The mRNA expression level of MCP-1, SDF-1, MIP-1α and MCP-3, four previously reported important chemokines in the myocardial infarction, were firstly detected in this study to indicate if anyone might contribute to the myocardial homing of MSCs in DCM [6,17,21,22]. Here, CCL3 is linked to familial dilated cardiomyopathy.