CC Chemokine Receptor-1 Activates Intimal Smooth Muscle–Like Cells in Graft Arterial Disease

To the Editor: Shimizu et al have made further contributions toward the understanding of graft arterial disease, highlighted by their latest finding of CC chemokine receptor-1 involvement in the activation of intimal smooth muscle–like cells in this disease entity.1 In this article, the authors made a clear distinction between intimal and medial smooth muscle cells based on numerous important functional differences and refer to the intimal smooth muscle cells as smooth muscle–like cells.1 I am interested in whether …