Supplementary Figure 12: Model of the origin of repopulated microglia.

(a) Repopulated microglia are not derived from blood cells. (b) Repopulated microglia are not derived from Nestin-positive progenitor cells. (c) Repopulated microglia are not derived from astrocytes, OPCs or neurons. (d) Repopulated microglia are derived from the direct proliferation of residual microglia.