Figure 2.

Flow cytometry analysis of brain hemispheres [contralateral (A) and ipsilateral (B) to the lesion] from CD45.1 mice subjected to MCAO and injected intravenously with 4 million monocytes from CD45.2 mice on the day after the insult and killed 2 d later. Note the presence of high numbers of grafted CD45.2^high/CD11b^high and endogenous CD45.1^high/CD11b^high monocytes ipsilateral to the ischemic lesion. The CD45.1^low/CD11b^high cells are microglia.