CCL2 and atherosclerosis: Consistent with less substantial changes in the number of circulating inflammatory cells in mice with Mcp1 deletion in endothelial cells, atherosclerosis progressed similarly in these mice and their control littermates: 2 months after feeding the mice with HFD, the number and size of atherosclerotic lesions in the aorta of mice with Mcp1 deletion in endothelial cells remained unchanged (Fig. 2a,b; Supplementary Fig. 4a–c).