HLA-C and Alzheimer disease: Recent profiling of microglia by mass cytometry [46, 47] identified several subsets of resident myeloid cells in the naive mouse brain including CD14high, CXCR4high, CCR5high, CD115 (Csf1r)high as well as MHC-IIhighCD44high subsets [47], although proportions of these subsets in AD models is unknown.