Figure EV1. CNS‐related mononuclear cells and their marker molecules.
Siglec‐H expression is almost confined to parenchyma‐resident microglia. CCR2 is a near‐specific marker for infiltrating monocytes. CD206 is specifically expressed by CNS‐associated macrophages residing in the CNS boundary region (i.e., leptomeningeal macrophages, choroid plexus macrophages, and perivascular macrophages).