CCR2 and cardiomyopathy: Similar to mice, cardiac CD45+CD64+CD14+ macrophages in patients with cardiomyopathy can also be categorized based on CCR2 and MHC-II (HLA-DR2) expression: CCR2−MHC-IIhi, CCR2+MHC-IIhi, and CCR2+MHC-IIlo subsets [52].