Microglia, Monocytes, and the Recurrence of Anxiety in Stress-Sensitized Mice.

To the Editor: We read with great interest the article by Weber et al. (1) in Biological Psychiatry describing the effects of microglia elimination and repopulation on stress sensitization induced by repeated social defeat (RSD). The article highlights brain-immune interactions and, in particular, the importance of stress-primed microglia for monocyte accumulation in the brain of RSD-sensitized mice following acute stress. The transcriptomic analysis of microglia 24 days after RSD could be very useful to other researchers, so the authors may wish to make this information accessible to the community by depositing it to an appropriate data repository.