory and progenitor cells to sites of myocardial injury, thereby beneficially impacting angiogenesis and ventricular remodelling [[9], [10], [11], [12], [13]].