CXCL10 and myocardial infarction: Lastly, while studying the role of CXCL10 in cardiac repair after myocardial infarction, investigators found that both CXCL10-null and wild-type mice had comparable infarct size, but the CXCL10-null mice exhibited a hypercellular early reparative response, delayed contraction of scar, early dilation, and wall thinning [42].